sunway tg te hw en

15P00EGB100 
SUNWAY TG TE - STANDARD
THREE-PHASE PHOTOVOLTAIC INVERTER WITH EXTERNAL TRANSFORMER
USER MANUAL
- INSTALLATION GUIDE -
Updated: 03/07/2013
English
Rev. 04
•
This manual is integrant and essential to the product. Carefully read the instructions contained
herein as they provide important hints for use and maintenance safety.
•
This product is to be used only for the purposes it has been designed to. Other uses should be
considered improper and dangerous. The manufacturer is not responsible for possible damages
caused by improper, erroneous and irrational uses.
•
Elettronica Santerno is responsible for the product in its original setting.
•
Any changes to the structure or operating cycle of the product must be performed or authorized by
Elettronica Santerno.
•
Elettronica Santerno assumes no responsibility for the consequences resulting by the use of nonoriginal spare-parts.
•
Elettronica Santerno reserves the right to make any technical changes to this manual and to the
product without prior notice. If printing errors or similar are detected, the corrections will be included
in the new releases of the manual.
•
The information contained herein is the property of Elettronica Santerno and cannot be reproduced.
Elettronica Santerno enforces its rights on the drawings and catalogues according to the law.
Elettronica Santerno S.p.A.
Strada Statale Selice, 47 - 40026 Imola (BO)
Tel. +39 0542 489711 - Fax +39 0542 489722
santerno.com [email protected]
SUNWAY TG TE
STANDARD
INSTALLATION GUIDE
Table of Contents
TABLE OF CONTENTS ................................................................................................ 2
INDEX OF FIGURES .................................................................................................... 6
INDEX OF TABLES ...................................................................................................... 8
1. GENERAL INFORMATION ON THE PRODUCT.................................................... 10
1.1.
1.2.
1.3.
1.4.
1.5.
1.6.
Operating Principles .......................................................................................... 11
Main Integrated Standard Functions .................................................................. 13
Optional Functions ............................................................................................. 13
Scope of this Manual ......................................................................................... 14
For Whom this Manual is Intended .................................................................... 14
Attached Documentation ................................................................................... 14
1.6.1.
1.6.2.
1.6.3.
1.7.
1.8.
1.9.
Preservation of the Documentation ........................................................................... 15
Electrical and Mechanical Diagram ........................................................................... 15
Final Test Certificate .................................................................................................. 16
References for the Electronic Board ID Codes................................................... 17
Symbols used .................................................................................................... 17
Definitions.......................................................................................................... 18
2. CAUTION STATEMENTS ....................................................................................... 19
2.1.
2.2.
2.3.
2.4.
2.5.
Precautions for Use and Prohibitions ................................................................. 20
Intended Use ..................................................................................................... 20
Qualified Technical Personnel ........................................................................... 20
Specific Dangers Linked to Photovoltaic (PV) Systems ..................................... 21
Execution of Work ............................................................................................. 21
2.5.1.
2.6.
Placing the System in Safety Conditions ................................................................... 22
Personal Protective Equipment .......................................................................... 23
2.6.1.
2.6.2.
2.7.
Hearing Protection ..................................................................................................... 24
Burns .......................................................................................................................... 24
Electric Connections: Safety Procedure ............................................................. 24
3. PRODUCT IDENTIFICATION ................................................................................. 25
3.1.
3.2.
3.3.
3.4.
Checking the Product on Delivery ...................................................................... 25
Product ID Code ................................................................................................ 26
Product Revision Index ...................................................................................... 26
Serial Number.................................................................................................... 26
4. PRODUCT CONFIGURATION ............................................................................... 27
4.1.
4.2.
Controls on the Front of the Cabinet .................................................................. 27
Control Devices ................................................................................................. 28
4.2.1.
4.2.2.
4.2.3.
4.2.4.
4.3.
Display/keypad .................................................................................................. 32
4.3.1.
4.3.2.
4.4.
4.5.
4.6.
4.7.
4.8.
4.9.
4.10.
4.11.
4.12.
2/171
Interface Protection IP ............................................................................................... 29
Grid Connection Contactor ........................................................................................ 31
DC Input Switch ......................................................................................................... 32
AC Output Switch ...................................................................................................... 32
Adjustment of Contrast only....................................................................................... 34
Adjusting the Contrast, Backlighting and Buzzer....................................................... 35
Converter Module .............................................................................................. 36
Isolation Control Device ..................................................................................... 36
Surge Protection ................................................................................................ 38
Serial Ports ........................................................................................................ 40
Environmental Measures ................................................................................... 40
Acquisition of Energy Measurements from External Meters ............................... 41
Power Control .................................................................................................... 41
Programmable Digital Output............................................................................. 41
Ventilation System ............................................................................................. 41
Rev. 04 - 03/07/2013
INSTALLATION GUIDE
4.12.1.
4.12.2.
SUNWAY TG TE
STANDARD
Forced Ventilation Command .................................................................................... 42
External Power Supply for Ventilation ....................................................................... 42
5. HANDLING AND ASSEMBLY ................................................................................ 43
5.1.
Conditions for Transport .................................................................................... 43
5.1.1.
5.1.2.
5.1.3.
5.2.
Hoisting the Equipment .............................................................................................. 44
Crane Fork Hoisting ................................................................................................... 46
Handling Using a Pallet Jack or Forklift Truck ........................................................... 46
Environmental Requirements for Storage and Transport ................................... 47
5.2.1.
5.3.
Base ........................................................................................................................... 47
Assembly of the Inverter on the Installation Site ................................................ 48
5.3.1.
Centre of Gravity and Fork Tine Positioning .............................................................. 48
6. INSTALLATION AND COMMISSIONING ............................................................... 50
6.1.
Wire Connection Terminal Board ....................................................................... 50
6.1.1.
6.1.2.
6.1.3.
6.1.4.
6.1.5.
6.2.
Cable Inlet .................................................................................................................. 50
DC Cable Connection ................................................................................................ 51
AC Cable Connection ................................................................................................ 51
Connecting Earth Cables ........................................................................................... 51
Connecting the Signal and Auxiliary Power Supply Cables ...................................... 51
Connection to the External Transformer ............................................................ 52
6.2.1.
6.2.2.
6.3.
6.4.
6.5.
Transformer Technical Requirements ....................................................................... 52
Transformer Application Requirements ..................................................................... 52
External AC Switch Management ...................................................................... 54
External Emergency Stop Command Management ........................................... 55
Connecting Multiple Inverters in Parallel ............................................................ 56
6.5.1.
6.6.
6.7.
6.8.
Carrier Phase Synchronization .................................................................................. 56
Segregation and Lead-sealing of AC Output...................................................... 58
Connection to the Communications Ports .......................................................... 59
Connection to the Environmental and Field I/O Inputs ....................................... 59
6.8.1.
6.8.2.
6.8.3.
6.8.4.
6.8.5.
6.8.6.
6.8.7.
6.9.
Environmental Sensors Terminal Board .................................................................... 60
Configuration DIP-switches ....................................................................................... 60
Analogue Inputs to Sensors with Voltage Output ...................................................... 63
Analogue Inputs to Sensors with Current Output ...................................................... 64
Analogue Inputs to PT100 Thermistor ....................................................................... 65
External Pulsed Meters for Measuring Energy .......................................................... 66
External Signals for Controlling the Power Delivered ................................................ 67
Auxiliary Circuits Power Supply ......................................................................... 69
6.9.1.
6.9.2.
6.10.
Configuration of the IT/non-IT System ............................................................... 71
6.10.1.
6.10.2.
6.11.
UPS ............................................................................................................................ 69
External Power Supply for Ventilation ....................................................................... 70
SPD Configuration ..................................................................................................... 71
Connection to Metering Voltage Transformer............................................................ 71
Commissioning .................................................................................................. 72
7. COMMUNICATIONS AND REMOTE MONITORING ............................................. 74
7.1.
7.2.
7.3.
General Information ........................................................................................... 74
Communication Ports and Protocol Used .......................................................... 74
Connection Topologies ...................................................................................... 75
7.3.1.
7.3.2.
7.3.3.
7.3.4.
7.3.5.
7.4.
SUNWAY TG TE - Basic Version .............................................................................. 75
SUNWAY TG TE with Optional Data Logger Board .................................................. 76
Interconnection of SUNWAY TG TE with Optional Data Logger Board .................... 77
Point-to-Point Connection .......................................................................................... 78
Multidrop Connection ................................................................................................. 79
Connection ........................................................................................................ 80
7.4.1.
7.4.2.
7.4.3.
7.4.4.
RS485 Bus – Main Principles .................................................................................... 80
COM0 and COM1 Ports ............................................................................................. 81
COM2 Port ................................................................................................................. 85
Ethernet Port .............................................................................................................. 87
8. OPTIONALS ........................................................................................................... 90
8.1.
Data Logger - Optional ...................................................................................... 90
8.2.
Earthed Option – Connection of the PV Field to Earth ....................................... 92
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SUNWAY TG TE
STANDARD
8.2.1.
8.3.
8.4.
8.5.
8.6.
8.7.
INSTALLATION GUIDE
Additional Safety Warnings for the Earthed Option ................................................... 93
GPRS Optional .................................................................................................. 96
Optional Anti-Condensation Heater ................................................................... 96
DC Measurements ............................................................................................. 96
AC Power Meter ................................................................................................ 96
Real-time Efficiency Measurements................................................................... 96
9. DC-PARALLEL ....................................................................................................... 97
9.1.
9.2.
9.3.
General Information on the Product ................................................................... 98
Product ID Code .............................................................................................. 100
Technical Specifications .................................................................................. 100
9.3.1.
9.3.2.
9.3.3.
9.4.
Fuse Installation ....................................................................................................... 101
Input Current Capacity ............................................................................................. 102
Cable Sizing ............................................................................................................. 103
Product Installation .......................................................................................... 105
9.4.1.
9.4.2.
9.4.3.
9.5.
Mechanical Assembly .............................................................................................. 105
Electric Connection .................................................................................................. 105
Wire Fastening ......................................................................................................... 108
Stand-Alone DC-Parallel.................................................................................. 109
9.5.1.
10.
Stand-Alone DC-Parallel Electrical Connection....................................................... 110
MAINTENANCE ..................................................................................... 114
10.1.
10.2.
10.3.
10.4.
10.5.
10.6.
10.7.
10.8.
10.9.
10.10.
10.11.
10.12.
10.13.
10.14.
10.15.
Maintenance Sheet .......................................................................................... 115
Reading the Fault List Archives ....................................................................... 115
Checking the External/Internal Conditions of the Electrical Cabinet ................. 116
Air Filter Maintenance ...................................................................................... 117
Checking the Emergency Stop Button ............................................................. 118
Checking the Door Microswitches .................................................................... 118
Checking the Seals, Locks and Hinges ............................................................ 119
Checking the Fans ........................................................................................... 119
Checking Control and Auxiliary Voltages (110 V and 24 V) ............................. 120
Checking the Relays, Fuses and Disconnect switches .................................... 121
Checking the SPDs ......................................................................................... 122
Calibration of Environmental Sensors .............................................................. 122
Checking the Tightening Torque ...................................................................... 123
Checking the Tightening Torques on the DC-Parallel ...................................... 123
Checking the Fuse Status Switches on the DC-Parallel ................................... 124
11.1.
11.2.
Self-Diagnostics............................................................................................... 125
Malfunctioning at Start-up ................................................................................ 126
11.
TROUBLESHOOTING ........................................................................... 125
11.2.1.
11.2.2.
11.2.3.
11.2.4.
11.2.5.
11.3.
Malfunctioning During Operation...................................................................... 127
11.3.1.
11.3.2.
11.4.
AC Switch Tripped ................................................................................................... 129
DC Disconnection Switch Tripped ........................................................................... 129
SPDS Tripped or Fuses Blown ................................................................................ 129
Blown Earth Fuses for Negative or Positive Earthed Options ................................. 129
Replacing a Fuse in the DC-Parallel ....................................................................... 130
General Principles in the Event of Failure ........................................................ 132
11.6.1.
11.6.2.
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Serial Communication Problems ............................................................................. 128
Ethernet Communication Problems ......................................................................... 128
Safety Devices Tripped.................................................................................... 129
11.5.1.
11.5.2.
11.5.3.
11.5.4.
11.5.5.
11.6.
Isolation Loss Detected ........................................................................................... 127
The Inverter Does Not Produce the Power Expected.............................................. 127
Malfunction of Communication Ports ............................................................... 128
11.4.1.
11.4.2.
11.5.
The Inverter has Stopped by Itself ........................................................................... 126
The Inverter Does Not Start When the START Button is Pressed .......................... 126
The PV OK LED is OFF ........................................................................................... 126
The GRID OK LED is OFF....................................................................................... 126
Isolation Loss Detected ........................................................................................... 127
Fault Containment ................................................................................................... 132
Fault Analysis........................................................................................................... 132
Rev. 04 - 03/07/2013
INSTALLATION GUIDE
11.6.3.
SUNWAY TG TE
STANDARD
DC-Parallel Fault Analysis (if present) ..................................................................... 133
11.7.
How to Contact the CUSTOMER SERVICE .................................................... 134
12.1.
Nameplate ....................................................................................................... 135
12.
TECHNICAL DATA ................................................................................ 135
12.1.1.
12.1.2.
12.2.
12.3.
Installation Specifications ................................................................................ 139
Electrical Specifications ................................................................................... 140
12.3.1.
12.3.2.
12.3.3.
12.3.4.
12.3.5.
12.3.6.
12.4.
12.5.
12.6.
12.7.
12.8.
SUNWAY TG 800V TE ............................................................................................ 141
SUNWAY TG 1000V TE .......................................................................................... 143
Maximum Voltage Derating ..................................................................................... 144
Rated Current Derating ............................................................................................ 144
P-Q Diagram ............................................................................................................ 147
Short-Circuit Current Contribution ........................................................................... 148
Inverter Views .................................................................................................. 149
Installed Converter Module .............................................................................. 150
Inverter Ventilation System .............................................................................. 151
Dimensions and Weights ................................................................................. 152
Connection of Power and Signal Cables .......................................................... 153
12.8.1.
12.8.2.
12.8.3.
12.8.4.
12.9.
12.10.
SUNWAY TG TE...................................................................................................... 135
DC-Parallel............................................................................................................... 138
DC Connection - Input Cables ................................................................................. 153
AC Connection - Output Cables .............................................................................. 154
Connection of Earth Cables ..................................................................................... 155
Connection of Signal and Auxiliary Power Supply Cables ...................................... 156
SPD ................................................................................................................. 156
Technical Room............................................................................................... 157
12.10.1. Air Exchange and Flow Rate ................................................................................... 157
12.11.
12.12.
Control Board .................................................................................................. 158
Environmental Sensors and Field I/Os Expansion Board ................................. 161
12.12.1. List of Signals to Terminal Board ............................................................................. 161
12.12.2. Electrical Specifications ........................................................................................... 164
12.13.
DC-Parallel ...................................................................................................... 167
12.13.1. DC-Parallel Electrical Specifications ....................................................................... 167
12.13.2. Fuses ....................................................................................................................... 168
12.13.3. Clearance Values for Stand-Alone DC-Parallel ....................................................... 169
13.
14.
DECLARATION OF CONFORMITY....................................................... 170
ANNEXES .............................................................................................. 171
14.1.
Index of revisions ............................................................................................. 171
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SUNWAY TG TE
STANDARD
INSTALLATION GUIDE
Index of Figures
Figure 1: SUNWAY TG TE STANDARD line .............................................................................................. 10
Figure 2: Single-wire diagram of a SUNWAY TG TE inverter ..................................................................... 11
Figure 3: Block diagram ............................................................................................................................... 12
Figure 4: System safety warning sign.......................................................................................................... 22
Figure 5: Packaging of SUNWAY TG TE .................................................................................................... 25
Figure 6: Controls on the front of the SUNWAY TG TE cabinet ................................................................. 27
Figure 7: Interface Protection diagram ........................................................................................................ 29
Figure 8: External Interface Protection (IP) relay connection ...................................................................... 29
Figure 9: RUN LED on the display/keypad .................................................................................................. 31
Figure 10: Display/keypad ........................................................................................................................... 32
Figure 11: Single-line diagram of a SUNWAY TG TE - dotted line highlighting the converter module ....... 36
Figure 12: Isolation Control Board ES942 ................................................................................................... 37
Figure 13: SPD (Surge Protective Device) .................................................................................................. 39
Figure 14: Contact for forced cabinet ventilation command ........................................................................ 42
Figure 15: Inverter tilting .............................................................................................................................. 43
Figure 16: Hoisting the Inverter ................................................................................................................... 44
Figure 17: Hoisting the Inverter Figure 18: INCORRECT Hoisting .......................................................... 45
Figure 19: Hoisting the Inverter Figure 20: INCORRECT Hoisting .......................................................... 45
Figure 21: Hoisting the inverter with a crane fork ........................................................................................ 46
Figure 22: Lifting the equipment from underneath ...................................................................................... 46
Figure 23: Base with removable plate ......................................................................................................... 47
Figure 24: Base with the plate removed ...................................................................................................... 47
Figure 25: Internal view of the SUNWAY TG TE inverter cabinet ............................................................... 50
Figure 26: Connection to an interface relay downstream from the LV/LV transformer ............................... 53
Figure 27: External AC switch connection contacts .................................................................................... 54
Figure 28: External AC switch contacts timing diagram .............................................................................. 54
Figure 29: External emergency stop command contact .............................................................................. 55
Figure 30: Wiring for phase synchronization – 2 SUNWAY TG TE inverters.............................................. 57
Figure 31: Wiring for phase synchronization – 3 or more SUNWAY TG TE inverters ................................ 57
Figure 32: Lead-sealable cage for the AC output section ........................................................................... 58
Figure 33: Lead-sealable nut cover ............................................................................................................. 58
Figure 34: Environmental sensors and filed I/Os Expansion Board ............................................................ 59
Figure 35: Diagram of environmental sensors terminal board .................................................................... 60
Figure 36: Connection to 0 – 10 V analogue input ...................................................................................... 63
Figure 37: Connection to 0 – 100 mV analogue input ................................................................................. 63
Figure 38: Connection of 0 – 20 mA (4 – 20 mA) sensors to current inputs ............................................... 64
Figure 39: Connection of the PT100 thermistor to the analogue channel ................................................... 65
Figure 40: Connection of the external signals for pulsed meter energy measurements ............................. 66
Figure 41: Connection of the external signals for controlling the power delivered ...................................... 67
Figure 42: External signals for controlling the power delivered via four contacts ....................................... 68
Figure 43: Terminals available for connection to a UPS ............................................................................. 69
Figure 44: External Power Supply for Ventilation ........................................................................................ 70
Figure 45: Configuration diagram of SUNWAY TG TE without optional Data Logger board ...................... 75
Figure 46: Configuration diagram of SUNWAY TG TE with optional Data Logger board ........................... 76
Figure 47: Configuration diagram of SUNWAY TG TE with multiple Data Logger boards ......................... 77
Figure 48: Multidrop connection diagram .................................................................................................... 79
Figure 49: COM0 and COM1 – Location of the SW1 termination DIP-switches ......................................... 82
Figure 50: SW1 termination DIP-switches ................................................................................................... 82
Figure 51: Position of LEDs and DIP-switches ............................................................................................ 84
Figure 52: COM2 – Location of the SW2 termination DIP-switches ........................................................... 86
Figure 53: SW2 termination DIP-switches ................................................................................................... 87
Figure 54: Layout of pairs in cat. 5 UTP cable ............................................................................................ 88
Figure 55: EIA/TIA 568 standard patch cable, UTP/STP cat.5 ................................................................... 88
Figure 56: EIA/TIA 568 cross-over cable, UTP/STP cat.5 .......................................................................... 88
Figure 57: Data Logger board - Optional ..................................................................................................... 90
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INSTALLATION GUIDE
SUNWAY TG TE
STANDARD
Figure 58: Location of the optional Data Logger board ............................................................................... 91
Figure 59: Positive Earthed option – connection of the positive pole to earth ............................................ 92
Figure 60: Negative option – connection of the negative pole to earth ....................................................... 92
Figure 61: Direct contact with live pole ........................................................................................................ 94
Figure 62: Direct contact with voltage-free pole .......................................................................................... 94
Figure 63: Dead short to earth and polarization fuse blowing .................................................................... 95
Figure 64: Direct contact with pole which is no longer voltage-free ............................................................ 95
Figure 65: DC-Parallel ................................................................................................................................. 97
Figure 66: General electrical diagram of the PV field with two levels of parallel connections .................... 98
Figure 67: DC-Parallel with 10 inputs .......................................................................................................... 99
Figure 68: Example of fuse configuration provided in the Final Test Certificate ....................................... 101
Figure 69: Single and paralleled inputs ..................................................................................................... 101
Figure 70: Short circuit located upstream from the DC-Parallel ................................................................ 103
Figure 71: Composition of a SUNWAY TG TE inverter with a DC-Parallel ............................................... 106
Figure 72: Connection of cables coming from the String Boxes: front view .............................................. 107
Figure 73: Connection of cables coming from the String Boxes: side view .............................................. 107
Figure 74: DC-Parallel: side and front view ............................................................................................... 108
Figure 75: Positioning of the Stand-Alone DC-Parallel on the same wall as the SUNWAY TG TE inverter
................................................................................................................................................................... 109
Figure 76: Positioning of the Stand-Alone DC-Parallel on a different wall to the SUNWAY TG TE inverter
................................................................................................................................................................... 109
Figure 77: Stand-Alone DC-Parallel: Connection of positive pole power cable ........................................ 110
Figure 78: Stand-Alone DC-Parallel: Connection of negative pole power cable ....................................... 111
Figure 79: Electric connection of the Stand-Alone DC-Parallel on the same wall as the SUNWAY TG TE
................................................................................................................................................................... 112
Figure 80: Electric connection of the Stand-Alone DC-Parallel on a different wall to the SUNWAY TG TE
................................................................................................................................................................... 113
Figure 81: Filter replacement..................................................................................................................... 117
Figure 82: Checking the 24 Vdc control power supply .............................................................................. 120
Figure 83: Checking the 110 Vac control power supply ............................................................................ 121
Figure 84: Surge Protective Device ........................................................................................................... 122
Figure 85: Testing of DC-Parallel fuse status switch................................................................................. 124
Figure 86: Extracting the fuse: disconnection of microswitch and handle for removing the fuse ............. 130
Figure 87: Extracting the fuse: using the insulated handle for removing the fuse .................................... 131
Figure 88: Extracting the fuse: using the insulated handle for removing the fuse .................................... 131
Figure 89: SUNWAY TG TE nameplate .................................................................................................... 135
Figure 90: Inverter revision index .............................................................................................................. 136
Figure 91: Examples of SUNWAY TG TE nameplates ............................................................................. 137
Figure 92: DC-Parallel Nameplate............................................................................................................. 138
Figure 93: Temperature derating (at sea level) ......................................................................................... 144
Figure 94: Coefficient Kt for temperature derating (at sea level) .............................................................. 145
Figure 95: Coefficient Ka for altitude derating ........................................................................................... 145
Figure 96: Short circuit localization in the SUNWAY TG TE inverters ...................................................... 148
Figure 97: Maximum short-circuit time-current mask ............................................................................... 148
Figure 98: NH1 fuse and blade.................................................................................................................. 168
Figure 99: Fuse-holder for NH1 fuse and blade ........................................................................................ 168
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SUNWAY TG TE
STANDARD
INSTALLATION GUIDE
Index of Tables
Table 1: Documentation supplied with the product ..................................................................................... 14
Table 2: Documentation supplied with the DC-Parallel (if present) ............................................................. 14
Table 3: Function of the display/keypad LEDs ............................................................................................ 34
Table 4: Display/keypad parameter setup ................................................................................................... 35
Table 5: Rotary switch position .................................................................................................................... 38
Table 6: Factory settings of environmental inputs ....................................................................................... 40
Table 7: Environmental requirements for storage and transport ................................................................. 47
Table 8: Centre of gravity and fork tine position for two-door model W = 1400 .......................................... 48
Table 9: Centre of gravity and fork tine position for three-door model W = 1800 ....................................... 49
Table 10: Centre of gravity and fork tine position for four-door model W = 2600 ....................................... 49
Table 11: Wire Connection Terminal Board ................................................................................................ 50
Table 12: Transformer technical requirements ............................................................................................ 52
Table 13: Connections for PMW synchronization ....................................................................................... 56
Table 14: List of environmental sensors terminals ...................................................................................... 60
Table 15: Function of the 3 DIP-switches on the environmental sensors and field I/Os expansion board . 60
Table 16: Environmental analogue channel 1 DIP-switch configuration ..................................................... 61
Table 17: Environmental analogue channel 2 DIP-switch configuration ..................................................... 61
Table 18: Environmental analogue channel 3 DIP-switch configuration ..................................................... 61
Table 19: Environmental analogue channel 4 DIP-switch configuration ..................................................... 61
Table 20: Environmental sensors and field I/Os expansion board DIP-switch configuration ...................... 62
Table 21: Digital inputs for external meters ................................................................................................. 66
Table 22: Digital inputs for controlling the power delivered ......................................................................... 67
Table 23: Communication ports................................................................................................................... 74
Table 24: Connection cable ......................................................................................................................... 80
Table 25: COM0 and COM1 serial port connection .................................................................................... 81
Table 26: COM0 and COM1 – SW1 termination DIP-switch ....................................................................... 81
Table 27: Voltage indicator LEDs ................................................................................................................ 83
Table 28: FAULT indicator LEDs ................................................................................................................. 83
Table 29: COM2 serial port connection ....................................................................................................... 85
Table 30: DB9 connector ............................................................................................................................. 85
Table 31: SW2 termination DIP-switches .................................................................................................... 86
Table 32: Ethernet port connection ............................................................................................................. 87
Table 33: RJ45 connector ........................................................................................................................... 87
Table 34: Trip time of fuses NH1-XL ......................................................................................................... 104
Table 35: Connection of signal cables ...................................................................................................... 112
Table 36: Maintenance Sheet.................................................................................................................... 115
Table 37: DC- Parallel Maintenance Sheet ............................................................................................... 115
Table 38: Tightening torques for DC-Parallel contacts.............................................................................. 123
Table 39: RS485 galvanic isolation board self-diagnosis LEDs ................................................................ 128
Table 40: Installation specifications for SUNWAY TG TE ......................................................................... 139
Table 41: SUNWAY TG TE noise emissions ............................................................................................ 139
Table 42: SUNWAY TG TE electrical specifications ................................................................................. 140
Table 43: Technical data for SUNWAY TG 800V TE models – 270 ......................................................... 141
Table 44: Technical data for SUNWAY TG 800V TE models - 310 .......................................................... 142
Table 45: Technical data for SUNWAY TG 1000V TE models ................................................................. 143
Table 46: Maximum DC voltage based on altitude.................................................................................... 144
Table 47: Calculation of the rated current reduction coefficient ................................................................ 145
Table 48: Inverter views ............................................................................................................................ 149
Table 49: Converter Module ...................................................................................................................... 150
Table 50: SUNWAY TG TE ventilation technical data............................................................................... 151
Table 51: Classification of the felt filter installed in the air intake grilles ................................................... 151
Table 52: SUNWAY TG TE dimensions and weights................................................................................ 152
Table 53: Handling methods...................................................................................................................... 152
Table 54: Technical data for DC input cables ........................................................................................... 153
Table 55: Technical data for AC output cables ......................................................................................... 154
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STANDARD
Table 56: Technical data for earth cables ................................................................................................. 155
Table 57: Technical data for signal cables ................................................................................................ 156
Table 58: SPD technical specifications ..................................................................................................... 156
Table 59: Clearance values for SUNWAY TG TE ..................................................................................... 157
Table 60: Terminals 1 - 13 available on the control board ........................................................................ 159
Table 61: Terminals 14 - 34 available on the control board ...................................................................... 160
Table 62: Terminals available on the environmental sensors and field I/O board .................................... 163
Table 63: Analogue inputs configured in 0 - 10 V mode ........................................................................... 164
Table 64: Analogue inputs configured in 0 - 20 mA mode ........................................................................ 164
Table 65: Analogue inputs configured in 0 - 100 mV mode ...................................................................... 165
Table 66: Analogue inputs configured as temperature measurement with PT100 ................................... 165
Table 67: Specifications of the analogue power supply outputs ............................................................... 166
Table 68: Specifications of the digital power supply outputs ..................................................................... 166
Table 69: DC-Parallel Electrical Specifications ......................................................................................... 167
Table 70: Clearance Values for Stand-Alone DC-Parallel ........................................................................ 169
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1. GENERAL INFORMATION ON THE PRODUCT
Figure 1: SUNWAY TG TE STANDARD line
The SUNWAY TG TE STANDARDline comprises medium-power and large-power three-phase solar
inverters for the connection to the LV and MV grid.
