HZ-60 Frequency Converter User Manual

HZ-60 Frequency Converter User Manual
GoHz Programmable Frequency Converter
Programmable 50Hz, 60Hz, 400Hz Frequency Converter
Solutions for Converting
- 110V 60Hz to 220V 50Hz,
- 120V 60Hz to 240V 50Hz,
- 230V 50Hz to 110V 60Hz,
etc…
Power Capacity from 500 VA to 50 kVA - HZ-60 series
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Catalogue
I. Safety Precautions ………………………………………………………………...…………………3
II. Working Principle ………………………………………………………………………….………4
III. Introduction ………………………………………………………………………..………………5

Product Features

Applications

Checklist

Nameplate
IV. Operation Panel and Functions ………………………………………………………...…………6
V. Operating Guide ……………………………………………………………………….……………7

Menu Selection

Parameter Setting Procedure

Specific Operation Settings
VI. Placement…………………………………………………………………………...………………8
VII. Installation…………………………………………………………………..…………………9-12

Wiring Precautions

Wiring Diagram

Wire Diameter Reference Table

Power Polarity Identification Methods

Grounding System
VIII. Specifications ……………………………………………………………………...……………13
IX. Troubleshooting ……………………………………………………..……………………………14
X. Maintenance ………………………………………………………….……………………………15
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Chapter I. Safety Precautions
 Read this user manual before using GoHz frequency converters.
 Keep this user manual near the frequency converter for reading at any time.
 Handle with care when transporting the frequency converter to avoid collision.
 Do not put the frequency converter on uneven or inclined place.
 Do not block the venting holes or slits to keep the frequency converter well-cooling effect, the back of the
frequency converter should keep 10 cm (4 inches) away from the wall.
 Double check the frequency converter and power supply specifications are matching and well-wired before
power connection to avoid any careless damaged.
 Frequency converters have different installations according to different capacities and voltage levels,
choose an appropriate configuration and wire diameter.
 Do not overload the frequency converter and wire to prevent the electric shock or cause fires.
 Please follow the implementation of electrician laws and regulations.
 In case of abnormal phenomenon happens, follow this user manual in troubleshooting or contact the
manufacturer.
 Please keep frequency converter clean and do not put heavy objects on top of it.
 Prevent any liquids and sundries into the frequency converter, in order to avoid poor contact or short circuit
to cause electric shock or fire.
 Better to unplug the power cord in storm, lightning or thunder days.
 Avoid placing in direct sunlight, raining or humid place.
 Keep it away from the source of ignition and heat to prevent overheat.
 Shutdown the power cord during moving or maintaining the frequency converter.
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Chapter II. Working Principle
GoHz multi-function programmable frequency converter is a standard AC power supply electronic device, it can
simulate international standard power supplies, convert fixed AC voltage and frequency power into stable pure
sine wave power by internal AC to DC, DC to AC current rectifying, with high activation current, and displays a
number of parameters (Such as: voltage, frequency, current, apparent power, power factor etc.).
GoHz programmable frequency converters adopt advanced PWM (Pulse Width Modulation) technology with
compact size, light weight and high efficiency features. Digital Signal Processor technology provides high
precision measurements function of voltage, frequency, current, apparent power and power factor etc. The use of
high power IGBT module design to reduce circuit complexity, enhance frequency converter stability and reduce
power consumption. And the isolation transformers completely isolate the mains and the loads, in order to
improve the loads stability and a variety of testing performance, to ensure the accuracy of test values for the
loads.
GoHz programmable frequency converter provides voltage (0 - 300V) and frequency (standard 40Hz - 120Hz,
120Hz to 499.9Hz is optional), suitable for general commercial electrical and electronic machines.
Frequency Converter Circuit Block Diagram
EMI
Filter
DC Filter
Circuit
Overcurrent
Detection
Over-temperature
Detection
Input
Circuit
Breaker
Output
Filter
High/Low
Voltage Switch
Driver Circuit
Display
Voltage
PWM Circuit
CPU
Frequency
Fuse Fusing
Detection
Power Failure
Detection
Power
Supply
DC/AC
Converter
Frequency
Detection
Triangular Wave
Circuit
Current
Power
ROM (sine wave)
Circuit
Power Factor
Working Time
DDS Signal
Generation
Keypad
4
Output NFB
Input
control
Rectifier
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Chapter III. Introduction
Product Features
 Adopt high brightness LED display, clear and eye-catching, wide view angle;
 Adopt IGBT module design, output stable pure sine wave power, less interference, high precision and low
noise;
 Adopt advanced Direct Digital Synthesizer (DDS) waveform generation technology, high frequency stability
and good continuity;
 Adjustable wide range output voltage, 0-300V, keypad input directly;
 Output current limitation feature;
 10 sets parameters preset records, store common parameters (Voltage V, Frequency Hz and Running Time S)
for recall easily;
 RS232 (Optional) communication interface can be connected with computer to constitute intelligent power
supplies;
 Protection of overvoltage, overcurrent, overload, short circuit, current limitation;
 High accuracy digital key input voltage, frequency;

