RPS 450 - Bonfiglioli Redutores Do Brasil
RPS 450
Operating Instructions
Photovoltaic Inverter
30 kWp ... 170 kWp
Table of contents
This document............................................................................................................................. 8 Warranty and liability ................................................................................................................. 8 Obligation ................................................................................................................................... 8 Copyright .................................................................................................................................... 8 Storage........................................................................................................................................ 8 1 General safety instructions and information on use .............................................................. 9 1.1 Terminology ...................................................................................................................... 9 1.2 Designated use .................................................................................................................. 9 1.3 Misuse ............................................................................................................................. 10 1.3.1 Explosion protection ........................................................................................................ 10 1.4 Residual risks .................................................................................................................. 10 1.5 Safety and warning signs at solar inverter ..................................................................... 10 1.6 Warning information and symbols used in the user manual .......................................... 11 1.6.1 Hazard classes ................................................................................................................11 1.6.2 Hazard symbols ............................................................................................................... 11 1.6.3 Prohibition signs .............................................................................................................. 11 1.6.4 Personal safety equipment ............................................................................................... 12 1.6.5 Recycling ........................................................................................................................ 12 1.6.6 Grounding symbol ........................................................................................................... 12 1.6.7 ESD symbol ....................................................................................................................12 1.6.8 Information signs ............................................................................................................12 1.7 Marking of text passages ................................................................................................ 12 1.8 Conformity....................................................................................................................... 12 1.9 Directives and guidelines to be adhered to by the operator ........................................... 13 1.10 Operator's general plant documentation ..................................................................... 13 1.11 Operator's/operating staff's responsibilities ............................................................... 13 1.11.1 Selection and qualification of staff..................................................................................... 13 1.11.2 General work safety......................................................................................................... 13 1.12 Organizational measures ............................................................................................. 14 1.12.1 General .......................................................................................................................... 14 1.13 Handling and installation ............................................................................................. 14 1.14 Electrical connection .................................................................................................... 14 1.14.1 The five safety rules ........................................................................................................14 2 1.15 Safe operation .............................................................................................................. 15 1.16 Maintenance and service/troubleshooting .................................................................. 15 1.17 Utilities and operating materials ................................................................................. 15 Transport .............................................................................................................................. 16 2.1 Special safety instructions .............................................................................................. 16 2.2 Dimensions/weight ......................................................................................................... 16 2.3 Marking of centre of gravity ............................................................................................ 16 2.4 Crane transport ............................................................................................................... 17 2.4.1 Transport by means of load frame .................................................................................... 17 2.4.2 Transport by means of crane fork ..................................................................................... 17 2.4.3 Transport by means of (fork) lift truck 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2.5 Storage ............................................................................................................................ 18 3 Scope of supply ..................................................................................................................... 19 4 Technical data....................................................................................................................... 20 5 Product overview / Description of function ......................................................................... 21 5.1 Product variants/overview of components..................................................................... 21 5.1.1 RPS 450-030 ...................................................................................................................21 5.1.2 RPS 450-060 ...................................................................................................................23 5.1.3 RPS 450-120/170 ............................................................................................................ 25 5.1.4 Optional equipment ......................................................................................................... 26 5.1.5 Rating plate .................................................................................................................... 27 5.2 Function of RPS 450 and block diagram ......................................................................... 28 5.3 Monitoring and protective functions ............................................................................... 29 5.3.1 Grid monitoring ...............................................................................................................29 5.3.2 Insulation monitoring....................................................................................................... 29 5.3.3 Earth fault control (EFC) .................................................................................................. 29 5.3.3.1 General Information .................................................................................................. 29 5.3.3.2 Operating behavior ................................................................................................... 30 5.3.4 Temperature monitoring .................................................................................................. 31 5.3.5 Surge arrester ................................................................................................................. 31 6 7 Installation ........................................................................................................................... 32 6.1 Place of installation/environmental conditions .............................................................. 32 6.2 Cooling ............................................................................................................................ 33 6.3 Distance to ceiling ........................................................................................................... 34 Electrical connections ........................................................................................................... 35 7.1 Special safety instructions .............................................................................................. 35 7.2 Preparing the solar inverter for connection .................................................................... 36 7.3 Execution of electrical connection .................................................................................. 38 7.3.1 Notes ............................................................................................................................. 38 7.3.2 Circuit diagrams ..............................................................................................................38 7.3.3 RPS 450-030 ...................................................................................................................39 7.3.3.1 DC connection .......................................................................................................... 39 7.3.3.2 AC connection .......................................................................................................... 40 7.3.4 RPS 450-060 ...................................................................................................................41 7.3.4.1 DC connection .......................................................................................................... 41 7.3.4.2 AC connection .......................................................................................................... 42 7.3.5 RPS 450-120/170 ............................................................................................................ 43 7.3.5.1 DC connection .......................................................................................................... 43 7.3.5.2 AC connection .......................................................................................................... 44 7.3.6 Control voltage................................................................................................................45 7.3.7 Communication ............................................................................................................... 46 7.3.8 RS485 assembly CM-485T ................................................................................................ 46 7.3.9 Bus termination ............................................................................................................... 47 8 Operation .............................................................................................................................. 49 8.1 Special safety instructions .............................................................................................. 49 8.2 Control elements ............................................................................................................. 50 8.2.1 RPS 450-030/060 ............................................................................................................ 50 8.2.2 RPS 450-120/170 ............................................................................................................ 51 8.3 Control unit "KP500" ....................................................................................................... 52 8.3.1 Menu Structure ...............................................................................................................53 8.4 4
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First commissioning after connection ............................................................................. 53 RPS 450
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8.4.1 8.4.2 RPS 450-030/060 ............................................................................................................ 53 RPS 450-120/170 ............................................................................................................ 54 8.5 Commissioning ................................................................................................................ 55 8.5.1 RPS 450-030/060 ............................................................................................................ 55 8.5.2 RPS 450-120/170 ............................................................................................................ 56 8.6 Decommissioning ............................................................................................................ 57 8.6.1 RPS 450-030/060 ............................................................................................................ 57 8.6.2 RPS 450-120/170 ............................................................................................................ 58 8.7 Emergency shutdown ...................................................................................................... 59 8.7.1 RPS 450-030/060 ............................................................................................................ 59 8.7.2 RPS 450-120/170 ............................................................................................................ 59 8.8 9 Final decommissioning/disassembly/disposal/recycling ............................................... 59 Parameterization .................................................................................................................. 60 9.1 Selecting the language .................................................................................................... 60 9.2 Set password ................................................................................................................... 60 9.3 Display parameters ......................................................................................................... 61 9.3.1 Inverter data .................................................................................................................. 61 9.3.2 Installed optional modules ............................................................................................... 61 9.3.3 Software version .............................................................................................................61 9.4 Start up behaviour .......................................................................................................... 61 9.5 Shut down behaviour ...................................................................................................... 62 9.6 Operating statuses .......................................................................................................... 63 9.7 Voltage controller ............................................................................................................ 64 9.8 Power limitation .............................................................................................................. 65 9.9 Communication interface for system monitoring ........................................................... 65 9.9.1 Setting the Baud Rate ...................................................................................................... 65 9.9.2 Setting the Node Address ................................................................................................. 66 9.9.3 Protocol .......................................................................................................................... 66 9.10 Feed-in management ................................................................................................... 67 9.10.1 Power limitation by setpoint ............................................................................................. 67 9.10.2 Power limitation in case of overfrequency .......................................................................... 67 9.10.3 Mains frequency monitoring ............................................................................................. 69 9.11 Electrical cabinet fan.................................................................................................... 69 9.12 Error/warning behavior ............................................................................................... 70 9.12.1 Automatic error acknowledgement .................................................................................... 70 9.12.2 Operation mode - Overvoltage protection .......................................................................... 70 9.12.3 Operation mode - Insulation monitoring ............................................................................ 70 9.13 Intelligent current limits .............................................................................................. 71 9.14 Status ........................................................................................................................... 72 9.15 Actual values of solar inverter ..................................................................................... 72 9.16 Actual values of frequency inverter ............................................................................. 73 9.17 Actual mains values ..................................................................................................... 73 9.18 Actual value memory ................................................................................................... 74 9.19 Parameters ................................................................................................................... 75 10 Maintenance and service ...................................................................................................... 76 10.1 Special safety instructions ........................................................................................... 76 02.2010.DE
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10.2 Service intervals/preventive maintenance .................................................................. 77 10.3 Test/inspections .......................................................................................................... 78 11 Error diagnosis ...................................................................................................................... 79 11.1 List of errors ................................................................................................................. 79 11.2 Error messages............................................................................................................. 79 11.3 Warning Messages ....................................................................................................... 81 12 Plant monitoring ................................................................................................................... 82 12.1 Plant monitoring by means of data logger .................................................................. 82 Index ........................................................................................................................................... 83 6
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List of illustrations
Figure 2-1: Marking of centre of gravity ................................................................................................ 16 Figure 2-2: Transport by means of load frame ....................................................................................... 17 Figure 5-1: RPS 450-030 outside view .................................................................................................. 21 Figure 5-2: RPS 450-030 inside view ..................................................................................................... 22 Figure 5-3: RPS 450-060 outside view .................................................................................................. 23 Figure 5-4: RPS 450-060 inside view ..................................................................................................... 24 Figure 5-5: RPS 450-120/170 outside view ............................................................................................ 25 Figure 5-6: RPS 450-120/170 inside view .............................................................................................. 26 Figure 5-7: Rating plate - example ....................................................................................................... 27 Figure 5-8: Block diagram RPS 450 ....................................................................................................... 28 Figure 5-9: Earth fault control with grounding at the negative pole of the PV-Generator............................ 30 Figure 6-1: Air flow ............................................................................................................................. 33 Figure 6-2: Distance to ceiling .............................................................................................................. 34 Figure 7-1: Disassembly of base sheets ................................................................................................ 36 Figure 7-2: Disassembly of bottom sheet (only required in the case of RPS 450-120/170) ......................... 36 Figure 7-3: Assembly of bottom plate ................................................................................................... 37 Figure 7-4: Connection RPS 450-030 .................................................................................................... 39 Figure 7-5: Connection RPS 450-060 .................................................................................................... 41 Figure 7-6: Connection RPS 450-120/170 .............................................................................................. 43 Figure 7-7: DC connection cable lug sizes/distances ............................................................................... 43 Figure 7-8: DC connection RPS 450-120/170 with two cables per pole ..................................................... 44 Figure 7-9: RS485 assembly................................................................................................................. 46 Figure 7-10: RS-485 connection terminal block ...................................................................................... 47 Figure 7-11: Wiring example ................................................................................................................ 48 Figure 8-1: Control elements RPS 450-030/060 ..................................................................................... 50 Figure 8-2: Control elements RPS 450-120/170 ..................................................................................... 51 Figure 8-3: Control unit ....................................................................................................................... 52 Figure 8-4: Menu structure control unit ................................................................................................. 53 Figure 8-5: Control elements RPS 450-030/060 ..................................................................................... 55 Figure 8-6: Control elements RPS 450-120/170 ..................................................................................... 56 Figure 8-7: Control elements RPS 450-030/060 ..................................................................................... 57 Figure 8-8: Control elements RPS 450-120/170 ..................................................................................... 58 Figure 9-1: I=f(U), insolation const. ..................................................................................................... 64 Figure 9-2: I=f(U), cell temp. const. ..................................................................................................... 64 Figure 9-3: I=f(U), P=f(U) ................................................................................................................... 64 Figure 12-1: Plant monitoring by means of data logger .......................................................................... 82 02.2010.DE
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This document
Dear customer,
This user manual describes the solar inverter type RPS 450 by BONFIGLIOLI VECTRON GmbH (in the following referred to as solar inverter) and its use.
The user manual contains important information on how the solar inverter can be used safely, properly and
efficiently. Compliance with this user manual contributes to avoiding risks, minimizing repair cost and downtimes and increasing the reliability and service live of the solar inverter. For this reason, make sure you read
the user manual carefully.
In case any problems occur which are not covered by this user manual sufficiently, please
contact the manufacturer.
Warranty and liability
BONFIGLIOLI VECTRON would like to point out that the contents of this user manual do not form part of any
previous or existing agreement, assurance or legal relationship. Neither are they intended to supplement or
replace such agreements, assurances or legal relationships. The manufacturer's obligations are exclusively
specified in the relevant purchase contract. This contract also contains all and any warranty regulations
which may apply to the relevant scope of supply. These contractual warranty provisions are neither extended nor limited by the specifications contained in this documentation.
The manufacturer reserves the right to correct or amend the specifications, product information and omissions in these operating instructions without notice. The manufacturer shall not be liable for any damage,
injuries or costs which may be caused by the aforementioned reasons.
In addition to that, BONFIGLIOLI VECTRON excludes any warranty/liability claims for any personal and/or
material damage if such damage is due to one or more of the following causes:
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inappropriate use of the solar inverter,
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non-compliance with the instructions, warnings and prohibitions contained in this user manual,
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unauthorized modifications of the solar inverter,
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insufficient monitoring of parts which are subject to wear,
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maintenance work not carried out properly or not carried out in due time,
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catastrophes by external impact and Force Majeure.
Obligation
This user manual must be read before commissioning. Anybody entrusted with tasks in connection with the
-
transport and/or unloading,
-
assembly,
-
installation of the solar inverter and
-
operation of the solar inverter
must have read and understood the user manual and, in particular, the safety instructions in order to protect
himself/herself and prevent the solar inverter from being damaged.