The line includes the following versions:
•
800V version, suitable for field voltage ratings up to max. 880 Vdc.
•
1000V version, suitable for field voltage ratings up to max. 1000 Vdc.
The SUNWAY TG TE inverters are designed for optimum conversion efficiency and reliability. They are
fully protected against short-circuits and surge and are compliant with the strictest Italian and European
directives regulating the safety and energy feed-in systems.
All the SUNWAY TG TE inverters are fully compatible with Tracker applications.
The modular design of Elettronica Santerno’s inverters and the wide range of available products suit the
most demanding applications quickly and successfully.
The very accurate design and the quality control ensured by the ISO 9001 certification are the assets of
our extremely reliable products, whose features ensure maximum durability.
Elettronica Santerno’s inverters meet all safety requirements and are designed to operate in the most
demanding environmental conditions.
Thanks to these features, the SUNWAY TG TE inverters represent the state-of-the-art solution for the
production of energy from PV field.
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NOTE
Elettronica Santerno reserves the right to make any technical changes to the cabinet models
shown in the pictures without any prior notice. The same applies to the appearance of the
cabinets.
1.1.
Operating Principles
Figure 2: Single-wire diagram of a SUNWAY TG TE inverter
The SUNWAY TG TE inverters include the following functional blocks:
DC input unit
The DC input unit allows connecting the inverter to the photovoltaic generator. It is provided with on-load
switch, input EMI filters and SPDs. It checks the ground isolation of the PV generator.
Static converter
The Static Converter comprises the forced switching IGBT stack and the control board. The Static
Converter implements the most advanced features of the inverter, such as the control logics, the current
and voltage measures, the interface protections integrated into the control software, the autodiagnostics
functions and the serial communications.
AC output unit
This AC Output Unit comprises control devices, such as Contactor for the connection to the grid that can
operate as an Interface Device (please refer to section 4.2), the sinusoidal filters and the output EMI
filters.
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The inverter is provided with an interface device operating on minimum and maximum voltage / frequency
thresholds in compliance with the standards in force (see “SUNWAY TG TE CERTIFICATION AND GRID
INTERFACE FILE”).
Figure 3: Block diagram
Once the SUNWAY TG TE is connected to the photovoltaic generator and is properly started, the control
system synchronises with the grid and closes the parallel contactor when the PV field voltage exceeds the
starting voltage value.
The inverter will then operate as a generator of sinusoidal current with a power factor that is typically equal
to 1.
The integrated MPPT (Maximum Power Point Tracker) algorithm constantly keeps the working point of the
PV field at the maximum power delivered.
The grid frequency and the grid voltage values are constantly checked during normal operation. This
allows detecting undesired islanding operation. Islanding detection can be performed by an external relay
according to the regulations in force (see section 4.2.1).
The plant data can be read from the LCD display/keypad placed on the front wall. The plant data includes
the active energy and the reactive energy, the operation time and the temperature of the internal
components. The keypad allows accessing all the inverter measures and programming parameters.
The inverter is provided with standard RS485 comms ports for the connection to the remote monitoring
system, both in local mode and in remote mode (see section 4.7).
The Data Logger board is available as an option board. It is a telecommunications unit between the
inverter and the connected String Box. It stores local production data and allows connecting to the
Santerno Remote Monitoring (see section 8.1).
Several diagnostic functions are integrated in the inverter logic, such as the constant check of the
program memory integrity, the PV field isolation monitoring, the detection of the temperature of the internal
components, the detection of the input / output overcurrent, the detection of the DC-Parallel input fuses (if
a DC-Parallel cabinet is installed).
Whenever necessary, the DC input section can be completed with a DC-Parallel cabinet (please refer to
section 9).
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1.2.
SUNWAY TG TE
STANDARD
Main Integrated Standard Functions
The main standard functions implemented by the SUNWAY TG TE are detailed below.
•
Max. 6 environmental inputs monitoring solar radiation sensors, temperature sensors and wind
sensors.
•
Constant check for PV isolation.
•
Protection against short-circuits; overvoltage and undervoltage protection for maximum reliability.
•
Protection against overvoltage in the PV field input.
•
Protection against PV polarity mismatch.
•
Interface protection integrated into the inverter software.
•
Digital input for external grid supervisor.
•
Phase synchronization of carrier frequency for multi-inverter plants.
•
External power supply for the ventilation system to maximize the energy delivered to the grid.
•
Full integration with the remote monitoring system offered from Santerno for performance detection
and trip logs.
•
Full accessibility to the remote control service, both in local mode and remote mode, via laptop and
via SunwayPortal.
•
Full integration with Sunway Station.
1.3.
Optional Functions
The main optional functions available for SUNWAY TG TE inverters are listed below:
•
Data Logger Board
•
GPRS Router
•
Field connection with earth pole (Positive Earthed or Negative Earthed)
•
Anti-condensation heater
•
Power Meter
•
Efficiency Meter
The PV field input parallel compartment with safety fuses on both DC-Parallel poles is also available.
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1.4.
INSTALLATION GUIDE
Scope of this Manual
This manual covers:
•
All inverters belonging to the SUNWAY TG TE STANDARD series.
•
The DC-Parallel cabinet PV field input parallel compartment with safety fuses.
1.5.
For Whom this Manual is Intended
This manual must be read by:
•
Installers
•
Operators
•
Plant manager
Please refer to section 1.9.
1.6.
Attached Documentation
The SUNWAY TG TE is supplied complete with the following documents:
Name of the document
Scope
Installation Guide
Contains all the information necessary for the transport, assembly,
installation and maintenance of the product.
Programming Guide
Contains all the information on inverter operation and for accessing
measurements and programming parameters.
Electrical and Mechanical
Diagram
Contains detailed information on the internal layout and electrical
diagram of the product.
Final Test Certificate
Contains all the information concerning the execution and outcome
of Production Tests.
Certification and Grid Interface
File
Contains the Declaration of Conformity to standards which are
applicable to the product and information on the network interface
parameters.
Table 1: Documentation supplied with the product
Name of the document
Scope
DC-Parallel Electrical and
Mechanical Diagram
Contains detailed information on the internal layout and electrical
diagram of the product.
DC- Parallel Final Test Certificate
It contains all the information concerning the execution and outcome
of Production Tests. It also contains the configuration of the fuses
installed.
DC-Parallel Declaration of
Conformity
Contains the Declaration of Conformity to standards applicable to the
product.
Table 2: Documentation supplied with the DC-Parallel (if present)
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1.6.1. Preservation of the Documentation
All documents must be kept for the entire life span of the equipment together with the system
documentation. They must be kept in a place where they are readily available.
1.6.2. Electrical and Mechanical Diagram
To facilitate understanding of the Electrical and Mechanical Diagram and help the user to identify the
various parts illustrated therein, here is a description of how it has been drawn up.
The first page of the Electrical and Mechanical Diagram contains the technical features and configuration
of the inverter, as illustrated below:
A
Type of inverter and code
B
Inverter technical data and configuration
The pages of the electrical diagram are distinguished by three different numbers in the bottom right-hand
corner:
"Field” indicates the location of the components:
+Q1
= Inside the electrical cabinet
+Q1F
= On the front of the electrical cabinet
+EXT
= External device
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"Sheet" indicates the progressive number of each sheet in the electrical diagram
"Continued" indicates the number of the following sheet
The ID code for each component and conductor relates to the first page in which the component or
conductor appears, usually based on the direction of energy flow, followed by a progressive number.
Cross-references are provided in the electrical diagram for conductors and components which appear on
more than one page. The cross-reference format is: Sheet. Column.
1.6.3. Final Test Certificate
The Final Test Certificate is drawn up by Elettronica Santerno technicians at the time of testing the
SUNWAY TG TE inverter. It contains all the information concerning the execution and outcome of
Production Tests.
DC-PARALLEL
The Final Test Certificate for the DC-Parallel (if present), shows the exact configuration of the installed
fuses for each channel.
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1.7.
SUNWAY TG TE
STANDARD
References for the Electronic Board ID Codes
The table below indicates the electronic board ID codes used in the Electrical and Mechanical Diagram.
ID code
Description
ES768
ISOLATION CONTROL BOARD
ES821
CONTROL BOARD
ES822
RS485 GALVANIC ISOLATION BOARD
ES847
ENVIRONMENTAL SENSORS AND FIELD I/Os EXPANSION BOARD
ES851
DATA LOGGER BOARD
ES914
AUXILIARY POWER SUPPLY AND RS485 GALVANIC ISOLATION BOARD
ES942
EARTH LEAKAGE DETECTOR BOARD
1.8.
Symbols used
KEY:
DANGER
Indicates an operating procedure which, if not carried out correctly, may lead to injuries
or even death caused by electric shock.
WARNING
Indicates an operating procedure which, if not carried out correctly, may cause serious
damage to equipment.
NOTE
Indicates important information concerning use of the equipment.
PROHIBITION
Strictly forbids the execution of operating procedures.
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1.9.
INSTALLATION GUIDE
Definitions
Installer
Technician responsible for setting up, positioning and installing the equipment in compliance with the
system diagram and in accordance with first-class, professional criteria.
Operator
Worker who has been suitably trained and informed on the risks and relative safety procedures to be
adopted. The operator can carry out routine maintenance on the equipment.
Plant manager
Person who co-ordinates or manages system management activities and is responsible for ensuring
health and safety standards are adhered to.
Technical room
Place used for housing the technological systems such as the wiring, plumbing, heating, air-conditioning,
lifting and telecommunications systems.
It is equipped with suitable forced-air ventilation and/or air conditioning and is also fitted with appropriate
safety devices governing access, maintenance and fire-prevention.
Person in charge of running the electrical system (System Manager)
Person with the highest level of responsibility concerning operation of the electrical system. If required
some of his/her tasks may be delegated to others.
Person in charge of working activities (Works Supervisor)
Person with the highest level of responsibility concerning the execution of work. If required some of his/her
tasks may be delegated to others.
The Works Supervisor must give all persons involved in the execution of work activities the relative
instructions concerning reasonably foreseeable dangers which may not be immediately apparent.
Skilled electrician
Someone who has been trained and has enough technical knowledge or experience to enable him/her to
avoid the dangers which may be generated by electricity.
Instructed person
Someone who has been adequately advised or supervised by a skilled person to enable him/her to avoid
the dangers which may be generated by electricity.
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2. CAUTION STATEMENTS
This section covers safety statements. The non-observance of the safety instructions below may cause
serious injury or death and equipment failure. Carefully read the instructions below before installing,
starting and operating the equipment.
Only competent personnel must carry out the equipment installation.
SAFETY RECOMMENDATIONS TO FOLLOW DURING USE AND INSTALLATION OF THE
EQUIPMENT:
NOTE
Always read this instruction manual thoroughly before starting the equipment.
DANGER
ALWAYS EARTH THE EQUIPMENT.
OBSERVE THE PRESCRIPTIONS CONCERNING CONDUCTOR SECTION INDICATED IN
6.1.4.
WARNING
Do not connect supply voltages which exceed the rated voltage. If voltage exceeding the
rated value is applied, the internal circuits may be damaged.
In the event of an alarm, please consult section 11 TROUBLESHOOTING. Only restart
the equipment once the problem has been rectified.
Do not carry out isolation tests between the power terminals or between the control
terminals.
Make sure that the screws on the connection terminal board have been tightened
correctly.
Observe the ambient conditions for installation.
The electronic boards contain components which are sensitive to electrostatic charges.
Do not touch the boards unless absolutely necessary. Should this be the case, take all
the necessary precautions to prevent damages caused by electrostatic charges.
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2.1.
INSTALLATION GUIDE
Precautions for Use and Prohibitions
DANGER
RISK OF ELECTRIC SHOCK
NEVER carry out operations on the equipment when it is powered.
EXPLOSION AND FIRE RISKS
The risk of explosion or fire may exist if the equipment is installed in a room containing
flammable vapours. Do not install the equipment where there is a risk of explosion or
fire.
PROHIBITION
The product described in this manual has not been designed to operate in potentially
explosive atmospheres. Consequently, installation in such an environment is strictly
prohibited.
PROHIBITION
It is forbidden to make any technical or mechanical modifications to the cabinet even
when out of warranty.
Elettronica Santerno is not responsible for any risks that may arise due to unauthorised
alterations, modifications or tampering.
2.2.
Intended Use
SUNWAY TG TE inverters are digitally controlled appliances which convert electrical energy from a DC
power source produced by photovoltaic (PV) panels into an AC current which is then delivered to the grid.
SUNWAY TG TE inverters may only be used as described in this manual. The DC power supply must
come from the PV field only. The AC output must be parallel-connected to the grid only.
Any use other than that described in this manual is to be considered inappropriate and therefore improper.
2.3.
Qualified Technical Personnel
All work on SUNWAY TG TE products must be carried out by skilled technical personnel only. By skilled
personnel it is intended persons who have been suitably trained to carry out the work in question.
To commission and use the SUNWAY TG TE, personnel must know and understand the instructions for
installation and use. In particular all safety warnings must be strictly observed.
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2.4.
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STANDARD
Specific Dangers Linked to Photovoltaic (PV) Systems
PV systems have certain characteristics which are the source of additional hazards and are described
below:
•
A live current source is connected. Depending on the operating conditions, there may be live
voltage from the PV generator or from the electrical grid. This must be taken into consideration,
particularly when disconnecting parts from the system.
•
Very high DC voltages are involved (with no periodic zero crossings) hence failure or the incorrect
use of fuses or plugs may cause electric arcs.
•
The short-circuit current of the PV generator is only slightly higher than the maximum operating
current and furthermore is linked to radiation. This means that fuses may not always blow in the
event of a short-circuit.
•
The PV generator grid is usually an IT type, i.e. it is only earthed in the event of a fault or energy
leakage. For connection to PV fields with earthing pole, connection is of the TN type, but the earth
connection is protected by a fuse which may trip in the event of a single fault.
•
In the event of a fault (for example a short-circuit), cutting off a generator with a high number of
branches may prove to be somewhat difficult. Take great care to ensure each sub-field disconnect
switch has been opened before going near the devices installed in the technical room.
2.5.
Execution of Work
Maintenance, configuration modifications and management operations require the involvement of all
production and maintenance personnel. These activities must be carried out in observance of health
and safety regulations.
The Standards and Laws governing this aspect vary depending on the personnel involved, methods of
access and/or the tasks which may be carried out on the product and envisage constructive measures
aimed at guaranteeing adequate levels of safety.
Standard EN 50110-1, second edition, identifies the people who are granted access to the product:
•
Person in charge of running the electrical system (System Manager).
•
Person in charge of work activities (Works Supervisor).
•
Skilled electrician.
•
Instructed person.
Please refer to section 1.9.
Standard EN50110-1 governs the way work in a plant is carried out and the relationship between the
aforementioned persons who may work on the plant to maintain the electrical safety conditions stipulated
by European Directives.
This standard and its national equivalents must therefore be adhered to whenever it is necessary to
access a PV system.
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2.5.1. Placing the System in Safety Conditions
Affix the following warning sign next to all the PV field disconnect switches.
Figure 4: System safety warning sign
WARNING
Always operate in accordance with the indications provided in section 2.5.1.
WARNING
Before carrying out any operations inside the electrical cabinet make sure it is in safety
conditions by turning it off and opening the DC side and AC side switches.
DANGER
After turning off the inverter wait at least 10 minutes before opening the cabinet doors
to give the DC-link capacitors time to discharge.
NOTE
In the event of any fault, please contact the Elettronica Santerno SpA CUSTOMER SERVICE
for instructions on the necessary corrective action to be taken.
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2.6.
SUNWAY TG TE
STANDARD
Personal Protective Equipment
Maintenance technicians must be provided with the following personal protective equipment as envisaged
by European Directives and relative implementation of the same on national territory.
SYMBOL
DESCRIPTION
Safety glasses/face shield
Throughout operations.
1000 V high-voltage insulated gloves
Throughout operations.
Dielectric helmet
Throughout operations.
Safety footwear/dielectric boots
Throughout operations.
Insulated tools
Throughout operations.
Operators must also be provided with a suitable means of communication for
contacting the emergency services if necessary.
NOTE
It is always advisable to work on the electrical cabinets with THE POWER SUPPLY
SWITCHED OFF and the equipment in safety conditions (please refer to section 2.7).
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2.6.1. Hearing Protection
The inverter and technical room cooling fans may generate considerable noise levels.
It is therefore necessary to observe all the necessary precautions aimed at protecting hearing. It is
advisable to wear hearing protection when working continuously in the vicinity of the inverters.
2.6.2. Burns
Some components may reach very high temperatures and still be very hot even after the equipment has
been switched off.
Consequently all the necessary precautions aimed at preventing the risk of burns must be taken. Always
wear protective gloves.
2.7.
Electric Connections: Safety Procedure
Before carrying out any kind of operation inside the inverter, always place the equipment in safety
conditions. To do this follow the instructions provided below:
•
Make sure that the inverter is NOT running.
•
Press the emergency stop button on the front door.
•
Disconnect the cabinet’s auxiliary power supply.
•
Wait at least 10 minutes before opening the doors.
•
Turn off any disconnector switches up- and downstream from the inverter.
DANGER
Turning off the switches on the PV field side and the grid side inhibits operation of the
SUNWAY TG TE but hazardous stored residual energy may persist on the AC grid and
PV field connection terminals, terminal boards X1 and X2 (please refer to the Electrical
and Mechanical Diagram).
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3. PRODUCT IDENTIFICATION
3.1.
Checking the Product on Delivery
On receiving delivery of the equipment make sure that the packaging shows no signs of damage. Check
that it complies with your order by referring to the nameplates described below. In the event of any
damage, please contact the relative insurance company or the supplier. If the delivery does not match
your order, contact the supplier immediately.
Figure 5: Packaging of SUNWAY TG TE
NOTE
The labels indicating the codes and product description and any optionals selected, may differ
in colour to the ones shown in the figure.
If the equipment is to be stored before installation, make sure that the ambient conditions in the
warehouse meet the necessary specifications (please refer to section 5.2). The warranty covers
manufacturing defects. The manufacturer shall not be held liable for any damage which may have
occurred during transport and unpacking. Under no circumstances shall the manufacturer be held liable
for damage or faults caused by incorrect use, misuse, incorrect installation or inadequate temperature or
humidity conditions or exposure to corrosives nor for faults caused by operation outside the rated values.
Nor shall the manufacturer be held liable for consequential or accidental damage.
NOTE
For the terms of warranty please refer to the warranty certificate supplied with the product.
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3.2.
INSTALLATION GUIDE
Product ID Code
The product code identifies the inverter and is indicated on the relative nameplate. The nameplate also
holds all the necessary technical data (please refer to section 12.1).
The product code is made up of the following elements:
SUNWAY TG XXX
XXX
YY
ZZZ
TE- VVV
Model
See the Solar Energy catalogue
YY (optional) Country of Destination
If absent: Italy
ES: Spain
DE: Germany
FR: France
GR: Greece
KR: Korea
CN: China
ZZZ Maximum Vdc Field Voltage
800V: Field Voltage Max. Voc 880 Vdc
1000V: Field Voltage Max. Voc 1000 Vdc
VVV AC rated voltage
If absent, see Technical Data
310: 310 Vac
320: 320 Vac
340: 340 Vac
360: 360 Vac
380: 380 Vac
Examples:
SUNWAY TG 730 800V TE - 270
Max 880 Vdc, 340 Vac rated AC voltage
SUNWAY TG 750 1000V TE - 340
Max 1000 Vdc, 340 Vac rated AC voltage
3.3.
Product Revision Index
The product revision index is indicated on the nameplate Please refer to section 12.1.
3.4.
Serial Number
The inverter’s serial number is indicated on the nameplate. Please refer to section 12.1.
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4. PRODUCT CONFIGURATION
4.1.
Controls on the Front of the Cabinet
Figure 6: Controls on the front of the SUNWAY TG TE cabinet
The following controls and devices are located on the front door of the inverter cabinet (the relative ID
codes used in the Electrical and Mechanical Diagram are provided in the brackets):
Key-operated selector switch: Enable/Disable Inverter (12SA1)
This key-operated selector switch enables/disables operation of the SUNWAY TG TE.
Key-operated selector switch: door switch Enabling/Disabling (18SA2)
This key-operated selector switch enables/disables the door closure safety microswitches. If the safety
microswitches are activated, door opening will open the switches on the PV field side and grid side.
Display/keypad (12A4)
Using the display/keypad the operator can:
•
Inverter START, STOP and alarm RESET (start, stop, reset of the alarms tripped).
•
Set machine parameters (please refer to the Programming Guide).
•
See measurements and any indications concerning the operating status of the inverter (please refer
to the Programming Guide).
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Emergency Stop Button (18SB2)
The emergency stop button opens the switches on the PV field side and the grid side immediately, thus
inhibiting operation of the SUNWAY TG TE in parallel with the grid.
The safety circuits and the release coils function at 24 V. SUNWAY TG TE inverters are equipped with
two 24 V power supply units which operate in parallel. The first power supply unit is connected to the PV
power supply source while the other is connected to the grid. In this way the inverter safety circuits are
always powered by one inverter power source or the other.
The emergency function can have a remote operation facility by means of a contact available on the
inverter. Please refer to section 6.4.
Electric grid AC switch control lever (16QM2)
The control lever for the grid side switch, located inside the cabinet, makes it possible to connect the
SUNWAY TG TE to the grid.
4.2.
Control Devices
The following control devices are located inside the inverter (the relevant ID codes used in the Electrical
and Mechanical Diagram are provided in brackets):
PV Generator DC Switch (10QM1)
The DC switch (PV field side), located inside the cabinet, makes it possible to connect the inverter to the
PV field.
Grid AC Switch (16QM2)
The AC switch (PV field side) located inside the cabinet, makes it possible to connect the SUNWAY TG
TE to the grid.
Grid Connection Contactor (18KM1)
The grid connection contactor is closed and/or opened by the control board and is normally interlocked
with the Interface Protection (DI). Please refer to sections 4.2.1 and 4.2.2.
DANGER
The SUNWAY TG TE is powered by two completely separate voltage generators: the grid
and the PV field. Make sure that both generators are disconnected before carrying out
any kind of work inside the inverter.
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4.2.1. Interface Protection IP
The Interface Protection (IP) relay is a component which performs the function of grid supervisor.
The grid interface represents one of the inverter's main safety functions.
All the electric grid values are measured and compared with an acceptance template. If the measured
values exceed the set thresholds, the inverter stops by opening the parallel contact.
