User manual of EL8-EC***F AC Servo
309
8.3 Alarm Handling
**When error occurs, please solve accordingly. Then, restart. If the solutions described
don’t work, please consider replacing the driver.
Error
code
Main
Sub
Display:
“
Er 090
”--“
Er 09F
”
09
0~F
Content:
FPGA communication error
Cause
Diagnosis
Solution
L1, L2 terminal voltage too
low
Verify L1, L2 terminal
voltage
Make sure L1, L2 terminal voltage is
within recommended range
Error
code
Main
Sub
Display:
“
Er 0A0
”--“
Er 0A1
”
0A
0~1
Content:
Circuit current detection error
Cause
Diagnosis
Solution
Motor power cable wiring
error
Verify motor power cable
wiring
Make sure U,V,W terminal wired
properly
Main power supply
undervoltage
Verify L1,L2,L3 terminal
voltage
Increase main power supply voltage
Error
code
Main
Sub
Display:
“
Er 0A2
” / “
Er 0A4
”
0A
2 / 4
Content:
Analog input error
Cause
Diagnosis
Solution
Analog input wiring error
Verify analog input wiring
Make sure of analog input wiring
connection
Error
code
Main
Sub
Display:
“
Er 0A3
”
0A
3
Content:
Motor power cable not connected
Cause
Diagnosis
Solution
Motor power cable not
connected
Verify motor power cable
wiring
Measure
resistance values
between U, V, W terminals
, make
sure the values are almost equal. If
not, might be due to damaged motor
or motor winding open circuit.
Motor fault
/
Replace motor