Copyright
This user manual is protected by copyright. It is solely intended for use by operating staff and must not be
copied nor disclosed to third parties.
Storage
This user manual is an integral component of the solar inverter. It must be stored such that it is accessible
to operating staff at all times. In case the solar inverter is sold to other users, this user manual must also be
handed over.
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1
General safety instructions and information on use
The chapter "General safety instructions and information on use" contains general safety instructions for the
Operator and the Operating Staff. At the beginning of certain main chapters, some safety instructions are
included which apply to all work described in the relevant chapter. Special work-specific safety instructions
are provided before each safety-relevant work step.
1.1
Terminology
Operator
This is the entrepreneur/company who/which operates the solar inverter and uses it as per the specifications
or has it operated by qualified and instructed staff.
Operating Staff
The term Operating Staff covers persons instructed by the Operator of the solar inverter and assigned the
task of operating it.
Qualified staff
The term Qualified Staff covers staff who is assigned special tasks by the Operator of the solar inverter, e.g.
transport, installation, maintenance and service/repair and troubleshooting. Based on their qualification
and/or know-how, qualified staff must be capable of identifying defects and assessing functions.
Qualified electrician
The term Qualified Electrician covers qualified and trained staff who has special technical know-how and
experience with electrical installations. In addition, Qualified Electricians must be familiar with the applicable
standards and regulations and must be able to assess the assigned tasks properly and identify and eliminate
potential hazards.
Instructed person
The term Instructed Person covers staff who was instructed and trained about/in the assigned tasks and the
potential hazards that might result from inappropriate behavior. In addition, instructed persons must have
been instructed in the required protection provisions, protective measures, the applicable directives, accident
prevention regulations as well as the operating conditions and verified their qualification.
Expert
The term Expert covers qualified and trained staff who has special technical know-how and experience relating to solar inverter. Experts must be familiar with the applicable government work safety directives, accident prevention regulations, guidelines and generally accepted rules of technology in order to assess the
operationally safe condition of the solar inverter.
1.2
Designated use
The solar inverter is designed according to the state of the art and recognized safety regulations.
Applied standards:
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2006/95 EC Low voltage directive
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DIN EN 50178 Electronic equipment for use in power installations
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2004/108/EC Electromagnetic compatibility
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EN 61000-6-2 Electromagnetic compatibility, Immunity for industrial environments
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EN 61000-6-4 Electromagnetic compatibility, Emission for industrial environments
However, use of the device still holds risk for life and limb of operating staff or other persons as well as the
risk of damaging the solar inverter and/or other tangible assets. Only use the solar inverter if it is in a technically perfect condition and in compliance with its designated use, aware of the risks involved, taking the
required safety measures and in compliance with this user manual.
The solar inverter may only be used in photovoltaic applications for converting the electrical power generated by photovoltaic generators and feeding it into the supply grid. Any other use, connection of other generator types, shall be considered as not in compliance with the designated use. The manufacturer shall not
be held liable for any damage resulting from such non-compliance. The sole risk shall be borne by the operator.
For the performance limits of the solar inverter, refer to chapter 4 "Technical data".
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1.3
Misuse
Any use other than that described in "Designated use" shall not be permissible and shall be considered as
misuse.
The following is not permitted:
-
use by uninstructed staff,
-
use of the device while it is not in perfect condition,
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without protection enclosure (e.g. doors, covers),
-
without safety equipment or with safety equipment deactivated.
The manufacturer shall not be held liable for any damage resulting from such misuse. The sole risk shall be
borne by the operator.
1.3.1 Explosion protection
The solar inverter is an IP 20 protection class device. For this reason, use of the device in explosive atmospheres is not permitted.
1.4
Residual risks
Residual risks are special hazards involved in handling of the solar inverter which cannot be eliminated despite the safety-compliant design of the device. Residual risks are not obviously identifiable and can be a
potential source of injury or health hazard.
Electrical hazard
-
Danger of contact with energized components due to a defect, opened covers or enclosures or improper
working on electrical equipment.
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Danger of contact with energized components in solar inverter if no external disconnection device was
installed by the customer.
-
Danger of contact with still energized DC link capacitors.
Electrostatic charging
-
Danger of electrostatic charging in case of equipotential bonding defect.
Thermal hazards
-
Risk of accidents due to hot surfaces such as heat sink, transformer, fuse, sine filter.
Danger of tilting during transport
-
Center of gravity is not the middle of the solar inverter.
1.5
•
Comply with all safety instructions and danger information provided on the solar inverter.
•
Ensure that all safety instructions and danger information provided on the solar inverter are/is complete
and legible.
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Safety and warning signs at solar inverter
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1.6
Warning information and symbols used in the user manual
1.6.1 Hazard classes
The following hazard identifications and symbols are used to mark particularly important information:
DANGER
Identification of immediate threat holding a high risk of death or serious injury if not avoided.
WARNING
Identification of immediate threat holding a medium risk of death or serious injury if not
avoided.
CAUTION
Identification of immediate threat holding a low risk of minor or moderate physical injury if
not avoided.
NOTE
Identification of a threat holding a risk of material damage if not avoided.
1.6.2 Hazard symbols
Symbol
Meaning
Symbol
Meaning
General hazard
Suspended load
Electrical voltage
Hand injury
Danger of crushing
Hot surfaces
1.6.3 Prohibition signs
Symbol
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Meaning
Symbol
Meaning
No persons with pacemakers
Fire, open flames forbidden
No switching; it is forbidden to switch
the machine, assembly on
No smoking
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1.6.4 Personal safety equipment
Symbol
Meaning
Wear body protection.
1.6.5 Recycling
Symbol
Meaning
Recycling, to avoid waste, collect all
materials for reuse.
1.6.6 Grounding symbol
Symbol
Meaning
Ground connection
1.6.7 ESD symbol
Symbol
Meaning
ESD: Electrostatic Discharge (can
damage components and assemblies)
1.6.8 Information signs
Symbol
Meaning
Tips and information making using the
solar inverter RPS 450 easier.
1.7
Marking of text passages
Special passages in the user manual are marked by the following symbols:
-
Marking of lists.
•
Marking of instructions and information in safety instructions.
1.8
Conformity
The declaration of conformity will be supplied by the manufacturer upon request.
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1.9
Directives and guidelines to be adhered to by the operator
The operator must follow the following directives and regulations:
•
Ensure that the applicable workplace-related accident prevention regulations as well as other applicable
national regulation are accessible to the staff.
•
An authorized person must ensure, before using the solar inverter, that the device is used in compliance
with its designated use and that all safety requirements are met.
•
Additionally, comply with the applicable laws, regulations and directives of the country in which the solar
inverter is used.
1.10
•
Operator's general plant documentation
In addition to the user manual, the operator should issue separate internal operating instructions for the
solar inverter. The user manual of the solar inverter must be included in the user manual of the whole
plant.
1.11
Operator's/operating staff's responsibilities
1.11.1
Selection and qualification of staff
•
Any work on the solar inverter may only be carried out by reliable staff. The staff must not be under the
influence of any drugs. Note the minimum age required by law. Only employ qualified or instructed staff.
Define the staff's responsibility in connection with all work on the solar inverter clearly.
•
Work on the electrical components may only be performed by a qualified electrician according to the
applicable rules of electrical engineering.
1.11.2
General work safety
•
In addition to the user manual, any applicable legal or other regulations relating to accident prevention
and environmental protection must be complied with. The staff must be instructed accordingly. Such
regulations and/or requirements may include, for example, handling of hazardous media and materials
or provision/use of personal protective equipment.
•
In addition to this user manual, issue any additional directives that may be required to meet specific
operating requirements, including supervision and reporting requirements, e.g. directives relating to
work organization, workflow and employed staff.
•
Do not change or modify the solar inverter in any way that might affect safety, unless such change or
modification has been approved expressly by the manufacturer.
•
Only use the solar inverter if the rated connection and setup values specified by the manufacturer are
met. Only use original spare parts.
•
Provide appropriate tools as may be required for performing all work on the solar inverter properly.
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1.12
Organizational measures
1.12.1
General
•
Train your staff in the handling and use of the solar inverter as well as the risks involved.
•
Use of any individual parts or components of the solar inverter in other parts of the operator's plant is
prohibited.
1.13
Handling and installation
•
Do not commission any damaged or destroyed components.
•
Prevent any mechanical overloading of the solar inverter. Do not bend any components and never
change the isolation distances.
•
Any use of damaged or destroyed components shall be considered as a non-compliance with the applicable standards.
•
The solar inverter may only be installed in suitable operating rooms. The solar inverter is exclusively
designed for installation in industrial environments.
1.14
Electrical connection
•
The five safety rules must be complied with.
•
Never touch terminals which are energized in operation because the capacitors may still be charged
even if the device is switched off.
•
When performing any work on/with the solar inverter, always comply with the applicable national and
international regulations/laws on work on electrical equipment/plants.
•
The cables connected to the solar inverter may not be subjected to high-voltage insulation tests unless
appropriate circuitry measures are taken before.
•
Connect the solar inverter only to supply grids suitable for this type of application.
1.14.1
The five safety rules
When working on/in electrical plants, always follow the five safety rules.
1. Isolate,
2. secure to prevent restarting,
3. check isolation,
4. earth and short-circuit,
5. cover or shield neighboring live parts.
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1.15
Safe operation
•
During operation of the solar inverter, always comply with the applicable national and international regulations/laws on work on electrical equipment/plants.
•
Before commissioning and starting the operation, make sure to fix all covers and check the terminals
and cables for tight fit. Check the additional monitoring and protective devices according to the applicable national and international safety directives.
•
Never open the solar inverter during operation, nor perform any connection work. Only work on the
solar inverter while it is deenergized.
•
Solar inverters are energized with high voltage during operation, include rotating parts (fans) and have
hot surfaces. Any unauthorized removal of covers, improper use, wrong installation or operation may result in serious injuries or material damage.
•
Even some time after shutdown of the solar inverter, certain components, e.g. heat sink, transformer,
fuse, filter may have a high temperature. Don't touch any surfaces directly after shutdown. Wear safety
gloves where necessary.
•
In order to avoid accidents or damage, only qualified staff and electricians may carry out the work such
as installation, commissioning or setup.
•
In the case of a defect of terminals and/or cables, etc., immediately disconnect the solar inverter from
mains supply and the PV generator.
•
Persons not familiar with the operation of solar inverter as well as children must not have access to the
solar inverter. Do not bypass nor decommission any protective facilities.
1.16
Maintenance and service/troubleshooting
•
Perform the maintenance work and inspections prescribed by the user manual carefully, including the
specifications on parts/equipment replacement.
•
Work on the electrical components may only be performed by a qualified electrician according to the
applicable rules of electrical engineering. Only use original spare parts.
•
Unauthorized opening and improper interventions can lead to personal injury or material damage. Repairs on the solar inverter may only be carried out by the manufacturer or persons authorized by the
manufacturer. Check protective equipment regularly.
•
Before performing any maintenance work, the solar inverter must be disconnected from mains supply,
PV-generator and its own power supply and secured against restarting. The five safety rules must be
complied with.
1.17
•
Utilities and operating materials
Comply with all applicable environmental protection regulations. Ensure that all utilities and operating
materials are disposed of properly.
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2.1
Transport
Special safety instructions
WARNING
High weight and unusual center of gravity!
Tilting the solar inverter may result in death or serious injuries. Due to the size and weight of
the solar inverter, there is the risk of accidents during transport. Center of gravity is not the
middle of the solar inverter.
2.2
•
Take utmost care during transport in order to prevent damage and deformation. Transport, attachment and lifting of loads may only be carried out by specially instructed staff
who are familiar with the work.
•
Take care when putting down the solar inverter.
•
Only use suitable transport and lifting equipment with sufficient carrying capacity. The
lifting cables/chains used must be able to carry the weight of the solar inverter. Check
the ropes or chains for damage.
•
Wear appropriate safety clothing.
•
When lifting the solar inverter up ensure that it does not fall over, is displaced, swings
out or falls down. Always use appropriate securing devices.
•
Before the solar inverter is lifted up, everybody must have left the work area.
•
Before transport, make sure the transport path has sufficient carrying capacity.
•
Tilting the solar inverter is prohibited. Transport may only be effected in upright position.
•
Do not step under suspended loads.
Dimensions/weight
For information on the weight and dimensions of the solar inverter, refer to chapter 4
"Technical data".
2.3
Marking of centre of gravity
The centre of gravity is marked on the packaging of the solar inverter.
Figure 2-1: Marking of centre of gravity
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2.4
Crane transport
2.4.1 Transport by means of load frame
NOTE
Damaging of solar inverter
•
Always use a load frame for transport. The tensile loads must act vertically on the solar
inverter. If the tensile forces don't act vertically on the eye bolts, this will result in mechanical damage and distortion.
•
Lift the solar inverter up carefully. Avoid putting it down abruptly.
Figure 2-2: Transport by means of load frame
Not permissible.
2.4.2 Transport by means of crane fork
•
Remove the base sheets on the front and rear side. See "Preparing the solar inverter for connection".
•
Move the crane fork below the solar inverter.
•
Lift the solar inverter up carefully. Avoid putting it down abruptly.
•
After installation, mount the base sheets again.
Figure 2-4: Transport by means of crane fork
2.4.3 Transport by means of (fork) lift truck
In exceptional cases, transport by means of a (fork) lift truck is permissible. Comply with the safety instructions in chapter 2 "Transport".
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2.5
Storage
NOTE
Damaging of solar inverter
•
Wrong or inappropriate storage may result in damage, e.g. due to moisture and dirt.
Avoid major temperature variations and high air humidity.