Fault code records, easy for troubleshooting.
Applications
Laboratory standard power supply
Air compressor testing
Monitor Testing
Quality assurance / Control / lifetime testing
Air conditioning equipment testing
in Manufacturers
Transformers / TRIAC / SCR and
other parts testing
Switching power supply testing
Fluorescent lamp ballast testing
Motor equipment testing
All kinds of electrical machines with motors Copiers, scanners, OA product testing
R&D departments require best power
supplies
Checklist
Every frequency converter has functional test before leaving factory, the frequency converter is wooden packaged,
includes:
 1 unit frequency converter
 1 unit input power cable (only for 500VA & 1kVA)
 Operation manual
Nameplate
GoHz Frequency Converter
Model:
Capacity:
Input:
Output:
Serial Number:
HZ-60-1101
1kVA
1P2W 220V 50Hz/60Hz
1P2W 0 – 300V, 40.0 – 499.9Hz
GoHz-20150101010
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Chapter IV. Operation Panel and Functions
① Display panel
② Input Switch
③ SET: set voltage and frequency values in standby mode
④ OK button to confirm
⑤ W/PF: power and power factor switch
⑥ ▲▼Up & Down: adjust voltage
⑦
Left & Right: adjust frequency
⑧ M1-M4: shortcut of parameters preset records
⑨ ON/OFF: start/stop button
⑩ Output socket.
6
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Chapter V. Operating Guide
Menu Selection
Turn on the input switch, press SET button enter into main menu user interface, the main menu is divided into
four options:
1) Parameter Set; 2) Operating Parameters; 3) Abnormal Display; 4) Program Settings.
Press up/down ▲▼ buttons to adjust the selection, press OK button to enter the option.
Parameter Setting Procedure
1. Enter into "Parameter Set" user interface, press up/down ▲▼ buttons to select the parameter sets (M0-M9),
press left/right
buttons to change the underline position, press up/down ▲▼buttons to set the values.
2. Enter into "Operating Parameters" user interface, press up/down ▲▼ buttons to adjust the voltage value,
buttons to adjust the frequency value. Note: the frequency converter output must in turn-on state,
left/right
otherwise the values can not be adjusted.
3. W/PF, switch power and power factor, the frequency converter default display is power.
4. Abnormal Display, display the frequency converter operating abnormality.
5. Program Settings, press up/down ▲▼buttons to switch terminate-parameter-sets, elect-parameter-sets and
running mode, press left/right
buttons to change the sub-options of terminate-parameter-sets,
elect-parameter-sets and running mode. (The default running mode is "CYCLE", without special requirements,
please do not change it to "SEQUENCE".) Power output is only used for displaying whether the frequency
converter has output or not.
Specific Operation Settings
1. The frequency converter displays "Parameter Set" user interface after its power on.
2. Select the parameter sets (M0-M9).
(1) M1, M2, M3, M4 are the shortcut sets, press
to set the values, each set can be selected on
the operator interface directly.
(2) M0, M5, M6, M7, M8, M9 parameter sets are programmable for connecting computer operation.
(3) After parameters finalized, connect loads and press ON/OFF button, then the operator interface will
display frequency, current and power.
(4) Press up/down ▲▼buttons to set voltage, left/right
buttons to set frequency online (with loads).
3. To change the operating voltage, press ON/OFF button to cut output, select the preset parameters stored in
M1-M4 and press ON/OFF to enable output.
7
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Chapter VI. Placement
The environment of the frequency converter being placed has direct affect to converter's function and lifetime,
the environment should follow the conditions:
Moving:
 Please shut down and disconnect all wirings before moving the frequency converter.
 Do not move the frequency converter upside down.
 Handle the frequency converter with care in moving to avoid collision.
Placement
 Do not put the frequency converter on uneven or inclined place.
 Avoid direct sunlight, rain or humid place
 Keep it away from fire and high temperature place to prevent overheating.
 Avoid oil mist, salt, corrosive gases erosion.
 Avoid dust, cotton and small metal objects intrusion.
 Keep the frequency converter in a well-ventilated place, keep the frequency converter's back away from the
wall at least 10cm to ensure sufficient ventilation.
 Operating temperature 0 - 40℃, humidity 0 - 90% (non-condensing).
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Chapter VII. Installation
Wiring Precautions
 Whether the capacity of the frequency converter in accordance with your loads.

