IMO iDrive Instruction Manual page 81

Motor overheating
Is the load or the
current exceeding the
specified value?
NO
Does motor run
at low speed for
a long time
?
NO
Are voltages between
even
?
YES (within +-3% of output voltage)
Is there anything
preventing cooling
the motor?
NO
Poor connection between
iDrive and motor
Motor runs unevenly
Does it happen
when accelerating/
decelerating?
NO
Are output voltages
between
balanced?
YES (within +-3% of rated output voltage )
Is the load
fluctuating?
NO
Vibration in
transmission parts
such as gears?
Small
YES
Reduce the load
Increase capacities of iDrive and
the motor
YES
Use forced cooling on motor
No
YES
Clear the problem
YES
Check connections
YES
Is the
acceleration/dec
eleration time
suitable?
NO
YES
Large
5-12
Chapter 5 Trouble shooting and maintenance
iDrive fault
NO
Increase the acc/dec time
YES
Reduce the load
Increase capacities of iDrive
and the motor
iDrive fault
‧Reduce the load fluctuation
or add a flywheel
Inspect the mechanical system
Contact iDrive supplier