•
During storage, protect the solar inverter against moisture and dirt.
Ensure that all packaging materials are disposed of in an environmentally compatible manner.
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Scope of supply
Immediately after delivery, check that the contents are undamaged (transport damage) and corresponds to
the scope of the order.
Check if the specifications on the shipping not match the specification on the rating plate. Also check the
type and completeness of any supplied accessories. Report any transport damage and missing articles to the
forwarding agent immediately.
The following components are included in the scope of supply:
In the storage compartment on the inside of the solar inverter, you will find:
-
Electrical cabinet key
-
Circuit diagrams
-
Foamed material seal for cable entry
-
Instructions for grid monitoring device
-
Option: data logger instructions
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19
4
Technical data
Type
RPS 450
DC side input
Recommended maximum
kip
connected generator power1
MPP area
V DC
Max. DC input voltage
V DC
Max. DC input current
A
AC side output
Mains voltage
V AC
Mains frequency
Hz
AC rated power
kW
Mains current (400 V grid)
A
Power factor
Distortion factor
%
Control voltage, external
Transformer
Isolation level
Additional standards
Efficiency
Maximum efficiency
%
European efficiency
%
Consumption during night
W
hours
Mechanics
Dimensions
W
mm
H4
D
Weight approx.
kg
Degree of protection
Environment
Ambient temperature
°C
Rel. air humidity
%
Rate of coolant air required m3/h
Protection and monitoring
Insulation monitoring
Grid monitoring
Overvoltage protection
-030
-060
-120
-170
30
60
120
170
250
350
425 ... 875
900
70
140
4002
503
27
39
54
108
78
156
adjustable, > 0.99 at rated power
<3
230 V, 50 Hz, 16 A backup fuse
150
217
according to EN 60726:2003
EN 61558-2-4
95,2
94,4
95,7
94,9
96,7
95,9
96,7
95,9
1200
1700
800
950
1200
1700
800
1200
20
600
1300
500
400
750
800
1500
600
650
IP 205
-10 ... 406
15 ... 85, not condensing
1500
3000
4500
50kΩ, fixed tripping value
adjustable voltage and frequency range
EN Type 2, IEC Class II on mains and generator side
Due to tolerances, deviations from the data specified here are possible.
For higher power levels, BONFIGLIOLI VECTRON offers a modular system.
1
other power classes on request
other mains voltages on request
3
other mains frequencies on request
4
Solar inverters with a higher degree of protection will be higher
5
Higher degrees of protection optional
6
In a higher ambient temperature, the AC rated power will be lower (derating)
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5
Product overview / Description of function
The devices of the RPS 450 series are grid-coupled solar inverters used for feeding the power generated by
PV modules to the supply grid.
The solar inverter works fully automatically, i.e. no manual intervention is required for feed-in operation.
The solar inverter starts feeding to grid automatically as soon as the PV modules produce enough power
after sunrise. Before that, the control and regulation unit starts to monitor the grid voltage and frequency as
well as the isolation resistance.
The display of the control unit integrated in the solar inverter displays information on the plant.
The solar inverter works in a way that ensures that the maximum power is taken up from the PV modules.
As soon as the energy supplied by the PV modules is no longer enough to supply power to the grid (dawn),
the solar inverter disconnects from the grid and shuts down. All settings and saved data are maintained.
Manual shutdown is also possible. The startup and shutdown behaviour can be configured.
5.1
Product variants/overview of components
5.1.1 RPS 450-030
Figure 5-1: RPS 450-030 outside view
RPS 450-030
1
Control unit KP500
4
Lock
2
Control switch Start/Stop
5
Air inlet filter
3
Illuminated reset button
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21
14
1
1
13
2
12
3
4
11
10
5
6
9
8
7
Figure 5-2: RPS 450-030 inside view
RPS 450-030
1
Fan
8
Overvoltage protection - control voltage
2
Frequency inverter AEC
9
Isolating transformer
3
DC radio interference filter
10
Main contactor (behind sine filter)
4
AC Fuse disconnector
11
Sine filter
5
DC Fuse disconnector
12
AC radio interference filter
6
DC overvoltage protection
13
Insulation monitoring
7
Overvoltage protection - grid
14
Grid monitoring
Details of the layout may differ from the layout shown above.
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5.1.2 RPS 450-060
Figure 5-3: RPS 450-060 outside view
RPS 450-060
1
Control unit KP500
4
Lock
2
Control switch Start/Stop
5
Air inlet filter
3
Illuminated reset button
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23
1
14
13
12
2
11
3
4
5
10
6
7
9
8
Figure 5-4: RPS 450-060 inside view
RPS 450-060
1
Fan
8
Overvoltage protection - control voltage
2
Frequency inverter AEC
9
Isolating transformer
3
DC radio interference filter
10
Sine filter
4
DC overvoltage protection
11
Main contactor
5
DC Fuse disconnector
12
AC radio interference filter
6
Overvoltage protection - grid
13
Grid monitoring
7
AC Fuse disconnector
14
Insulation monitoring
Details of the layout may differ from the layout shown above.
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5.1.3 RPS 450-120/170
Figure 5-5: RPS 450-120/170 outside view
RPS 450-120/170
1
Control unit KP500
5
DC main switch for cutting off the connection
to PV field
2
Control switch Start/Stop
6
Lock
3
Illuminated reset button
7
Air inlet filter
4
AC main switch for cutting off the connection
to the grid
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25
Figure 5-6: RPS 450-120/170 inside view
RPS 450-120/170
1
Fan
8
DC overvoltage protection
2
Grid monitoring
9
Overvoltage protection - grid
3
Insulation monitoring
10
Isolating transformer
4
DC radio interference filter
11
Main contactor (behind of mounting plate)
5
AC main switch
12
Sine filter
6
Overvoltage protection - control voltage
13
AC radio interference filter
7
DC main switch
14
Frequency inverter AEC
Details of the layout may differ from the layout shown above.
5.1.4 Optional equipment
The following optional components can be integrated in the solar inverter:
-
Control transformer for internal 230 V power supply (if no external 230 V supply available at place of
installation),
-
Interface converter from RS232/RS485 to Ethernet for plant monitoring,
-
Data logger for data management, data storage and plant monitoring.
The standard variant features a RS485 communication module for plant monitoring and configuration via
PC/notebook. This module can be replaced by an optional communication module for RS232, Profibus DP,
CANopen or Ethernet.
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5.1.5 Rating plate
Figure 5-7: Rating plate - example
The inverter type is identified by the rating plate. This is located on the inside of door and on the outside of
the side panel of the solar inverter.
RPS 450-120
Recommended connected DC generator power (peak power) [kWp]
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5.2
Function of RPS 450 and block diagram
EMC-Filter
Frequency inverter
Sine filter
Transformer
EMC-Filter
AEC
Current transformer
Main contactor
Insolation
monitoring
Mains monitoring
A86
Control switch
Surge arrester
Surge arrester
STOP
RUN
Disconnecting device
Control unit
Disconnecting device
FUN
ESC
ENT
+
Generator connection
Mains connection
L1 L2 L3
Figure 5-8: Block diagram RPS 450
If the DC disconnector is switched on, the energy coming from the PV field reaches the frequency inverter
via the DC EMC filter. Surge arresters in the DC input protect the solar inverter against destructive overvoltage coupling from the PV field. In the case of an earth fault in the PV field or the components connected to
the PV field, up to the isolating transformer, the insulation monitoring instrument responds. The response
threshold is set permanently.
The frequency inverter controls the solar inverter. As from a DC voltage of 300 V, grid monitoring and insulation monitoring are activated.
If another voltage threshold is exceeded, the solar inverter will begin to determine the current power of the
PV field if
-
the solar inverter is enabled via the control switch and
-
no error is signalled.
If the power assessment shows that the power currently produced by the PV field is greater than the power
loss of the solar inverter, the main contactor is switched on. Now, the frequency inverter is connected to the
grid via the filters and the transformer. One auxiliary contact of the main contactor activates feed-in mode
and the MPP controller. The MPP controller adjusts the DC voltage such that a power optimum is obtained.
If the insolation becomes so weak that the power of the PV field is no longer enough for economical operation of the solar inverter, the AC EMC filter, isolating transformer, sine filter and frequency inverter are disconnected from the AC grid again.
If the DC voltage drops further in the evening, supply of the monitoring equipment is stopped, too.
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5.3
Monitoring and protective functions
DANGER
Live components - risk of electric shock !
•
Only qualified electrical staff may inspect the monitoring equipment.
•
High mains voltage and high DC voltage from solar modules.
•
Using suitable protective equipment, secure live components in the work area to prevent
contact.
5.3.1 Grid monitoring
A mains monitoring device with combined voltage and frequency monitoring is installed in the solar inverter.
Adjustment is not required. By default, this monitoring function is set to suitable values.
-
The response values are adjustable,
-
Error message F0405 "Grid failure" is triggered if the grid voltage or frequency is outside of the adjusted
range
5.3.2 Insulation monitoring
Mostly, solar power systems are IT-Systems. The insulation monitoring is for the detecting of insulation
faults in the positive or negative pole of the PV-Generator, which are caused by damage in the insulation. In
the case of earthed solar power plants an earth fault control is used instead of an insulation monitoring. See
also chapter 5.3.3 Earth fault control (EFC).
-
Fixed response value
-
Error message F0404 "Insulation" if value drops below 50 kΩ
5.3.3 Earth fault control (EFC)
5.3.3.1
General Information
The use of certain module types requires earthing of the PV generator at the negative or positive pole. The
solar inverters designed for this application, are provided with high-performance circuit breakers with adjustable trip current. The insulation monitor required for IT systems is not required in this case. The highperformance circuit breaker signals earth faults at the non-grounded pole. In the case of an earth fault at
the non-grounded pole, a current will flow between the defective area and the earth fault controller. This
results in a tripping of the high-performance circuit breaker. Grounding of the grounded pole is stopped as
soon as the earth fault control has tripped.
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1
2
3
Figure 5-9: Earth fault control with grounding at the negative pole of the PV-Generator
1
PV-Generator
2
RPS 450-
3
Earth fault control
Under certain circumstances, it may take a long time until an earth fault in the non-grounded pole results in
the earth fault control being tripped. It might not even be tripped at all. Irradiation and the earth resistance
influence the fault current. In the case of high earth resistance or low irradiation, particularly with low-power
inverters, an earth fault in the non-grounded pole will not result in tripping of the earth fault control immediately.
NOTE
Requirements to be met by the plant
The following instructions must be followed:
•
Ensure short-circuit and earth fault safe installation of the DC cables
•
Ensure good reference to grounding of solar inverter
•
The insulation monitor of the solar inverter does not exist in the case of grounded positive or negative pole. Both poles must be protected against direct contact.
•
Grounding may only be effected in the solar inverter, additional earthing in the PV generator or the connection boxes is not permissible.
The tripping of the earth fault control results in error message F0404 "Insulation". Before the inverter can be
commissioned again, the insulation fault must be repaired. Operation of the solar inverter with the earth
fault control tripped is not permissible.
DANGER
Live components - Risk of electric shock!
•
EFC protects the equipment only, it does not protect persons. Grounded PV plants may
only be accessed by qualified and instructed electricians. If the plant is to be accessed by
non-instructed staff, the grounding must be undone.
5.3.3.2
Operating behavior
An earth fault in the grounded pole has a negative impact on earth fault control and plant operation. For this
reason, the insulation of the grounded pole must be checked at regular intervals to ensure that there is no
earth fault at the grounded pole.
In the case of an earth fault at the grounded pole, part of the total current will flow through the earth fault
controller during operation and can result in the EFC being tripped.
In the case of an earth fault at both poles, earth fault control will have no effect. The fault current will not
flow through the earth fault controller and the circuit cannot be opened for this reason. This might damage
the plant.
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NOTE
Maintenance work
The following instructions must be followed:
•
The generator grounding is undone when the DC disconnector in the solar inverter is
opened. Insulation measurements may only be carried out on the PV generator when the
solar inverter DC disconnector is open.
Setup values
Setting range
Factory settings
3,8 A to 5,8 A
3,8 A
5.3.4 Temperature monitoring
The inside temperature and the heat sink temperature of the frequency inverter as well as the temperature
of the sine filter and transformer are monitored.
-
Temperature switches in coils of sine filter and line choke
Fault message F0403 "Transformer overtemperature" if winding temperature is too high
-
Power reduction if max. permissible temperature of frequency inverter is reached
Fault message F0200 "Heat sink overtemperature" if maximum heat sink temperature is exceeded
Fault message F0300 "Inside temperature" if maximum inside temperature is exceeded
Fault message F0301 "Undertemperature" if minimum inside temperature is not reached
-
Electrical cabinet temperature control, fan activation temperature can be parameterized
5.3.5 Surge arrester
-
Overvoltage protection on AC and DC side
-
Arrester class: EN type 2, IEC class 2, VDE class C
-
Safe protection can be reached by external lightning protection provided by the customer, e.g. lightning
arresters, arrester class EN type 1, IEC class 1, VDE class B.
-
Error indication by visual signalling at surge arresters
-
A warning or error message is displayed on the control unit if the surge arrester is not functional. Also
refer to chapter 9.12.2 "Operation mode - Overvoltage protection".
