INVT CHV100-7R5G-4 User Manual

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CHV Series Close loop Vector

Control Inverter

Operation Manual

z Thank you very much for your buying CHV series close loop vector control

inverter.

z Before use, please read this manual thoroughly to ensure proper usage. Keep

this manual at an easily accessible place so that can refer anytime as necessary.

Table of Contents

Questions and Answers:

M
Melissa PalmerAug 22, 2025
What to do if there is over-current during acceleration in INVT CHV100-7R5G-4 DC Drives?
- H
  Hector HayesAug 22, 2025
  To address over-current during acceleration with your INVT DC Drives, first, check for any short-circuits or ground faults at the inverter output. Inspect the motor for damage, worn insulation, or cable issues. If the hardware is fine, increase the Acc/Dec time or choose a higher capacity inverter. Also, review and adjust the V/F curve settings and check the load.
R
ramseynicholasAug 23, 2025
How to fix inverter overload in INVT CHV100-7R5G-4 DC Drives?
- D
  Dominic MorrisonAug 23, 2025
  If your INVT DC Drives display 'Inverter overload', it could be due to several reasons. The load might be too heavy, or the Acc/Dec time is too short. Try increasing the Acc/Dec time or selecting an inverter with a bigger capacity. An improper V/F curve could also be the cause; in that case, check and adjust the V/F curve. Lastly, the inverter capacity might be insufficient for the load, so consider selecting a bigger capacity inverter.
Z
zfordAug 25, 2025
Why does over-voltage occur during acceleration in INVT DC Drives?
- B
  brooksdawnAug 25, 2025
  If your INVT DC Drives experience 'Over-voltage when acceleration', the deceleration time might be too short, causing excessive regenerative energy from the motor. Try increasing the deceleration time or connecting a braking resistor. Additionally, the input voltage may be too high; decrease it to stay within the specified limits.
K
Kristen LamAug 27, 2025
What to do if there is a motor overload in INVT DC Drives?
- L
  lmoralesAug 27, 2025
  If the INVT DC Drives motor is experiencing an overload, consider these potential causes. The motor might be driving a heavy load at low speed for an extended period; if so, select a variable frequency motor. An improper V/F curve could also be the cause; check and adjust the V/F curve. Verify the motor’s overload protection threshold (PB.03) and adjust if necessary. Finally, check the load for any sudden changes.
R
Robert FloresAug 27, 2025
How to troubleshoot IGBT Ph-U fault in INVT DC Drives?
- D
  Daniel WalkerAug 27, 2025
  If the INVT DC Drives show an IGBT Ph-U fault, it could be due to several reasons. The acceleration or deceleration time might be too short, so try increasing it. There might be a malfunction caused by interference, so inspect external equipment and eliminate any interference. Also, ensure that grounding is properly set up. If the issue persists, it could be an IGBT module fault, and you should ask for support.
D
Dale JohnsonAug 29, 2025
What causes rectify overheat in INVT DC Drives?
- E
  Ellen PaulAug 29, 2025
  If your INVT DC Drives display 'Rectify overheat', several factors could be responsible. The ambient temperature may be too high, or there could be a nearby heat source. Consider installing a cooling unit or removing the heat source. Check if the inverter's cooling fans have stopped or are damaged; if so, replace the cooling fan. Obstruction of the ventilation channel can also cause overheating; clear the channel. Lastly, a high carrier frequency can contribute to this issue; decrease the carrier frequency.
S
Sharon BentonAug 30, 2025
What causes input phase failure in INVT CHV100-7R5G-4?
- V
  Valerie JohnsAug 30, 2025
  If your INVT DC Drives has input phase failure, check the wiring, installation, and power supply. The issue may stem from an open-phase in the power supply, a momentary power loss, loose wiring terminals for the input power supply, significant voltage fluctuations, or poor voltage balance between phases.
A
Ashley Cunningham DDSSep 1, 2025
What to do if DC bus under-voltage occurs in INVT DC Drives?
- S
  Stephanie FaulknerSep 1, 2025
  If the INVT DC Drives show a DC bus Under-voltage error, inspect the input power supply and wiring. This problem can arise from an open phase in the power supply, a momentary power loss, loose wiring terminals for the input power supply, or large voltage fluctuations in the power supply. Also inspect external equipment.
K
kevin39Sep 2, 2025
What causes output phase failure in INVT CHV100-7R5G-4 DC Drives?
- A
  Adam DownsSep 2, 2025
  If the INVT DC Drives show an output phase failure, check the wiring and installation. This issue can arise from a broken wire in the output cable, a broken wire in the motor winding, or loose output terminals.
C
Connor RamirezSep 4, 2025
How to troubleshoot communication fault in INVT DC Drives?
- M
  Mark NelsonSep 4, 2025
  If the INVT DC Drives show a communication fault, it may be due to an improper baud rate setting. In this case, set the proper baud rate. It could also be due to receiving wrong data, so check communication devices and signals. Another potential cause is the communication being interrupted for a long time.

INVT CHV100-7R5G-4 Specifications

General

Model	CHV100-7R5G-4
Power Rating	7.5kW
Frequency Range	0-400Hz
Protection Level	IP20
Storage Temperature	-20°C to +60°C
Control Method	V/F control
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overload, Short circuit
Humidity	5% - 95% RH, non-condensing
Altitude	Below 1000m
Cooling Method	Forced air cooling

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