The basic safety functions of the grid interface include the over/under frequency and the under/over
voltage thresholds.
Figure 7: Interface Protection diagram
The tripping values and times depend on the connection regulations in force in different countries. Other
measurements, both direct and derivative, may be considered for Interface Protection, depending on the
connection regulations in force in the country of installation.
The Interface Protection function may be performed by an external device or via the control software. The
two functions may also coexist and operate in parallel.
For all SUNWAY TG TE inverters an Interface Protection function is incorporated in the control software
which acts on the Grid Connection Contactor. All the parameters relative to the tripping thresholds and
times are set in the factory depending on the designated geographical location of installation.
It is also possible to connect an external Interface Protection to SUNWAY TG TE inverters whenever this
is prescribed by the regulations in force (e.g. CEI 0-16 for Italy). See terminal X3, contacts 13 and 14 in
the Electrical and Mechanical Diagram.
Figure 8: External Interface Protection (IP) relay connection
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For connection of an external Interface Protection, the protection acts with redundancy on inverter control:
•
The control software acquires the status of external Interface Protection in real time. In the event of
tripping the inverter stops and the Grid Connection Contactor is opened.
•
The external Interface Protection contacts are wired in such a way as to open the Grid Connection
Contactor.
The sudden tripping of the Interface Device may cause transients on the AC output line. This phenomenon
may occur to a higher or lesser degree depending on the characteristics of the system and the connected
loads. The wiring of the Interface Protection feedback signal contact minimizes these transients. Hence it
is advisable to ensure such wiring is made in all systems.
Operation of the SUNWAY TG TE inverters is in any case guaranteed regardless of the wiring of the
Interface Protection feedback signal contact.
SUNWAY TG TE inverters are configured in the factory with an external Interface Protection input enabled
and a jumper on terminal X3 (contacts 13 and 14). To acquire the status of the grid from an external
Interface Protection, remove the jumper and wire a normally excited NO contact on the X3 terminal board
(contacts 13 and 14).
Please refer to section 6.2.
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4.2.2. Grid Connection Contactor
The AC Grid Connection Contactor, located inside the cabinet, makes it possible to connect the SUNWAY
TG TE to the grid.
Should the Interface Protection trip, or in the event of an alarm, the Grid Connection Contactor is opened
disconnecting the inverter from the grid and stopping it. The Grid Connection Contactor is the component
which can perform opening under load, sized for the maximum inverter output current. It is referred to in
the Electrical and Mechanical Diagram as 18KM1.
The Connection Contactor may also act as an Interface Protection device (IP), depending on the type of
system, the connection prescriptions and relative regulations in force.
The status of the AC Grid Connection Contactor is indicated by the RUN LED on the display/keypad.
Status of the RUN LED
Description
LED ON
Contactor closed, the inverter is connected to the
grid.
LED OFF
Contactor open, the inverter is NOT connected to
the grid.
Figure 9: RUN LED on the display/keypad
WARNING
The emergency stop button disables operation of the SUNWAY TG TE in parallel with
the grid.
The contactor is equipped with a feedback signal contact, connected to the digital input MD15 (please
refer to the Programming Guide).
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4.2.3. DC Input Switch
The PV field DC disconnect switch (10QM1), located inside the cabinet, makes it possible to connect the
SUNWAY TG TE to the PV generator.
The disconnect switch is equipped with a return contact, connected to the digital input MD14 (please refer
to the Programming Guide).
4.2.4. AC Output Switch
The AC switch (PV field side) located inside the cabinet, makes it possible to connect the SUNWAY TG
TE to the grid.
The switch is equipped with a return contact, connected to the digital input MD18 (please refer to the
Programming Guide).
The control lever is located on the cabinet front side. For maximum safety this lever can be activated
without having to open the doors. The lever also stops the doors from being opened unless it is in the OFF
position.
4.3.
Display/keypad
The display/keypad module represents the inverter’s HMI interface.
It includes seven LEDs, an LCD display with four 16-character lines of text, a buzzer and nine function
keys. The display shows parameter values, diagnostic messages and the value of the variables processed
by the inverter.
For details concerning the structure of menus, parameter setup, the selection of measurements and the
messages shown on the display, please refer to the Programming Guide.
Figure 10: Display/keypad
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Key
SUNWAY TG TE
STANDARD
Function
BROWSING – Used for quitting menus and submenus (the display moves up a menu
level).
ESC
PROGRAMMING – In programming mode (flashing cursor) it ends parameter
modification and allows the user to select the next set of parameters (the switch from
programming mode to display mode is indicated by the cursor which stops flashing).
The value of the modified parameter is NOT saved on the non-volatile memory,
consequently it will be lost when the equipment is turned off.
BROWSING – Scrolls through the menus and submenus, the pages in the submenus or
parameters in descending order.
PROGRAMMING – Down arrow; decreases the value of the parameter.
BROWSING – Scrolls through the menus and submenus, the pages in the submenus or
parameters in ascending order.
PROGRAMMING – Up arrow; increases the value of the parameter.
SAVE/ENTER
BROWSING – For entering menus and submenus and selecting parameters for
modification (the switch from display mode to programming mode is indicated by the
cursor which starts flashing).
PROGRAMMING – Saves the value of the modified parameter on the non-volatile
memory to prevent the modifications from being lost when the equipment is turned off.
MENU
BROWSING - Each time this key is pressed it moves to the next status page.
TX | RX
Not used for this application.
RESET
Resets an alarm once the condition which caused it has been rectified.
START
Starts the device. The START command is stored in the memory. If the inverter
switches itself off without having received the STOP command, when it comes back on,
the run status will still be active and as soon as the solar radiation conditions are
adequate, the inverter will connect to the grid in parallel and supply power.
STOP
Stops the device. The STOP command is stored in the memory. If the inverter switches
itself off, the STOP command will still be active when it is next turned on and the
operator must press the START key to start the inverter.
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INSTALLATION GUIDE
LED
Function
Inverter in STOP or STAND-BY
Grid Connection Contactor open
RUN
Inverter running
Grid Connection Contactor closed
MPPT disabled
MPPT ON
MPPT enabled
Inverter OK
ALARM
Inverter in ALARM status
PV field voltage too low or too high
PV OK
PV field voltage OK
Incorrect grid parameters
GRID OK
NOTE: This LED remains OFF at night and when the PV field is not correctly
connected.
Grid parameters OK
Table 3: Function of the display/keypad LEDs
4.3.1. Adjustment of Contrast only
Press the SAVE key for more than 5 seconds; ***TUNING*** appears on the display and the LEDs above
the display come on and act as a 5-stage bar whose length is proportional to the level of contrast set.
and
keys to adjust the contrast. Press the SAVE key again for at least 2 seconds to
Press the
return to normal operating conditions with the new contrast setting active.
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4.3.2. Adjusting the Contrast, Backlighting and Buzzer
Press the TX|RX + SAVE keys for more than 5 seconds to enter full setup mode. Use the
and
keys to scroll through the seven display/keypad parameters. Once the parameter you wish to modify is
and
keys to
displayed, select by pressing the PROG key to enter setup mode and then use the
alter the parameter accordingly. Press SAVE to save the new value in the display/keypad unit’s nonvolatile memory.
The table below provides a summary of the values which can be set for the various parameters and their
meanings.
Parameter
Possible
values
Meaning
Indicates the version of the software installed in the display/keypad unit
(cannot be modified).
SW ver.
-
Language
Not used for this application
LOC
Contrast is set locally on the display
REM
Contrast is set by the inverter which forces the display setting
nnn
Numerical value of contrast adjustment from 0 (low) to 255 (high)
KEY
The buzzer sounds when the keys are pressed
REM
The buzzer is controlled by the inverter
OFF
The buzzer is disabled
ON
LCD backlighting is permanently ON
REM
LCD backlighting is controlled by the inverter
OFF
LCD backlighting is permanently OFF
Contrast
Contrast val.
Buzzer
Backlight.
Address
Not used for this application
Table 4: Display/keypad parameter setup
Once all parameter values have been set, press the SAVE key for more than 2 seconds to return to
normal operation.
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4.4.
INSTALLATION GUIDE
Converter Module
Figure 11: Single-line diagram of a SUNWAY TG TE - dotted line highlighting the converter module
SUNWAY TG TE modules are designed using a modular approach in order to maintain high standards in
quality and guarantee maximum performance.
The conversion unit is the module with component ID code 12U1 (11U1) in the Electrical and Mechanical
Diagram. It houses the DSP control board and the IGBT power switching devices using avant-garde
conversion technology which guarantees excellent reliability over time, even in the most demanding
conditions.
Should any faults arise involving the conversion unit, the inverter has been specially designed to make
repair and replacement operations quick and easy, thus limiting machine downtimes.
Convertors can be either monolithic or modular. Larger inverters use modular converters, first-class
technology in terms of performance and simplicity of maintenance operations.
For further details and the list showing correspondence between the inverter and converter installed,
please refer to section 12.5.
4.5.
Isolation Control Device
The inverter continually checks insulation resistance between the power supply and earth, indicating any
isolation loss.
The method of intervention and signalling if isolation loss is detected can be programmed:
•
Isolation loss generates a WARNING signal but does not stop the inverter.
•
Isolation loss generates an ALARM and stops the inverter.
•
Isolation loss is disabled.
Please refer to the Programming Guide in the Alarm Auto-reset menu.
If the PV field Earthed option is installed isolation loss is not checked. However, the inverter does indicate
that earth connection fuses have blown (please refer to section 8.2).
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WARNING
If the SUNWAY TG TE inverters are connected in parallel to a single transformer, directly
or via AC-Parallel cabinets, it is advisable to program the inverter so that insulation
leakage trips an emergency alarm which stops the inverter.
It is possible to select the alarm threshold by means of the Rotary Switch CE1 located on the control
board. See Figure 12: Isolation Control Board ES942
Figure 12: Isolation Control Board ES942
Table 5: Rotary switch position indicates the relationship between the position of the Rotary Switch CE1
located on the board and the relative isolation resistance threshold values below which an alarm is
generated.
Positions 8 and 9 refer to configurations for the Earthed PV field (please refer to section 8.2).
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INSTALLATION GUIDE
Rotary value
Isolation resistance value
0
30 KΩ
1
40 KΩ
2
50 KΩ
3
60 KΩ
4
80 KΩ
5
100 KΩ
6
130 KΩ
7
160 KΩ
8
POS EARTHED
9
NEG EARTHED
Table 5: Rotary switch position
The board is fitted with an AUTO-TEST button. When button “P1” is kept pressed for 10 seconds, an
isolation leakage alarm is simulated for 30 seconds. During the test the board’s self-diagnostics LEDs (L3,
L4) flash slowly.
NOTE
The PV field voltage should be greater than the minimum MPPT voltage.
The factory setting envisages an isolation resistance of 100 kΩ(±10%).
4.6.
Surge Protection
SUNWAY TG TE inverters are protected from power surges on the PV field input by appropriate Class II
SPDs (Surge Protective Devices), suitable for protecting the equipment from indirect discharges.
The “Y” configuration has been adopted which is perfectly compatible with Earthed or floating PV field
plants (please refer to section 8.2).
The SPDs are referred to in the Electrical and Mechanical Diagram using the component ID codes 10AP1,
10AP2 and 10AP3.
Each SPD is protected by an integrated MCCB (Moulded Case Circuit Breaker) against any overload of
the component.
Should the MCCB trip, a signalling contact is made available on terminal X3, contacts 56 and 57.
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Figure 13: SPD (Surge Protective Device)
As well as the integrated MCCB, a pair of back-up fuses are installed in SUNWAY TG TE inverters which
are co-ordinated with the SPDs.
No surge protective devices are provided for the AC output section.
The configuration adopted by Elettronica Santerno has proved to be very reliable and effective in the field.
However, the PV plant designer may include further protective devices both in inverter input and output in
addition to the ones already installed. Please refer to section 12.9.
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4.7.
INSTALLATION GUIDE
Serial Ports
SUNWAY TG TE inverters are equipped with a COM0 serial communication port for connecting external
devices.
If the optional Data Logger is installed, two further serial ports (COM1 and COM2) are also made available
(please refer to section 8.1) as well as an Ethernet port.
The main features of the serial ports are listed below:
•
Optoisolated ports
•
RS485 Bus with standard MODBUS/RTU protocol
•
Auto-diagnostics of the bus electrical levels (COM0 and COM1)
For further information on remote control, serial ports and the Ethernet port, please refer to section 7.
4.8.
Environmental Measures
SUNWAY TG TE inverters have six inputs for environmental measures via the environmental sensors
expansion and field I/Os board.
Inputs available for SUNWAY TG TE:
•
Four 12-bit resolution inputs configurable as 0-10 V f.s., 0-20 mA f.s., 0-100 mV f.s., temperature
acquisition with two-wire PT100.
•
Two 12-bit resolution inputs, 0-10 V f.s.
The factory settings of the six environmental inputs are indicated in the table below:
Environmental
measure
Sensor type
Factory setting
Measure
Environmental
measure 1
Sample cell
0-100 mV
Module surface radiation
Environmental
measure 2
Sample cell
0-100 mV
Horizontal surface radiation
Environmental
measure 3
Thermocouple
PT100
Ambient temperature
Environmental
measure 4
Thermocouple
PT100
Module temperature
Environmental
measure 5
Anemometer
0-10 V
Wind direction
Environmental
measure 6
Anemometer
0-10 V
Wind speed
Table 6: Factory settings of environmental inputs
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The environmental sensor inputs are available on the X3 terminal board (please refer to the Electrical and
Mechanical Diagram).
For the connection of the sensors, please refer to section 12.12.
For the technical specifications, please refer to section 12.12.
4.9.
Acquisition of Energy Measurements from External Meters
The field I/Os and environmental sensors expansion board makes it possible to connect one or two
external pulsed meters for measuring the energy delivered to the grid and the energy absorbed.
For connection of the counters, please refer to section 6.8.6.
4.10.
Power Control
SUNWAY TG TE inverters come with a Power Control function for limiting the power delivered based on
external request. It is possible to manage the Power Control function by:
-
setting, locally or in remote mode, certain parameters
-
4-wire interface, the external signals are acquired by the environmental sensors and field I/Os
expansion board
-
0-10 V analogue input. This mode is implemented on the inverter by means of a factory
configuration. For this purpose, please contact the Elettronica Santerno SpA CUSTOMER
SERVICE.
Please refer to the Programming Guide for correct programming of the Power Control function.
For connection of the external signals, please refer to 6.8.7.
4.11.
Programmable Digital Output
A programmable digital output is available on SUNWAY TG TE inverters. It is located on terminal X3,
contacts 20, 21 and 22. Please refer to the Electrical and Mechanical Diagram.
For further details on how to program the digital output, please refer to the Programming Guide.
4.12.
Ventilation System
SUNWAY TG TE inverters have a modular ventilation system made up of the following elements:
•
A series of fans installed on the converter
•
A series of fans inside the cabinet
The fans are driven directly by the control board.
An additional thermostat in connected to the cabinet fans for redundancy.
For the technical data concerning ventilation absorption and flow rate, please refer to section 4.12.
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4.12.1.
INSTALLATION GUIDE
Forced Ventilation Command
During inverter operation, particularly critical ambient conditions may arise, such as low temperatures
and/or a high level of relative humidity, which may cause condensation to form on the live parts of the
inverter.
If the technical room is fitted with suitable sensors designed to detect critical conditions, room conditioning
systems can be activated and cabinet ventilation devices can be started up. For this purpose, two
terminals are available, X3-62 and X3-63 (please refer to the Electrical and Mechanical Diagram).
Figure 14: Contact for forced cabinet ventilation command
4.12.2.
External Power Supply for Ventilation
The cabinet ventilation system may be powered by an external power source in order to save the energy
delivered to meet fiscal incentives.
Please refer to section 4.12.2.
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5. HANDLING AND ASSEMBLY
5.1.
Conditions for Transport
Handling may be carried out using one of the following systems:
•
Hoist
•
Pallet jack
•
Forklift
For further information, please consult section 12.7.
WARNING
For safety reasons and to ensure correct operation, it is strictly PROHIBITED to tilt
SUNWAY TG TE inverters forward or backwards.
Figure 15: Inverter tilting
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5.1.1. Hoisting the Equipment
To hoist the equipment use the eyebolts and/or the perforated bars incorporated in the inverter frame.
Make sure that the length of the hoisting ropes is such to form an angle which does not exceed 60 °.
The following figures show the correct way of hoisting the inverter.
Inverter with two-door cabinet
Figure 16: Hoisting the Inverter
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Inverter with three-door cabinet
Figure 17: Hoisting the Inverter
Figure 18: INCORRECT Hoisting
Inverter cabinet with more than three doors
Figure 19: Hoisting the Inverter
Rev. 04 - 03/07/2013
Figure 20: INCORRECT Hoisting
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5.1.2. Crane Fork Hoisting
Figure 21: Hoisting the inverter with a crane fork
5.1.3. Handling Using a Pallet Jack or Forklift Truck
If the inverter is to be lifted from underneath, a forklift must be used. Position the fork tines in the spaces
along the base which must be opened up beforehand by removing the central base panels.
Figure 22: Lifting the equipment from underneath
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5.2.
SUNWAY TG TE
STANDARD
Environmental Requirements for Storage and Transport
Required conditions
Ambient temperature for
storage and transport
-25 °C ÷ +60 °C
Ambient humidity for storage
From 5% – 95%, from 1 g/m – 25 g/m , with no condensation or ice
formation (category 3K3 in compliance with EN50178).
Ambient humidity during
transport
Maximum 95% up to 60 g/m . Slight condensation may occur when
the equipment is not running (category 2k3 in compliance with
EN50178).
Atmospheric pressure for
storage
86 – 106 kPa (categories 3k3 and 1k4 in compliance with EN50178).
Atmospheric pressure during
transport
70 – 106 kPa (category 2k3 in compliance with EN50178).
3
3
3
Table 7: Environmental requirements for storage and transport
5.2.1. Base
To lift the cabinet off the pallet and for final positioning, remove the front and back plates found on the
base so that the forklift tines can be inserted under the cabinet. Please refer to section 5.3.1.
After the cabinet has been positioned the openings can be closed off by replacing the plates.
Figure 23: Base with removable plate
Figure 24: Base with the plate removed
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5.3.
INSTALLATION GUIDE
Assembly of the Inverter on the Installation Site
All inverters belonging to the SUNWAY TG TE series are designed for indoor installation.
WARNING
Environmental conditions significantly affect the life-expectancy of inverters,
consequently DO NOT install the inverter in a location which does not meet the required
specifications.
Provide adequate ventilation or air cooling system.
NOTE
Always leave enough room in front of the inverter to be able to fully open the cabinet doors.
In order to prevent problems in door closure and/or incorrect operation of the door
microswitches, the cabinet must be perfectly level even using shims if necessary.
The correct distances to be observed are indicated in Table 59: Clearance values for SUNWAY TG TE.
5.3.1. Centre of Gravity and Fork Tine Positioning
This heading concerns the position of the SUNWAY TG TE inverters' centre of gravity, with and without a
DC-Parallel. The indication refers to the distance of the centre of gravity from the far left of the cabinet.
To assist in handling operations the correct position for the fork tines is indicated, taking into consideration
the gaps available in the inverter base.
SUNWAY TG TE
Two-door model W = 1400
With DC-Parallel
Table 8: Centre of gravity and fork tine position for two-door model W = 1400
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Three-door model W = 1800
SUNWAY TG TE
STANDARD
With DC-Parallel
Table 9: Centre of gravity and fork tine position for three-door model W = 1800
SUNWAY TG TE
Four-door model W=2600
With DC-Parallel
Table 10: Centre of gravity and fork tine position for four-door model W = 2600
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INSTALLATION GUIDE
6. INSTALLATION AND COMMISSIONING
Figure 25: Internal view of the SUNWAY TG TE inverter cabinet
The following paragraphs provide information on power and signal cable connection, how to connect
multiple inverters in parallel and commissioning.
6.1.
Wire Connection Terminal Board
Terminal
Type
Function
X1
Power
Three-phase AC grid
X2
Power
PV field
X3
Signals
Auxiliary terminal board
X4
Signals
COM0, COM1 and COM2 serial links
X7
Auxiliary circuits power supply
Auxiliary mains and UPS
Table 11: Wire Connection Terminal Board
6.1.1. Cable Inlet
Cable inlet is at the bottom of the cabinet. Please refer to the Electrical and Mechanical Diagram, sheets 7
and 8.
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6.1.2. DC Cable Connection
For the technical data concerning the number of cables to be connected, the maximum allowable crosssection and cable lug type, please refer to section 12.
Please refer to section 9 if a DC-Parallel compartment is installed.
6.1.3. AC Cable Connection
For the technical data concerning the number of cables to be connected, the maximum allowable crosssection and cable lug type, please refer to section 12.
6.1.4. Connecting Earth Cables
For the technical data concerning the number of cables to be connected, the maximum allowable crosssection and cable lug type, please refer to section 12.
6.1.5. Connecting the Signal and Auxiliary Power Supply Cables
For the technical data concerning the number of cables to be connected, the maximum section and cable
lug type, please refer to section 12.
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6.2.
INSTALLATION GUIDE
Connection to the External Transformer
The following minimum requirements must be met when installing the external transformer.
6.2.1. Transformer Technical Requirements
The transformer shall be designed to meet or exceed the following technical requirements.
DATA
Unit
VALUE
Minimum Rated Power
kVA
See section 6.2.2
Frequency
Hz
According to applicable standards
Phases
3
Primary Voltage
kV
According to applicable standards
Secondary Voltage
V
Based on inverter AC output voltage
Primary Tapping Voltage Range
(+2) (-2) x 2.5% (Suggested)
Primary/Secondary Connection
Delta/Star or Star/Delta
Secondary Neutral Terminal
Not required for inverter operation. It must not
be connected to ground (see section 6.10)
Withstand Voltages - Primary: Um/FI/imp
kV
According to applicable standards
Withstand Voltages - Secondary: Um/FI/imp
kV
1.1/3
Short-Circuit Impedance (at 75°C) pri/sec
%
6% (+/- 10% tolerance)
%
10% (+/- 10% tolerance)
Short-Circuit Mutual Impedance sec/sec
(in case of double-wound transformer)
Electrostatic Shield
(in case of LV/MV transformer)
Electrostatic Shield
(in case of LV/LV transformer)
Provided. The shield must be earthed.
Not required
Table 12: Transformer technical requirements
6.2.2. Transformer Application Requirements
The transformer shall be designed to work at rated power according to specific application requirements.
The maximum dU/dt between secondary windings and the ground shall be 500V/usec for consistency with
solar inverter output characteristics.
The secondary windings shall be tolerant for pulsed waveforms of up to +/- 1500V to ground.
The transformer shall operate with a maximum THD current generated by the inverter at full power equal
to 3%.
Assuming that Pout is the rated output power of the connected inverter(s), it is advisable to size the
transformer for 1.1 x Pout rated power.
Example: For a system made up of the following:
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No. 2 SUNWAY TG 750 1000V TE - 320
Pnom AC = 2x665 kVA = 1330 kVA
The suggested transformer sizing is 1500 kVA
Observe the prescriptions concerning cable sizing and the relative cable lugs.
Whenever necessary, an interface relay can be connected downstream from the LV/LV transformer which
acts as indicated in section 4.2.1.
400V 50Hz
L1
Line
L2
L3
To be carried out by
the customer
Line p rotective
device
10F3
10x38
1AgL
A
B
C
a
b
c
LV/LV
Transformer
Sunway TG 600V dY 202V/400V
Monitoring
relay
(option)
Sunway TG 800V dY 270V/400V
X1
3
L1
2
1
L2
L3
X3
13
14
Sunway Inverter
P001186-B
Figure 26: Connection to an interface relay downstream from the LV/LV transformer
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6.3.
INSTALLATION GUIDE
External AC Switch Management
SUNWAY TG TE inverters are designed to be easily connected to external motor-driven AC grid
connection switches. These switches must be controlled by two distinct pulse signals, one for opening and
one for closing.
The two pulse signals are available on the inverter terminal X3, via relay contacts 19KA4 and 19KA5
(please refer to the Electrical and Mechanical Diagram). Duration of the signals is factory-set at 500 ms.
Figure 27: External AC switch connection contacts
Figure 28: External AC switch contacts timing diagram
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Co-ordination between parallel-connected inverters and the external AC switch (if installed) must be done
through external logic, usually a system PLC.
This system provides interfacing with the AC switches installed on the Medium Voltage side and can deenergize the LV/MV transformer during night-time hours.
The operating logics can be simplified as follows:
•
The system PLC permits closure of the switch as soon as requested by one of the connected
inverters.
•
The system PLC permits opening of the switch only if this is required by all the connected inverters.
6.4.
External Emergency Stop Command Management
The emergency function can have a remote operation facility by means of a contact. For this purpose, two
terminals are available, X3-60 and X3-61 (please refer to the Electrical and Mechanical Diagram).
Figure 29: External emergency stop command contact
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6.5.
INSTALLATION GUIDE
Connecting Multiple Inverters in Parallel
Up to two SUNWAY TG TE inverters can be connected to the same LV/LV or LV/MV transformer by using
a double-wound transformer.
It is recommended the transformer have a y/D configuration, i.e. an inverter side star configuration. In
which case neutral must never be connected to earth.
It is possible to connect the inverters in AC parallel on a single-wound transformer if the application is
approved beforehand. Please contact Elettronica Santerno SpA.
6.5.1. Carrier Phase Synchronization
SUNWAY TG TE inverters are designed to reduce electrical disturbance to a minimum, using multi-stage
filters specifically enhanced for PV applications.