-
Warning W8000 "Overvoltage protection" in setting "1 – Warning" (default setting) for Operation
mode - Overvoltage protection 828
-
Error F0406 "Overvoltage protection" in setting "2 – Error cut-off" for Operation mode - Lightning
protection 828. The solar inverter is switched off
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6
6.1
Installation
Place of installation/environmental conditions
NOTE
Damaging of solar inverter
If not installed properly or if installed in inappropriate environments, the solar inverter may be
damaged. The following instructions must be followed:
32
32
•
Install the solar inverter in a closed, well-ventilated environment (technical equipment
room), protected against rain, condensation, moisture and dust. Note the degree of protection.
•
The temperature at the place of installation must be between 0 and 40 °C.
•
Do not expose the solar inverter to direct sun impact at the place of installation.
•
Relative air humidity must be in the range between 15% and 85%.
•
The solar inverter must not be exposed to condensation water.
•
The inlet and outlet filters must not be covered nor closed.
•
The heat produced in the solar inverter is dissipated to the outside by means of roof
fans. Keep a minimum distance of 500 mm to the ceiling.
•
Do not place any objects on the solar inverter. Keep the top side of the solar inverter
clear.
•
The equipment room must not be heated up by the air discharged from the solar inverter.
•
Install the solar inverter on level and non-slip floor. The floor and the environment must
be non-flammable.
•
The foundation must be designed to bear the weight of the solar inverter (sufficient carrying capacity).
•
If necessary, install cable conduits in the foundation of the place of installation. The connecting cables can enter the solar inverter from below.
•
Align the solar inverter on the floor such that it is straight.
•
Ensure there is sufficient space for escape routes and for operating and maintenance
work.
•
BONFIGLIOLI VECTRON recommends installing a smoke detector in the equipment room.
•
EMC and noise emission of the solar inverter are designed for operation an industrial
environment.
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6.2
Cooling
Figure 6-1: Air flow
For cooling the solar inverter, the cooling air is taken in through the ventilation openings in the doors and
blown off via the fans in the upper area of the inverter. Air filters are provided in the ventilation openings. It
is possible to install several solar inverters side by side.
NOTE
Damaging of solar inverter
For the minimum and maximum ambient temperature and relative moisture, refer to the table
in chapter 4 "Technical data".
For the cooling air requirements, refer to the table in chapter 4 "Technical data".
If the specified cooling air values cannot be reached, the operator must install additional ventilation equipment at the place of installation.
If the cooling air is very dirt-loaded, the operator must install additional filters (e.g. in building).
When the unit leaves the factory, the overtemperature cut-off and the parameters for control
of the electrical cabinet fans are set to suitable values.
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6.3
Distance to ceiling
Figure 6-2: Distance to ceiling
NOTE
Damaging of solar inverter
All solar inverters must keep a distance to the ceiling of at least 500 mm.
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7
Electrical connections
7.1
Special safety instructions
DANGER
Live components - Risk of electric shock!
In the case of improper installation, accidents or material damage may result from noncompliance with the safety instructions. Note:
•
High mains voltage and high DC voltage from solar modules.
•
The unit may only be connected with the power supply to the solar inverter switched off.
•
The solar inverter must be isolated safely from the PV generator and the grid.
•
Switch off external isolation provisions. Secure to prevent restarting.
•
Verify safe isolation from power supply.
•
Earth and short-circuit.
•
Even with the AC and DC disconnectors turned off, dangerous voltage levels may be present in the solar inverter. This is the case if:
•
-
No external isolation facility is installed and turned off.
-
The DC link capacitors are still charged. Wait for some minutes until the DC link capacitors have discharged before starting to work at the solar inverter.
Using suitable protective equipment, secure live components in the work area to prevent
contact.
Depending on the power class, details of the electrical connection may differ from the layout
shown above.
Lightning protection
The DC and AC side of the solar inverters are protected by type 2 surge arresters against overvoltage. In
order to achieve lightning protection as per DIN VDE 0185-4, additional lightning arresters must be installed
on the building or in the plant.
Tools
For electrical connection provide the following tools:
Stripping tool
Crosshead screw driver
Slotted screwdriver
Torx screw driver
Allen wrench
Torque wrench
Cable installation
The cables must be prepared properly by the operator before connection, i.e. sufficient length and crosssection.
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35
7.2
Preparing the solar inverter for connection
Figure 7-1: Disassembly of base sheets
1. For cable entry, any base sheet can be removed. This is only required if no cable conduit is provided in
the foundation for guiding the cables into the solar inverter from below. Remove the base sheet in the
rear part of the solar inverter. If cables are to enter from the side, the side base sheet must be removed.
2. If the cables enter from the side/rear, cut suitable holes in the base sheet for the cable glands.
Figure 7-2: Disassembly of bottom sheet (only required in the case of RPS 450-120/170)
3. Remove the bottom sheets in the rear part of the solar inverter.
4. Pull the connecting cables into the solar inverter.
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Figure 7-3: Assembly of bottom plate
5. For strain relief, fix the feeder cables to the cable clamp rails using suitable cable clamps made of aluminium.
6. Using the supplied foamed material seal, seal the open area in the solar inverter. All cable entries must
be sealed tightly in order to prevent intake of unfiltered air.
7. Fix the base sheets again.
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7.3
Execution of electrical connection
7.3.1 Notes
NOTE
Damaging of solar inverter
•
The values specified in "Technical data" for maximum DC input voltage and maximum DC
input current must not be exceeded. Otherwise the solar inverter may be damaged.
•
When connecting the DC cables ensure that the polarity of the solar modules matches
the polarity of the DC connections. Prevent short circuits between DC+ and DC-.
7.3.2 Circuit diagrams
You will find the relevant circuit diagrams on the inside of the solar inverter door.
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7.3.3 RPS 450-030
Figure 7-4: Connection RPS 450-030
1
PE connection
7
AC connection L3
2
DC connection -
8
AC connection L2
3
DC connection -
9
AC connection L1
4
DC connection +
10
PE connection
5
DC connection +
11
Control voltage L0
6
PE connection
12
Control voltage L10
Before connecting the solar modules, verify if the voltage value of the solar modules as specified by the
manufacturer match the actual values. When measuring the voltage, note that solar modules supply a higher
DC voltage if the insolation remains the same while temperatures drop.
7.3.3.1
DC connection
•
The PV generator is connected to terminals DC- and DC+.
•
Use wire-end ferrules for connection.
•
Ensure that the cross-section and voltage resistance of the cables is sufficient.
•
Note the maximum cable cross-section.
•
Do not exceed the specified tightening torques.
•
Conform to the norm VDE 0100-712 an external load break switch must be installed on the DC voltage
side between photovoltaic generator and solar inverter.
DC connection
Max. cable cross section
mm2
Tightening torque
Nm
35
3,2 … 3,7
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39
7.3.3.2
AC connection
•
The PV generator is connected to terminals L1, L2, L3, PE.
•
Make sure to connect the AC cables considering the correct phase sequence to obtain a clockwise field
of rotation at the terminals.
•
Use wire-end ferrules for connection.
•
Ensure that the cross-section and voltage resistance of the cables is sufficient.
•
Note the maximum cable cross-section.
•
Note that the cross-section of PEN or PE is sufficient.
•
Do not exceed the specified tightening torques.
AC connection
Max. cable cross section
mm2
Tightening torque
Nm
Recommended back-up fuse
A
40
40
16
1,5 … 1,8
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7.3.4 RPS 450-060
Figure 7-5: Connection RPS 450-060
1
PE connection
7
AC connection L3
2
DC connection -
8
AC connection L2
3
DC connection -
9
AC connection L1
4
DC connection +
10
PE connection
5
DC connection +
11
Control voltage L0
6
PE connection
12
Control voltage L10
Before connecting the solar modules, verify if the voltage value of the solar modules as specified by the
manufacturer match the actual values. When measuring the voltage, note that solar modules supply a higher
DC voltage if the insolation remains the same while temperatures drop.
7.3.4.1
DC connection
•
The PV generator is connected to terminals DC- and DC+.
•
Use wire-end ferrules for connection.
•
Ensure that the cross-section and voltage resistance of the cables is sufficient.
•
Note the maximum cable cross-section.
•
Do not exceed the specified tightening torques.
•
Conform to the norm VDE 0100-712 an external load break switch must be installed on the DC voltage
side between photovoltaic generator and solar inverter.
DC connection
Max. cable cross section
mm2
Tightening torque
Nm
95
15 … 20
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41
7.3.4.2
AC connection
•
The PV generator is connected to terminals L1, L2, L3, PE.
•
Make sure to connect the AC cables considering the correct phase sequence to obtain a clockwise field
of rotation at the terminals.
•
Use wire-end ferrules for connection.
•
Ensure that the cross-section and voltage resistance of the cables is sufficient.
•
Note the maximum cable cross-section.
•
Note that the cross-section of PEN or PE is sufficient.
•
Do not exceed the specified tightening torques.
AC connection
Max. cable cross section
mm2
Tightening torque
Nm
Recommended back-up fuse
A
42
42
50
6…8
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7.3.5 RPS 450-120/170
1
2
+ -
3
4
5
9
8
7
6
Figure 7-6: Connection RPS 450-120/170
1
DC connection +
6
PE connection
2
DC connection -
7
AC connection L3
3
PE connection
8
AC connection L2
4
Control voltage L0
9
AC connection L1
5
Control voltage L10
Before connecting the solar modules, verify if the voltage value of the solar modules as specified by the
manufacturer match the actual values. When measuring the voltage, note that solar modules supply a higher
DC voltage if the insolation remains the same while temperatures drop.
7.3.5.1
DC connection
1. Pull off the two left covers of the DC main switch.
2. Connect the positive pole and the negative pole of the PV field to the terminals of the DC main switch.
After connection of a pole, fix its cover before connecting the other pole.
Q10
wmax
+ -
dmin
Figure 7-7: DC connection cable lug sizes/distances
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43
Figure 7-8: DC connection RPS 450-120/170 with two cables per pole
3. After installation, the covers of the DC main switch must be fixed again.
4. Between the fixed cable lugs at the positive and negative pole, the specified minimum distance dmin must
be kept.
5. Do not exceed the maximum width wmax of the cable lugs.
•
Use cable lugs for connection.
•
Ensure that the cross-section and voltage resistance of the cables is sufficient.
•
Note the maximum cable cross-section.
•
Do not exceed the specified tightening torques.
DC connection
RPS 450
-120
Bolt
M8 x 25
-170
Bolt
M10 x 30
mm
10
10
mm
Nm
26
15 … 22
34
30 … 44
Fixture
Minimum distance between cable
lugs dmin
Max. width of cable lugs wmax
Tightening torque
7.3.5.2
AC connection
•
Mains connection is performed directly at the main switch.
•
Make sure to connect the AC cables considering the correct phase sequence to obtain a clockwise field
of rotation at the terminals of the AC main switch.
•
Use wire-end ferrules for connection.
•
Ensure that the cross-section and voltage resistance of the cables is sufficient.
•
Note the maximum cable cross-section.
•
Note that the cross-section of PEN or PE is sufficient.
•
Do not exceed the specified tightening torques.
AC connection
RPS 450
-120
Max. cable cross section
95
mm2
Max. tightening torque
Nm
14
Recommended back-up fuse
A
200
44
44
-170
120
14
250
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7.3.6 Control voltage
Depending on the design of the solar inverter, the 230 V power supply for the solar inverter controller can
be generated internally or supplied via a connected external power source.
If an internal 230 V power supply is available, no external power supply may be connected.
An external 230 V power supply must be connected to the terminal provided for this purpose. Power must
be supplied from a source designed for this purpose. The operator must ensure that the 230 V power supply
is protected by means of a 16 backup fuse.
Internal power supply for controller
A control transformer is installed. Power supply for the controller of the solar inverter is tapped internally
from the AC mains supply. No power supply may be connected to the control voltage terminals.
External power supply for controller
A control transformer is not installed.
•
Connect an external 230 V/50 Hz power supply (Pmin = 400 W) to the terminals designated for that purpose (L10, L0, PE).
Connection
Max. cable cross section
mm2
Max. tightening torque
Nm
Recommended back-up fuse
A
2.5
0.6
16
Use wire-end ferrules.
Protect the external 230 V power supply by means of a 16 A back-up fuse.
The following components are connected to the 230 V power supply:
-
Contactors
-
Insulation monitoring
-
Grid monitoring
-
Electrical cabinet fan
-
Options, extensions
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7.3.7 Communication
Solar inverters can be connected to form a bus system. The bus structure is linear. Via a bus Master, up to
30 frequency inverters can be addressed. This enables communication connection to a data logger RPSlog.
Additionally, solar inverter data can be polled and set during operation via the bus system by means of a PC
or a PLC.
•
A twisted and shielded cable is to be used for the RS485 bus line.
•
The shield must be a braided shield (no foil shield).
•
The shield is to be connected to PE properly on both sides (large contact surface).
•
The so-called semi-duplex/2-wire method is the transmission method used.
7.3.8 RS485 assembly CM-485T
Figure 7-9: RS485 assembly
The RS485 assembly can be found on the frequency inverter AEC.
For details on the pin assignment, refer to the following table
Terminal
1
2
3
4
5
6
7
Bus connector X310 CM-485T (7-pin terminal strip)
Name
Function
A
Short-circuit proof and functionally insulated; max. current 60 mA
A’
Bridge from pin 1 for cable loops
B
Short-circuit proof and functionally insulated; max. current 60 mA
B’
Bridge from pin 3 for cable loops
+5 V
Supply voltage interface converter +5 V
0V
Earth / GND
PE
Shield
The connection of the RS485-Interface is done via terminal X4.2 which can be found in the bottom area of
the cabinet. The shield should be connected via the shield terminal to the designated shield busbar. More
details of wiring can be found in the circuit diagram which is enclosed to the cabinet.
