Chapter 6 Error checking and elimination
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Chapter 6: Fault checking and elimination
6.1 Displaying and removing fault
The V800 has a total of 28 warning and protective functions. Once a fault occurs, the
protection function, the stop of the inverter output, the fault code of the inverter is
displayed on the panel display. The user can analyze the cause of the problem himself, find
a solution. If the failure is marked with a dotted frame, find a service or your supplier or
contact our company directly.
In most cases, an OUOC alarm is caused by a hardware overvoltage.
1: The output circuit is
grounded or short circuited.
2: The connecting cable of
the motor is too long.
3: The module overheats.
4: The internal connections
become loose.
5:The main control board is
faulty.
6: The drive board is faulty.
7: The inverter module is
faulty
1: Eliminate external faults.
2: Install an output filter.
3: Check the air filter and the
cooling fan.
4: Connect all cables properly.
5,6,7: Find technical support
Overcurrent
during
acceleration
1: The output circuit is
grounded or short circuited.
2: Motor auto-tuning is not
Performed.
3: The acceleration time is
too Short.
4: Manual torque boost or
V/F curve is not appropriate.
5: The voltage is too low.
6: The startup operation is
performed on the rotating
motor.
7: A sudden load is added
during acceleration.
8: The inverter model has a
too low power class.
1: Eliminate external faults.
2: Perform the motor auto-
tuning.
3: Increase the acceleration
time.
4: Adjust the manual torque
boost or V/F curve.
5: Adjust the voltage to
normal range.
6: Select rotational speed
tracking restart or start the
motor after it stops.
7: Remove the added load.
8: Select an inverter of higher
power class.
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