Inovance MD380 Series, User Manual

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Maintenance and
Troubleshooting MD380 User Manual
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9.3 Faults and Solutions
The MD380 provides a total of 24 pieces of fault information and protective functions. After a
fault occurs, the AC drive implements the protection function, and displays the fault code on
the operation panel (if the operation panel is available).
Before contacting Inovance for technical support, you can first determine the fault type,
analyze the causes, and perform troubleshooting according to the following tables. If the
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Err22 is the AC drive hardware overcurrent or overvoltage signal. In most situations,
hardware overvoltage fault causes Err22.
Figure 9-1 Solutions to the faults of the MD380
Fault Name Display Possible Causes Solutions
Inverter unit
protection
Err01
1: The output circuit is grounded
or short circuited.
2: The cable between the motor
and the AC drive 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 a reactor or an
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the cooling fan work properly.
4: Connect all cables
properly.
5: Contact the agent or
Inovance for technical
support.
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during
acceleration Err02
1: The output circuit is grounded
or short circuited.
2: Motor auto-tuning is not
performed.
3: The acceleration time is too
short.
4: Customized torque boost or V/F
curve is not appropriate.
5: The voltage is too low.
6: The motor is started during
rotating.
7: A sudden load is added during
acceleration.
8: The AC drive size is small.
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: Enable the catching a
spinning motor funcion or
start the motor after it stops.
7: Remove the added load.
8: Replace a large drive.
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