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-X4.2
1 2 3 4
Figure 7-10: RS-485 connection terminal block
Details of the assignment of terminal block X4.2 are listed in the following table.
Terminal
1
2
3
4
Name
A
A’
B
B’
Terminal block X4.2
Function
Short-circuit proof and functionally insulated; max. current 60 mA
Bridge from pin 1 for cable loops
Short-circuit proof and functionally insulated; max. current 60 mA
Bridge from pin 3 for cable loops
7.3.9 Bus termination
The physically first and last client must be terminated, i.e. provided with a bus termination resistor. In the
case of the CM-232 and CM-485, you can use DIP switch S1 to that end, see Figure 7-9: RS485 assembly”.
This is a passive termination.
By default, the bus termination is OFF
NOTE
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•
Ensure proper bus termination. Otherwise, communication via the RS485 interface is not
possible.
•
Active termination is permissible only once per network. Termination via an external circuit and the DIP switch at the same time is not permissible.
•
Ensure that the GND is not interrupted. In practice, this result in a better fault behaviour.
•
The terminals for signals A and B are parallel. This enables wiring of several inverters.
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47
Solar inverter 1
Solar inverter 2
Solar inverter 20
Termination OFF
Termination OFF
Termination OFF
A
B
A
1 2 3 4
B
A
1 2 3 4
B
1 2 3 4
Data logger
RS485-A
1 2 3 4
-X4.2
B
-X4.2
A
-X4.2
Termination ON
max. 1000 m
Figure 7-11: Wiring example
NOTE
•
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48
With a data logger RPS log it is possible to record data from up to twenty solar inverters.
For details on the data logger, refer to the separate RPSlog1000 user manual.
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8
Operation
8.1
Special safety instructions
DANGER
Live components - Risk of electric shock!
•
When shutting down the plant, note that an active power source is connected. Depending on the operating status, voltage from the PV generator or the solar inverter may be
present.
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•
The control switch is no isolating device. By turning the solar inverter off via the control
switch, the solar inverter is not disconnected from power supply of the PV field. For full
disconnection, all main switches and external isolating devices must be opened.
•
High DC voltages (without zero transition) can cause light arcs and damage components
in case of malfunctions, improper installation or improper handling of plug contacts and
fuses.
•
The short-circuit current of the PV field depends on the insolation and only slightly higher
than the maximum operating current. Short circuits in the plant will not always result in
disconnection by fuses.
•
The non-grounded IT grid of the PV field may be grounded unintentionally in case of a
defect. Occurrence of another defect can cause a short circuit.
•
For easy disconnection of PV field in case of a defect, e.g. short circuit, install additional
external DC isolating devices for each input close to the solar inverter.
•
Before connection, check the cables for any damage. Replace any defective cables.
•
Note the warning signs.
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8.2
Control elements
8.2.1 RPS 450-030/060
Figure 8-1: Control elements RPS 450-030/060
Control elements RPS 450-030/060
1
Control unit "KP500", parameterization and display device for:
- Setting of parameters for operating behavior
- Display of measured and operating values
- Error diagnosis
2
Control switch "Start/Stop"
3
Illuminated "Reset" button
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8.2.2 RPS 450-120/170
Figure 8-2: Control elements RPS 450-120/170
Control elements RPS 450-120/170kwp
1
Control unit KP500, parameterization and display device for:
- Setting of parameters for operating behaviour
- Display of measured and operating values
- Error diagnosis
2
Control switch Start/Stop
3
Illuminated reset button
4
AC main switch for cutting off the connection to the grid
5
DC main switch for cutting off the connection to PV field
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8.3
Control unit "KP500"
A
B
C
F
D
E
G
J
Figure 8-3: Control unit
Keys
F
G
No function.
No function.
Used for navigating in the menu structure and selecting parameters.
Increasing/decreasing of parameter values.
ENT
Used for opening parameters or switching to another menu within the menu structure.
Confirmation of the selected function or the set parameter.
ESC
Used for aborting parameters or switching back to the previous menu within the menu
structure. Canceling the function or resetting the parameter value.
FUN , ▲ (pressed one after the other): Display of last parameter (highest number),
FUN
FUN , ▼ (pressed one after the other): Display of first parameter (lowest number).
Display
Three-digit 7-segment display to show the parameter number.
One-digit 7-segment display, e.g. display of the active data set.
Display of the selected menu branch:
VAL
Display actual values.
PARA
Selection of parameters and adjustment of parameter values.
CTRL
No function.
CPY
Copy parameters via the control unit:
ALL
All the parameter values are copied.
Act
Active parameter values are copied only.
FOr
Control unit memory is formatted and deleted.
Status and operating messages:
WARN Warning about a critical operating behavior.
FAULT Message indicating that the unit was switched off due to a fault.
RUN
Flashing: signals readiness for operation.
Lights up: signals that the unit is operating and the output stage is enabled.
REM
Active remote control via interface connection.
F
Function switch-over with the FUN key.
Five-digit 7-segment display for display of parameter value and sign.
Physical unit of the parameter value displayed.
52
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A
J
B
C
D
E
52
RUN
STOP
▲ ▼
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8.3.1 Menu Structure
Menu branch – VAL
Display of actual values.
Menu branch – PARA
Display and edit parameters.
Menu branch – CPY
Copy parameters.
Figure 8-4: Menu structure control unit
8.4
Menu branch – CTRL
No function.
First commissioning after connection
8.4.1 RPS 450-030/060
Before first commissioning after connection of the solar inverter, the following must be checked/carried out.
•
Electrical installation was carried out according to chapter 7 "Electrical connections" and the supplied
circuit diagrams.
•
The control switch in the door is in "Stop" position".
•
All fuses and circuit breakers are switched on.
•
Rated values for mains voltage and mains frequency are complied with at AC mains connection. See
chapter 4 "Technical data". The phase sequence is correct. Clockwise phase sequence is present.
•
The maximum values for DC input voltage and DC input current are kept. See chapter 4 "Technical
data".
•
The poles of the PV field are connected to the correct poles of the DC main switch. Positive and negative
pole are not exchanged.
•
In an insulation test, it was verified that the PV field does not have an earth fault. The measurements of
the insulation resistance between the positive pole of the PV generator and PE as well as between the
negative pole of the PV generator and PE must result in a value > 50 kΩ.
•
For devices with earth fault control make sure that the high performance circuit breaker is switched on.
•
The solar inverter is connected to the equipotential bonding system at the place of installation or in the
equipment room.
•
All cables are connected to the terminals. The screws of the terminals must be checked for tight fit.
•
After transport from a cold environment to an equipment room, condensation water can form. Before
commissioning, the solar inverter must be dry.
•
In the case of an external power supply for the controller: The external power supply for the controller is
connected.
•
There may be no objects on the solar inverter, e.g. tools.
•
Close the doors of the solar inverter.
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•
Close external disconnecting devices.
•
In the case of using a data logger with several solar inverters, it is necessary to adjust the NodeID of
the communication interface of each solar inverter. See chapter 9.9 “Communication interface for system monitoring”.
8.4.2 RPS 450-120/170
Before first commissioning after connection of the solar inverter, the following must be checked/carried out.
•
Electrical installation was carried out according to chapter 7 "Electrical connections" and the supplied
circuit diagrams.
•
AC main switch and DC main switch at door are switched off.
•
The control switch in the door is in "Stop" position".
•
All fuses and circuit breakers are switched on.
•
Rated values for mains voltage and mains frequency are complied with at AC mains connection. See
chapter 4 "Technical data". The phase sequence is correct. Clockwise phase sequence is present.
•
The maximum values for DC input voltage and DC input current are kept. See chapter 4 "Technical
data".
•
The poles of the PV field are connected to the correct poles of the DC main switch. Positive and negative
pole are not exchanged.
•
In an insulation test, it was verified that the PV field does not have an earth fault. The measurements of
the insulation resistance between the positive pole of the PV generator and PE as well as between the
negative pole of the PV generator and PE must result in a value > 50 kΩ.
•
For devices with earth fault control make sure that the high performance circuit breaker is switched on.
•
The solar inverter is connected to the equipotential bonding system at the place of installation or in the
equipment room.
•
All cables are connected to the terminals. The screws of the terminals must be checked for tight fit.
•
After transport from a cold environment to an equipment room, condensation water can form. Before
commissioning, the solar inverter must be dry.
•
In the case of an external power supply for the controller: The external power supply for the controller is
connected.
•
There may be no objects on the solar inverter, e.g. tools.
•
Close the doors of the solar inverter.
•
Close external disconnecting devices.
•
In the case of using a data logger with several solar inverters, it is necessary to adjust the NodeID of
the communication interface of each solar inverter. See chapter 9.9 “Communication interface for system monitoring”.
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8.5
Commissioning
8.5.1 RPS 450-030/060
NOTE
Damaging of solar inverter
•
The DC voltage must not exceed the maximum input voltage of 900 V. The solar inverter may be damaged.
•
In any case, follow the right order when switching the solar inverter on.
Figure 8-5: Control elements RPS 450-030/060
1. Adjust the Start up behaviour and Shut down behaviour according to the technical data of the PV generator (see chapter 9.4 "Start up behaviour" and 9.5 "Shut down behaviour").
2. Turn the solar inverter on via the control switch (2) ("Start" position).
If an error is displayed on the control unit after start of the inverter, correct the error following the instructions in chapter 11 "Error diagnosis".
If the DC mains switch is switched on before the AC main switch, the error F0405 "Grid failure" is displayed.
It can take up to one minute after enabling the solar inverter till proper work will be signalled.
If the inverter works properly, the green signal lamp in the door will be on and the control unit, (in default
settings) will display the parameter Active power 213.
Additional actual values can be displayed on the control unit. The actual value parameters are described in
chapters 9.15 "Actual values of solar inverter", 9.16 "Actual values of frequency inverter" and 9.17 "Actual
mains values".
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55
8.5.2 RPS 450-120/170
NOTE
Damaging of solar inverter
•
The DC voltage must not exceed the maximum input voltage of 900 V. The solar inverter may be damaged.
•
In any case, follow the right order when switching the solar inverter on.
Figure 8-6: Control elements RPS 450-120/170
1. Switch AC main switch (4) on.
2. Switch DC main switch (5) on.
3. Adjust the Start up behaviour and Shut down behaviour according to the technical data of the PV generator (see chapter 9.4 "Start up behaviour" and 9.5 "Shut down behaviour").
4. Turn the solar inverter on via the control switch (2) ("Start" position).
If an error is displayed on the control unit after start of the inverter, correct the error following the instructions in chapter 11 “Error diagnosis”.
If the DC mains switch is switched on before the AC main switch, the error F0405 "Grid failure" is displayed.
It can take up to one minute after enabling the solar inverter till proper work will be signalled.
If the inverter works properly, the green signal lamp in the door will be on and the control unit, (in default
settings) will display the parameter Active power 213.
Additional actual values can be displayed on the control unit. The actual value parameters are described in
chapters 9.15 "Actual values of solar inverter", 9.16 "Actual values of frequency inverter" and 9.17 "Actual
mains values".
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8.6
Decommissioning
WARNING
Live components - Risk of electric shock!
Even with isolating devices switched off, dangerous voltage is present in the solar inverter.
•
When shutting down the solar inverter, note that an active power source is connected.
Depending on the operating status, voltage from the PV generator or the solar inverter
may be present.
•
The control switch is no isolating device. By turning the solar inverter off via the control
switch, the solar inverter is not disconnected from power supply of the PV field. For full
disconnection, all main switches and external isolating devices must be opened.
CAUTION
Danger of burns due to hot surfaces!
Even some time after shutdown of the solar inverter, certain components, e.g. heat sink,
transformer, fuse, sine filter may have a high temperature.
•
Don't touch the surfaces directly after shutdown. Wear safety gloves where necessary.
8.6.1 RPS 450-030/060
Figure 8-7: Control elements RPS 450-030/060
1. Turn the solar inverter off via the control switch (2) ("Stop" position).
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8.6.2 RPS 450-120/170
NOTE
Damaging of solar inverter
If you must shut the solar inverter down, follow the following instructions:
•
Only actuate the main switches without load. Always turn the control switch off before.
•
In any case, follow the right order when switching the solar inverter off.
Figure 8-8: Control elements RPS 450-120/170
1. Turn the solar inverter off via the control switch (2) ("Stop" position).
2. Switch AC main switch (4) off.
3. Switch DC main switch (5) off.
Doors can only be opened with the main switches turned off.
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8.7
Emergency shutdown
8.7.1 RPS 450-030/060
1. Turn the solar inverter off via the control switch ("Stop" position).
2. Disconnect the solar inverter from the PV generator and the grid.
3. Switch off external isolation provisions. Secure to prevent restarting.
8.7.2 RPS 450-120/170
1. Turn the solar inverter off via the control switch ("Stop" position).
2. Switch AC main switch off.
3. Switch DC main switch off.
4. Disconnect the solar inverter from the PV generator and the grid.
5. Switch off external isolation provisions. Secure to prevent restarting.
8.8
Final decommissioning/disassembly/disposal/recycling
When it comes to final decommissioning/disposal of the solar inverter, individual components
and/or auxiliary and operating materials, ensure that all parts/materials are disposed of in an
environmentally compatible manner.
Ensure that all metal and plastic parts are recycled.
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9
Parameterization
As an alternative to the control unit, you can also use the optional PC user software VPlus for parameterization, monitoring and maintenance of the solar inverter.
The parameters are divided in 3 control levels.
The parameter Control level 28 defines the relevant control level.
