Chapter 5 Methods of Anomaly Diagnosis | VFD-VJ
5-11
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)
U-pase and
V-phase are turned
on.(A.oc)
E80
b.oc
The V-phase short
is detected before
running the servo
drive because
V-pase and
W-phase are
turned on.(b.oc)
Only after this fault occurs for 5 seconds, you
can reset the servo drive.
If this fault is
persistent, send it back to the
manufacturer for repairing.
0050h 2 0x2213H
E81
c.oc
The W-phase short
is detected before
running the servo
drive because
U-pase and
W-phase are
turned on.(c.oc)
Only after this fault occurs for 5 seconds, you
can reset the servo drive.
If this fault is
persistent, send it back to the
manufacturer for repairing.
0051h 2 0x2213H
E82
Output Phase
Loss on Phase U
(oPL1)
1 Check if the wiring of motor to see if any
loose or broken wires.
2. Check if the resistance of each phase is
the same.
3. Use an ampere-meter to measure if the
three-phase current is in balance. If this
error code still pops up when it is in
balance, send back to manufacturer for
repair.
4. Choose a motor and a servo drive
which are compatible with each other.
0052H 2 FF29H
E83
Output Phase
Loss on Phase V
(oPL2)
0053H 2 FF29H
E84
Output Phase
Loss on Phase
W (oPL3)
0054H 2 FF29H
E87
Servo drive
overloading
while running at
low frequency
(oL3)
1. Reduce the ambient temperature of the
operating drive.
2. Replace the drive with a larger power
model.
3. Reset drive parameters or decrease
carrier frequency.
Send back to the manufacturer for repair if
none of the above works.
0057H 2 2310H
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