User manual

Chapter6 Troubleshooting
6.3 Motor’s faults and corrective measure
If the motor has one of the following faults, please find the reason and take
corresponding corrective measure. Seek for tech support if the measure does not work.
Table 6-3 Motor fault and corrective measure
Fault Content of checking Corrective measure
●Turn on the current
●Cut the current and then turn
on again
●Check voltage of power
supply
Whether the power supply
connect to terminals R, S, T.
Whether charge LED lit
●Be sure the bolts fasten
terminals firmly
Use a rectifying voltmeter to
test whether the voltage of
terminals U,V,W is correct
●Cut the current and then turn
on again
Whether the motor is locked
for over loading
●Reduce the load and remove
the lock
Is there any fault code
displayed on the keyboard?
Is indicator TRIP flashing?
The motor
doesn’t work
●Fault code referred in Table
6-1
Is there any running command
●Check whether operating
terminal connection and
connection between 24V and
PLC are firm
Whether prohibit reverse
operation setting is according
with running direction.
●Set reverse operation enable
or change the direction order
of motor
Whether terminals operating
signal cut first and then close
after fault.
●Cut terminals operating
signal first and then close
Whether frequency reference
voltage has been given by
analog input
●Check frequency reference
voltage
Whether the setting of run
command mode selection is
correct
●Select correct mode
●switch the motor’s
connection of terminals
U,V,W
Motor’s
rotation
direction is
contrary
Whether the connection of
terminals U,V,W is correct
●Adjust parameter value of
P2.25
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