IMO iDrive - 5.1 Fault indication and remedy

Chapter 5 Trouble shooting and maintenance
5-6
5.2 General functional troubleshooting
Status Checking point Remedy
Is power applied to L1, L2, and L3(N)
terminals (is the charging indicator lit)?
Is the power applied?
Turn the power OFF and then ON
again.
Make sure the power voltage is
correct.
Make sure terminals are fully
tightened.
Is there voltage output at T1, T2, and T3
terminals?
Turn the power OFF and then ON
again.
Is the motor mechanically overloaded?
Reduce the load to allow the motor
to rotate.
Are there any abnormalities in the
inverter?
Is forward or reverse run command
issued?
See error descriptions to check wiring
and correct if necessary.
Is there an analog input signal?
‧Is analog frequency input signal
wiring correct?
Is voltage of frequency input
correct?
Motor can not
run
Is operation mode setting correct?
‧Check parameter setting
Is output wiring on terminals T1, T2, and
T3 correct?
Wiring must match U, V, and W
terminals of the motor.
Motor runs in
wrong direction
Is wiring for forward and reverse signals
correct?
Check wiring is correct if necessary.
Are wiring for output terminals T1, T2,
and T3 correct?
Check wiring is correct if necessary.
Is the setting of frequency command
source correct?
Check the operation mode setting at
the keypad.
The motor
speed can not
vary
Is the mechanical load too heavy?
Reduce load.
Is the setting of operation mode correct? Confirm the motor’s specifications.
Is the load too heavy?
Confirm the gear ratio.
Motor running
speed too high
or too low
Are specifications of the motor (poles,
voltage…) correct?
Confirm the highest output
frequency.
Is the gear ratio correct? Reduce the load.
Is the setting of the highest output
frequency correct?
Minimize the variation of the load.
Increase capacities of the inverter
and the motor.
Motor speed
varies
unusually
Is the load too heavy?
Add an AC reactor at the power
input side if using single-phase
power.
Check wiring if using three-phase
power.