In certain cases, such as when connecting inverters in AC parallel on a single-wound transformer, it may
be useful to synchronize the carrier signals from all the inverters to reduce electrical disturbance further
still.
SUNWAY TG TE inverters allow for carrier phase synchronization in multi-inverter systems. In this type of
installation, one inverter acts as PMW MASTER while all the others are PMW SLAVES.
To do this, proceed as follows:
•
Enable the function via a suitable parameter (please refer to the Programming Guide).
•
Wire the inverters as illustrated in Table 13: Connections for PMW synchronization and in Figure
30 and Figure 31.
PWM MASTER inverter
PWM SLAVE inverter
+VMDO1
(Control terminal board – 24)
----wire to--
+24V
(Control terminal board – 23)
MDO1/FOUT
(Control terminal board – 25)
----wire to--
MDI8
(Control terminal board – 21)
CMDO1
(Control terminal board – 26)
----wire to--
CMD
(Control terminal board – 22)
Table 13: Connections for PMW synchronization
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Figure 30: Wiring for phase synchronization – 2 SUNWAY TG TE inverters
Figure 31: Wiring for phase synchronization – 3 or more SUNWAY TG TE inverters
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6.6.
INSTALLATION GUIDE
Segregation and Lead-sealing of AC Output
The AC output section of inverters is segregated inside a metal cage which can be lead-sealed for antifraud purposes.
For this purpose, the inverter is supplied with components which can be lead-sealed (see the following
figures).
Figure 32: Lead-sealable cage for the AC output section
A
Lead-sealable cage for the AC output section
Figure 33: Lead-sealable nut cover
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6.7.
SUNWAY TG TE
STANDARD
Connection to the Communications Ports
Please refer to 7.4.
6.8.
Connection to the Environmental and Field I/O Inputs
SUNWAY TG TE inverters have six inputs for environmental measures via the environmental sensors and
field I/O expansion board. For the technical specifications of the environmental sensors and field I/Os
expansion board, please refer to section 12.12.
Figure 34: Environmental sensors and filed I/Os Expansion Board
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6.8.1. Environmental Sensors Terminal Board
Figure 35: Diagram of environmental sensors terminal board
Environmental measure
Type of sensor set in
the factory
Factory setting
Terminal
Environmental measure 1
Sample cell
0-100 mV
X3, contacts 5-6
Environmental measure 2
Sample cell
0-100 mV
X3, contacts 7-8
Environmental measure 3
Thermocouple
PT100
X3, contacts 1-2
Environmental measure 4
Thermocouple
PT100
X3, contacts 3-4
Environmental measure 5
Anemometer
0-10 V
X3, contacts 9-10
Environmental measure 6
Anemometer
0-10 V
X3, contacts 11-12
Table 14: List of environmental sensors terminals
6.8.2. Configuration DIP-switches
The environmental sensors and field I/Os expansion board is equipped with 3 configuration DIP-switches
(see Figure 34: Environmental sensors and filed I/Os Expansion Board) which allow the user to set the
operating mode as indicated in Table 15: Function of the 3 DIP-switches on the environmental sensors
and field I/Os expansion board.
DIPswitch
Function
SW1
For setting the operating mode for the environmental analogue inputs 1 and 2
SW2
For setting the operating mode for the environmental analogue inputs 3 and 4
SW3
Factory-set configuration SW3.2=ON, SW3.5=ON, all the others OFF (do not modify)
Table 15: Function of the 3 DIP-switches on the environmental sensors and field I/Os expansion
board
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The following table indicates the possible configurations of the SW1 and SW 2 DIP-switches depending on
the required set-up of the analogue channels.
SW1
Configuration of environmental analogue channel 1
0-10 V f.s. mode
0-100 mV f.s. mode
0-20 mA f.s. mode
Temperature reading with
PT100 thermistor
Table 16: Environmental analogue channel 1 DIP-switch configuration
Configuration of environmental analogue channel 2
0-10 V f.s. mode
0-100 mV f.s. mode
0-20 mA f.s. mode
Temperature reading with
PT100 thermistor
Table 17: Environmental analogue channel 2 DIP-switch configuration
SW2
Configuration of environmental analogue channel 3
0-10 V f.s. mode
0-100 mV f.s. mode
0-20 mA f.s. mode
Temperature reading with
PT100 thermistor
Table 18: Environmental analogue channel 3 DIP-switch configuration
Configuration of environmental analogue channel 4
0-10 V f.s. mode
0-100 mV f.s. mode
0-20 mA f.s. mode
Temperature reading with
PT100 thermistor
Table 19: Environmental analogue channel 4 DIP-switch configuration
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The factory settings for these DIP-switches are indicated below:
Factory-set configuration
Environmental analogue channel 1
0-100 mV f.s. mode
Environmental analogue channel 2
0-100 mV f.s. mode
Environmental analogue channel 3
Temperature reading with PT100 thermistor
Environmental analogue channel 4
Temperature reading with PT100 thermistor
Table 20: Environmental sensors and field I/Os expansion board DIP-switch configuration
WARNING
The inputs configured for voltage have a high input impedance and must never be left
open if active. Isolating a conductor relative to an analogue input configured as a
voltage input does not guarantee that the channel reading will be zero. Zero is only
correctly detected if the input is wired to a low-impedance or short-circuited signal
source. Therefore, do not put relay contacts in series on the inputs to reset the reading.
NOTE
It is necessary to set the software parameters to match the DIP-switch settings. Hardware
configuration settings which do not correspond with the type of acquisition set in the
parameters produce results which do not reflect the values actually acquired (Please refer to
the Programming Guide)
A voltage or current value which exceeds the upper full scale value or is less than the lower full
scale value produces a saturated acquired value of the maximum and minimum measures
respectively.
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6.8.3. Analogue Inputs to Sensors with Voltage Output
It is advisable to carry out connection of the voltage source using a shielded twisted pair by connecting the
braid onto the side of the environmental sensors and field I/O expansion board.
Although the “slow” acquisition analogue channels have a cut-off frequency just above 10 Hz, and hence
the main source of disturbance, i.e. the grid frequency, is already reduced, it is advisable to take care over
the connections especially for configurations with a full scale of 100mV or with connections using cables
over 10 metres in length. Figure 36: Connection to 0 – 10 V analogue input and Figure 37: Connection to
0 – 100 mV analogue input provide an example of the connection for voltage source acquisition.
Appropriately set the DIP-switches for configuring the relative analogue channel used, setting the full scale
at 10 V f.s. or 100 mV f.s depending on needs and setting the relative programming parameter to be
consistent with the settings just made.
Figure 36: Connection to 0 – 10 V analogue input
Figure 37: Connection to 0 – 100 mV analogue input
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6.8.4. Analogue Inputs to Sensors with Current Output
Connection of the slow analogue inputs to current sources is illustrated in Figure 38: Connection of 0 – 20
mA (4 – 20 mA) sensors to current inputs. The channels capable of receiving current signals with 20 mA
f.s. are XAIN8, XAIN9, XAIN10 and XAIN11, which correspond to terminals 27, 29, 31 and 33. As always,
it is necessary to set the configuration DIP-switches relative to the analogue channel used by setting the
end scale at 20 mA f.s and setting the relative programming parameter at 0 – 20 mA or 4 – 20 mA.
Figure 38: Connection of 0 – 20 mA (4 – 20 mA) sensors to current inputs
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6.8.5. Analogue Inputs to PT100 Thermistor
The environmental sensors and field I/Os expansion board makes it possible to directly carry out
temperature measurements by means of the connection to the standard PT100 thermistor. To simplify
wiring a two-wire connection has been adopted. For this reason it is highly recommended to limit the
length of the connection cable and ensure that the cable is not exposed to high temperature variations
during operation. The channels capable of receiving PT100 signals are XAIN8, XAIN9, XAIN10 and
XAIN11, corresponding to terminals 27, 29, 31 and 33. Figure 39: Connection of the PT100 thermistor to
the analogue channel illustrates how to carry out connection: it is advisable to use a shielded cable whose
braid is connected directly to the inverter's metal frame using the cable holding terminals provided.
If the connection is made using a cable over 10 metres in length, system measurement calibration must
2
be carried out. For example, if the connection is made using a 1 mm (AWG 17) shielded twisted pair, a
reading error equal to approximately +1°C occurs for every 10 metres of cable.
Measurement calibration is obtained by connecting, in place of the sensor, a PT100 sensor emulator set
at 0°C (or a precision resistor at 100 Ω 0.1%) to the line terminals and then correcting the relative offset
value (please refer to the Programming Guide).
Figure 39: Connection of the PT100 thermistor to the analogue channel
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6.8.6. External Pulsed Meters for Measuring Energy
The external meters are connected by means of one or two voltage-free contacts as illustrated below.
Figure 40: Connection of the external signals for pulsed meter energy measurements
Digital input
Environmental sensors and field
I/Os expansion board terminal
Terminal
X3
Function
XMDI3
41
48-50
Energy pulsed meter 1
XMDI4
42
49-50
Energy pulsed meter 2
Table 21: Digital inputs for external meters
NOTE
The voltage levels to be used for pulsed meters are:
0 V - Low level
24 V - High level
As an alternative, use a voltage-free or PNP contact and on-board +24V power supply.
The maximum input frequency for auxiliary digital inputs is 40 Hz.
The external contacts must be potential free. Please refer to the Programming Guide for correct setting of
the scale factors of the external pulsed meters.
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6.8.7. External Signals for Controlling the Power Delivered
Digital inputs available for SUNWAY TG TE:
Digital input
Board
terminal
Terminal
X3
Function
XMDI1
39
64-65
Multifunction auxiliary digital input 1 used for controlling
the power delivered.
XMDI2
40
64-66
Multifunction auxiliary digital input 2 used for controlling
the power delivered.
XMDI5
45
64-67
Multifunction auxiliary digital input 3 used for controlling
the power delivered.
XMDI7
47
64-68
Multifunction auxiliary digital input 4 used for controlling
the power delivered.
Table 22: Digital inputs for controlling the power delivered
4-WIRE POWER CONTROL FUNCTION
Connection of the external signals for management of the power delivered is carried out via four voltagefree contacts as illustrated below.
Figure 41: Connection of the external signals for controlling the power delivered
NOTE
The voltage levels to be used for the external signals for controlling the power delivered are:
0 V - Low level
24 V - High level
As an alternative, use a voltage-free or PNP contact and on-board +24V power supply.
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Figure 42: External signals for controlling the power delivered via four contacts
Please refer to the Programming Guide for correct programming of the Power Control function.
POWER CONTROL FUNCTION WITH 0 - 10 V ANALOGUE SIGNAL
The Power Control function allows the power delivered to be controlled also by an 0 - 10 V analogue
signal.
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6.9.
SUNWAY TG TE
STANDARD
Auxiliary Circuits Power Supply
6.9.1. UPS
SUNWAY TG TE inverters can be connected to a UPS (to guarantee back-up power for the Santerno antitheft system) on terminals X7-3 and X7-4 (please refer to the Electrical and Mechanical Diagram).
Factory configuration involves jumpers between terminals X7-1 and X7-3 and between terminals X7-2 and
X7-4.
If connection to a UPS is made, remove the jumpers between X7-1 and X7-3 and between X7-2 and X7-4.
Terminals X7-1 and X7-2 remain free but must NOT be used.
Figure 43: Terminals available for connection to a UPS
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6.9.2. External Power Supply for Ventilation
The cabinet ventilation system may be powered by an external power source in order to save the energy
delivered to meet fiscal incentives. For this purpose, two terminals are available, X7-7 and X7-8 (please
refer to the Electrical and Mechanical Diagram).
The factory setting involves jumpers between terminals X7-5 and X7-7 and between terminals X7-6 and
X7-8. If the power supply to the cabinet ventilation system is external, remove the jumpers between
terminals X7-5 and X7-7 and between X7-6 and X7-8. Terminals X7-5 and X7-6 remain free but must NOT
be used.
The inverter must be appropriately programmed by setting the parameter relative to the auxiliary power
supply (please refer to the Programming Guide, Manager menu). In this way, the auxiliary power supply is
continuously monitored so that should it be cut off, the inverter stops. Hence maximum safety is ensured
for operation of the SUNWAY TG TE.
Figure 44: External Power Supply for Ventilation
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6.10.
SUNWAY TG TE
STANDARD
Configuration of the IT/non-IT System
It is usually preferable for the PV field configuration to be an IT type.
An IT configuration guarantees continuity of service and makes it possible to handle single earth fault by
means of simple detection systems.
Usually the IT configuration of the plant is lost when one of the following occurs:
•
Earth fault
•
Installation of the Earthed Option (please refer to section 8.2).
6.10.1.
SPD Configuration
When an SPD trips, the SPD impedance drops to very low values. In this way, power surges are limited
and the induced currents are discharged to protect the equipment. However, if the SPDs are earthed, they
may create a low-impedance path for the plant currents, thus invalidating the IT configuration.
Whenever it is deemed necessary to install an SPD to protect the inverter AC output, certain design
aspects must be taken into consideration if the Earthed option is installed. In fact, with this configuration
during normal operation common mode voltages at higher switching frequency than the rated output
voltage may occur.
It is therefore advisable to adopt the following SPD configuration:
•
For differential mode protection, a star configuration with neutral connection (use the neutral/ star
centre on the inverter side as a reference).
•
For common mode protection, an appropriately sized SPD connected between neutral and earth.
6.10.2.
Connection to Metering Voltage Transformer
Take great care over the connection to a metering voltage transformer. These instruments are normally
used as fiscal metering devices connected to the inverter output.
Whenever these instruments are connected downstream from a LV/LV transformer, the connection can be
made without following any particular instructions.
However, when they are connected to the AC output phases immediately downstream from the SUNWAY
TG TE inverter, avoid connecting the windings to earth.
In fact, VT impedance is guaranteed at grid frequency only. Common mode currents exist in the system at
a switching frequency which could adversely affect the VT. Furthermore, if an earth fault occurs on the PV
field, average non-null currents arise which find a low-impedance path through the VT windings to earth.
These currents can rapidly saturate and consequently damage the TV cores.
Use the following configurations to connect the VTs to the inverter’s AC output:
•
Delta connection
•
Star connection with neutral connection (use the neutral/star centre on the inverter side for
reference).
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6.11.
INSTALLATION GUIDE
Commissioning
This chapter deals with the essential procedures involved in equipment commissioning.
WARNING
Before interconnecting the SUNWAY TG TE to the PV field, check that all the power,
signal and auxiliary connections are securely tightened.
Before connecting the PV field cables to the inverter, check:
- if the polarity of the individual sub-field connections to the DC-Parallel (if installed) is
correct.
- if the polarity of the individual string connections to the String Boxes (if installed) is
correct.
Checks:
•
Check DC switch 10-QM1 is open.
•
Check grid AC switch 16-QM12 is open.
•
Check the emergency stop button is released and inhibit door safety by means of the relative Keyoperated selector switch located on the front of the cabinet.
•
Access terminal board X2 and check the correct polarity of the PV field input terminals.
•
Turn on the main switch upstream to power the inverter's AC output.
•
Check the correctness of the phase-to-phase voltage at terminal board X1.
Inverter power supply:
•
Close the DC switch located inside the cabinet. If the field voltage is sufficient, the inverter comes
on in STOPPED status.
•
Close the AC switch. After a few seconds the GRID LED on the display comes on.
NOTE
The optional Interface Protection (IP) is sensitive to the phase sequence of the grid voltage. If
installed and the GRID LED does not light up on the display this may be due to incorrect phase
sequence. Check the LED indicators on the device. If necessary, invert the two phases on the
X1 terminal board.
•
The equipment is now ready to deliver active power to the grid with power factor = 1 and is ready for
automatic maximum power point tracking (Automatic MPPT) Close the cabinet doors and enable
door safety by means of the relative Key-operated selector switch located on the front of the
cabinet.
•
Enable the cabinet by means of the relative Key-operated selector switch located on the front of the
cabinet and press the START button on the display/keypad. If the open-circuit voltage of the PV
field exceeds the value set in parameter P020*1.1 (Field Menu), the inverter will start running and
begin delivering power to the grid.
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NOTE
Pressing of the START button is a condition stored in the system memory, hence, if the
SUNWAY TG TE power supply is cut off without an alarm tripping or without the STOP button
being pressed, the inverter will still have the RUN command active when the power supply
comes back on.
• To reset any alarm, press RESET on the display/keypad. If the cause which caused the alarm has
been removed, the alarms are reset and the START command can be given to restart the inverter.
NOTE
Alarms which are automatically reset (please refer to the Programming Guide, Autoreset
Menu) do not end the run command. So, as soon as the alarm which generated the alarm has
ceased to exist, the alarm will be reset automatically and the inverter will return to run mode
without the START button being pressed.
Pressing the emergency stop button brings the inverter to a standstill and the grid interface
devices open.
WARNING
When an alarm message appears, find out what caused the alarm before restarting the
inverter.
DANGER
After turning off the inverter, wait at least 10 minutes before carrying out any connection
modifications, in order to give the DC-link capacitors time to discharge.
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7. COMMUNICATIONS AND REMOTE MONITORING
7.1.
General Information
SUNWAY TG TE inverters provide extensive and modular connectivity, both in the basic version and the
version with the optional Data Logger (please refer to section 8.1).
•
Full integration with the Santerno remote monitoring system for checking production performance
and detecting alarms.
•
Complete remote monitoring accessibility in both local and remote mode from PC and
SunwayPortal web portal.
Connectivity of SUNWAY TG TE inverters:
•
Up to three RS485 Modbus/RTU serial links available
•
Ethernet port available
7.2.
Communication Ports and Protocol Used
The SUNWAY TG TE inverter serial ports use 2-wire RS485 electric standard plus a 0 volt reference wire
and standard Modbus/RTU protocol.
The inverter usually behaves as a Modbus slave, i.e. it responds to requests made by a Modbus Master
device, usually a PC, Data Logger board or a PLC.
Via the serial connection to the inverter internal measurements can be read and all operating parameters
can be read, written and saved (COM0 port).
The COM1 and COM2 ports can be used as Modbus Masters for the field trunk lines the Smart String
Boxes are connected to.
The SUNWAY TG TE inverters Ethernet port uses a standard Modbus over proprietary TCP/IP.
Connection is made using the RemoteSunway application or using one of the remote monitoring services
made available by the SunwayPortal.
Protocol and availability relative to the serial ports are indicated below.
CommunicationPort
Available with
BASIC configuration
Available with Data
Logger optional
Protocol
COM0
Yes
Yes
Slave Modbus
COM1
No
Yes
Master/Slave Modbus
COM2
No
Yes
Master/Slave Modbus
Ethernet
No
Yes
Modbus Over Proprietary
TCP/IP
Table 23: Communication ports
For specifications concerning the protocol, programming of the serial parameters, the Modbus address
etc., please refer to the Programming Guide.
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7.3.
SUNWAY TG TE
STANDARD
Connection Topologies
The connection topologies may be point-to-point or multidrop. The connection methods are described
below.
7.3.1. SUNWAY TG TE - Basic Version
Configuration diagram for the basic version of the SUNWAY TG TE.
Figure 45: Configuration diagram of SUNWAY TG TE without optional Data Logger board
Communication ports on X4 terminal board:
•
COM0 control board
The COM0 serial link on the control board is available on the X4 terminal board via the RS485 galvanic
isolation board. This serial link can only be used in Modbus Slave mode. The default Modbus address is 1.
NOTE
The standby bus voltage values for COM0, connected to the RS485 galvanic isolation board
drivers are:
2.7 V between line A (D1) and 0 V
2.3 V between line B (D0) and 0 V
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7.3.2. SUNWAY TG TE with Optional Data Logger Board
Configuration diagram of SUNWAY TG TE with optional Data Logger board
Figure 46: Configuration diagram of SUNWAY TG TE with optional Data Logger board
•
PC1: a PC, PLC or other Modbus Master device.
•
PC2: a PC, PLC or other Modbus Master device.
•
QF: RS485 communication trunk line between the inverter and the Smart String Box (for example
modules in a subfield).
Communication ports on X4 terminal board:
•
COM0 control board.
•
COM1 Data Logger.
•
COM2 Data Logger.
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The COM0 serial link on the control board is available on the X4 terminal board via the RS485 galvanic
isolation board. This serial link can only be used in Modbus Slave mode.
The COM1 serial link on the Data Logger board is available on the X4 terminal board via the RS485
galvanic isolation board. This serial link can be used in Modbus Master or Slave mode. The COM1 port
can be used as Modbus Master for the field trunk lines to the Smart String Boxes.
The COM2 serial link on the control board is available directly on the X4 terminal board. This serial link is
galvanically isolated inside the Data Logger board. It can be used in Modbus Master or Slave mode. The
COM1 port can be used as Modbus Master but it is preferable to use COM1 for the field trunk lines to the
Smart String Boxes.
NOTE
The standby bus voltage values for COM2, connected to the RS485 galvanic isolation board
drivers are:
2.6 V between line A (D1) and 0 V
2.4 V between line B (D0) and 0 V
For COM2 the terminators are enabled by default. If the COM2 is used for a multidrop
connection between the inverters, only the last section must be terminated.
WARNING
If the COM1 is used as a Master port for the field trunk lines to the Smart String Boxes,
manually program the Data Logger board routing table on COM1. Please refer to the
Data Logger Programming Guide.
7.3.3. Interconnection of SUNWAY TG TE with Optional Data Logger Board
Figure 47: Configuration diagram of SUNWAY TG TE with multiple Data Logger boards
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Connection to the following external communication devices is indicated in the diagram above:
•
PC1: a PC, PLC or other Modbus Master device.
•
PC2: a PC, PLC or other Modbus Master device.
•
QF(1): RS485 communication trunk line between the inverter and the Smart String Box (for example
modules in a subfield).
•
QF(2): a second RS485 communication trunk line between the inverter and the Smart String Box
(for example, modules in a second subfield).
7.3.4. Point-to-Point Connection
A point-to-point connection is made via a wired connection between the inverter and a PC, a PLC or other
Modbus Master device.
If a PC is used it must be equipped with a RS485 port which is usually available as an optional on
industrial PCs. If only USB ports are available, a USB to RS485 converter must be used. Elettronica
Santerno is able to supply you with a converter if required. It is advisable to use the COM0 port on the
inverter and enable the line terminators.
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7.3.5. Multidrop Connection
It is possible to connect a series of SUNWAY TG TE inverters using a multidrop connection on RS485
bus.
Figure 48: Multidrop connection diagram
The RS485 multidrop line to multiple devices must be wired using a linear and not a star topography: each
device connected to the line must be connected by an incoming cable from the previous device and have
an outgoing cable to connect the next device. The exceptions are obviously the first and last devices in the
chain which, will have only an outgoing line and an incoming line respectively.
Elements participating in a RS485 section are called nodes. The maximum number of nodes which can be
connected on a section is limited to the following aspects:
•
Logic limit of the bus, equal to 247
•
Length of the connection
•
Transmission speed
•
Electronic drivers used
The limit set by the line drivers used in SUNWAY TG TE inverters is 30 devices. It is not advisable to use
section lengths exceeding 500m. Should it be necessary to connect more than 30 devices on the same
line or over a length exceeding 500 m, it is advisable to break the connection up into more than one
section using RS485 repeaters.
NOTE
The RS485 bus default rate is 38400 baud. It is not advisable to exceed this value. In the event
of communication disturbances, it is possible to set the rate at a lower value (19200 or 9600
baud).
Each inverter has its own identification number to distinguish it in a univocal manner in the network under
one PC. To change the factory settings of the Modbus address, please refer to the Programming Guide.
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7.4.
INSTALLATION GUIDE
Connection
7.4.1. RS485 Bus – Main Principles
The MODBUS-IDA organization (http://www.modbus.org) defines the connection for Modbus
communication on RS485 serial link (used by the inverter) as 2-wire cable type. For this type of cable, the
following specifications are recommended:
Connection cable
Shielded cable made up of a balanced pair known as D1/D0 + common
conductor. Recommended cable: Belden 3106A Paired EIA Industrial
RS485 PLTC/CM.
Type of cable
Minimum section
conductors
for
2
AWG23 corresponding to 0.258 mm . For long lengths it is advisable to use
2
a larger section, up to 0.75 mm .
Maximum length
500 metres with reference to the maximum distance measured between the
two stations furthest apart.
Impedance
specifications
Recommended over 100 Ω, usually 120 Ω.
Table 24: Connection cable
It is advisable to connect all the equipment connected to the multidrop connection network to the earth by
means of a common conductor. In this way, any differences in earth potential between different equipment
which may interfere with communications is reduced to a minimum.
The common terminal 0V connection is necessary. An 0V connection which is common to all equipment in
the multidrop communication network minimizes possible differences of reference potential between the
equipment which could interfere with communication.
The common reference of control board power supply is isolated in relation to earth. By connecting one or
more inverters to a communication device with a common earth (for example a PC) a low-impedance path
between the control board and earth is obtained. It is possible that disturbances conducted at high
frequency from the power parts of the inverter may transit along this path and this can cause malfunctions
to the communication apparatus.
It is always advisable to equip the communication equipment with a galvanically isolated RS485
communication interface or a galvanically isolated RS485/USB convertor.
WARNING
Cat. 5 2-, 3- or 4-pair data transmission cables cannot be used for the serial connection,
not even over short sections.
Wiring operations of the module must be carried out when the inverter is NOT powered.
Remember to take all the necessary precautions before accessing the connectors and
before handling the board.