-
Control level 1 provides inverter information, actual values, an error list and contains parameters with
which the operating behavior can be influenced.
-
Control level 2 contains additional parameters, actual values and functions.
-
Control level 3 contains additional error information, functions and actual values. Additionally, it enables
fundamental changes of the operating behavior. Setting of parameters in this control level is not required and will not be fully covered by this user manual.
No.
28
9.1
Parameter
Description
Control level
Min.
1
Max.
3
Setting
Factory. setting
1
Control level
1
Selecting the language
With parameter Language 33, you can set the language in control level 1. The error messages and the
loaded parameters (if PC user software is used) are displayed in the selected language.
No.
Parameter
Description
33
Language
9.2
Setting
0 - German
1 - English
2 - Italian
3 - Spanish
Setting
Factory setting
Control level
1
1
Set password
As a protection against unauthorized access, the parameter Set password 27 can be set such that anyone
who wants to change parameters must enter this password. A change of parameter is only possible if the
password in entered correctly.
To deactivate password protection, enter "0" in parameter 27.
No.
27
60
60
Parameter
Description
Set password
Min.
0
Max.
999
Setting
Factory setting
0
RPS 450
RPS 450
Control level
1
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9.3
Display parameters
In menu PARA of the control unit, several actual values and statuses are available in addition to various
parameters.
The available display parameters can be read via the control unit or the PC user software. Write access is
only possible via parameter User name 29.
9.3.1 Inverter data
The serial number can be set via parameter Serial number 0.
9.3.2 Installed optional modules
Via parameter Optional modules 1, you can find out which optional modules are installed in the frequency
inverter, e.g. Extension Module EM or Communication Module CM.
9.3.3 Software version
Via parameter FI software version 12, you can check the version number of the frequency inverter software.
9.4
Start up behaviour
Before the solar inverter is connected to the grid at sunrise, the inverter determines the power currently
produced by the PV field. To that end, the solar inverter must be enabled by means of the control switch
and no error may be present.
Power measurement is activated as soon as the DC input voltage exceeds the value V DC Start 830. The
value must be set such that the solar inverter can be switched on even in high module temperatures.
The main contactor is switched on if the power produced by the PV field is higher than the power loss of the
solar inverter in no-load mode. In the case of low insolation, the DC voltage can normally not withstand high
loads. If the DC input voltage drops below a certain threshold, the power measurement is stopped. The start
procedure starts again.
No.
830
Parameter
Description
V DC Start
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Min.
450.0 V
Max.
750.0 V
Setting
Factory setting
500.0 V
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Control level
1
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61
9.5
Shut down behaviour
When insolation gets weaker in the evening, the power produced by the PV field drops. In order to prevent
tapping power from the 3-phase grid, the main contactor is to drop out as soon as the power produced by
the PV field is no longer sufficient to cover the losses. To that end, the AC power, DC power and DC input
voltage are monitored during operation.
If the DC input voltage is lower than the reference value set with U DC shutdown limit 837, feed-in operation is stopped.
Feed-in operation is also stopped if the power drops below the following adjustable reference values:
P switch off limit AC 838 for AC power and
P switch off limit DC 834 for DC power.
-
The power shutdown limits can be deactivated by entering 0.0.
The optimum shutdown point can be determined more precisely via the DC power.
In the case of solar inverters with DC current measurement, the AC shutdown threshold should be deactivated, P switch-off limit AC 838 = 0.0.
In order to prevent actuation of the main contactor during short power drops, you can set up a shut down
delay via parameter Off time 839. The power must drop the limits set via parameters 837, 838 or 834 for
this time before operation is stopped. Restarting can be delayed by an adjustable time via the Turn on delay
time 840.
No.
834
837
838
839
840
Parameter
Description
P Switch Off Limit DC
V DC Switch Off Limit
P Switch Off Limit AC
Off Time
Turn on Delay Time
RPS 450
62
Max.
20.00 kW
650,0 V
20.00 kW
20 min
30 min
Setting
Fact. sett.
See below.
450,0 V
See below.
5 min
10 min
Factory settings of shutdown limits
-030
-060
-120
P Switch Off Limit DC 834
P Switch Off Limit AC 838
62
Min.
0.00 kW
405,0 V
0,00 kW
1 min
1 min
1,00 kW
1,00 kW
1,00 kW
1,00 kW
RPS 450
RPS 450
1,00 kW
1,00 kW
Control level
2
1
2
2
2
-170
1,00 kW
1,00 kW
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9.6
Operating statuses
Switch-on behaviour
Switch-off behaviour
Standby
Turn On Delay Time 840
Enabled by
control switch?
no
Main Contactor off
ja
Stop feed
Initialisation
Udc >
U DC Start 830 ?
no
For at least the Off Time 839
the power of voltage falls below:
- P Switch off Limit DC 834
- P Switch off Limit AC 838
- U DC Switch off Limit 837
ja
no
Power estimate
Udc > U ZKmin - U DC Switch off
yes
distance
no
Off Time 839
ja
exeeded?
Start of timer
for Off Time 839
yes
yes
no
Main Contactor on
Pdc < P shutdown limit DC 834 ? or
Pac < P shutdown limit AC 838 ? or
Udc < U DC shutdown limit 837 ?
Wait 6 s
Reset Off Time
Start feed
MPP Tracking
Actual value
Udc: DC-link voltage 222
UZKmin: min. DC-link voltage
Actual value
Pdc: DC Power 855
Pac: Active power 213
In the case of an error, feed-in is stopped and the error is displayed on the control unit.
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9.7
Voltage controller
NOTE
Damaging of solar inverter
•
The voltage controller may only be set up by qualified staff. Wrong setup can result in
damage.
The following characteristics of a PV module show the DC output current (module current) as a function of
the DC voltage (module voltage). Since the current remains fairly constant at first and drops in the area of
the graph with higher voltage, there is a maximum power operating point. The operating point at which the
modules produce maximum power is also referred to as MPP (Maximum Power Point).
By proper setting of the DC voltage it is tried to operate the PV modules at MPP. The DC voltage is adjusted
by means of the solar inverter.
If insolation changes or the temperature of the PV modules changes, the DC voltage at which power output
is at its maximum will also change.
Module current [A]
Module current [A]
Cell temperature: 25 °C
20 °C
30 °C
40 °C
50 °C
60 °C
Solar radiation:
1000 W/m²
2
1000 W/m
2
800 W/m
2
600 W/m
2
400 W/m
2
200 W/m
Module voltage [V]
Module voltage [V]
Figure 9-1: I=f(U), insolation const.
Module current [A]
w
Po
ic
ist
er
t
ac
ar
ch
Module voltage [V]
Module power [W]
MPP
ge
Figure 9-2: I=f(U), cell temp. const.
PMPP
Current-voltage-characteristic
IMPP
ta
ol
-v
r
e
MPP
UMPP
Figure 9-3: I=f(U), P=f(U)
The solar inverter contains a voltage controller which sets the DC voltage automatically such that the modules are operated at MPP.
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9.8
Power limitation
Parameters Max. output current 803 and Max. active power 812 are used for power limitation. The smaller
of the two values is used. The max. current (frequency inverter side) or power which may be fed to the grid
are entered. If the output value or current reach the adjusted value in strong insolation, MPP control is deactivated. The operating point is changed such the limits set with parameters Max. output current 803 and
Max. active power 812 are not exceeded. MPP is activated again if the values drop below the configured
limits.
Parameter
No.
Description
803 Max. Output Current
812 Max. Active Power
9.9
Min.
Setting
Max.
Factory settings
depending on type
depending on type
Control level
2
2
Communication interface for system monitoring
By default, interfaces CM-232 and CM-485 are set as follows:
Parameter
Description
No.
10
Baud rate
394
RS232/RS485 NodeID
395
Protocol type
Setting
Factory setting
4 - 19200 Baud
1
0 - VABus
If other settings are required, the communication modules are to be configured via the corresponding software parameters.
The baud rate must be the same in all clients. The NodeID must be different! Identical NodeIDs result in a
communication fault!
9.9.1 Setting the Baud Rate
The transmission speed of the CM-485 is set via parameter Baud rate 10.
The transmission speed of the CM-485 depends on various application-specific parameters. For example, the
cable length limits the transmission speed due to signal propagation delays. With the additional "repeater"
assemblies, the max. cable length can be increased.
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Baud rate 10
Function
max. line length
1 – 2400 Baud
Transmission rate 2400 Baud
2400 m
2 – 4800 Baud
Transmission rate 4800 Baud
2400 m
3 – 9600 Baud
Transmission rate 9600 Baud
1200 m
4 – 19200 Baud
Transmission rate 19200 Baud
1200 m
5 – 57600 Baud
Transmission rate 57600 Baud
600 m
6 – 115200 Baud
Transmission rate 115200 Baud
300 m
All bus clients must be set to the same baud rate.
Baud rate changes are only active after a reset of the frequency inverter via the software or
Mains Off/On.
In the case of the software reset, proceed as follows:
•
Via the control unit KP500, open parameter Program(ming) 34.
•
Set parameter value "123".
•
Confirm by pressing "ENT".
After the reset, the frequency inverter is initialized and is ready for operation after a few seconds.
9.9.2 Setting the Node Address
The node address of the CM-485 is set via parameter RS232/RS485 NodeID 394. Up to 30 frequency inverters can be used at the RS485 bus. The frequency inverters are assigned unambiguous addresses in the
range from 1 to 30.
Parameter
No.
394
Setting
Description
RS232/RS485 NodeID
Min.
Max.
Factory settings
1
30
1
For operation with the RS485 module CM-485, each client must be assigned an address.
Bus addresses may only be assigned once, i.e. no double assignments.
An address change is effective immediately, i.e. without a restart of the frequency inverter.
9.9.3 Protocol
The VABus protocol is the standard protocol of BONFIGLIOLI VECTRON. It defines and describes the communication via the serial interfaces RS232/RS485. When they leave the factory, the frequency inverters are
set to VABus protocol. Communication with the data logger RPSlog is only possible via the VABus protocol. If
data capturing and monitoring is to be realized by means of an external product, other protocol types can be
used for this. The protocol types are described in detail in the communication module user manual.
Via parameter Protocol type 395 you can view and set the protocol type:
Protocol type 395
0 - VABus
Function
BONFIGLIOLI VECTRON Standard protocol (default setting)
1 - P-Bus
User-specific bus protocol
2 - Modbus- RTU
3 - Modbus-ASCII
66
66
Please refer to the Modbus user manual.
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Changes of the parameter Protocol type 395 take effect immediately, i.e. without a restart of
the frequency inverter.
If the wrong protocol is selected, communication via CM-232/CM-485 is not possible.
In this case correct the protocol type using the control unit KP500.
9.10
Feed-in management
According to the law on renewable energy (EEG), operators of PV plants are obliged to equip plants with a
power output of 100 kW with technical and operational provision for remote-controlled reduction of the
feed-in power in the case of grid overload and for retrieving the current actual feed-in power.
As regards the active power output, a distinction is made between power limitation by an external setpoint
and power limitation by mains overfrequency.
9.10.1
Power limitation by setpoint
In Power reduction mode 1025, you can specify an external source for power reduction. The power reduction through Max. active power 812 is maintained in all operating modes. This also applies in the case of
indirect power reduction through Max. output current 803 and Max. feedback current 805.
Parameter
Description
No.
1025
Power reduction mode
Setting
0 – OFF
1 – Reduction via
RS232/485
2 – Reduction via
system bus
Setting
Factory setting
Control level
1
3
If you select 0="Off", there will not be any additional power reduction.
If you select 1="Setpoint via RS232/485", there will be additional power reduction. The setpoint for reduction is specified in % via Power reduction reference value 1020 and refers to the AC Nominal power 1096.
The data logger RPSlog 1000 PM is connected directly with the ripple control transmitter of the utility company and transmits the current power reduction to the solar inverter while reading the solar inverter data.
For more information, refer to the RPSlog1000 PM user manual.
If you select 2="Setpoint via system bus", there will be additional power reduction. The setpoint for reduction is specified in % via S. power reduction system bus 1027 and refers to the AC Nominal power 1096.
Via Power reduction timeout 1026, you can configure the time which may pass between two write accesses
to parameter Power reduction reference value 1020 before the solar inverter resets the internal setpoint to
100 % automatically.
No.
1020
1026
Parameter
Description
Power reduction reference value
Power reduction timeout
1027
S. power reduction setpoint
Min.
0%
0 min
Max.
100%
1000 min
Selection
Setting
Factory setting
100 %
0 min
66-Reference percentage
Control level
3
3
3
In case of a power reduction ordered by the feed-in management system, the Feed-in power management
power reduction warning is set.
For setting of the warning, the following conditions must be met.
- the required power defined by the feed-in management is lower than the Max. active power 812
- the solar inverter could feed more power into the grid than the set power of the feed-in management.
9.10.2
Power limitation in case of overfrequency
Since there may be different requirements by utility companies, particularly in different European countries
and the US, the frequency limits and the power gradient can be parameterized.
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Via Power reduction at upper frequency limit 1030, the operation mode for power limitation in the case of
overfrequency is set.
No.
1030
Parameter
Description
Power reduction at upper frequency limit
Setting
0 – OFF
1 – ON
Setting
Factory setting
Control level
1
3
In operation mode 0="Off", power limitation in case of overfrequency is deactivated.
In operation mode 1="ON", power will be reduced if the current frequency exceeds the parameter for Frequency start power reduction 1034. Power reduction is effected based on the Gradient for power reduction
1036 in %/Hz. The current power is frozen as the rated value for further power reduction. If the mains
frequency drops below the power increase frequency 1035, power reduction will be stopped.
