Over Current (Oc); Ground Fault (Gff) - Delta HES Series Instructions For Use Manual

5-2 Over Current (OC)

Remove short circuit
Troubleshoot
or ground fault
short circuit
Reduce load or
increase hybrid servo
controller capacity

5-3 Ground Fault (GFF)

Check if the output
circuit (cable or motor)
of hybrid servo controller
is shorted to ground
ocA
Over current in
acceleration
Yes
GFF
Ground fault
Yes
Resolve
ground fault
Chapter 5 Methods of Anomaly Diagnosis
ocd
over current in
deceleration
Check for any shorts between
motor connection terminals U,
V, and W or shorts to ground
No
Yes
Check for overload
No
It's likely hybrid servo
controller breaks down or
malfunctions due to
noise. Please contact
Delta for assistance.
It's likely hybrid servo controller
No
breaks down or malfunctions
due to noise. Please contact
Delta for assistance.
5-9
HES Series
oc
over current
while running at
constant speed