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7.4.2. COM0 and COM1 Ports
Serial port
Available with
BASIC
configuration
Available with
Data Logger
optional
Optoisolated port
Terminal and
contacts
X4-1: A (D1)
COM0
Yes
Yes
Yes
X4-2: B (D0)
X4-3: 0V
X4-5: A (D1)
COM1
No
Yes
Yes
X4-6: B (D0)
X4-7: 0V
Table 25: COM0 and COM1 serial port connection
The galvanic isolation between the inverter’s COM0 and COM1 serial ports and the external
communication devices is implemented by means of the RS485 galvanic isolation boards, referred to as
13A1 and 22A3 on the Electrical and Mechanical Diagram.
The RS485 line terminators on the COM0 and COM1 serial ports are enabled on the RS485 galvanic
isolation board. The INVERTER port terminators must not be modified.
DIP-switch
Function
SW1-1, SW1-2
Master side RS485
terminator
MASTER
Port Terminators
Factory setting
Notes
Both ON:
terminators enabled
ON: 150 Ω resistor between A (D1)
and B (D0), 430 Ω resistor between
A (D1) and +5 VE, 430 Ω resistor
between B (D0) and 0 VE
OFF:
no
termination
polarization resistor
SW2-1, SW2-2
INVERTER
Port Terminators
Inverter side RS485
terminator
Both ON:
terminators enabled
do not change
do not change
and
ON: 150 Ω resistor between A (D1)
and B (D0), 430 Ω resistor between
A (D1) and +5 VM, 430 Ω resistor
between B (D0) and 0 VM
OFF:
no
termination
polarization resistor
and
Table 26: COM0 and COM1 – SW1 termination DIP-switch
NOTE
Incorrect setting of the terminators in a multidrop line may inhibit communication and lead to
communication difficulties particularly at high baud rates. If more than the two prescribed
terminators have been installed on a line some drivers may enter protection mode for thermal
overload thus blocking the communication of some devices.
To access the SW1 DIP-switches remove the front protective cover from the RS485 galvanic isolation
board.
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Figure 49: COM0 and COM1 – Location of the SW1 termination DIP-switches
The factory settings of the DIP-switches are indicated in the following figure.
Figure 50: SW1 termination DIP-switches
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RS485 GALVANIC ISOLATION BOARD SIGNALLING LEDS
NOTE
The standby bus voltage values for COM0 and COM1, connected to the RS485 galvanic
isolation board drivers are:
2.8 V between line A (D1) and 0 V
2.2 V between line B (D0) and 0 V
The RS485 galvanic isolation board is equipped with five LEDs:
•
Three LEDs indicate the presence of the various board power supply voltages.
LED
Colour
Function
L1
Green
Supply voltage detected for inverter side RS485 circuits (5 V)
L2
Green
Supply voltage detected for inverter (9 V)
L3
Green
Supply voltage detected for Master side RS485 circuits (5 V)
Table 27: Voltage indicator LEDs
•
Two LEDs for indicating fault conditions concerning the RS485 signals to the inverter and the
Master.
LED
Colour
Function
L5
Red
Inverter side RS485 signal faults
L6
Red
Master side RS485 signal faults
Table 28: FAULT indicator LEDs
A FAULT indication is only to be considered valid when the line is correctly terminated, i.e. the SW1 and
SW2 DIP-switches are set to ON.
Fault conditions may be due to one of the following:
•
Differential voltage between A (D1) and B (D0) below 450 mV.
•
A (D1) or B (D0) exceed the common mode voltage range [–7 V; 12 V].
•
A (D1) or B (D0) connected to a fixed voltage (this condition can only be detected when
communication has been established).
Figure 51: Position of LEDs and DIP-switches shows the signalling LEDs and the configuration DIPswitches.
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Figure 51: Position of LEDs and DIP-switches
In the event of serial communication problems, please consult section 11.
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7.4.3. COM2 Port
Serial port
Available with
BASIC
configuration
Available with
Data Logger
optional
Optoisolated port
Terminal and
contacts
COM2
No
Yes
Yes
DB9
on
Data
Logger board
Table 29: COM2 serial port connection
The galvanic isolation between the inverter's COM2 serial port and the external communication devices is
implemented via the Data Logger board. Terminators of the RS485 line of the COM2 serial port are
inserted on the Data Logger board.
The pin layout is as follows:
NO.
Name
Description
1
Not connected
2
Not connected
3
A (D1)
4
5
Line RS485 A (D1)
Not available in this application
0VM
Earth signal/isolated power supply
6
Not available in this application
7
Not connected
8
B (D0)
9
frame
Line RS485 B (D0)
Not connected
PE
Inverter earth
Table 30: DB9 connector
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DIP-switch
SW2-1, SW2-2
RS485 driver
power supply
SW2-3, SW2-4
COM2 port
terminators
INSTALLATION GUIDE
Function
RS485 driver power
supply
COM2 RS485
terminator
Factory setting
Both ON: RS485
internal insulated driver
power supply
Both ON: terminators
on
Notes
ON: RS485 internal insulated driver
power supply
OFF: RS485 external insulated
driver power supply from connector
pin 6
ON: 120 Ω resistor between A (D1)
and B (D0), 1500 Ω resistor
between A (D1) and +5 VM, 1500
Ω resistor between B (D0) and 0
VM
OFF:
no
termination
polarization resistor
and
Table 31: SW2 termination DIP-switches
NOTE
Incorrect setting of the terminators in a multidrop line may inhibit communication and lead to
communication difficulties particularly at high baud rates. If more than the two prescribed
terminators have been installed on a line some drivers may enter protection mode for thermal
overload thus blocking the communication of some devices.
To access the SW2 DIP-switches, remove the protective front cover on the converter and dismantle the
environmental sensors and field I/Os expansion board.
Figure 52: COM2 – Location of the SW2 termination DIP-switches
The factory settings of the DIP-switches are indicated in the following figure.
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Figure 53: SW2 termination DIP-switches
In the event of serial communication problems, please consult section 11.
7.4.4. Ethernet Port
Port
Available with BASIC
configuration
Available with Data
Logger optional
Terminal and contacts
Ethernet
No
Yes
RJ45 on Data Logger
board
Table 32: Ethernet port connection
The Data Logger board provides a standard RJ45 connector (IEEE 802) for 10/100 Ethernet connection
(100Base-TX, 10Base-T). The layout of the pins is the same as that found on each network board serving
the PC.
The pin layout is as follows:
NO.
Name
Description
1
TD+
Positive signal transmission line
2
TD-
Negative signal transmission line
3
RD+
Positive signal receiving line
4
Term
Terminated pair, not used
5
Term
Terminated pair, not used
6
RD-
Negative signal receiving line
7
Term
Terminated pair, not used
8
Term
Terminated pair, not used
Table 33: RJ45 connector
The Data Logger board can be connected via the Ethernet interface to an Ethernet control device with
Modbus/TCP Master (PC) protocol in one of the following ways:
•
through a LAN network (company or plant Ethernet network)
•
with direct point-to-point connection
The connection via a LAN network can be carried out in the same way as for a PC. Use a standard
connection cable to the Switch or Hub or a Straight-Through TIA/EIA.568-B cat. 5UTP cable (LAN patch
cable).
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NOTE
The interface board cannot be connected to old LAN networks made using Thin Ethernet
coaxial cables (10base2). Connection to this type of network is only possible using a Hub with
both Thin Ethernet (10base2) and 100Base-TX o 10Base-T connectors. The LAN uses a star
topology with each member element connected to the Hub or Switch by its own cable.
The following figure illustrates the layout of the pairs in a cat. 5 UTP cable and the standard colour
arrangement used for Straight-Through cables.
Figure 54: Layout of pairs in cat. 5 UTP cable
The direct point-to-point connections is carried out using a Cross-Over TIA/EIA-568-B cat. 5 cable. This
type of cable crosses over the pairs so that the TD+/TD- pair on one side corresponds to the RD+/RDpair on the other and vice versa.
The following table illustrates the colour matching on the connector pins for the Cross-Over cable and the
cross-over diagram of the two pairs used by the 100Base-TX o 10Base-T connection.
Figure 55: EIA/TIA 568 standard patch cable, UTP/STP cat.5
Figure 56: EIA/TIA 568 cross-over cable, UTP/STP cat.5
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NOTE
The maximum length of the UTP cat. 5 cable envisaged by Standard IEEE 802 (calculated on
the maximum transit time allowed by the protocol) is 100 m.
Use only and exclusively certified LAN cables, cat.5 UTP or higher, for Ethernet cabling.
Unless otherwise dictated by length or particular cabling needs, use commercial cables with
connectors.
In the event of Ethernet communication problems, please consult section 11.
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8. OPTIONALS
8.1.
Data Logger - Optional
The Data Logger board is available as an optional. This is a telecommunication unit which carries out the
functions of local production data storage, inverter-inverter or inverter-Smart String Box connection, all in
remote control connection with Santerno.
Figure 57: Data Logger board - Optional
NOTE
To be ordered at the same time as ordering the inverter.
The Data Logger board is installed on the converter control board which can be accessed by opening the
front cover.
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Figure 58: Location of the optional Data Logger board
Each Data Logger board is capable of monitoring up to a maximum of 40 devices which are multidrop
connected on the RS485 bus. On the bus the Data Logger operates acts as Modbus Master while the
other devices act as Modbus Slaves.
Should Santerno devices, such as SUNWAY M XS, SUNWAY M PLUS, SUNWAY TG, SUNWAY TG TE,
Smart String Box, etc. be multidrop connected, for user ease it is possible to use pre-set log
configurations. Using these settings, the maximum number of devices which can be monitored is 15 units.
It is always possible to increase the number of units monitored by reducing the number of variables
present in each log.
For further details, please refer to the Data Logger's Programming Guide.
Two serial communication ports and an Ethernet port are available on the Data Logger board.
•
COM1, COM2: RS485 Modbus/RTU serial links.
•
Ethernet.
Please refer to section 7.1.
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8.2.
INSTALLATION GUIDE
Earthed Option – Connection of the PV Field to Earth
Certain technologies used for PV modules require particular polarization of the field with regards to earth.
This polarization is called:
•
Positive Earthed, when the positive pole of the PV field must be earthed.
•
Negative Earthed, when the negative pole of the PV field must be earthed.
Two corresponding options are available for SUNWAY TG TE inverters, the Positive Earthed option and
the Negative Earthed option; both guarantee full compatibility with all PV modules available on the market.
All the live parts of SUNWAY TG TE inverters are floating in relation to the earth potential. By connecting
a floating PV generator to the inverter, the overall low-frequency system upstream from the isolation
transformer is consequently an IT type.
Please refer to section 6.10 for an overview of IT/non-IT distribution.
NOTE
To be ordered at the same time as ordering the inverter.
SUNWAY TG TE inverters modified for use of SunPower modules therefore have a positive field pole
connected to earth via a fuse. This device is NOT designed to protect the safety of persons but only to
protect the equipment from short circuits to earth of the negative pole which could cause overheating with
consequent fire risk.
Figure 59: Positive Earthed option – connection of the positive pole to earth
Figure 60: Negative option – connection of the negative pole to earth
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Installation of the Earthed option on SUNWAY TG TE inverters inhibits continual isolation control.
If the fuses blow, an isolation loss alarm is triggered which is in fact a loss of polarization.
Please refer to section 4.5.
DANGER
Earthed-pole systems are NON IT systems.
The earth polarization fuse is not a safety device against direct contacts.
If the earth polarization fuse blows due to a fault, the field configuration may be floating.
If the fault persists, the field configuration may be inverted in relation to the original
configuration.
Installation of the Earthed optional on SUNWAY TG TE involves certain system restrictions:
•
Each individual SUNWAY TG TE inverter with the Earthed optional must be connected to the grid
via its own isolation transformer.
•
Up to two SUNWAY TG TE inverters with the Earthed optional can be connected to the same LV/LV
or LV/MV transformer by using a double-wound transformer.
•
The node located on terminal XSP-1, under fuses 10F2 and 10F3 must be the only earthing point
for the system.
Do not earth any other point of the PV field.
Never earth the neutral (if present) on the inverter-side winding.
8.2.1. Additional Safety Warnings for the Earthed Option
The standard SUNWAY TG TE has a PV field connection separate from earth and incorporates a device
for controlling field loss of isolation to earth.
Installation of the Earthed option modifies the electrical status of the field conductors which could therefore
be at a hazardous potential regards earth. It is therefore necessary to adopt measures to guarantee
personnel safety.
DANGER
Earthed-pole systems are NON-IT systems.
The earth polarization fuse is not a safety device against direct contacts. The fuse is
NOT designed to safeguard human life but for operational purposes.
If the earth polarization fuse blows due to a fault, the field configuration may be floating.
If the fault persists, the field configuration may be inverted in relation to the original
configuration.
Example with Positive Earthed option:
In the event of inadvertent contact with the negative pole the fault current is limited only by the resistance
of the operator's body.
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Figure 61: Direct contact with live pole
A fault loop occurs powered by the PV field which closes via the fuse and the operator.
WARNING
The isolation to earth control of the PV field poles is NOT active.
In the event of inadvertent contact with the positive pole the potential difference the operator is subject to
is zero, hence the fault current is also zero.
Figure 62: Direct contact with voltage-free pole
Opening of the connection fuse modifies the electrical status of the PV field. Inadvertent contact with the
positive pole of the PV field is initially non-hazardous but becomes so once the fuse has blown.
In the event of a negative pole earth fault, the fuse is blown and opens.
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Figure 63: Dead short to earth and polarization fuse blowing
If the fault to earth of the negative pole persists, in the event of inadvertent contact with the positive pole
the potential difference the operator is subject to is equal to the PV field voltage. The fault current is not
zero.
Figure 64: Direct contact with pole which is no longer voltage-free
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8.3.
INSTALLATION GUIDE
GPRS Optional
A GPRS Router is available as an optional. It can be used only if the Data Logger optional is also
installed.
The router, connected to the Ethernet port on the Data Logger board, is housed inside the inverter. The
push-through router aerial is installed on the roof. For instructions on how to install the SIM card and
programme the Router, see the manual provided with the device.
Please refer to the inverter Electrical and Mechanical Diagram.
8.4.
Optional Anti-Condensation Heater
An anti-condensation heater is available as an optional.
The heater makes it possible to extend the bottom temperature range for inverter operation to -25°C. All
the technical data is provided in section 12.2.
Please refer to the inverter Electrical and Mechanical Diagram.
NOTE
To be ordered at the same time as ordering the inverter.
8.5.
DC Measurements
Current measurement sensors can be mounted on each DC input of the DC-Parallel. The measurements
are available in Modbus RTU protocols.
It is recommended that the Data Logger optional is also installed.
8.6.
AC Power Meter
A door-mounted AC power meter and its relative CTs and VTs are installed on the AC output of each
inverter. All the measurements are available via RS485 Modbus RTU communication and integrated with
Santerno Remote Control.
It is recommended that the Data Logger optional is also installed.
8.7.
Real-time Efficiency Measurements
A kit is available to measure conversion efficiency in real time. It can be used only if the Data Logger
optional is installed.
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9. DC-PARALLEL
Figure 65: DC-Parallel
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9.1.
INSTALLATION GUIDE
General Information on the Product
Medium- and high-power PV generator systems are made up of a high number of strings. To optimize the
connection topology and enhance the protection and monitoring systems, the parallel connection of the
strings is carried out on more than one level, usually a first parallel level and a second parallel level.
Elettronica Santerno offers a complete range of products for string parallel connections, String Boxes and
Smart String Boxes for creating the first parallel level and the DC-Parallel for creating the second parallel
level.
Figure 66: General electrical diagram of the PV field with two levels of parallel connections
The DC-Parallel cabinet is available in different sizes, depending on the number of connectable cables
and the maximum allowable current.
NOTE
The models described in this manual may be modified at the manufacturer's discretion both
from a technical point of view and in appearance, hence the illustrations provided herein are
not binding. The proportions between the various measurements are approximate and
therefore not absolute values.
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S000073
Figure 67: DC-Parallel with 10 inputs
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9.2.
INSTALLATION GUIDE
Product ID Code
The product ID code identifies the cabinet and is indicated on the relative nameplate. The nameplate also
holds all the necessary technical data (please refer to section 12.1).
The product code is made up of the following elements:
SUNWAY DC-Parallel
X2/X1
Y
P
S
X2/X1 Number of inputs
X2: maximum number of inputs on paralleled fuses
X1: maximum number of inputs on single fuses (not paralleled)
Y
Cabinet + base height
A:1800 mm + 150 mm
B:2000 mm + 100 mm
D:2000 mm + 150 mm
P
Depth
5=500 mm
6=600 mm
8=800 mm
S
Installation
S= Stand Alone
Examples:
SUNWAY DC-Parallel 4/8 - B6
SUNWAY DC-Parallel 4/10 - D8
SUNWAY DC-Parallel 8/16 - D8 - S
9.3.
Technical Specifications
•
Variable number of inputs depending on the model (from 4 – 20).
•
Protection provided by fuses installed on both poles of the PV field.
•
Blown fuse signalling contact.
•
Maximum flexibility thanks to the possibility of being able to parallel-connect two inputs.
•
Factory assembly with SUNWAY TG TE inverter.
•
Stand-Alone version also available.
All the technical data is provided in section 9.
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9.3.1. Fuse Installation
When designing large-scale PV systems it may be necessary to configure subfields of non-uniform power.
In this case, it is advisable to protect each inverter incoming line with different size fuses (please refer to
section 12.13.2).
The DC-Parallel cabinet can be equipped with a set of different size fuses. The fuses must be ordered
separately.
The Final Test Certificate indicates the exact configuration of the fuses installed for each input.
Figure 68: Example of fuse configuration provided in the Final Test Certificate
INCREASING THE CAPACITY OF THE INPUTS
If the current of a single input exceeds the maximum allowable size of the fuse, it is possible to parallelconnect the physical inputs in pairs and hence double the current capacity; however, the maximum
number of allowable inputs is reduced as a result.
To parallel-connect two inputs, use the special parallel bars provided in the kit supplied with the DCParallel. The individual inputs which are parallel-connected in pairs are defined Paralleled Inputs. See the
figure below.
Figure 69: Single and paralleled inputs
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9.3.2. Input Current Capacity
This heading deals with correct sizing of the fuses installed in the DC-Parallel.
The rated capacity values usually refer to an ambient temperature of 30 °C. For applications at higher
ambient temperature, a proper derating coefficient must be applied.
As a reference, refer to the following formula, that has always to be verified according to the fuse specs.
Single fuse on one DC input
125 − 𝑇𝑎𝑚𝑏_𝑚𝑎𝑥
𝐴1 = �
100
Double parallel-connected fuses on one DC input
𝐴2 = �
125 − 𝑇𝑎𝑚𝑏_𝑚𝑎𝑥
− 0.05
100
Where Tamb_max is the maximum ambient temperature when the DC-Parallel is operating.
EXAMPLE NO. 1:
Considering Tamb_max = 40 °C
•
A1= 92.2
•
The DC-Parallel with 4 non-paralleled inputs with a 200 A fuse installed can take a theoretical
maximum current of 184.3 A on each individual input. It is therefore recommended that 180 A on
each individual input be considered.
EXAMPLE NO. 2:
Considering Tamb_max = 50 °C
•
A1= 86.6
•
The DC-Parallel with 4 non-paralleled inputs with a 200 A fuse installed can take a theoretical
maximum current of 173.2 A on each individual input. It is therefore recommended that 170 A on
each individual input be considered.
EXAMPLE NO. 3:
Considering Tamb_max = 40 °C
•
A1= 92.2
•
The DC-Parallel with 8 non-paralleled inputs with a 200 A fuse installed can take a maximum
theoretical current of 184.3 A. It is therefore recommended that 180 A on each individual input be
considered.
•
If it is necessary to have an input which takes 240 A: in this case, the special parallel bars provided
in the kit supplied with the cabinet must be utilized to parallel-connect the inputs in pairs. The
number of available inputs is halved.
•
A2= 87.2
•
Using a 160 A fuse for each physical channel, a theoretical current capacity of 139.5 A is achieved.
It is therefore recommended that 135 A on each individual input be considered. The two parallel
inputs guarantee a capacity of 2x135 = 270 A which is suitable for the purpose.
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9.3.3. Cable Sizing
The connection cables between the String Boxes (normally located near the PV modules) and the DCParallel (located in the technical room) usually carry all the current from the group of strings which belong
to the individual String Boxes.
Being as the PV field is a current-limited generator, even in the event of a short circuit the current
delivered by this kind of generator cannot exceed the maximum sizing value. However, this concept is not
valid for the current flowing through the cables.
Take as an example a short circuit which occurs downstream from the String Box but upstream from the
connection to the DC-Parallel (see Figure 70: Short circuit located upstream from the DC-Parallel). When
this happens, the current from all the strings bar one is localized in the section of cable between the point
where the short circuit has occurred and the connection to the DC-Parallel.
DC PARALLEL
I1
I1
I2...+In
I2...+In
S0001 93
STRING BOX n°1
F
F
STRING BOX n°2
I2
F
I2
F
In
F
In
F
STRING BOX n°N
Figure 70: Short circuit located upstream from the DC-Parallel
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In PV systems, the current depends on radiation. Table 34: Trip time of fuses indicates the expected time
of fuse tripping depending on the short-circuit current flowing and the size of fuses.
Fuse
size
DC
current
In [A]
2 x In [A]
50
100
150
150
10
200
2
63
126
150
189
20
252
2
80
160
100
240
10
320
1
100
200
200
300
30
400
7
125
250
200
375
25
500
7
160
320
300
480
40
640
15
200 A
400
400
600
60
800
18
Trip time
[s]
DC
current
3 x In [A]
Trip time
[s]
DC
current
4 x In [A]
Trip time
[s]
Table 34: Trip time of fuses NH1-XL
Please refer to the DC-Parallel's Electrical and Mechanical Diagram to check the recommended section of
cables outgoing from the DC-Parallel to the inverter.
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9.4.
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STANDARD
Product Installation
9.4.1. Mechanical Assembly
The DC-Parallel is usually supplied already attached to the inverter it is to be connected to, hence only the
electrical connections to the String Boxes must be carried out.
Should it not be possible to fit the DC-Parallel onto the SUNWAY TG TE inverter, due to limited space
availability in the technical room, the DC-Parallel can be installed in a separate cabinet (please refer to
section 9.5)
A specific Stand-Alone DC-Parallel is also available to be integrated into Sunway Station LS power
stations.
Regardless of the type of installation selected, the DC-Parallel is always to be considered an integral part
of the inverter configuration. For information on handling, assembly and commissioning, please refer to
sections 4, 5 and 6.
All the necessary measures must be taken to ensure that the equipment is not exposed to direct sunlight.
These measures are to ensure that the internal temperature of the DC-Parallel remains within the
prescribed limits.
9.4.2. Electric Connection
WARNING
Be sure to operate in accordance with the indications provided in section 2.5.
The DC-Parallel input cables come from the String Boxes installed on the PV field. For each input,
electrical connections are made to copper bars suitably arranged for connecting two conductors per pole
(please refer to Figure 72: Connection of cables coming from the String Boxes: front view and Figure 73:
Connection of cables coming from the String Boxes: side view). There are no terminals.
The output cables from the DC-Parallel are connected to the SUNWAY TG TE inverter input.
For each output, electrical connections are made to copper bars which hold the positive and negative
poles of the PV field (please refer to Figure 74: DC-Parallel: side and front view). There are no terminals.
The equipment is powered by just one DC voltage source from the PV field. However, being as the
number of power supply sources is equal to the number of strings connected, make sure that all the
disconnect switches for the upstream strings are open if you wish to disconnect the cabinet.
Equipment connection is the Customer’s responsibility.
DANGER
NO MAIN INPUT DISCONNECT SWITCH IS PROVIDED.
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Figure 71: Composition of a SUNWAY TG TE inverter with a DC-Parallel
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S000072
Figure 72: Connection of cables coming from the String Boxes: front view
S000071
Figure 73: Connection of cables coming from the String Boxes: side view
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9.4.3. Wire Fastening
Housing of the cables coming from the String Boxes is usually on two levels, spaced depending on the
depth of the cabinet. This solution makes it possible to make the most of all the space available,
facilitating the job of fastening the wires to the specially arranged bars and ensuring correct clearance
between cables. In this way the two poles are completely separated thus preventing the risk of accidental
short-circuits.
S000074
Figure 74: DC-Parallel: side and front view
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9.5.
SUNWAY TG TE
STANDARD
Stand-Alone DC-Parallel
The Stand-Alone DC-Parallel can be installed in the technical room separately from the SUNWAY TG TE
inverter.
The Stand-Alone DC-Parallel can be installed with its back directly up against the cabin wall.
The Stand-Alone DC-Parallel can be positioned on the same wall as the SUNWAY TG TE (see Figure 75),
or on a different wall (see Figure 76). Whatever the installation position, always observe the clearance
values indicated in Table 75: Clearance Values for Stand-Alone DC-Parallel required for ensuring
adequate cooling of the compartment and operator access.
1
2
P001219-0
Figure 75: Positioning of the Stand-Alone DC-Parallel on the same wall as the SUNWAY TG TE
inverter
2
2
2
1
1
1
P001220-0
Figure 76: Positioning of the Stand-Alone DC-Parallel on a different wall to the SUNWAY TG TE
inverter
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INSTALLATION GUIDE
Product identification
1
SUNWAY TG TE
2
SUNWAY DC-Parallel
9.5.1. Stand-Alone DC-Parallel Electrical Connection
The figures below indicate how to connect the positive and negative pole power cables.