No.
1034
1035
1036
68
68
Parameter
Description
Frequency start power reduction
Frequency stop power reduction
Gradient for power reduction
Min.
35,00 Hz
35,00 Hz
5,00
Max.
70,00 Hz
70,00 Hz
50,00
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RPS 450
Setting
Factory setting
50,20 Hz
50,05 Hz.
20,00
Control level
3
3
3
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9.10.3
Mains frequency monitoring
Via Mode lower-/upper frequency monitoring 1029, you can set the operation mode for internal overfrequency and underfrequency monitoring. In operation mode 0="Off", mains frequency monitoring is deactivated. In operation mode 1="On" the mains frequency is monitored for under/overfrequency (Parameters
1032 and 1033).
No.
1029
Parameter
Description
Mode lower-/upper frequency
monitoring
Setting
0 - OFF
1 - ON
Setting
Factory setting
Control level
1
3
If the current mains frequency drops below the set frequency threshold for Lower frequency limit 1032,
the solar inverter is disconnected from the grid, and error message F0421=Mains underfrequency is displayed.
If the current mains frequency exceeds the set frequency threshold for Upper frequency limit 1033, the
solar inverter is disconnected from the grid, and error message F0421=Mains overfrequency is displayed.
No.
1031
1032
1033
9.11
Parameter
Description
Rated mains frequency
Lower frequency limit
Upper frequency limit
Min.
35,00 Hz
30,00 Hz
30,00 Hz
Max.
65,00 Hz
70,00 Hz
70,00 Hz
Setting
Factory setting
50,00 Hz
47,50 Hz.
51,50 Hz
Control level
3
3
3
Electrical cabinet fan
The electrical cabinet fans are controlled via an relay output. By default, the relay output with parameter
Operation mode- Digital output 3 532 is linked to function "44-Electrical cabinet fan". However, it can also
be linked to various other functions.
If function "44-Electrical cabinet fan" is selected for Operation mode digital output 3 532, the fans are controlled depending on the heat sink temperature and the inside temperature of the frequency inverter.
The start temperature of the electrical cabinet fan can be controlled via parameters Switching Limit Heat
Sink Temp. 825 and Switching Limit Inside Temp. 826.
The temperature value at which the electrical cabinet fans are started is calculated from the type-dependent
temperature limit minus the adjusted warning limit.
If one of the two switching temperature values is reached, the electrical cabinet fan will be switched on even
if the other switching temperature has not been reached.
By default, the parameter is set to suitable values, i.e. no change of settings required.
Parameter
No.
Description
532 Op. Mode - Digital Output 3
Setting
Factory setting
44-Electrical cabinet fan
Control level
2
If function "100-On" is selected for Operation mode Digital output 3 532, the fans will be on permanently independent of the temperature.
Parameter
No.
Description
Switching Limit Heat Sink
825
Temp.
826 Switching Limit Inside Temp.
Min.
Max.
Setting
Factory setting
-35
0
-15 °C
2
-30
0
-15 °C
2
Control level
Tk: Heat sink temperature of frequency inverter Tk 255
Ti: Inside temperature of frequency inverter Ti 256
Setting of these parameters does not affect the frequency inverter fans.
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9.12
Error/warning behavior
9.12.1
Automatic error acknowledgement
If an error has occurred, it will be acknowledged automatically after the time set with parameter Delay Time
Auto Acknowl 836. After this, the solar inverter will restart automatically.
Parameter
Description
Delay Time Auto-Acknowl.
No.
836
Min.
1 min
Max.
20 min
Setting
Factory setting
5 min
Control level
2
The maximum number of errors which can be acknowledged automatically per day is set with parameter
Allowed No. of Auto-Acknowl. 835. If a setting is made for this parameter, the set number of error acknowledgements will be available again on this day, even if one or more errors have already been acknowledged automatically.
Parameter
Description
Allowed No. Of AutoAcknowl.
No.
835
9.12.2
Min.
Max.
Setting
Factory setting
Control level
0
20
15
2
Operation mode - Overvoltage protection
Via parameter Op. Mode overvoltage protection 828, you can set up the behaviour to be triggered after a
defect of a surge arrester.
If a defect is recognized,
-
Warning W8000 "Overvoltage protection" is displayed in setting "1 – Warning" (default setting)
-
error F0406 "Overvoltage protection" will be displayed and the solar inverter will be shut down in setting "2 – Error cut-off".
Parameter
Description
No.
Op. Mode overvoltage
protection
828
Selection
0 – Off
1 – Warning
2 – error cut-off
Setting
Factory setting
Control level
1 – Warning
2
Thanks to the visual signaling at the surge arresters, you can identify the component which is defective and
must be replaced.
9.12.3
Operation mode - Insulation monitoring
Via parameter Op. Mode Isolation monitoring 829, you can set how often the insulation of the PV generator
is to be checked. In setting "1 – Daily", the insulation will be checked once in the morning; if the insulation
resistance is in the permissible range, no insulation defects will be reported on this day. In setting "2 – Permanent", the insulation is monitored continuously.
In these settings, error F0404 "Isolation" will be displayed if an earth fault is identified in the PV generator.
No.
829
Parameter
Description
Op. Mode Isolation
monitoring
Selection
0 – Off
1 – Daily
2 – Permanent
Setting
Factory setting
Control level
2 – Permanent
2
Note
•
70
70
With integrated earth fault control the monitoring is done similarly.
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9.13
Intelligent current limits
The current limits to be set avoid inadmissible loading of the connected solar inverter and prevent an error
cut-off. The overload reserve of the frequency inverter can be used optimally by means of the intelligent
current limits, in particular in applications with dynamic load fluctuations. The criterion to be selected via the
parameter Operation Mode 573 defines the threshold to the activation of the intelligent current limit. The
parameterized rated current of the frequency inverter is synchronized as the limit value of the intelligent
current limits.
Operation mode 573
0 - Off
Function
The function is switched off.
1 - Ixt
Limitation to the overload of the frequency inverter (Ixt).
10 - Tc
Limitation to the maximum heat sink temperature (TC).
11 - Ixt + Tc
Operation mode 1 and 10 (Ixt + TC).
The threshold value selected via the parameter Operation Mode 573 is monitored by the intelligent current
limits. In the operation mode Heat sink temperature monitoring, the reduction of power selected with parameter Power Limit 574 is done when the limit value has been reached. The total time of the power reduction as a result of an increased motor or heat sink temperature contains not only the cooling time, but also
the additionally defined Limitation Time 575.
The definition of the power limit should be selected as small as possible in order to give the frequency inverter sufficient time to cool down. The rated power of the frequency inverter should be used as the reference.
No.
Parameter
Description
574 Power Limit
575 Limitation Time
Min.
Setting
Max.
Fact. sett.
40,00%
95,00%
80,00%
5 min
300 min
15 min
In the operation modes with overload reserve (Ixt) there is a reduction of the output current when the
threshold value is exceeded, with a distinction being made between long and short-term overload reserve.
After the short-term overload (1s) has been used up, the output current is reduced to the long-term overload current matching the present switching frequency. After the long-term overload current has been used
up (60s), the output current is reduced to the rated current which also depends on the switching frequency.
If the output current has already been reduced due to the fact that the long-term overload has used up, the
short-term overload is no longer available even if it has not been used up beforehand. The defined overload
reserve (Ixt) of the frequency inverter is available again after a power reduction lasting 10 minutes.
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9.14
Status
Operation of the frequency inverter is monitored continuously. The parameter Solar-Status 1089 enables
diagnosis of the inverter during operation.
The following table shows the values for Solar-Status 1089.
No.
1
2
Init
Wait for Init
3
4
5
6
8
9
10
11
12
13
14
15
16
Wait for grid management
Ready
Ready+warning
Undervoltage
Mains synchronization
MPP tracking
MPP Tracking+Warning
MPP maximum
MPP minimum
MPP+FastSearch
Fault
Fault+Warning
AutoQuit
9.15
No.
Status
Solar inverter is initialized
Solar inverter is waiting for release of initialization, e.g. delay
after MPP minimum shutdown.
Solar inverter is waiting for release by grid management.
DC voltage OK but no release.
DC voltage OK but no release, a warning is output.
DC voltage too low.
Magnetizing of transformer.
Tracking of optimum MPP point.
Tracking of optimum MPP point, a warning is output.
Power limitation, MPP point outside of maximum inverter power.
MPP point below shutdown threshold.
Quick MPP tracking, e.g. after grid failure
A fault has occurred
A fault has occurred, a warning is output.
There was a fault, but the fault is no longer present and is acknowledged automatically.
Actual values of solar inverter
Description
Actual values of solar inverter
Contents
222
DC link voltage
223
Modulation
244
Working Hours Counter
245
Operation Hours Counter
Current operating hours in which Udc > 250 V.
255
Heat Sink Temperature
Current heat sink temperature of frequency inverter
256
Inside Temperature
Current inside temperature of frequency inverter
259
Current Error
Error code
269
Warnings
Warning code
1089
Solar-Status
Status of solar inverter, see chapter 9.14.
72
72
1089
Current voltage in DC link
Output voltage referred to input voltage,
100% = grid input voltage
Current working hours in which the output stage of the inverter is
active
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9.16
Actual values of frequency inverter
Actual values of frequency inverters
Description
Contents
No.
211
R.m.s Current
Effective current of frequency inverter
212
Output Voltage
Output voltage of frequency inverter
855
DC Power
DC power
860
DC Current
Current captured via analog input 1
861
Active Current
Active current of frequency inverter
862
Reactive Current
Reactive current of frequency inverter
The actual values of the frequency inverter are measured values on the primary side of the transformer (on
frequency inverter side)
9.17
Actual mains values
Actual mains values
No.
Description
Contents
213
Active Power
Current calculated active power
850
Frequency
Current mains frequency
852
Power Supply Current
Mains current
853
Power Supply Voltage
Mains voltage
863
Current a
Mains current in phase A
864
Current b
Mains current in phase B
865
Current c
Mains current in phase C
866
Power Supply Voltage a
Mains voltage in phase A
867
Power Supply Voltage b
Mains voltage in phase B
868
Power Supply Voltage c
Mains voltage in phase C
869
Active Power a
Active power in phase A
870
Active Power b
Active power in phase B
871
Active Power c
Active power in phase C
875
Apparent Power a
Reactive power in phase A
876
Apparent Power b
Reactive power in phase B
877
Apparent Power c
Reactive power in phase C
879
Apparent Power
Mains reactive power
The actual value display considers the transformation ratio of the transformer.
Due to the error tolerances, it is possible that, in the case of low power values, the shown actual values are
not plausible.
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9.18
Actual value memory
The actual value memory enables monitoring of maximum and average values determined over a certain
period of time.
Actual value memory
No.
289
290
291
292
Designation
Description
Maximum heat sink temperature of frequency inverter reached
Peak Value Heat Sink Temp.
during working hours.
The calculated average heat sink temperature of the frequency
Average Value Heat Sink Temp. inverter. The temperature measurements for calculation of the
average value are performed every 5 minutes.
Maximum inside temperature of frequency inverter reached durInside temp. peak value
ing working hours.
The calculated average inside temperature of the frequency inPeak Value Inside Temperature verter. The temperature measurements for calculation of the
average value are performed every 5 minutes.
301
Energy, positive
The energy fed into the grid during working hours.
302
Energy, negative
The energy tapped from the grid during working hours.
The working hours can be read via parameter Working hours counter 244.
74
74
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9.19
Parameters
No.
Description
Parameters of solar inverter
Unit
Setting range Factory setting
10
27
28
33
394
395
532
Baud rate RS232/RS485
Set password
Control level
Language
RS232/RS485 NodeID
Protocol RS232/RS485
Op. mode digital output 3
-
Selection
0 … 999
1…3
Selection
1 … 30
Selection
Selection
573
Operation mode - Intelligent
current limits
Power limit
Limitation time
Max. output current
Max. active power
Switching Limit Heat Sink Temp.
Switching Limit Inside Temp.
Op. Mode overvoltage protection
Op. Mode isolation monitoring
V DC Start
P Switch Off Limit DC
Allowed No. of Auto-Acknowl.
Delay Time Auto-Acknowl.
V DC Switch Off limit
P Switch Off limit AC
Off time
Turn On Delay Time
Power reduction reference value
Power reduction mode
-
Selection
min
A
kW
°C
°C
V
kW
min
V
kW
min
min
%
-
40,00 … 95,00
5 … 300
depending on type
depending on type
-35 … 0
-35 … 0
Selection
Selection
450,0 … 750,0
0,00 … 20,00
0 … 20
1 … 20
405,0 … 650,0
0,00 … 20,00
1 … 20
1 … 30
0 … 100
Selection
min
574
575
803
812
825
826
828
829
830
834
835
836
837
838
839
840
1020
1025
1026
1027
1029
Power reduction timeout
S. power reduction system bus
Mode lower-/upper frequency
monitoring
1030 Power reduction at upper frequency limit
1031 Rated mains frequency
1032 Lower frequency limit
1033 Upper frequency limit
1034 Frequency start power reduction
1035 Frequency stop power reduction
1036 Gradient for power reduction
1096 AC nominal power
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Hz
Hz
Hz
Hz
Hz
kW
Chapter
5 – 57600 Baud
0
1
1 - English
1
0 - VABus
44- Electrical
cabinet fan
11 – Ixt + Tc
9.9.1
9.2
9
9.1
9.9.2
9.9.3
9.11
0
0
9.8
9.8
9.11
9.11
9.12.2
9.12.3
9.4
9.5
9.12.1
9.12.1
9.5
9.5
9.5
9.5
9.10.1
9.10.1
0 … 1000
80
15
depending on type
depending on type
-15
-15
1 - Warning
2 - Permanent
500
depending on type
15
5
450
depending on type
5
10
100
1 - Setpoint via
RS232/485
0
Selection
1 - ON
9.10.1
9.10.1
9.10.3
Selection
1 - ON
9.10.2
35,00 … 65,00
50
30,00 … 70,00
47,5
35,00 … 70,00
51,5
35,00 … 70,00
50,2
35,00 … 70,00
50,05
5,00 … 50,00
20
depending on type depending on type
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RPS 450
0
9.10.3
9.10.3
9.10.3
9.10.2
9.10.2
9.10.2
9.10.1
75
75
10
10.1
Maintenance and service
Special safety instructions
DANGER
Live components - Risk of electric shock!