Whether the frequency converter damaged during transportation, if so, do not connect it to power source.

Shut down power before wiring, check the input voltage before installation.

Make sure the specification of the wire in accordance with the frequency converter before wiring to avoid
damages. The wire diameter should follow the voltage level and capacity of the frequency converter.

Please refer to electrician wiring regulations, or following the "wire diameter reference" table.
 Avoid the switch of the frequency converter share with other appliances.
 Use O-type wiring terminals, make sure it's well-wired, tighten screws to avoid poor contact and prevent
electric shock.
 Make sure the polarity is correct where it's single phase frequency converter or three phase converter.
 For grounding, please refer to page 12.
 Make sure all switches on "OFF" status before connecting the frequency converter to power source.
 Make sure the power source, frequency converter and loads are matching before power on.

Internal semiconductor components are sensitive to static electricity, be careful in touching the metal
control panel.
Wiring Diagram
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Wire Diameter Reference Table
1Ø2W 220V/110V
Model
1Ø
Input
Output
GoHz
Max. I/P
Current
Protection
Breaker
Power Wire
Max. O/P
Current
Power Wire
1102
2KVA
12.6A
30.0A
2.0mm2
110V:18.2A
220V:9.1A
2.0mm2
1103
3KVA
19.0A
30.0A
3.5mm2
110V:27.2A
220V:13.6A
5.5mm2
1105
5KVA
25.5A
50.0A
3.5mm2
110V:45.4A
220V:22.7A
8.0mm2
1110
10KVA
63.1A
75.0A
22.0mm2
110V:91.0A
220V:45.5A
30.0mm2
3115
15KVA
94.7A
100.0A
30.0mm2
110V:136.4A
220V:68.2A
22.0mm2
3120
20KVA
12.6A
150.0A
38.0mm2
110V:181.8A
220V:90.9A
60.0mm2
3130
30KVA
189.4A
200.0A
80.0mm2
110V:272.8A
220V:136.4A
125.0mm2
3Ø4W 220V/ 380V, 3Ø3W 380V
Model
3Ø
Input
Output
GoHz
Max. I/P
Current
Protection
Breaker
Power Wire
Max. O/P
Current
Power Wire
3306
6KVA
12.6A
30.0A
2.0mm2
110V:18.2A
220V:9.1A
3.5mm2
3310
10KVA
20.5A
30.0A
3.5mm2
110V:30.2A
220V:15.1A
5.5mm2
3315
15KVA
31.5A
40.0A
5.5mm2
110V:45.5A
220V:22.7A
8.0mm2
3320
20KVA
42.2A
50.0A
8.0mm2
110V:60.6A
220V:30.3A
14.0mm2
3330
30KVA
63.0A
75.0A
22.0mm2
110V:91.0A
220V:45.5A
30.0mm2
3345
45KVA
95.0A
125.0A
30.0mm2
110V:136.0A
220V:68.0A
38.0mm2
3360
60KVA
126.0A
150.0A
38.0mm2
110V:182.0A
220V:91.0A
60.0mm2
3375
75KVA
158.0A
187.5A
50.0mm2
110V:227.0A
220V:113.5A
100.0mm2
33100
100KVA
210.5A
250.0A
80.0mm2
110V:303.0A
220V:151.5A
150.0mm2
33120
120KVA
252.5A
300.0A
100.mm2
110V:363.6A
220V:181.8A
200.0mm2
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Power Polarity Identification Methods
1. Fire Wire to Ground or Neutral (i.e. line to line voltage) Wire, there are 173V, 190V, 200V, 208V, 220V, 230V,
240V, 380V, 400V, 415V, 440V, 480V according to different specifications. This is for three-phase three-wire or
three-phase four-wire system.
2. Neutral Wire to Fire Wire, there are 100V, 110V, 115V, 120V, 127V, 132V, 139V, 220V, 230V, 240V, 254V,
277V etc according to different specifications, to Ground Wire it's approx. 0.5V-2.0V. There is no Neutral Wire
in three-phase three-wire system.
3. Ground Wire to ground rods. Three-phase four-wire systems are: 173V / 100V, 190V / 110V, 200V / 115V,
208V / 120V, 220V / 127V, 230V / 132V, 240V / 139V, 380V / 220V, 400V / 230V, 415V / 240V, 440V / 254V,
480V / 277V. Three-phase three-wire systems are: 173V, 190V, 200V, 208V, 220V, 230V, 240V, 380V, 400V,
415V, 440V, 480V. Two-wire systems are: 100V, 110V, 115V, 120V, 127V, 132V, 139V, 220V, 230V, 240V,
254V, 277V. If the voltage between Ground Wire and Neutral Wire is higher than 5V or the equipment has
specific requirement, please find a qualified electrician to reinstall the ground wiring system for safety factors.
4. Fire Wire marks: single-phase system marked with L, L1, L2; three-phase system marked with R, S, T, U, V,
W.
5. Neutral Wire marks: both single-phase and three-phase systems are marked with N.
6. Ground Wire marks: marked with "G" or "E" (Earthing), or symbol "〨".
7. Single-phase wire color distinguishes:

L, L1, L2 (Fire Wire): Red

N (Neutral Wire): Black

G or E (Ground Wire): Black
8. Three-phase wire color distinguishes:

R-Phase (input) and U-Phase (output): Red

S-Phase (input) and V-Phase (output): Green

T-Phase (input) and W-Phase (output): Yellow

N (Neutral Wire): Black

G or E (Ground Wire): Black
Note: if the voltage between Neutral Wire and Ground Wire is higher than 5V or the system has specific
requirement, you can short the null line and ground line, but it's not a must.
11
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Grounding System
1. In addition to safety consideration, well-grounded system also can avoid the power system interferes
equipment normal operation.
2. Ground Wire should be separated with Neutral Wire if it's not neutral wire, unless special applications.
3. Ground Wire should be 8AWG wire at least or the diameter is basically the same.
4. Ground Wire is for specified frequency converter only, poor ground will cause interference for other
machines.
5. Use ground rods in grounding for the best.
6. Ground Types:
Item
Applications
Resistance values
1
Low voltage power supply system or high voltage electrical
equipment of three-phase four-wire multi-grounded systems 10Ω or less
grounding
2
Ungrounded high-voltage electrical equipment grounding
system.
3
Low voltage power supply system of three-phase three-wire
50Ω or less
ungrounded system.
4
1. Low voltage electrical equipment grounding
2. Inner system grounding
3. Frequency converter secondary grounding
4. Low voltage electrical equipment metal body grounding.
12
25Ω or less
1. Ground voltage less than 150V is 100Ω or less.
2. Ground voltage 151V to 300V is 50Ω or less.
3. Ground voltage higher than 301V is 10Ω or less.
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Chapter VIII. Specifications
Capacity
500VA
1KVA
2KVA
3KVA
5KVA
10KVA 15KVA 20KVA 30KVA 50KVA
Input
Phase
Single Phase
Three Phase
Voltage
220V±10%
380V±10%
Frequency
Phase
Output
Voltage
Frequency
50Hz, 60Hz
1Φ2W
Low grade 0-150V AC / High grade 0-300V AC
40Hz-120Hz (120Hz-499.9Hz Specified)
Current
L=110V
4.2A
8.4A
16.8A
25A
84A
84A
125A
168A
250A
420A
H=220V
2.1A
4.2A
8.4A
12.5A
21A
42A
62.5A
84A
125A
210A
Display
Voltage, Current, Frequency, Power, Power Factor.
Voltage Regulation
0.10%
Load Regulation
0.50%
Total Harmonic
Distortion (THD)
1% (Pure resistive loads)
Frequency Stability
0.01%
Voltage Resolution
0.1V
Frequency Resolution
0.1 Hz
Current Resolution
0.01A
Voltage
0.5%FS+5dgt
Measurement
Current
0.5%FS+5dgt
Accuracy
Power
0.5%FS+5dgt
1A
Frequency 0.01%FS+5dgt
Setting
Accuracy
Voltage
1%FS
Frequency 0.1%FS
Parameter Sets
10 sets (M0 - M9), record voltage, frequency and running time
Communication
Interface
RS232C (Optional)
Protection
Operating Environment
Overcurrent, over temperature, overload, short circuit etc.
0-40℃, 20-80%RH
13
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Chapter IX. Troubleshooting