Figure 77: Stand-Alone DC-Parallel: Connection of positive pole power cable
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Figure 78: Stand-Alone DC-Parallel: Connection of negative pole power cable
To complete connection to the Stand-Alone DC-Parallel Table 35 provides indications on connecting the
signal cables:
•
DC-Parallel door microswitch
•
Fuse blowing microswitch chain
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Signal
INSTALLATION GUIDE
2
DC-Parallel
SUNWAY TG TE
Cable section [mm ]
XP 3, 4
XP 3, 4
1.5
XF 1, 2
X3 43, 44
1.5
door microswitch
fuse blowing
microswitches
Table 35: Connection of signal cables
Figure 79: Electric connection of the Stand-Alone DC-Parallel on the same wall as the SUNWAY TG
TE
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STANDARD
Figure 80: Electric connection of the Stand-Alone DC-Parallel on a different wall to the SUNWAY
TG TE
Product identification
1
SUNWAY TG TE
2
SUNWAY DC-Parallel
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INSTALLATION GUIDE
10. MAINTENANCE
Adequate maintenance ensures conversion performance and inverter reliability is maintained over time.
This heading describes all the activities required to keep machine parts which are subject to wear and
deterioration and/or components which are essential for guaranteeing safety and optimum performance in
good condition.
Access to products for the purpose of maintenance, modifications and management involves all persons
responsible for production and maintenance. It must be carried out in observance of the health and safety
regulations described in section 2.5.
The minimum maintenance interval is indicated in section 10.1.
Equipment installed in an environment where there is a high concentration of dust requires more frequent
maintenance than generally indicated.
The activities described may involve stopping the inverter. Once the maintenance procedure has been
completed restart the inverter by pressing the START button.
WARNING
Failure to observe the maintenance prescriptions may result in the product warranty
conditions being nullified.
NOTE
In the event of any fault, please contact the Elettronica Santerno SpA CUSTOMER SERVICE
for instructions on the necessary corrective action to be taken.
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10.1.
SUNWAY TG TE
STANDARD
Maintenance Sheet
Maintenance tasks
Read the stored data and Fault List
Minimum Frequency
Every month
Checking the external/internal conditions of the electrical cabinet
Every 6 months
Air filter maintenance
Every 6 months
Check the emergency stop button
Every 12 months
Checking the door microswitches
Every 12 months
Check gaskets
Every 12 months
Check locks and hinges
Every 12 months
Check the fans
Every 6 months
Check control and auxiliary voltages (110 V and 24 V)
Every 6 months
Check fuses and disconnect switches
Every 6 months
Check SPDs
Every 6 months
Check that cables and bars are securely tightened
Every 12 months
Calibrate environmental sensors
Every 12 months
Check the condition of nameplate and warning signs
Every 24 months
The frequency of scheduled maintenance may need to be increased depending on the location in which
the equipment is installed and the relative ambient conditions.
Table 36: Maintenance Sheet
DC- Parallel Maintenance
Minimum Frequency
Check the DC-Parallel cables and bars are securely tightened (if
installed)
Every 12 months
Checking the fuse status switches on the DC-Parallel (if installed)
Every 12 months
Table 37: DC- Parallel Maintenance Sheet
10.2.
Reading the Fault List Archives
To guarantee correct operation of the system all its components must be correctly matched up. Incorrect
operation leads to lower yields with a subsequent reduction in system profitability.
The inverter includes functions to warn the user of failures or faults affecting the system. Periodical checks
of system operation are in any case still necessary for the detection of minor operating faults which are not
associated with an alarm. The inverter’s alarm memory and the data stored in the Data Logger (if
installed) must be analysed at least once a month. To do this, proceed as described in the Programming
Guide.
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10.3.
INSTALLATION GUIDE
Checking the External/Internal Conditions of the Electrical Cabinet
To check the external/internal conditions of the electrical cabinet, proceed as follows:
OVERALL CONDITION OF THE CABINET:
•
Check the external condition of the cabinet.
•
Check the state of the insulating sheaths on the conductors.
•
Check that there are no signs of overheating on the power conductors (especially near the
connection points on the equipment).
•
Check that there are no signs of cable gnawing caused by rodents.
•
Check the state of all the signs/nameplates affixed to the equipment. Signs must always be in good
condition and legible.
GENERAL CABINET CLEANING
•
Check the interior of the cabinet for the build-up of dust, dirt, humidity and infiltration of water from
the outside.
•
Check that the ventilation ducts on the inductors and transformers are clear.
Should it be necessary to clean the SUNWAY TG TE, always adopt adequate measures. The electronic
section in the SUNWAY TG TE inverter series is well protected and hence does not require any
maintenance.
Carry out a visual inspection only and clean the printed circuit board with a soft brush or a vacuum cleaner
fitted with a soft cleaning tool. The cleaning accessories used must be antistatic tools in compliance with
ESD specifications.
Do not use heavy brushes or brushes with coarse bristles.
NEVER use compressed air for cleaning operations.
DANGER
Electric shock and burns hazard: coming into contact with live PV field or grid
components can lead to serious injury and even death!
NEVER work on the equipment unless it is switched off and disconnected from the
power supply.
DANGER
Electric shock and burns hazard: coming into contact with live PV field or grid
components can lead to serious injury and even death!
Do not touch any components other than those specifically indicated in the instructions.
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10.4.
SUNWAY TG TE
STANDARD
Air Filter Maintenance
DANGER
Electric shock and burns hazard: coming into contact with live PV field or grid
components can lead to serious injury and even death!
NEVER work on the equipment unless it is switched off and disconnected from the
power supply.
Inverters of the SUNWAY TG TE line are equipped with air intake grilles fitted with felt filters. Maintenance
activities consist of replacing the felt filters.
The front air intake grille can be removed by inserting a screwdriver in the point indicated (Figure 81: ) and
gently levering it out . The filter is held in a cavity in the air intake grille which is securely fastened to the
cabinet door.
All air intake grille filters should be replaced at the same time, both passive filters and those installed on
the fan units. The type of felt filters used must be suitable for the application.
For the relative technical specifications, please refer section 12. Replacement filters can be ordered from
Elettronica Santerno.
NOTE
In the event of any fault, please contact the CUSTOMER SERVICE of Elettronica Santerno
SpA for instructions on the necessary corrective action to be taken.
Figure 81: Filter replacement
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10.5.
INSTALLATION GUIDE
Checking the Emergency Stop Button
DANGER
Electric shock and burns hazard: coming into contact with live PV field or grid
components can lead to serious injury and even death!
Do not touch any components other than those specifically indicated in the instructions.
To check correct operation of the emergency stop switch, proceed as follows:
•
STOP the inverter.
•
Make sure that key-operated selector switch 18SA2 is turned to DISABLED.
•
Open the doors.
•
Make sure that the inverter is connected to both supply voltages (DC and AC) and that it is
powered.
•
Check that the external emergency stop button has not been activated.
•
Press the emergency stop button.
•
Check that the AC and DC control devices on the inverter are correctly opened.
•
Release the emergency stop button.
•
Close the AC and DC control devices on the inverter.
•
Close electrical cabinet doors.
•
Turn key-operated selector switch 18SA2 to ENABLED.
10.6.
Checking the Door Microswitches
DANGER
Electric shock and burns hazard: coming into contact with live PV field or grid
components can lead to serious injury and even death!
Do not touch any components other than those specifically indicated in the instructions.
To check correct operation of the door opening safety microswitches, proceed as follows:
•
STOP the inverter.
•
Make sure that the inverter is connected to both supply voltages (DC and AC) and that it is
powered.
•
Make sure that key-operated selector switch 18SA2 is turned to ENABLED.
•
Open the doors.
•
Check that the AC and DC control devices on the inverter are correctly opened.
•
Turn key-operated selector switch 18SA2 to DISABLED.
•
Close the AC and DC control devices on the inverter.
•
Close electrical cabinet doors.
•
Turn key-operated selector switch 18SA2 to ENABLED.
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10.7.
SUNWAY TG TE
STANDARD
Checking the Seals, Locks and Hinges
DANGER
Electric shock and burns hazard: coming into contact with live PV field or grid
components can lead to serious injury and even death!
NEVER work on the equipment unless it is switched off and disconnected from the
power supply.
To check the cabinet door seals, locks and hinges, proceed as follows:
•
Visually inspect the cabinet seals for any signs of cracking or damage. Any seals showing signs of
damage in the areas of door contact must be completely replaced.
•
It is suggested to use talc to stop the seals from sticking to the sheet metal of the cabinet over time.
•
Check correct operation of the inverter cabinet and compartment locks by locking and unlocking the
doors.
•
Check the door hinges operate smoothly.
•
Spray all movable parts and parts subject to wear with a water-free lubricant.
10.8.
Checking the Fans
DANGER
Electric shock and burns hazard: coming into contact with live PV field or grid
components can lead to serious injury and even death!
Do not touch any components other than those specifically indicated in the instructions.
Check operation and noisiness of all the fans. Depending on the size of the inverter, there may by fans on
the cabinet doors (please refer to section 12).
If it is necessary to open the doors to carry out this inspection, proceed as follows:
•
STOP the inverter.
•
Make sure that the inverter is connected to both supply voltages (DC and AC) and that it is
powered.
•
Make sure that key-operated selector switch 18SA2 is turned to DISABLED.
•
Open the doors.
The fans can be started up by gently heating the temperature sensor with a hairdryer.
At the end of inspection:
•
Close electrical cabinet doors.
•
Turn key-operated selector switch 18SA2 to ENABLED.
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10.9.
INSTALLATION GUIDE
Checking Control and Auxiliary Voltages (110 V and 24 V)
DANGER
Electric shock and burns hazard: coming into contact with live PV field or grid
components can lead to serious injury and even death!
Do not touch any components other than those specifically indicated in the instructions.
To check the cabinet control and auxiliary voltages, follow the instructions provided below.
The exact position of the control points can be seen on the Electrical and Mechanical Diagram.
To check the 24 Vdc power supply proceed as follows:
•
STOP the inverter.
•
Make sure that the inverter is connected to both supply voltages (DC and AC) and that it is
powered.
•
Make sure that key-operated selector switch 18SA2 is turned to DISABLED.
•
Open the doors.
•
Check the presence of 24 Vdc control voltage on the terminals referring to fuse holder 16F3 (see
Figure 82: Checking the 24 Vdc control power supply).
Figure 82: Checking the 24 Vdc control power supply
•
Open the PV generator DC switch (10QM1).
•
Check the presence of 24 Vdc control voltage on the terminals referring to fuse holder 16F3.
•
Close the PV generator DC switch (10QM1).
•
Open the electric grid AC switch (16QM2).
•
Check the presence of 24 Vdc control voltage on the terminals referring to fuse holder 16F3.
•
Close the electric grid AC switch (16QM2).
•
Close electrical cabinet doors.
•
Turn key-operated selector switch -operated selector switch to ENABLED.
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To check the 110 Vac power supply proceed as follows:
•
STOP the inverter.
•
Make sure that the inverter is connected to the AC supply voltage and that it is powered.
•
Make sure that key-operated selector switch 18SA2 is turned to DISABLED.
•
Open the doors.
•
Check the presence of 110 Vac voltage on the terminals referring to fuse holder 16F3 (see Figure
83: Checking the 110 Vac control power supply).
Figure 83: Checking the 110 Vac control power supply
•
Close electrical cabinet doors.
•
Turn key-operated selector switch 18SA2 to ENABLED.
10.10.
Checking the Relays, Fuses and Disconnect switches
DANGER
Electric shock and burns hazard: coming into contact with live PV field or grid
components can lead to serious injury and even death!
NEVER work on the equipment unless it is switched off and disconnected from the
power supply.
This section refers to relays, fuses and fuse holders/disconnect switches located inside the cabinet.
•
Visually inspect the installed fuses and the fixing springs on the fuse holders.
•
If necessary, grease the contact points on the holders.
•
Visually inspect the installed relays, checking that they fit well into their holders.
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10.11.
INSTALLATION GUIDE
Checking the SPDs
DANGER
Electric shock and burns hazard: coming into contact with live PV field or grid
components can lead to serious injury and even death!
NEVER work on the equipment unless it is switched off and disconnected from the
power supply.
Inspect the state of the SPDs (Surge Protective Devices) by checking the status of the button/slot on the
discharger.
The exact position of the SPDs can be seen on the Electrical and Mechanical Diagram.
Figure 84: Surge Protective Device
Button/slot Status
SPD Status
Button/slot with green indicator visible
SPD ready for use
Button/slot with red indicator visible
SPD faulty
Please refer Table 58: SPD technical specifications.
10.12.
Calibration of Environmental Sensors
SUNWAY TG TE inverters have special calibration parameters for each channel relative to the
environmental measures. Please refer to the Programming Guide.
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10.13.
SUNWAY TG TE
STANDARD
Checking the Tightening Torque
SUNWAY TG TE have special Belleville springs in all the internal tightening points for the copper bars and
power cables. Usually no maintenance on these points is required.
However, for all tightening works carried out in the field, in order to guarantee correct tightness of the
electrical contacts, periodical checking of the tightening torques is to be carried out over the equipment’s
life cycle.
•
Check the tightness of all the terminal clamps for connecting the power wiring and tighten if
necessary.
•
Pay particular attention to any colour variations or anomalies concerning the insulation and the
terminals.
Please refer to Table 54: Technical data for DC input cables, Table 55: Technical data for AC output
cables, to section 1.6 and the inverter's Electrical and Mechanical Diagram.
10.14.
Checking the Tightening Torques on the DC-Parallel
For all tightening works carried out in the field, in order to guarantee correct tightness of the electrical
contacts, periodical checking of the tightening torques is to be carried out over the equipment’s life cycle.
Check the tightness of all the terminal clamps for connecting the power wiring and tighten if necessary.
Pay particular attention to any colour variations or anomalies concerning the insulation and the terminals.
Please refer to Table 38: Tightening torques for DC-Parallel contacts and the DC-Parallel’s Electrical and
Mechanical Diagram.
Contact
Tightening torque
Screws provided
Connection of cables coming from the String
Boxes
32 N/m
M10
Table 38: Tightening torques for DC-Parallel contacts
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10.15.
INSTALLATION GUIDE
Checking the Fuse Status Switches on the DC-Parallel
In order to guarantee correct signalling in the event of fuse blowing suitably frequent checks must be
carried out during the equipment's operating life to make sure signalling microswitches are operating
correctly.
•
Make sure all the upstream String Box disconnect switches are open, this ensures no voltage is
applied to the fuses. Being as all the fuses are parallel connected downstream, if just one string box
is powered the same voltage is present in all the fuses.
•
Make sure that the inverter connected to the DC-Parallel is NOT running, i.e. that it is STOPPED.
•
Open the switch on the DC side of the converter.
•
Make sure that the inverter connected to the DC-Parallel is powered by the AC grid supply only and
that the display/keypad is turned on.
•
Make sure that the C273 parameter = Warning (Please refer to the Programming Guide).
•
Open the door of the DC-Parallel and remove the Lexan cover protecting the bottom of the fuse
holder where microswitch testing is to be carried out.
•
Extract each microswitch from its support.
•
Open the microswitch contact.
•
Check that the inverter display/keypad indicates “Warning”: W29 STR.FUSE KO.
Figure 85: Testing of DC-Parallel fuse status switch
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STANDARD
11. TROUBLESHOOTING
SUNWAY TG TE products are completely protected against short-circuits and overvoltage caused by
system failure or temporary phenomena. Furthermore, the control system performs complete selfdiagnosis operations to help personnel solve any problems which may occasionally arise. The modular
design of Elettronica Santerno inverters makes repair and/or reset operations quick and easy to perform.
This chapter indicates the most likely causes of the most common problems. The steps to be taken to
remove these causes are also described.
NOTE
If the problem persists, please contact the Elettronica Santerno SpA CUSTOMER SERVICE.
11.1.
Self-Diagnostics
The inverter’s self-diagnostics system detects and records most malfunctions and provides technical
support elements which are useful for problem solving.
The elements providing support for diagnostic functions are as follows:
•
Display/keypad, thanks to the messages which appear on the display and the indicator LEDs.
•
Indicator LEDs on the RS485 galvanic isolation board.
•
Indicator LEDs on the Data Logger board.
•
Indicator LEDs on the control board.
•
Mxxx measures relative to inverter functions, accessible from the display/keypad, in remote and/or
local remote control.
•
Inverter Fault List, accessible from the display/keypad, in remote and/or local remote control.
When a protection device trips or an alarm is given, the inverter stops and the ALARM LED comes on.
The corresponding alarm is displayed on the display/keypad.
When an alarm occurs, the inverter records it in the Alarms list together with the time of occurrence
(Supply Time and Operation Time), the status of the inverter and the value of certain sampling
measurements taken at the time of alarm tripping. The stored data is very useful in helping to determine
the cause which triggered the alarm and consequent removal of the alarm condition.
All the details relative to the alarms can be found in the Programming Guide.
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11.2.
INSTALLATION GUIDE
Malfunctioning at Start-up
11.2.1.
The Inverter has Stopped by Itself
•
Check the inverter Enabling/Disabling key-operated selector switch (12SA1).
•
Check the AC switch return contact MD18 (please refer to the Programming Guide).
•
Check the status of the digital inputs, M032 measure (please refer to the Programming Guide).
11.2.2.
The Inverter Does Not Start When the START Button is Pressed
•
Check that the PV OK LED is ON.
•
Check that the GRID OK LED is ON.
•
Check the status of the digital inputs, M032 measure (please refer to the Programming Guide).
•
Check that the C004 Remote Command parameter is not active (please refer to the Programming
Guide).
11.2.3.
The PV OK LED is OFF
•
Check if the inverter disconnect switch is closed.
•
Check the DC voltage value read by the inverter, Measures Menu (please refer to the Programming
Guide).
•
Check that the set P020 value is compatible with the configuration of the strings (please refer to the
Programming Guide).
11.2.4.
The GRID OK LED is OFF
•
Check if the grid AC switch is closed.
•
Check the AC voltage value read by the inverter, Measures Menu (please refer to the Programming
Guide).
•
Check the value of the C020 and C021 grid parameters (please refer to the Programming Guide).
•
Check the state of the external Interface Protection (if installed).
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11.2.5.
SUNWAY TG TE
STANDARD
Isolation Loss Detected
•
Check if the inverter disconnect switch is closed.
•
If the Earthed optional is not installed, with the DC disconnect switch closed, check if voltages are
balanced in relation to earth (max. allowable margin = 5%).
•
Open the DC disconnect switch.
•
With the DC disconnect switch open, check if voltages are balanced in relation to earth (max.
allowable margin = 10%) and that neither is near 0V.
•
If the Earthed optional is installed, check the state of fuses 10F2 and 10F3.
•
Check the status of the digital inputs, M032 measure (please refer to the Programming Guide).
11.3.
Malfunctioning During Operation
11.3.1.
Isolation Loss Detected
Please refer to section 11.2.
11.3.2.
The Inverter Does Not Produce the Power Expected
•
Check that the air inlet filters are clean.
•
Check that disconnect switches are closed on all String Boxes.
•
Check MPPT is enabled (MPPT LED = ON, please refer to the Programming Guide).
•
Check the P020 value (please refer to the Programming Guide).
•
In the event of overheating, the inverter protects itself by derating its output power. Check the
temperature measurements (please refer to the Programming Guide).
•
If a DC-Parallel is installed, check that all its input fuses are intact.
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11.4.
INSTALLATION GUIDE
Malfunction of Communication Ports
11.4.1.
Serial Communication Problems
•
Check that all the programming parameters are correct.
•
For malfunctions in serial communication affecting the COM0 and COM1 ports consult the selfdiagnosis indicator LEDs on the RS485 galvanic isolation board.
The RS485 galvanic isolation board is equipped with a total of five LEDs, three LEDs for signalling the
presence of various power supply voltages for the board itself and two LEDs for indicating fault conditions
concerning the RS485 signals. The FAULT indication can only be considered valid if the line has been
correctly terminated, i.e. DIP-switches SW1 and SW2 are both in the ON position.
LED
Colore
Funzione
L1
Green
Supply voltage [5 V] detected for inverter side RS485 circuits
L2
Green
Inverter supply voltage [9 V] detected
L3
Green
Supply voltage [5 V] detected for Master side RS485 circuits
L5
Red
Inverter side RS485 signal faults
L6
Red
COM0 or COM1 port side RS485 signals fault
Table 39: RS485 galvanic isolation board self-diagnosis LEDs
Fault conditions may be due to one of the following:
•
Differential voltage between A and B below 450 mV.
•
A or B exceed the common mode voltage range [-7 V; 12 V].
•
A or B connected to a fixed voltage (this condition can only be detected when communication has
been established).
Please refer to Figure 53: Position of LEDs and DIP-switches for the location of the indicator LEDs and the
configuration DIP-switches.
11.4.2.
Ethernet Communication Problems
•
Check that all the programming parameters are correct.
•
Check the Ethernet port self-diagnosis LEDs on the Data Logger board.
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11.5.
SUNWAY TG TE
STANDARD
Safety Devices Tripped
11.5.1.
AC Switch Tripped
•
Check if the emergency stop button has been pressed.
•
Check the status of the digital inputs, M032 measure (please refer to the Programming Guide), in
particular:
•
ο
Check the contacts of the key-operated selector switches on the inverter door.
ο
Check the status of the AC output switch feedback signal contacts.
When the switch is open RUN status is lost. Press START.
11.5.2.
DC Disconnection Switch Tripped
•
Check the polarity of the PV field poles.
•
Check if the emergency stop button has been pressed.
•
Check the status of the digital inputs, M032 measure (please refer to the Programming Guide), in
particular:
•
ο
Check the contacts of the key-operated selector switches on the inverter door.
ο
Check the status of the AC output switch feedback signal contacts.
When the switch is open RUN status is lost. Press START.
11.5.3.
SPDS Tripped or Fuses Blown
•
Make sure the DC disconnect switch is closed.
•
If the inverter is NOT equipped with the Earthed Optional: check that voltages are balanced in
relation to earth (max. allowable margin; 5% - 10%).
•
If the inverter is equipped with the Positive Earthed Optional: check that the positive pole voltage is
close to 0V.
•
If the inverter is equipped with the Negative Earthed Optional: check that the negative pole voltage
is close to 0V.
•
Open the DC disconnect switch.
•
If the inverter is NOT equipped with the Earthed Optional: check that voltages are balanced in
relation to earth (max. allowable margin; 5% - 10%).
•
If the inverter is equipped with the Positive Earthed Optional: check that the positive pole voltage is
close to 0V.
•
If the inverter is equipped with the Negative Earthed Optional: check that the negative pole voltage
is close to 0V.
•
If the inverter is equipped with the Earthed Optional check the earth polarization fuses. Please refer
to section 8.2.
11.5.4.
Blown Earth Fuses for Negative or Positive Earthed Options
•
Check for any earth faults on the PV field. Proceed as described in section 11.5.3.
•
Check for any earth faults downstream from the AC output.
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11.5.5.
INSTALLATION GUIDE
Replacing a Fuse in the DC-Parallel
To replace a fuse, proceed as follows:
•
Make sure that all the disconnect switches for the upstream strings are open: this is an essential
condition for ensuring that the fuses are free from voltage. Please remember that all fuses are
parallel-connected downstream, hence if just one string is powered the same voltage is present in
all the fuses.
•
Make sure that the inverter connected to the DC-Parallel is NOT running, i.e. that it is STOPPED.
•
Open the switch on the DC side of the converter
•
Open the door of the DC-Parallel and remove the Lexan cover protecting the bottom of the fuse
holder where the damaged fuse needs replacing.
•
Remove the auxiliary contact kit from the damaged fuse.
•
Remove the faulty fuse using the special insulated handle provided.
•
Install a new fuse using the special insulated handle provided.
•
Reconnect the auxiliary contact kit to the new fuse.
•
Replace the Lexan cover protecting the bottom of the fuse holder where the fuse has been
replaced.
Figure 86: Extracting the fuse: disconnection of microswitch and handle for removing the fuse
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Figure 87: Extracting the fuse: using the insulated handle for removing the fuse
Figure 88: Extracting the fuse: using the insulated handle for removing the fuse
Once the fuse has been replaced, restore all the conditions for inverter operation (please refer to section
6.11).
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11.6.
INSTALLATION GUIDE
General Principles in the Event of Failure
Access to the PV system components for the purpose of maintenance, modifications and management
involves all persons responsible for production and maintenance. It must be carried out in observance of
the health and safety regulations described in section 2.5.
11.6.1.
Fault Containment
The following prescriptions are of a general nature.
•
Place the equipment affected by the fault in safety conditions. This operation may involve stopping
and disconnecting all the up- and downstream devices. Please refer to section 2.4.
•
If the fault has occurred inside an inverter, press an emergency stop button to cut the inverter off
up- and downstream. Open the disconnect switches of all the string boxes so that the entire DC
input section is safe, including the DC-Parallel (if installed).
•
In multi-inverter systems it is usually sufficient to cut off the inverter affected by the fault both upand downstream so that the other inverters can remain in operation.
•
If the fault has occurred in one of the components downstream from the inverter (AC parallel
cabinet, external transformer, metering cabinet etc.) STOP all the machines and then press the
emergency stop button to cut off the inverter both up- and downstream.
•
If the fault has occurred in one of the components upstream from the inverter (DC-parallel, String
Box, etc.) STOP all the machines and then press the emergency stop button to cut off the inverter
both up- and downstream. Open the disconnect switches of all the String Boxes so that the entire
DC input section is safe, including the DC-Parallel (if installed).
•
If the fault has occurred in one of the String Boxes, open all the strings connected in input and open
the disconnect switches of all the String Boxes in order to place all the equipment in safety
conditions, including the cable output section.
•
Proceed with analysis of the causes and consequences of the fault.
NOTE
If necessary, please contact the Elettronica Santerno SpA CUSTOMER SERVICE.
11.6.2.
Fault Analysis
This section covers the main principles to be observed when analysing the causes and consequences of
faults.
