Err 9 (Encoder signal fault)
Potential cause
Encoder wiring error
Encoder cable and/or connector
is bad
Servomotor type setting is not
correct.
Encoder is damaged
Check
Check the encoder wiring
Check cable and connector
Check the servomotor type
Check the encoder
6.2 The reason and handling of alarm
Handle
Correct wiring.
Replace the cable and connector.
Set the servomotor type again.
Replace the encoder.
Err11 (IGBT model fault)
Potential cause
Short-circuit at drive
output (U、V、W)
Motor winding insulation is
damaged
Check
Check U、V、W wiring
Check the servomotor
Servo driver is damaged
Ground is bad
Suffer from interference
Check the servo driver
Check the ground wiring
Check interference source
Handle
Repair or replace the short-circuited
wiring.
Known the servomotor to be no fault, and
then turn on the power supply again, if
the alarm still exists, the servo driver may
damage possibly. Replace the servo
driver.
Replace the servo driver.
Ground correctly.
Adds line filter; Keep away interference
source.
Err12 (Over-current)
Potential cause
Short-circuit at drive
output (U、V、W)
Motor winding insulation is
damaged
Servo driver is damaged
Check
Check the wiring connections
between servo driver and
servomotor.
Check the servomotor
Handle
Repair or replace the short-circuited
wiring.
Replace the servomotor.
Check the servo driver
Known the servomotor to be no fault, and
then turn on the power supply again, if
the alarm still exists, the servo driver may
damage possibly. Replace the servo
driver.
83
    "