In the case of improper maintenance and service, accidents or material damage may result
from non-compliance with the safety instructions. Note:
•
High mains voltage and high DC voltage from solar modules.
•
Maintenance work may only be performed with the power supply to the solar inverter
switched off.
•
The solar inverter must be isolated safely from the PV generator and the grid.
•
Switch off external isolation provisions. Secure to prevent restarting.
•
Disconnect the solar inverter from power supply. For more information, see chapter 8.6
"Decommissioning". Verify safe isolation from power supply.
•
Earth and short-circuit (not DC side).
•
Even with the AC and DC main switches turned off, dangerous voltage levels may be
present in the solar inverter. This is the case if:
-
No external isolation facility is installed and turned off.
-
The DC link capacitors are still charged. Wait for some minutes until the DC link capacitors have discharged before starting to work at the solar inverter.
•
Using suitable protective equipment, secure live components in the work area to prevent
contact.
•
For a functional test of the electrical equipment, the solar inverter must be connected to
power supply. Take particular care when doing this. Do not touch any live parts or cable
ends.
CAUTION
Danger of burns due to hot surfaces!
Even some time after shutdown of the solar inverter, certain components, e.g. heat sink,
transformer, fuse, sine filter may have a high temperature.
•
Don't touch the surfaces directly after shutdown. Wear safety gloves where necessary.
CAUTION
Danger of crushing due to rotating fan!
Fans are installed in the upper area of the inverter. These fans might start suddenly without
warning.
76
76
•
Always ensure that the unit is isolated from power supply.
•
In the case of the solar inverters RPS 450 -30/60 kWp, the external control voltage supply must be disconnected.
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10.2
Service intervals/preventive maintenance
Carry out the following maintenance work at the specified intervals. Shorter intervals may be required, depending on ambient conditions.
Service
Monthly
Subject
Maintenance
work
Air inlet filter,
Filter mats
Clean, replace if
necessary
Error protocol
Check
Yield
Check
Yearly
Subject
Maintenance
work
Reason
Filter mats can get clogged by pollen, dust, etc. and prevent
proper cooling as a result. Dirty filter mats can result in
overtemperature and consequently failures. The filter mat covers
can be removed from the outside of the door.
Frequent errors or errors which are present over extended periods may be a sign of hardware defects. In order to prevent unplanned outages, the relevant component(s) should be replaced
in due time.
Ageing and frequent failures reduce the yield. Compare the expected yield with the actual yield.
Reason
The exterior components of the solar inverter (handles, contacts, filter grilles, etc.) may be damaged by improper handling.
Moisture, insects, dirt or dust may enter the solar inverter. In
Visual inspection,
Interior
the case of significant moisture, insect, dirt/dust load, eliminate
clean if necessary
the cause.
Insulation of the cable, particularly power cables, may change
Visual check,
its colour due to temperature or ageing, change its structure or
Cabling and terminal
replace if neces- be damaged by animals. Replace damaged cables.
connections
sary
Terminal connections may loosen in the course of time and must
be checked for tight fit.
Warning labels and signs may loosen in the course of time due
Warning information,
Check, replace if
to environmental impact. Replace damaged or missing warnings
signs
necessary
and signs.
Unusual operating noise is a possible sign of a fan failing soon.
Defective filters can result in overtemperature and consequently
Fan
Functional test
failures. Visual inspection and check for unusual noise during
operation.
Insulation,
Possibly, the signal contacts or the electronics of the monitoring
voltage, earth fault,
Functional test
equipment don't work properly and defects will not be recogfrequency monitoring
nized. Check signalling. Check changeover contacts.
If the RPS solar inverter features earth fault control an insulation
PV-Generator
Insulation test
check for earth faults in the grounded and the not grounded
pole has to be done.
If the RPS solar inverter features overvoltage protection without
Visual inspection signal relay, the visual indicator should be checked, particularly
or reading of
after a thunderstorm. After a defect, the solar inverter remains
Overvoltage protection
warning mesready for operation, but the overvoltage protection must be
sages
replaced as soon as possible. Note the corresponding warning
message of the solar inverter.
The switches are hardly ever actuated. Nevertheless, there may
be defects. Sparks may form in switching operations under load.
Visual inspection
Switches, contactors
These may change the colour of the switching device. Replace
/ functional test
the switches, contactors in case of significant discoloration.
Exterior
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Visual inspection
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RPS 450
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10.3
Test/inspections
If the solar inverter is subject to regular inspections by an inspection/testing organization, the relevant inspection intervals must be kept by the operator.
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11
Error diagnosis
The following error messages, including a code and moving text, are displayed on the control unit after a
fault. Press the start/enter button to stop error display.
11.1
List of errors
The last 16 error messages are saved in chronological order and the No. of Errors 362 shows the number
of errors which have occurred since initial commissioning of the frequency inverter. The error code FXXXX is
displayed in menu branch VAL of the control unit. For the meaning of the error code, refer to the following
chapter 11.2 "Error messages". The error message can be acknowledged via the illuminated "Reset" button.
List of errors
No.
Description
Function
310 last error
hhhhh:mm ; FXXXX error message.
311 second to last error
hhhhh:mm ; FXXXX error message.
312 to 325
Error 3 to error 16.
362 No. Of Errors
Number of errors occurred after the initial commissioning
of the frequency inverter.
The error and warning behavior of the frequency inverter can be set in various ways. Automatic error acknowledgment enables acknowledgement without intervention by an overriding controller or the user. No.
Of self acknowledged Errors 363 shows the total number of automatic error acknowledgments.
List of errors
No.
Description
363 Total of autom. acknowledged
errors
11.2
Function
Total number of automatic error acknowledgments with
synchronization.
Error messages
The error code saved after a fault consists of the error group FXX and the code number XX.
Current error (P259)
0000 No Fault
F0100 IxT
F0102 Long-Term Ixt
F0103 Short-Term Ixt
F0200 Heat Sink Overtemperature
Description
No error present.
Overloaded for more than 60 s.
Frequency inverter overloaded (60 s).
Short-term overload (1 s).
Heat sink temperature of frequency inverter too high,
check cooling and fan. Overtemperature faults are only
resettable when the temperature has decreased for
5°C.
F0201 Heat Sink Sensor
Temperature sensor of frequency inverter defective or
ambient temperature too low.
F0300 Overtemperature
Inside temperature of frequency inverter too high,
check cooling and fan. Overtemperature faults are only
resettable when the temperature has decreased for
5°C.
F0301 Undertemperature
Inside temperature of frequency inverter too low, check
ambient temperature.
F0403 Transformer Overtemperature
Temperature of transformer or sine filter too high.
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Current error (P259)
F0404 Isolation
Description
Earth fault in PV generator, check DC cabling.
F0405 Mains supervision
Mains parameters outside of nominal range, check
mains connection for voltage/frequency deviations.
Check fuses. Check main switch current settings.
F0406 Lighting protection
F0407 Mains Contactor
F0409 Transformer magnetization
F0412 Mains monitoring device
Digital inputs S5IND and EM-S3IND logically not identical. Check mains monitoring devices and their settings.
F0420 Mains upper frequency limit
Mains frequency exceeds the limit set in parameter
P1033.
F0421 Mains lower frequency limit
Mains frequency falls below the limit set in parameter
P1032.
F0500 Overcurrent
Overcurrent. Solar inverter overloaded, check filter,
transformer and mains connection.
F0501
F0502
F0505
F0506
F0507
Short circuit or earth fault at output. Check cabling.
String current limit exceeded.
Total of currents is not correct. Check cabling.
Overcurrent, quick triggering by hardware.
Overcurrent, slow triggering by software.
Uce-Control
Dyn. Phase-Current limitation
Earth fault
Overcurrent
Overcurrent
F0700 Overvoltage
DC link voltage too high. Check generator configuration.
F0702 Power failure
Mains failure detected. Mains defect detected. Quick
protection.
F0801 24 V Supply Voltage too low
F0804 24 V-Supply Overvoltage
F0900 Preload contactor
F0A11 EEPROM Read error
Electronic voltage too low. Check control terminals.
Electronic voltage too high. Check control terminals.
Pre-charge contactor in mains unit AEC does not pick
up.
The control unit is not able to display the data of the
solar inverter properly. The socket of the control unit
should be changed.
F1201 Diagnostic-Error STO
At least one of the release paths is defective. Check
cabling and EMC.
F1205 STO 5s-Supervision
The two release paths were not actuated at the same
time. Check release switches.
F1300 Earth fault
Earth fault on inverter output.
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Defective surge arrester identified.
Main contactor does not pick up although the PV power
is sufficient for feeding power to grid. Check main contactor, signal contact and main contactor control circuit.
Motor circuit-breaker in the transformer pre-charge
circuit has tripped.
No transformer pre-charge feedback. Check control
circuit. Pre-charge contactor or signal contact are broken.
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11.3
Warning Messages
The current warning is displayed by a message in the warning status and can be used for early reporting of
a critical operational condition. If a warning is present, this is indicated by the display field WARN of the
control unit. Via the actual value parameter Warnings 269, the current warning can be displayed.
Parameter
0x0001
0x0002
Warning message text
"Warning Ixt"
"Warning short-term Ixt"
Meaning
The warning limit for the available overload
was reached.
0x0004
"Warning long-term Ixt"
0x0008
"Warning heat sink temperature Tk"
The heat sink temperature at which a warning is output was reached. Check ambient
temperature.
0x0010
"Warning inside temperature Ti"
The inside temperature of the frequency
inverter at which a warning is output was
reached. Check ambient temperature.
0x0020
"Warning I-limit"
0x0040
"Warning Init"
0x8000
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"Warning 0x8000"
The output current of the solar inverter is
limited.
The solar inverter is released and in start
state. The warning message is displayed if
the solar inverter has been released via the
control switch but is not in feed-in mode
yet.
Defective surge arrester identified. The
behavior set in parameter Op. Mode overvoltage protection 828 was triggered. A
defect is indicated at the surge arrester
(visual signal). Replace defective surge
arrester.
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12
Plant monitoring
In the standard variant, a control unit is installed in the door. This unit is used for parameter configuration
and display of actual values and error messages. Optional components enable monitoring of the plant via
various interfaces and data networks.
12.1
Plant monitoring by means of data logger
An optional data logger enables saving and transmission of data.
Monitoring is possible both on site and via remote maintenance.
Data transmission
The data logger can upload its yield data on a FTP server cyclically.
-
As homepage data to supply an existing website with up-to-date values.
-
As CSV files which can be opened and edited in MS Excel, for example.
For data transmission, the data logger requires a connection to the Internet.
Energy meter
Option
Alarm
data logger
n
ctio
ne
RPS Log 1000 H
n
o
-C
S0
RS485
LAN
RS232
RS485
3
5 1 4 kWh
Sensorbox ( Insolation and modu
temperature)
USB
C
RS485
Ambient
temperature
Connection of up to 20 inverters
RS232
VPlus
Nearby plant
km/h
Wind
speed
Te lephone line
Analogue modem
Internet
GPRS Modem
Mobile
network
Te lephone line
DSL-Router
Figure 12-1: Plant monitoring by means of data logger
For details on the data logger, refer to the separate RPSlog1000 user manual.
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Index
A Actual values 61
actual value memory 74
of mains 73
K KP500 52
L C Cables
cross-sections 39, 40, 41, 42, 44
Installation 35
Connection 35
AC 40, 42, 44
Control functions
intelligent current limits 71
Control unit 52
Cooling 33
Language 60
Lightning protection 35
M Menu
Actual values 53
Parameters 53
Monitoring
Grid 29
Insulation 29
temperature 31
D Displays 61
E Electrical cabinet fan 69
Electrical connection 14, 35
Error messages 79
acknowledge 70
External power supply 45
O Operating statuses 63
Options 26, 61
P Parameters 60, 75
Password 60
Power limitation 65
S F Fan 33
Electrical cabinet 69
Start temperature 69
G Grid monitoring 29
I Installation 14, 32
Insulation monitoring 29
Intelligent current limits 71
Internal power supply 45
Service 76
Shutdown behavior 62
Shutdown limit 62
Software version 61
Startup behaviour 61
Surge arrester 31
T Technical data 20
Temperature monitoring 31
Transport 16
V Voltage controller 64
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Bonfiglioli has been designing and developing innovative
and reliable power transmission and control solutions
for industry, mobile machinery and renewable energy
applications since 1956.
www.bonfiglioli.com
Bonfiglioli Riduttori S.p.A.
Via Giovanni XXIII, 7/A
40012 Lippo di Calderara di Reno
Bologna, Italy
tel: +39 051 647 3111
fax: +39 051 647 3126
[email protected]
www.bonfiglioli.com
VEC 626 R0
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