A PV inverter usually operates as part of an overall system. All the components adopt various protective
measures therefore, in general, the consequences of a generic fault affecting an upstream component or
element does not extend to other components downstream.
However, the causes and the consequences of any faults which may arise need investigating on the plant
as a whole.
Fault investigation and analysis activities represent one of the most hazardous tasks assigned to
maintenance technicians. This manual only provides indications of an extremely generic nature
concerning the precautions which must be adopted when fault investigation and analysis activities need to
be carried out on live components.
In the event of a fault, before proceeding to resolve the problem, the following tasks must be performed to
evaluate:
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•
•
SUNWAY TG TE
STANDARD
The state of components and the system as a whole:
ο
Check the state of the contacts.
ο
Check the state of cables.
ο
Check the status of any interface protection installed in the system.
ο
Check the state of all protective elements installed in the system.
ο
Check the state of any auxiliary power supplies.
ο
Check the level of humidity present on system components.
If faults have occurred on each box, inverter and/or the system:
ο
Check for any earth faults on the DC side and the AC side.
ο
Make sure all prescriptions have been observed relative to the neutral connection or those
relative to field configuration (floating, Positive Earthed, Negative Earthed).
ο
Check the state of the SPDs and relative fuses.
Once all the aforementioned steps have been performed, proceed with evaluating:
•
The causes of faults.
•
The consequences of faults on the electrical, electromechanical and electronic components.
•
The steps to be taken to remove the cause of the fault.
Once all the aforementioned steps have been performed, proceed with rectifying the causes of the fault.
NOTE
If necessary, please contact the Elettronica Santerno SpA CUSTOMER SERVICE.
11.6.3.
DC-Parallel Fault Analysis (if present)
This section describes faults relative to one or more DC-Parallel fuses blowing. If a fuse blow, procedures
cannot be limited to simply replacing the fuse. Suitable analysis of the fault which caused the problem
must be also carried out.
Before replacing a blown fuse, the following tasks must be performed to evaluate:
•
If faults have occurred on each inverted and/or the system.
•
The causes of faults.
•
The consequences of faults on the electrical, electromechanical and electronic components.
•
The steps to be taken to remove the cause of the fault.
Once all the aforementioned steps have been performed, proceed with replacing the damaged fuse/s.
NOTE
If necessary, please contact the Elettronica Santerno SpA CUSTOMER SERVICE.
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SUNWAY TG TE
STANDARD
11.7.
INSTALLATION GUIDE
How to Contact the CUSTOMER SERVICE
Should it be necessary to contact the Elettronica Santerno SpA CUSTOMER SERVICE, please provide
the following data:
•
Equipment model
•
Serial Number
•
Date of commissioning
•
Order confirmation reference, if available
If the equipment in question is an inverter, it is advisable to recover the following information from the
memory:
•
Number of operating hours (please refer to the Programming Guide)
•
Fault list (please refer to the Programming Guide)
This operation can be carried out using the display/keypad or by using the Remote Sunway program with
local or remote connection.
Should it be necessary to send the equipment in for repair or to return the equipment, contact the
Elettronica Santerno SpA CUSTOMER SERVICE, to agree upon the terms.
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SUNWAY TG TE
STANDARD
12. TECHNICAL DATA
12.1.
Nameplate
Each nameplate indicates the product’s technical data and identification details.
•
Name of the product.
•
Part number assigned to the product by Elettronica Santerno.
•
Technical data (rated input/output voltage and current, rated power, etc.)
•
CE marking and indications of the relative reference Standards applied in the construction of the
equipment (CE is a registered collective trademark).
•
Product revision index.
•
Serial Number: identifies the product serial number
The nameplate measures 100 x 70 mm and is silver in colour.
12.1.1.
SUNWAY TG TE
SUNWAY TG TE nameplates are affixed to each individual inverter. They indicate all the data relative to
the inverter.
Example of a nameplate on a SUNWAY TG TE inverter:
Figure 89: SUNWAY TG TE nameplate
Rev. 04 - 03/07/2013
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SUNWAY TG TE
STANDARD
INSTALLATION GUIDE
Figure 90: Inverter revision index
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SUNWAY TG TE
STANDARD
Other examples of the nameplate affixed to SUNWAY TG TE inverters for various geographical locations:
Figure 91: Examples of SUNWAY TG TE nameplates
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SUNWAY TG TE
STANDARD
12.1.2.
INSTALLATION GUIDE
DC-Parallel
The nameplate for the DC-Parallel cabinet is affixed to each individual appliance and holds all the
equipment data.
Example of a DC-Parallel nameplate:
Figure 92: DC-Parallel Nameplate
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12.2.
SUNWAY TG TE
STANDARD
Installation Specifications
Installation specifications for SUNWAY TG TE
Operating ambient temperature
Minimum temperature: -10 °C
condensation heater)
(-25 °C with optional anti-
Maximum temperature: see section 12.3
3
Operating ambient humidity
3
From 5% – 95%, from 1 g/m – 25 g/m , with no
condensation or ice formation (category 3k3 in compliance
with EN50178)
Up to 1000 m ASL
Altitude
For higher altitudes, please refer to sections 12.3.3 and
12.3.4.
Installation site
Do not install the equipment where it is exposed to direct
sunlight or where it is exposed to conductive dust, corrosive
gases, vibrations, water spray or dripping. Do not install in
salty environments.
Degree of protection
IP20, IP44
Degree of pollution
Class 3S2 or higher, according to IEC 60721-3-3
Transformer
External LV/LV or LV/MV
Table 40: Installation specifications for SUNWAY TG TE
SUNWAY TG TE Model
Noise
emissions
[dBA]
SUNWAY TG 175 800V TE
77
SUNWAY TG 240 800V TE
77
SUNWAY TG 300 800V TE
77
SUNWAY TG 310 800V TE
77
SUNWAY TG 385 800V TE
79
SUNWAY TG 485 800V TE
79
SUNWAY TG 610 800V TE
76
SUNWAY TG 730 800V TE
76
SUNWAY TG 750 1000V TE
76
SUNWAY TG 760 1000V TE
78
Table 41: SUNWAY TG TE noise emissions
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SUNWAY TG TE
STANDARD
12.3.
INSTALLATION GUIDE
Electrical Specifications
SUNWAY TG TE (*)
U.M.
800V TE
1000V TE
Maximum DC input voltage
V
880 Vdc
1000 Vdc
Output frequency
Hz
50/60
Residual ripple voltage on
the PV field
<1%
Total distortion of grid
current
≤3%
Default: 1
Power factor
Uc Pulse withstanding
voltage
Programmable range: 0.9 lead/lag
4 kV: DC input
kV
4 kV: AC output
Table 42: SUNWAY TG TE electrical specifications
(*) The values in the table may be changed to suit special applications.
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INSTALLATION GUIDE
TG240 800V TE - 270 STD
TG300 800V TE - 270 STD
TG310 800V TE - 270 STD
TG385 800V TE - 270 STD
TG485 800V TE - 270 STD
TG610 800V TE - 270 STD
TG730 800V TE - 270 STD
SUNWAY TG 800V TE
TG175 800V TE - 270 STD
12.3.1.
SUNWAY TG TE
STANDARD
Rated DC input power
141 kW
188 kW
206 kW
246 kW
304 kW
386 kW
482 kW
578 kW
Max DC input current
(**)
304.5 A
408 A
446.6 A
532.8 A
657.6 A
835.6 A
1044 A
1253.4 A
PV field voltage range
415÷760V
415÷760V
415÷760V
476÷760V
415÷760V
415÷760V
415÷760V
415÷760V
Rated power
136.4 kVA @
40°C
182.7 kVA
@ 40°C
200 kVA @
40°C
238.6 kVA
@ 40°C
294.6 kVA
@ 40°C
374.3 kVA
@ 40°C
467.8 kVA
@ 50°C
561.2 kVA
@ 40°C
Rated grid voltage
270 V
270 V
270 V
270 V
270 V
270 V
270 V
270 V
Rated AC output
current
291.6 A
390.7 A
427.7 A
510.3 A
629.9 A
800.3 A
1000.4 A
1200 A
Max Efficiency
98.4 %
98.4 %
98.4 %
98.4 %
98.4 %
98.4 %
98.5 %
98.5 %
EU Efficiency
97.8 %
97.8 %
97.8 %
97.9 %
97.9 %
98.0 %
98.0 %
98.0 %
Noise emission @ 1m
75 dB(A)
75 dB(A)
75 dB(A)
75 dB(A)
75 dB(A)
75 dB(A)
75 dB(A)
75 dB(A)
Insulation voltage to
ground and between
input and output
2.5kV
2.5kV
2.5kV
2.5kV
2.5kV
2.5kV
2.5kV
2.5kV
SUNWAY (*)
DC INPUT
AC OUTPUT
EFFICIENCY
GENERAL DATA
Degree of protection
IP44
IP44
IP44
IP44
IP44
IP44
IP44
IP44
Fresh air consumption
2500 m3/h
2500 m3/h
3250 m3/h
3250 m3/h
4000 m3/h
5000 m3/h
6680 m3/h
6680 m3/h
Stop mode losses
20 W
20 W
20 W
20 W
20 W
20 W
45 W
45 W
Night losses
20 W
20 W
20 W
20 W
20 W
20 W
45 W
45 W
Auxiliary consumption
20 W
20 W
20 W
20 W
20 W
45 W
45 W
45 W
Fan losses
310 W
310 W
651 W
651 W
736 W
1506 W
2230 W
2230 W
LOSSES
Table 43: Technical data for SUNWAY TG 800V TE models – 270
(*) The values in the table may be changed to suit special applications. Auxiliary consumptions are not
considered when calculating the product efficiency.
(**) Maximum DC current that the inverter can accept as input current. However, a photovoltaic generator
dimensioned for higher current ratings may be connected to the equipment with no risk to damage the
inverter. If this is the case, the inverter will limit its power output so that the input current will not exceed
the maximum DC current value given in the table above.
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TG240 800V TE - 310 STD
TG300 800V TE - 310 STD
TG310 800V TE - 310 STD
TG385 800V TE - 310 STD
TG485 800V TE - 310 STD
INSTALLATION GUIDE
TG175 800V TE - 310 STD
SUNWAY TG TE
STANDARD
Rated DC input power
161.4 kW
216.3 kW
236.7 kW
282.5 kW
348.7 kW
443.0 kW
Max. DC input current (**)
304.5 A
408 A
446.6 A
532.8 A
657.6 A
835.6 A
PV field voltage range
476÷760V
476÷760V
476÷760V
476÷760V
476÷760V
476÷760V
Rated power
156.6 kVA @
40°C
209.8 kVA @
40°C
229.6 kVA @
40°C
274 kVA @
40°C
338.2 kVA @
40°C
430 kVA @
40°C
Rated grid voltage
310 V
310 V
310 V
310 V
310 V
310 V
Rated AC output current
291.6 A
390.7 A
427.7 A
510.3 A
629.9 A
800.3 A
Max Efficiency
98.5 %
98.5 %
98.5 %
98.5 %
98.5 %
98.5 %
EU Efficiency
98.0 %
98.0 %
98.0 %
98.0 %
98.0 %
98.0 %
Noise emission @ 1m
75 dB(A)
75 dB(A)
75 dB(A)
75 dB(A)
75 dB(A)
75 dB(A)
2.5kV
2.5kV
2.5kV
2.5kV
2.5kV
IP44
IP44
IP44
IP44
IP44
SUNWAY (*)
DC INPUT
AC OUTPUT
EFFICIENCY
Insulation voltage to ground
and between input and
2.5kV
output
GENERAL DATA
Degree of protection
IP44
Cooling system
Forced air
Forced air
3
Forced air
3
Forced air
3
Forced air
3
Forced air
2500 m /h
2500 m /h
3250 m /h
3250 m /h
4000 m /h
5000 m3/h
Stop mode losses
20 W
20 W
20 W
20 W
20 W
20 W
Night losses
20 W
20 W
20 W
20 W
20 W
20 W
Auxiliary consumption
20 W
20 W
20 W
20 W
20 W
45 W
Fan losses
310 W
310 W
651 W
651 W
736 W
1506 W
Fresh air consumption
3
LOSSES
Table 44: Technical data for SUNWAY TG 800V TE models - 310
(*) The values in the table may be changed to suit special applications. Auxiliary consumptions are not
considered when calculating the product efficiency.
(**) Maximum DC current that the inverter can accept as input current. However, a photovoltaic generator
dimensioned for higher current ratings may be connected to the equipment with no risk to damage the
inverter. If this is the case, the inverter will limit its power output so that the input current will not exceed
the maximum DC current value given in the table above.
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SUNWAY TG760 1000V TE - 380 STD
SUNWAY TG750 1000V TE - 380 STD
SUNWAY TG760 1000V TE - 360 STD
SUNWAY TG750 1000V TE - 360 STD
SUNWAY TG610 1000V TE - 360 STD
SUNWAY TG760 1000V TE - 340 STD
SUNWAY TG750 1000V TE - 340 STD
SUNWAY (*)
SUNWAY TG610 1000V TE - 340 STD
SUNWAY TG 1000V TE
SUNWAY TG750 1000V TE - 320 STD
12.3.2.
SUNWAY TG TE
STANDARD
DC INPUT
Rated DC input
power
685 kW
608 kW
728 kW
779 kW
644 kW
772 kW
824 kW
814 kW
871 kW
Max. DC input
current (**)
1253.4 A
1044 A
1253.4 A
1500 A
1044 A
1253.4 A
1500 A
1253.4 A
1500 A
PV field voltage
range
495÷820V
525÷820V
525÷820V
525÷820V
550÷820V
550÷820V
550÷820V
580÷820V
580÷820V
665 kVA
@ 40°C
(***)
590 kVA
@ 50°C
707 kVA
@ 40°C
(***)
756 kVA
@ 50°C
625 kVA
@ 50°C
749 kVA
@ 40°C
(***)
800 kVA
@ 50°C
790 kVA
@ 40°C
(***)
844 kVA
@ 50°C
320 V
340 V
340 V
340 V
360 V
360 V
360 V
380 V
380 V
1200 A
1000 A
1200 A
1283 A
1000 A
1200 A
1283 A
1200 A
1283 A
Max Efficiency
98.5 %
98.5 %
98.5 %
98.6 %
98.5 %
98.5 %
98.6 %
98.5 %
98.6 %
EU Efficiency
98.2 %
98.1 %
98.2 %
98.3 %
98.2 %
98.2 %
98.3 %
98.2 %
98.3 %
IP20
IP20
IP20
IP20
IP20
IP20
IP20
IP20
IP20
8000 m3/h
9600 m3/h
12000
m3/h
8000 m3/h
9600 m3/h
12000
m3/h
9600 m3/h
12000
m3/h
Stop mode losses 45 W
45 W
45 W
45 W
45 W
45 W
45 W
45 W
45 W
Night losses
45 W
45 W
45 W
45 W
45 W
45 W
45 W
45 W
45 W
Auxiliary
consumption
25 W
25 W
25 W
25 W
25 W
25 W
25 W
25 W
25 W
Fan losses
2095 W
1775 W
2095 W
2165 W
1775 W
2095 W
2165 W
2095 W
2165 W
AC OUTPUT
Rated power
Rated grid
voltage
Rated AC output
current
EFFICIENCY
GENERAL DATA
Degree of
protection
Fresh air
consumption
9600 m3/h
LOSSES
Table 45: Technical data for SUNWAY TG 1000V TE models
(*) The values in the table may be changed to suit special applications. Auxiliary consumptions are not
considered when calculating the product efficiency.
(**) Maximum DC current that the inverter can accept as input current. However, a photovoltaic generator
dimensioned for higher current ratings may be connected to the equipment with no risk to damage the
inverter. If this is the case, the inverter will limit its power output so that the input current will not exceed
the maximum DC current value given in the table above.
(***) Extended temperature range available on demand.
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SUNWAY TG TE
STANDARD
12.3.3.
INSTALLATION GUIDE
Maximum Voltage Derating
When equipment is installed at a high altitude, the maximum DC voltage, i.e. the maximum Voc value
applicable to the product in accordance with section 12.3 must be derated as indicated in the table:
Altitude [m]
Maximum DC voltage/max. Voc
0-2000
Unchanged
2001-3000
Do not exceed 846 V
Table 46: Maximum DC voltage based on altitude
If equipment is to be installed at over 3000 m, please contact Elettronica Santerno SpA.
12.3.4.
Rated Current Derating
If the ambient temperature exceeds the specified full-power temperature, the inverter limits its output
current in order to protect its internal components from overheating. Figure 93 shows the graph indicating
the maximum power delivered based on ambient temperatures (valid for equipment installed at sea level).
Figure 93: Temperature derating (at sea level)
Generally speaking, both temperature and altitude affect the continuous power output of the inverter.
To calculate the rated current, coefficient ‘Kt’ is assigned to temperature while coefficient ‘Ka’ is assigned
to altitude. Please refer to Figure 94 and Figure 95.
(The values in the figure may be changed to suit special applications.)
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SUNWAY TG TE
STANDARD
Figure 94: Coefficient Kt for temperature derating (at sea level)
Figure 95: Coefficient Ka for altitude derating
To calculate rated current derating the following method of calculation is used:
Calculation of coefficients
Condition
Calculation of the rated output
current
Ktot = Kt x Ka
If Ktot ≥ 1
Unchanged
Ktot = Kt x Ka
If Ktot < 1
Rated output current reduced by
a Ktot factor
Table 47: Calculation of the rated current reduction coefficient
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SUNWAY TG TE
STANDARD
INSTALLATION GUIDE
EXAMPLE NO. 1:
Installation of a SUNWAY TG 385 800V TE inverter with Pnom = 294.6 kVA:
altitude = 800 m
max. ambient temp. = 35 ° C
Ktot = Kt x Ka = 1.12 * 1.0 = 1.12, the rated power remains unchanged
altitude = 2500 m
max. ambient temp. = 35 ° C
Ktot = Kt x Ka = 1.12 * 0.85 = 0.95, the rated power is reduced to 280.5 kW
altitude = 2500 m
max. ambient temp. = 30 ° C
Ktot = Kt x Ka = 1.23 * 0.85 = 1.04, the rated power remains unchanged
EXAMPLE NO. 2:
Installation of a SUNWAY TG 610 1000V TE inverter with Pnom = 590 kVA
altitude = 800 m
max. ambient temp. = 40 ° C
Ktot = Kt x Ka = 1.23 * 1.0 = 1.23, the rated power remains unchanged
altitude = 1500 m
max. ambient temp. = 40 ° C
Ktot = Kt x Ka = 1.24 * 0.95 = 1.178, the rated power remains unchanged
altitude = 500 m
max. ambient temp. = 55 ° C
Ktot = Kt x Ka = 1 * 0.875 = 0.875, the power will be derated to 516.25 kVA.
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INSTALLATION GUIDE
12.3.5.
SUNWAY TG TE
STANDARD
P-Q Diagram
Prated
P
Preg
Qrated
Q
SUNWAY TG TE (*)
PF_Capability
Prated [kVA]
Preg [KW]
Qrated
[KVAR]
SUNWAY TG175 800V TE - 270 STD
0.9 lead/lag
136.4
122.8
59.5
SUNWAY TG175 800V TE - 310 STD
0.9 lead/lag
156.6
140.9
68.3
SUNWAY TG240 800V TE - 270 STD
0.9 lead/lag
182.7
164.4
79.6
SUNWAY TG300 800V TE - 270 STD
0.9 lead/lag
200
180.0
87.2
SUNWAY TG240 800V TE - 310 STD
0.9 lead/lag
209.8
188.8
91.4
SUNWAY TG300 800V TE - 310 STD
0.9 lead/lag
229.6
206.6
100.1
SUNWAY TG310 800V TE - 270 STD
0.9 lead/lag
238.6
214.7
104.0
SUNWAY TG310 800V TE - 310 STD
0.9 lead/lag
274
246.6
119.4
SUNWAY TG385 800V TE - 270 STD
0.9 lead/lag
294.6
265.1
128.4
SUNWAY TG385 800V TE - 310 STD
0.9 lead/lag
338.2
304.4
147.4
SUNWAY TG485 800V TE - 270 STD
0.9 lead/lag
374.3
336.9
163.2
SUNWAY TG485 800V TE - 310 STD
0.9 lead/lag
430
387.0
187.4
SUNWAY TG610 800V TE - 270 STD
0.9 lead/lag
467.8
421.0
203.9
SUNWAY TG730 800V TE - 270 STD
0.9 lead/lag
561.2
505.1
244.6
SUNWAY TG610 1000V TE - 340 STD
0.9 lead/lag
590
531.0
257.2
SUNWAY TG610 1000V TE - 360 STD
0.9 lead/lag
625
562.5
272.4
SUNWAY TG750 1000V TE - 320 STD
0.9 lead/lag
665
598.5
289.9
SUNWAY TG750 1000V TE - 340 STD
0.9 lead/lag
707
636.3
308.2
SUNWAY TG750 1000V TE - 360 STD
0.9 lead/lag
749
674.1
326.5
SUNWAY TG760 1000V TE - 340 STD
0.9 lead/lag
756
680.4
329.5
SUNWAY TG750 1000V TE - 380 STD
0.9 lead/lag
790
711.0
344.4
SUNWAY TG760 1000V TE - 360 STD
0.9 lead/lag
800
720.0
348.7
SUNWAY TG760 1000V TE - 380 STD
0.9 lead/lag
844
759.6
367.9
(*) The values in the table may be changed to suit special applications.
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SUNWAY TG TE
STANDARD
12.3.6.
INSTALLATION GUIDE
Short-Circuit Current Contribution
The maximum short-circuit time-current mask has been evaluated in a system always including a low
voltage transformer, as illustrated in the figures below:
Figure 96: Short circuit localization in the SUNWAY TG TE inverters
The following assumptions considered as general cases are taken into account:
-
Transformer short-circuit voltage: 6%
Transformer losses: 1%
Under the assumptions above, the short-circuit current is included in the dashed area in the graph below:
Figure 97: Maximum short-circuit time-current mask
Where the Y-axis is the rated output current and the X-axis indicates the mains cycles.
In the graph, a short-circuit occurs at time zero. The consequent maximum short-circuit current is
expected to be limited to 150% of the rated current for a duration of one half-cycle. Starting from the
second half-cycle, the maximum short circuit current is limited to 100% of the rated current, for a duration
depending on the LVRT mask.
If the LVRT is not enabled, the duration depends on the grid monitor relay settings. The minimum
duration can be as short as few mains cycles.
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INSTALLATION GUIDE
12.4.
SUNWAY TG TE
STANDARD
Inverter Views
SUNWAY TG TE
IP20
IP44
TG175 800V TE
TG240 800V TE
TG310 800V TE
TG385 800V TE
TG485 800V TE
TG610 800V TE
TG730 800V TE
TG750 800V TE
TG750 1000V TE
TG760 1000V TE
Table 48: Inverter views
Rev. 04 - 03/07/2013
149/171
SUNWAY TG TE
STANDARD
12.5.
INSTALLATION GUIDE
Installed Converter Module
SUNWAY TG TE Model
Converter
installed
SUNWAY TG 175 800V TE
SUNWAY 175
Converter layout
Type of
converter
Monolithic
converter
SUNWAY TG 240 800V TE
SUNWAY 240
SUNWAY TG 300 800V TE
SUNWAY 300
SUNWAY TG 310 800V TE
SUNWAY 310
Monolithic
converter
SUNWAY TG 385 800V TE
SUNWAY 385
SUNWAY TG 485 800V TE
SUNWAY 485
SUNWAY TG 610 800V TE
SUNWAY 610
SUNWAY TG 730 800V TE
SUNWAY 730
Monolithic
converter
Modular
converter
SUNWAY TG 750 1000V TE
SUNWAY 750
SUNWAY TG 760 1000V TE
SUNWAY 760
Table 49: Converter Module
150/171
Rev. 04 - 03/07/2013
INSTALLATION GUIDE
12.6.
SUNWAY TG TE
STANDARD
Inverter Ventilation System
Ventilation system absorption and flow rate data for SUNWAY TG TE inverters is provided below. The
technical data of the felt filter in accordance with EN 779 and EUROVENT classification is also provided.
Ventilation flow rate [m /h]
Ventilation system absorption
[W]
SUNWAY TG 175 800V TE
2500
310
SUNWAY TG 240 800V TE
2500
310
SUNWAY TG 300 800V TE
3250
651
SUNWAY TG 310 800V TE
3250
651
SUNWAY TG 385 800V TE
4000
736
SUNWAY TG 485 800V TE
5000
1506
6680 (IP44)
2230 (IP44)
8000 (IP20)
1775 (IP20)
6680 (IP44)
2230 (IP44)
8000 (IP20)
1775 (IP20)
SUNWAY TG 750 1000V TE
9600
2095
SUNWAY TG 760 1000V TE
12000
2165
SUNWAY TG TE Model
SUNWAY TG 610 800V TE
SUNWAY TG 730 800V TE
3
Table 50: SUNWAY TG TE ventilation technical data
Type of felt filter
EN 779
EUROVENT
G3
EU 3
Table 51: Classification of the felt filter installed in the air intake grilles
WARNING
The air ventilation outlet must not be obstructed in any way by walls or other objects
standing in front of it at a distance less than prescribed in section 12.10.
No ducting structure of any kind is allowed unless expressly authorized by Elettronica
Santerno.
Rev. 04 - 03/07/2013
151/171
SUNWAY TG TE
STANDARD
12.7.