Please pay attention to internal high voltage components, only qualified electricians can maintain the frequency
converter.
Turn off the frequency converter before proceeding troubleshooting procedures if it's not necessary to do live
troubleshooting.
Phenomenon
Inspection methods
Troubleshooting
No input power
1. Input switch is turn on or not?
2. Input voltage is right or not?
3. The fuse is burn down or not?
1. Turn the power supply input switch.
2. Connect to correct voltage power supply.
3. Check the fuse and replace the fuse with same specification
if necessary.
Output power outage
1. Is it power off or momentary
power off?
2. Is it overload?
1. Press the activate switch (ON) to reboot
2. Make sure the loads are within the frequency converter's
capacity.
No output voltage
1. Is the fuse burn down or not?
2. Is it overloaded?
1. Check the fuse and replace the fuse with same specification
if necessary.
2. Replace a larger capacity frequency converter
Voltmeter, ammeter and
power show "0" when the
output frequency is
normal.
1. Turn the power switch to "OFF" position.
2. Change output voltage switch to zero.
3. Turn the power switch to "ON" position.
Voltmeter, ammeter and
power show "0" and
alarm rings when the
output frequency is
normal.
1. Check and decrease the loads' current.
2. Press the shutdown/reset button (OFF/RESET)
3. Re-operation
High temperature
Emergency
1. Is it overload?
1. Decrease loads.
2. Cooling fan speed is slowdown
2. Replace a new cooling fan.
or not to work
Please advise:
1. Frequency converter model & serial number.
2. Date & Time of the failure.
3. Loads.
4. Detailed description of the failure.
14
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Chapter X. Maintenance
GoHz frequency converters do not require daily maintenance, a regular maintenance is benefited of longer
lifetime, the maintain times is in accordance with the environmental conditions.
Preventive Measures:

Do not put any liquid objects on the top of the frequency converter.

If the frequency converter is installed in a harsh environment, such as windy and dusty, pay more attention
to make the frequency converter clean or do more frequent maintenances.
Maintenances:

Turn off the power switch

Clean inner dusts

Wipe the cabinet, cover and venting holes with a soft cloth and detergent.

Visual inspection of all power lines and terminals, see if there is collision, loose, hot corrosion, moisture,
insect bites or rat bites, do some repairs or replaces if necessary.
Note: DO NOT do any maintenance if you are not a qualified electrician, and make sure the frequency converter
is discharged completely before proceeding any maintenance.
15
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