5-10 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Motor Overheating 
 
Reduce the load. 
Increase capacities of E310 
and the motor. 
Select the motor again
E310faults 
Correct the bad connection
Clear the deterrence 
Bad connection between 
E310 drive and the motor
Is load or current 
exceeding the specified 
value? 
 
 
 
Is motor running at 
low speed for a long 
time? 
Is motor voltage 
between
T1-T2-T3 
Is there any 
deterrence preventing 
coolin
 of the moto
 
Motor runs unevenly 
 
 
Is the load 
fluctuating? 
 
 
Does it happen 
during deceleration?
Are the output voltages 
between T1-T2-T3 
balanced? 
Any mechanical vibration or 
gear backlash? 
Is the 
acceleration time 
correct? 
Increase the Acc/ Dec time 
Reduce the load. 
Increase capacities of 
E310 
and the motor.
 
E310 faults 
Reduce the load fluctuation 
or add a flywheel. 
Inspect the mechanical system 
E310 faults 
YES 
YES 
YES 
YES 
YES 
within ±3% of the normal value
YES 
within ±3% of rated out
ut volta
e 
YES 
YES
YES 
O
O 
O 
O 
O 
O 
O 
Minimal 
Figure 5-5 Motor Overheat Troubleshooting Flow Chart 
Figure 5-6 Motor Instability Troubleshooting Flow Chart