Chapter 5 Methods of Anomaly Diagnosis | VFD-VJ
5-9
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)
E56
Illegal data value
(cE3)
Verify if the data value is bigger than the
maximum or smaller than the minimum
value.
0038H
4
7500H
E57
Data is written to
read-only
address (cE4)
Verify if the communication address is
correct.
0039H
4
7500H
E58
Modbus
transmission
time-out (cE10)
Verify the wiring and grounding of the
communication circuit. Press RESET
button on the keypad to clear this error
code. If cE10 persists, send back to
manufacturer for repair.
003AH
4
7500H
E60
Brake transistor
error (bF)
Press RESET button on the keypad to
clear this error code. If bF persists, send
back to manufacturer for repair.
003BH
5
7110H
E65
Hardware error
of PG card or
magnetic pole
tuning fault
(PGF5)
Verify the setting of Pr.01-07 Motor
Parameter Auto Tuning. If this fault is
persistent, send it back to the
manufacturer for repairing.
0041H
5
FF29H
E66
Overpressure
(ovP)
1. Check if the pressure sensor is
working properly and if its
specification is correct.
2. Adjust pressure PI control
Pr.00-20~00-37
3. Check if the wiring of pressure sensor
is correct.
4. Check the position of SW100 dip
switch (current type or open collector)
on the control board if correct.
0042H
5
FF29H
E67
Pressure
feedback error
(PfbF)
1. Check if the wiring of pressure sensor
is correct. It could be open-circuit.
2. Check if the pressure sensor signal is
below 1V.
0043H
5
FF29H
E68
Oil pump runs
reversely (Prev)
1. Check if there’s any zero shift at the
pressure sensor.
2. Check if the wiring of pressure sensor
is correct.
0044H
5
FF29H
E69
Oil shortage
(noil)
1. Check the amount of oil in the oil tank.
2. Check if any leakage at hydraulic
circuit.
3. If there’s a suction filter installed at
0045H
5
FF29H
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