INSTALLATION GUIDE
Dimensions and Weights
SUNWAY TG TE Model
Dimensions WxHxD [mm]
Weight [Kg]
SUNWAY TG 175 800V TE
1400x2270x600
640
SUNWAY TG 240 800V TE
1400x2270x600
730
SUNWAY TG 300 800V TE
1800x2270x800
970
SUNWAY TG 310 800V TE
1800x2270x800
970
SUNWAY TG 385 800V TE
1800x2270x800
1030
SUNWAY TG 485 800V TE
2600x2270x800
1470
SUNWAY TG 610 800V TE
2600x2475x800
1700
SUNWAY TG 730 800V TE
2600x2475x800
1800
SUNWAY TG 750 1000V TE
2600x2475x800
1800
SUNWAY TG 760 1000V TE
2600x2475x800
2000
Table 52: SUNWAY TG TE dimensions and weights
SUNWAY TG TE Model
Hoisting with cables from
above
Hoisting with forklift from
underneath
SUNWAY TG 175 800V TE
Yes
Yes
SUNWAY TG 240 800V TE
Yes
Yes
SUNWAY TG 300 800V TE
Yes
Yes
SUNWAY TG 310 800V TE
Yes
Yes
SUNWAY TG 385 800V TE
Yes
Yes
SUNWAY TG 485 800V TE
Yes
Yes
SUNWAY TG 610 800V TE
Yes
Yes
SUNWAY TG 730 800V TE
Yes
Yes
SUNWAY TG 750 1000V TE
Yes
Yes
SUNWAY TG 760 1000V TE
Yes
Yes
Table 53: Handling methods
152/171
Rev. 04 - 03/07/2013
INSTALLATION GUIDE
12.8.
12.8.1.
SUNWAY TG TE
STANDARD
Connection of Power and Signal Cables
DC Connection - Input Cables
Max.
cable
section
[mm²]
Screws
provided
Tightening
torque
[Nm]
Max. lug
width
[mm]
SUNWAY TG TE Model
Terminal
No. of
cables
per pole
SUNWAY TG 175 800V TE
X2
4
240
M10
50
39
SUNWAY TG 240 800V TE
X2
4
240
M10
50
39
SUNWAY TG 300 800V TE
X2
4
240
M12
85
39
SUNWAY TG 310 800V TE
X2
4
240
M12
85
39
SUNWAY TG 385 800V TE
X2
4
240
M12
85
39
SUNWAY TG 485 800V TE
X2
4
240
M12
85
39
4
240
M12
85
39
SUNWAY TG 610 800V TE
SUNWAY TG 730 800V TE
SUNWAY TG 750 1000V TE
SUNWAY TG 760 1000V TE
X2
8
150
Table 54: Technical data for DC input cables
Rev. 04 - 03/07/2013
153/171
SUNWAY TG TE
STANDARD
12.8.2.
INSTALLATION GUIDE
AC Connection - Output Cables
Terminal
No. of
cables
per pole
Max.
cable
section
[mm²]
Screws
provided
Tightening
torque
[Nm]
Max. lug
width
[mm]
SUNWAY TG 175 800V TE
X1
2
240
M10
50
39
SUNWAY TG 240 800V TE
X1
4
240
M12
85
39
SUNWAY TG 300 800V TE
X1
4
240
M12
85
39
SUNWAY TG 310 800V TE
X1
4
240
M12
85
39
SUNWAY TG 385 800V TE
X1
4
240
M12
85
39
SUNWAY TG 485 800V TE
X1
4
240
M12
85
39
SUNWAY TG 610 800V TE
X1
4
240
M12
85
39
SUNWAY TG 730 800V TE
X1
4
240
M12
85
39
SUNWAY TG 750 1000V TE
X1
4
240
M12
85
39
SUNWAY TG 760 1000V TE
X1
4
240
M12
85
39
SUNWAY TG TE Model
Table 55: Technical data for AC output cables
154/171
Rev. 04 - 03/07/2013
INSTALLATION GUIDE
12.8.3.
SUNWAY TG TE
STANDARD
Connection of Earth Cables
No. of cables per
connection
Screws provided
Minimum conductor
section
SUNWAY TG 175 800V TE
6
M10
35
SUNWAY TG 240 800V TE
6
M10
35
SUNWAY TG 300 800V TE
4
M12
35
SUNWAY TG 310 800V TE
4
M12
35
SUNWAY TG 385 800V TE
4
M12
35
SUNWAY TG 485 800V TE
4
M12
50
SUNWAY TG 610 800V TE
5
M12
70
SUNWAY TG 730 800V TE
5
M12
70
SUNWAY TG 750 1000V TE
5
M12
70
SUNWAY TG 760 1000V TE
5
M12
70
SUNWAY TG TE Model
Table 56: Technical data for earth cables
In observance of safety regulations, never use earth connection cables which have a smaller section than
indicated in the table above.
Rev. 04 - 03/07/2013
155/171
SUNWAY TG TE
STANDARD
12.8.4.
INSTALLATION GUIDE
Connection of Signal and Auxiliary Power Supply Cables
SUNWAY TG TE Model
Terminal
Min. cable section
2
[mm ]
Max. cable section
[mm²]
ALL
X3
0.5
2.5
ALL
X4
0.5
2.5
ALL
X7
0.5
6
Table 57: Technical data for signal cables
12.9.
SPD
Technical specifications for SPDs are provided in the table below.
Technical Specifications
Rated voltage of system
1000 V
Maximum voltage of system
1120 V
Back-up power supply
4A
Rated discharge current
20 kA
Response time
25 ns
Residual current
< 1 mA
Configuration
Y connection of three SPDs to varistor
UP level of protection ( L-L / L-PE )
3.8 kV
L tightening torque
2.8 Nm
Remote signal contact
Type
1 NO/NC
Minimum range
12Vdc - 10 mA
Maximum range
250 Vac - 1 A
2
Cable section
1.5 [mm ]
Ambient conditions
Operating temperature
-40 ... +80
Maximum altitude
2000
General specifications
Removable cartridges
Yes
UL94 Fire resistance
V0
Table 58: SPD technical specifications
156/171
Rev. 04 - 03/07/2013
INSTALLATION GUIDE
12.10.
SUNWAY TG TE
STANDARD
Technical Room
The inverters can be positioned with their backs right up against the cabinet wall, as long as care is taken
not to obstruct any air vents in the cabinet itself.
SUNWAY TG TE Model
Air
Air
ventilation
cooling
unit with
towers
front filter
Grilles
with
front
filters
Grilles
with
side
filters
Clearance values [mm]
Front
RH/LH
side
Ceiling
Back
SUNWAY TG 175 800V TE
YES
No
YES
No
800
-
200
-
SUNWAY TG 240 800V TE
YES
No
YES
No
800
-
200
-
SUNWAY TG 300 800V TE
YES
YES
YES
No
800
-
200
-
SUNWAY TG 310 800V TE
YES
YES
YES
No
800
-
200
-
SUNWAY TG 385 800V TE
YES
YES
YES
No
800
-
200
-
SUNWAY TG 485 800V TE
YES
YES
YES
No
800
-
200 (IP44)
400 (IP20)
-
SUNWAY TG 610 800V TE
YES
YES
YES
YES
800
600
400
-
SUNWAY TG 730 800V TE
YES
YES
YES
YES
800
600
400
-
SUNWAY TG 750 1000V TE
YES
YES
YES
No
800
600
400
-
SUNWAY TG 760 1000V TE
YES
YES
YES
No
800
600
400
600
Table 59: Clearance values for SUNWAY TG TE
The clearance values may be reduced only if explicitly agreed upon with Elettronica Santerno, depending
on the product application conditions and on the presence of air-conditioning systems in the technical
room.
NOTE
If necessary, please contact the Elettronica Santerno SpA CUSTOMER SERVICE.
12.10.1.
Air Exchange and Flow Rate
Inverters dissipate heat into the surrounding environment which must be removed.
The technical room must be equipped with an adequate system for removing excess heat (air conditioning
or forced ventilation). The system must be able to keep the air temperature below the full-power
temperature of the inverter.
Calculate heat dissipation at around 3% of the rated power for each inverter installed.
Pdmax = 3% Pnom AC
For example:
System made up of:
No. 2 SUNWAY TG 385 800V TE
Pnom AC = 296 kW
Consider dissipation equal to 2 x 3% x 296 kW = 17.76 kW
Rev. 04 - 03/07/2013
157/171
SUNWAY TG TE
STANDARD
12.11.
INSTALLATION GUIDE
Control Board
2
Screw terminal board with 6 separate removable sections suitable for 0.08 - 1.5 mm (AWG 28-16) cables.
No.
Name
1
CMA
2
REF
Description
I/O Features
DIP-switch
0V for main reference (connected to
control 0V).
0V control board
Analogue input which can be configured
as a voltage input or current input
Vfs = ±10 V
Rin: 50 kΩ
Resolution: 12 bits
SW1-1: Off
0 (4) – 20 mA
Rin = 250 Ω
Resolution: 11 bits
SW1-1: On
Analogue input available for the Power
Control function if configured as a voltage
input.
3
-10VR
Negative -10 V power supply output
-10 V
Imax: 10 mA
4
+10VR
Positive +10 V power supply output
+10V
Imax: 10 mA
5
AIN1+
Analogue grid voltage input.
Vfs = ±10 V
Rin: 50 kΩ
Resolution: 12 bits
SW1-2: Off
6
AIN1-
n.o.
SW1-2: On
7
AIN2+
Vfs = ±10 V
Rin: 50 kΩ
Resolution: 12 bits
SW1-3: Off
SW1-4.5: Off
n.o.
SW1-3: On
SW1-4.5: Off
Vout = ±10 V
Ioutmax = 5 mA
Resolution: 11 bits
SW2-1: On
SW2-2: Off
0 (4) – 20 mA
Voutmax = 10 V
Resolution: 10 bits
SW2-1: Off
SW2-2: On
Vout = ±10 V
Ioutmax = 5 mA
Resolution: 11 bits
SW2-3: On
SW2-4: Off
0 (4) – 20 mA
Voutmax = 10 V
Resolution: 10 bits
SW2-3: Off
SW2-4: On
Analogue grid voltage input.
8
AIN2-
9
CMA
10
AO1
0V for auxiliary inputs (connected to
control 0V).
Delivered active power fed back to AO1
analogue output.
Please refer to the Programming Guide.
11
AO2
Field voltage fed back to AO2 analogue
output.
Please refer to the Programming Guide.
158/171
Rev. 04 - 03/07/2013
INSTALLATION GUIDE
No.
12
Name
AO3
SUNWAY TG TE
STANDARD
Description
Field current fed back to AO3 analogue
output.
Please refer to the Programming Guide.
13
CMA
I/O Features
DIP-switch
Vout = ±10 V
Ioutmax = 5 mA
Resolution: 11 bits
SW2-5: On
SW2-6: Off
0 (4) – 20 mA
Voutmax = 10 V
Resolution: 10 bits
SW2-5: Off
W2-6: On
0V for analogue outputs (connected to
control 0V).
Table 60: Terminals 1 - 13 available on the control board
No.
Name
Description
I/O Features
DIP-switch
Digital input
14
MDI1
15
MDI2
(ENABLE)
Please refer to the Electrical and
Mechanical diagram
Input active: inverter enabled to run
Input not active: inverter disabled
Digital input
16
MDI3
Please refer to the Electrical and
Mechanical diagram
Digital input
17
MDI4
Please refer to the Electrical and
Mechanical diagram
Digital input
18
MDI5
Please refer to the Electrical and
Mechanical diagram
Optoisolated digital inputs
24 Vdc: positive logic
(PNP type) active with
high signal in relation to
CMD (terminal 22).
Digital input
19
MDI6
Please refer to the Electrical and
Mechanical diagram
Digital input
20
MDI7
21
MDI8
22
CMD
Please refer to the Electrical and
Mechanical diagram
Digital input
Used for carrier phase synchronization
0V digital input isolated in relation to
control 0V
Used for carrier phase synchronization
23
+24V
Auxiliary power supply output for digital
inputs.
Used for carrier phase synchronization
24
+VMDO1
Power supply input for MDO1 output
Used for carrier phase synchronization
Rev. 04 - 03/07/2013
Optoisolated 0V digital
inputs
+24 V±15%
max: 100 mA
Protected by resettable
fuse
20 ÷ 48 Vdc
Isc = 10 mA + output
current (max 60 mA)
159/171
SUNWAY TG TE
STANDARD
No.
Name
25
MDO1
/FOUT
26
CMDO1
INSTALLATION GUIDE
Description
Multifunction digital output 1: frequency
output
Used for carrier phase synchronization
0V multifunction digital output 1
Used for carrier phase synchronization
Digital output
27
MDO2
28
CMDO2
29
MDO3-NC
30
MDO3-C
Please refer to the Electrical and
Mechanical diagram
MDO2 common digital output
I/O Features
DIP-switch
Push-pull optoisolated
digital output
Iout = 50 mA max
fout max 100 kHz.
MDO1 common power
supply and output
Isolated digital output;
open collector type;
Vomax = 48 V
Iomax = 50 mA
MDO2 common digital
output
Digital relay output 3 (NC contact)
Please refer to the Electrical and
Mechanical diagram
Digital relay output 3 (common)
Please refer to the Electrical and
Mechanical diagram
Digital relay output 3 (NO contact)
31
32
33
34
MDO3-NO
MDO4-NC
MDO4-C
MDO4-NO
Please refer to the Electrical and
Mechanical diagram
Multifunction digital relay output 4 (NC
contact)
Please refer to the Electrical and
Mechanical diagram
Multifunction digital relay output 4
(common)
Switch contact: with low
level logic the common
terminal is closed with
NC terminal, with high
level logic common
terminal is closed with
NO
Vomax = 250 Vac
Iomax = 3 A
Vomax = 30 Vdc
Iomax = 3 A
Please refer to the Electrical and
Mechanical diagram
Multifunction digital relay output 4 (NO
contact)
Please refer to the Electrical and
Mechanical diagram
Table 61: Terminals 14 - 34 available on the control board
160/171
Rev. 04 - 03/07/2013
INSTALLATION GUIDE
12.12.
SUNWAY TG TE
STANDARD
Environmental Sensors and Field I/Os Expansion Board
12.12.1.
List of Signals to Terminal Board
2
Screw terminal board with 12 separate removable sections suitable for 0.08 - 1.5 mm (AWG 28-16)
cables.
No.
Name
Description
I/O Features
NOT USED – DO NOT
CONNECT
1-2
3
CMA
Analogue inputs 0 V (common
with control 0V)
0V control board
4-5
+15VM15VM
Stabilized bipolar power supply
output protected against shortcircuit by external sensors
+15 V
-15 V
Iout max: 100 mA
6
CMA
Analogue inputs 0 V (common
with control 0V)
0V control board
726
NOT USED – DO NOT
CONNECT
Vfs = 10 V
Rin = 30 kΩ
SW1.3 = ON
SW1.1-2-4 = OFF
Vfs = 100 Mv
Rin = 1 MΩ
SW1.4 = ON
SW1.1-2-3 = OFF
Ifs = 20 mA
Rin = 124.5 Ω
SW1.2 = ON
SW1.1-3-4 = OFF
Thermistor 1 temperature
measure
PT100
Temperature measure
SW1.1-4 = ON
SW1.2-3 = OFF
Analogue inputs 0V for XAIN8
feedback
0V control board
ENVIRONMENTAL MEASURE 1
auxiliary analogue input
27
28
XAIN8/T1+
CMA/T1-
Vfs = 10 V
Rin = 30 kΩ
SW1.7 = ON
SW1.5-6-8 = OFF
Vfs = 100 mV
Rin = 1 MΩ
SW1.8 = ON
SW1.5-6-7 = OFF
Ifs = 20 mA
Rin = 124.5 Ω
SW1.6 = ON
SW1.5-7-8 = OFF
Thermistor 2 temperature
measure
PT100
Temperature measure
SW1.5-8 = ON
Analogue inputs 0V for XAIN9
feedback
Vfs = 10 V
Rin = 30 kΩ
SW2.3 = ON
SW2.1-2-4 = OFF
ENVIRONMENTAL MEASURE 2
auxiliary analogue input
29
30
DIP-switch
XAIN9/T2+
CMA/T2-
Rev. 04 - 03/07/2013
SW1.6-7 = OFF
161/171
SUNWAY TG TE
STANDARD
No.
Name
INSTALLATION GUIDE
Description
32
SW2.4 = ON
SW2.1-2-3 = OFF
Ifs = 20 mA
Rin = 124.5 Ω
SW2.2 = ON
SW2.1-3-4 = OFF
Thermistor 3 temperature
measure
PT100
Temperature measure
SW2.1-4 = ON
SW2.2-3 = OFF
Analogue inputs 0V for XAIN10
feedback
0V control board
XAIN10/T3+
CMA/T3-
Vfs = 10 V
Rin = 30 kΩ
SW2.7 = ON
SW2.5-6-8 = OFF
Vfs = 100 mV
Rin = 1 MΩ
SW2.8 = ON
SW2.5-6-7 = OFF
Ifs = 20 mA
Rin = 124.5 Ω
SW2.6 = ON
SW2.5-7-8 = OFF
Thermistor 4 temperature
measure
PT100
Temperature measure
SW2.5-8 = ON
SW2.6-7 = OFF
ENVIRONMENTAL MEASURE 4
auxiliary analogue input
33
XAIN11/T4+
34
CMA/T4-
Analogue inputs 0V for XAIN11
feedback
0V control board
35
XAIN12
Auxiliary analogue input 10 V f.s.
ENVIRONMENTAL MEASURE 5
Fs = 10 V
Rin= 30 kΩ
36
CMA
Analogue inputs 0V for XAIN12
feedback
0V control board
37
XAIN13
Auxiliary analogue input 10 V f.s.
ENVIRONMENTAL MEASURE 6
Fs = 10 V
Rin= 30 kΩ
38
CMA
Analogue inputs 0V for XAIN13
feedback
0V control board
39
XMDI1
Multifunction auxiliary digital input
1
Used for controlling the
output power by a device
outside the inverter.
40
XMDI2
Multifunction auxiliary digital input
2
Used for controlling the
output power by a device
outside the inverter.
41
XMDI3
Multifunction auxiliary digital input
3
Energy delivered from
external meter
42
XMDI4
Multifunction auxiliary digital input
4
Energy absorbed by
external meter
162/171
DIP-switch
Vfs = 100 mV
Rin = 1 MΩ
ENVIRONMENTAL MEASURE 3
auxiliary analogue input
31
I/O Features
Rev. 04 - 03/07/2013
INSTALLATION GUIDE
SUNWAY TG TE
STANDARD
No.
Name
Description
43
CMD
0V digital input isolated in relation
to control 0V
Common
44
+24V
Auxiliary power supply output for
optoisolated multifunction digital
inputs.
+24 V
45
XMDI5
Multifunction auxiliary digital input
5
Used for controlling the
output power by a device
outside the inverter.
46
XMDI6
NOT USED – DO NOT
CONNECT
47
XMDI7
Multifunction auxiliary digital input
7
4862
I/O Features
DIP-switch
Used for controlling the
output power by a device
outside the inverter.
NOT USED – DO NOT
CONNECT
Table 62: Terminals available on the environmental sensors and field I/O board
Rev. 04 - 03/07/2013
163/171
SUNWAY TG TE
STANDARD
12.12.2.
INSTALLATION GUIDE
Electrical Specifications
ANALOGUE INPUTS
Rating
Analogue inputs configured in 0-10 V mode
Min
Typ
Max
Unit
Input impedance
40
kΩ
Cumulative offset and gain error in relation to full scale value
0.5
%
Temperature coefficient of the offset and gain error
200
ppm/°C
Digital resolution
12
bits
Voltage LSB value
2.44
Permanent overload on the inputs without causing damage
-30
Input filter cut-off frequency (low-pass first order filter)
Sampling period (depending on the application SW in use)
mV/LSB
+30
1
V
Hz
10
1000
ms
Table 63: Analogue inputs configured in 0 - 10 V mode
Rating
Analogue inputs configured in 0-20 mA mode
Min
Typ
Max
Unit
Input impedance
40
kΩ
Cumulative offset and gain error in relation to full scale value
0.5
%
Temperature coefficient of the offset and gain error
200
ppm/°C
Digital resolution
12
bits
Voltage LSB value
2.44
Permanent overload on the inputs without causing damage
-3.7
Input filter cut-off frequency (low-pass first order filter)
Sampling period (depending on the application SW in use)
mV/LSB
+30
1
10
V
Hz
1000
ms
Table 64: Analogue inputs configured in 0 - 20 mA mode
164/171
Rev. 04 - 03/07/2013
INSTALLATION GUIDE
SUNWAY TG TE
STANDARD
Rating
Analogue inputs configured in 0-100 mV mode
Min
Input impedance
Typ
Max
1
Cumulative offset and gain error in relation to full scale value
Unit
MΩ
0.2
%
Temperature coefficient of the offset and gain error
50
ppm/°C
Digital resolution
12
bits
Voltage LSB value
24.7
Permanent overload on the inputs without causing damage
-30
Input filter cut-off frequency (low-pass first order filter)
Sampling period (depending on the application SW in use)
µV/LSB
+30
1
V
Hz
10
1000
ms
Table 65: Analogue inputs configured in 0 - 100 mV mode
Rating
Analogue inputs configured as temperature measurement
with PT100
Min
Type of probe
2-wire connection PT100 thermistor
Measurement range
-50
PT100 element polarization current
Typ
Max
125
0.67
Unit
°C
mA
Temperature measurement coefficient
50
ppm/°C
Digital resolution
12
bits
1.5
°C
Maximum cumulative measurement error over -40 °C ÷ +50 °C
temperature range
0.5
Mean value of temperature LSB (SW linearization function)
Permanent overload on the inputs without causing damage
0.098
-10
Input filter cut-off frequency (low-pass first order filter)
Sampling period (depending on the application SW in use)
°C/LSB
+10
1
10
V
Hz
1000
ms
Table 66: Analogue inputs configured as temperature measurement with PT100
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INSTALLATION GUIDE
POWER SUPPLY OUTPUTS
Rating
Specifications of the analogue power supply outputs
Min
Typ
Max
Unit
Voltage available at terminal +15 V (4) with respect to CMA
(6)
14.25
15
15.75
V
Voltage available at terminal -15 V (5) with respect to CMA (6)
-15.75
-15
-14.25
V
100
mA
Maximum current which can be delivered from output +15 V
and be absorbed by output -15 V
Table 67: Specifications of the analogue power supply outputs
Rating
Specifications of the digital power supply outputs
Voltage available at terminals +24 V (44 + 49) with respect to
CMA (43 and 50)
Min
Typ
Max
Unit
21
24
27
V
200
mA
Maximum current which can be delivered from output +24 V
Table 68: Specifications of the digital power supply outputs
WARNING
If the maximum/minimum input or output voltage ratings are exceeded, irreparable
damage to the equipment may occur.
NOTE
The isolated power supply output and the analogue auxiliary output are protected by a
resettable fuse capable of protecting the power supply unit inside the inverter against faults
following a short circuit, but it cannot be guaranteed that the inverter will temporarily cease
operation in the event of a short circuit.
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INSTALLATION GUIDE
12.13.
SUNWAY TG TE
STANDARD
DC-Parallel
12.13.1.
DC-Parallel Electrical Specifications
DC-PARALLEL (*)
Maximum Voc
1000 Vdc
Maximum total current
1500 A
Uc Pulse withstanding voltage for each DC input
4 kV
Uc Pulse withstanding voltage for each DC output
4 kV
Table 69: DC-Parallel Electrical Specifications
(*) The values in the table may be changed to suit special applications.
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12.13.2.
INSTALLATION GUIDE
Fuses
Use NH1 or NH3 fuses for DC applications.
Figure 98: NH1 fuse and blade
Figure 99: Fuse-holder for NH1 fuse and blade
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INSTALLATION GUIDE
12.13.3.
SUNWAY TG TE
STANDARD
Clearance Values for Stand-Alone DC-Parallel
Table 70 provides indications concerning the distance (L1, L2 and L3) from walls which must be observed
as shown in Figure 76 e Figure 77.
Clearance values [mm]
Model
Type of ventilation
L1
L2
L3
Ceiling
SUNWAY DC-Parallel 4/8-B6-S
Natural
700
300
500
200
SUNWAY DC-Parallel 4/8-B8-S
Natural
700
300
500
200
SUNWAY DC-Parallel 4/10-B8-S
Natural
700
300
500
200
SUNWAY DC-Parallel 4/10-D8-S
Natural
700
300
500
200
SUNWAY DC-Parallel 8/16-B8-S
Natural
700
300
500
200
SUNWAY DC-Parallel 8/16-D8-S
Natural
700
300
500
200
SUNWAY DC-Parallel 8/20-D8-S
Natural
700
300
500
200
SUNWAY DC-Parallel 8/16-B5-S
Natural
700
-
-
200
Table 70: Clearance Values for Stand-Alone DC-Parallel
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INSTALLATION GUIDE
13. DECLARATION OF CONFORMITY
Please refer to the “CERTIFICATION AND GRID INTERFACE FILE”.
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SUNWAY TG TE
STANDARD
14. ANNEXES
14.1.
Index of revisions
Revision 04
- Standard model range covered: 800V - 1000V
- Section 3.2 Product ID Code updated
- Sections 6.2.1 Transformer Technical Requirements and 6.2.2 Transformer Application Requirements
added
- Sections 8.5 DC Measurements, 8.6 AC Power Meter, 8.7 Real-time Efficiency Measurements added
- Section 9.3.2 Input Current Capacity updated
- Table 34: Trip time of fuses NH1-XL updated
- Sections 12.2 Installation Specifications and 12.3 Electrical Specifications updated
- Technical data for Sunway TG 800V TE and Sunway TG 1000V TE updated
- Current derating tables updated
- Sections 12.3.5 P-Q Diagram and 12.3.6 Short-Circuit Current Contribution added
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