User Manual Of EL7-EC** AC Servo
271
Error
code
Main Sub
Display: “
Er 0E0”
0E
0
Content: Overcurrent
Cause
Diagnosis
Solution
Driver power output
short circuit
Verify if there is short circuit
between UVW terminals, or
shorted to PG.
1. Make sure there is no circuit.
2. Make sure motor is not
damaged
Motor wiring error
Verify motor wiring
Reconnect motor wiring
IGBT module short
circuit
Disconnect motor output cable.
Then, enable servo driver to
check for overcurrent
Replace driver
Excessive motor load
Verify if motor torque output is
too high
1. Reduce load
2. Add a gearbox
Excessive acceleration
and deceleration
Verify if acceleration and
deceleration duration time are
too low
Increase acceleration and
deceleration duration time
Motor wiring short
circuit
Connect motor power cable to
driver power output. Verify if
resistance value of UVW to PE is
equal and if there is short circuit
Replace motor
Error
code
Main Sub
Display: “
Er 0E1”
0E
1
Content: Intelligent Power Module (IPM) overcurrent
Cause
Diagnosis
Solution
Driver power output
short circuit
Verify if there is short circuit
between UVW terminals, or
shorted to PG.
1. Make sure there is no circuit.
2. Make sure motor is not
damaged
Motor wiring error
Verify motor wiring
Reconnect motor wiring
IGBT module short
circuit
Disconnect motor output cable.
Then, enable servo driver to
check for overcurrent
Replace driver
IGBT module
undervoltage
/
Replace driver
Excessive motor load
Verify if motor torque output is
too high
1. Reduce load
2. Add a gearbox
Excessive acceleration
and deceleration
Verify if acceleration and
deceleration duration time are
too low
Increase acceleration and
deceleration duration time
Motor wiring short
circuit
Connect motor power cable to
driver power output. Verify if
resistance value of UVW to PE is
equal and if there is short circuit
Replace motor