Invt CHV190-5R5G-4 [145/242] Common faults and solutions

Invt CHV190-030G-4 [145/242] Common faults and solutions
CHV190 series special inverter for crane
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Fault
code
Fault type Reason Solution
disconnected, the
higher classification
contact is connected.
first, and then connect
the more advanced
classification.
STC Operating lever fault
Operating lever has
not returned to zero
position.
Put the operating lever
back zero.
ETH Earth connection fault
Grounding is error.
Given speed is set by
analog, GND
disconnect.
Improper baud rate
setting.
Set proper baud rate.
Receive data error.
Press STOP/RST to
reset. Ask for support.
CANE
CAN bus
communication fault
Communication is
interrupted for Long
time.
Check communication
devices and signals.
Motor temperature is
too high.
Check motor.
Temperature sensor is
damaged.
Check temperature
sensor.
OH3
Motor
over-temperature fault
Temperature sensor
wirings loose.
Check temperature
sensor wiring.
8.2 Common Faults and Solutions
Inverter may have following faults or malfunctions during operation, please refer to the
following solutions.
No display after power on:
Inspect whether the voltage of power supply is the same as the inverter rated voltage or
not with multi-meter. If the power supply has problem, inspect and solve it.
After the power supply is switched off for a few minutes, inspect whether the
three-phase rectify bridge is in good condition or not. If the rectification bridge is burst out,
ask for support.
Check the CHARGE light. If the light is off, the fault is mainly in the rectify bridge or the

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