Chapter 6 Troubleshooting
68
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 technical support if the measure does not
work
Table 6-3 Motor fault and corrective measure
Fault
Check Content
Corrective Measures
The motor
failsto run
Check whether the power is supplied
to the power terminals R, S and T and
whether the CHARGE LED indicator
light is on.
Be connected to the power supply
Disconnect the power supply and
then be connected to it again.
Check the power voltage
Check whether the terminal screws
have been tightened
The motor
failsto run
Test whether the voltage of
terminals U, V and W is correct with
the rectifier voltmeter
Disconnect the power supply and
then be connected to it again.
Check whether the motor has been
locked due to overload
Reduce the load and remove the
lockout
Check whether there is fault display
on the keypad and whether the TRIP
light is flickering
Search Table 6-1 according to the
fault codes
Check whether there is the operation
command
Check whether the operating
terminal connection lines are
connected reliably
Check whether the anti-reverse
selection setting conflicts with the
direction command
Set the reverse allowing or change
the direction command
Check whether the terminal operation
signal is disconnected first and then
connected after the fault occurs
The terminal operation signal is
disconnected first and then
connected
Check whether the given frequency
voltage is input
Check the given frequency voltage
Check whether the operation manner
is set correctly
Input the correct setting
The
motorrotate
s reversely
Check whether the connection lines
of terminals U, V and W are correct
Adjust the corresponding connection
lines of terminals U, V and W
Adjust the function code P2.45
The motor
rotates but
cannot
change the
speed
Check whether the connection lines
of frequency reference circuit are
correct
Correct the connection lines
Check whether the load is too large
Reduce the load or increase the
acceleration or deceleration time
The motor
rotating
speed is too
high or too
low
Check whether the maximum output
frequency setting value is correct
Check the maximum output
frequency setting value
Check whether the voltage drop
between the motor terminals is too
large with the rectifier voltmeter
Check the V/F characteristic value
Summary of Contents for AS600M Series
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