108
第
十
章
Ch
ap
ter 6
Chapter 6 Troubleshooting
6-1.Fault alarm and countermeasures
PI160 series frequency inverter will stop output to protect the motor once fault happens when
the inverter system is running . When the frequency inverter is in fault , relay contact will start ,
and the fault code will be displayed on the display panel of the inverter. The corresponding fault
type and common solutions of fault code can be found in the table below. The listed items in the
table are for your reference only, please don’t repair or transform the inverter without authorization.
If faults cannot be solved, please contact the agents or manufacturer to seek for technical support .
No
Failure
type
Failure type
Possible causes
Solutions
1
Err.01
Inverter unit
protection
1.The short circuit of inverter
output happens
2.The wiring for the motor and the
inverter is too long
3.Module overheating
4.The internal wiring of inverter is
loose
5.The main control panel is
abnormal
6.The drive panel is abnormal.
7.The inverter module is abnormal
1.Eliminate peripheral
faults
2.Additionally install the
reactor or the output filter
3.Check the air duct is
blocked or not and the fan
is working normally or
not, and eliminate
problems
4.Correctly plug all cables
5.Seek for technical
support
2
Err.02
Acceleration
overcurrent
1.The acceleration time is too short
2.Manual torque boost or V/F
curve is not suitable
3.The voltage is low
4.The short-circuit or earthing of
inverter output happens
5.The control mode is vector and
without identification of
parameters
6.The motor that is rotating is
started unexpectedly.
7.Suddenly increase the load in the
process of acceleration.
8.The type selection of inverter is
small
1.Increase acceleration
time
2.Adjust manual torque
boost or V/F curve
3.Set the voltage to the
normal range
4.Eliminate peripheral
faults
5.Perform identification
for the motor parameters
6.Select Speed Tracking
Start or restart after
stopping the motor.
7.Cancel the sudden load
8.Choose the inverter with
large power level
3
Err.03
Deceleration
overcurrent
1.The short-circuit or earthing of
inverter output happens
2.The control mode is vector and
without identification of
parameters
3.The deceleration time is too short
4.The voltage is low
5.Suddenly increase the load in the
process of deceleration.
6.Didn't install braking unit and
braking resistor
1.Eliminate peripheral
faults
2.Perform identification
for the motor parameters
3.Increase the deceleration
time
4.Set the voltage to the
normal range
5.Cancel the sudden load
6.Install braking unit and
brake resistor
4
Err.04
Constant speed
overcurrent
1.The short-circuit or earthing of
inverter output happens
1.Eliminate peripheral
faults
