Chapter 5 Methods of Anomaly Diagnosis | VFD-VJ
5-3
5-1-2 Error Messages Displayed on Digital Operation Panel KPVJ-LE02
No. Display Code
Fault
Description
Troubleshooting
Fault codes
defined by
Delta
(2021H
Low Byte)
CANopen
Fault
Register
(1001H
bit 0~7)
DS402
Fault
Codes
(603FH)
E1
ocA
Over current
occurs in
acceleration;
output current
exceeds by three
times the rated
current of the
drive.(ocA)
1. Check if the insulation of the wire from
U-V-W to the hybrid servo motor is bad.
2. Check if the hybrid servo motor is
stalled.
3. Such errors occur when the red light of
PG card flashes. The causes of these
errors could be loose contact/
disconnection between encoder, motor
drive and motor.
4. When such errors occur at the
beginning, during or at the end of
pressure/ flow command
Adjust also the ramp up/down
rate of pressure/flow
command (Pr00-29 to
Pr00-32)
or
Adjust the pressure/ flow
reference time (Pr00-46~
Pr00-49) or
Adjust the slope from the
hybrid servo drive.
5. When such errors occur while pressure/
flow command is constant, adjust PI value
(Pr00-20 ~ Pr00-25)
6. Make sure if there is any disturbance/
noise, set Pr00-04: #11 (Pressure
feedback), #12(Pressure command), 25
(flow rate command). Then observe if the
values fluctuate.
7. Replace the hybrid servo drive with a
larger output capacity model.
0001H
1
2213H
E2
ocd
Over current
occurs in
deceleration;
output current
exceeds by three
times the rated
current of the
drive. (ocd)
0002H
1
2213H
E3
ocn
Over current
occurs during
constant speed.
Output current
exceeds by three
times the rated
current of the
drive. (ocn)
0003H
1
2214H
E4
GFF
Ground fault:
Ground wire
protection
applies when
one of the output
terminal is
grounded and
the ground
current is higher
than its rated
value by over
80%. Note that
this protection is
only for hybrid
servo drive and
not for human.
(GFF)
1. Check the wire of hybrid servo motor
is shorted or grounded.
2. Check if IGBT power module is
damaged
3. Check if the output side wire has bad
insulation.
0004H
1
2240H
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