Filter
Top Products
Revision May 2009, 06EE, V0.50 5-1
Chapter 5 Troubleshooting
5.1 Over Current (OC)
oc
Over-current
during constant speed
Check if there is any
between the U, V, W and motor
short circ ui ts and
grounding
Yes
No
No
Yes
Yes
Remove s hort cir cuit
or ground fault
Reduce the load or
increase the power
of brushless DC
motor dr ive
No
Reduce torque
compensation
Reduce torque
compensation
Maybe brushless DC motor
drive has malfuncti on or error
due to noise. Please
contact DELTA.
Yes
Reduce load or increase
the power of brushless
DC motor drive
Check if load is too large
No
Has load changed
suddenly?
Reduce load or increase
the power of AC motor
drive