Maxsine EP3 AC Series, User Manual

Page: 213 / 246

7.2 The reason and handling of alarm
203
Err 8 (Overflow of position deviation counter)
Potential cause Check Handle
The servomotor is blocked Check the servomotor
shaft and its mechanical
connection
Repair.
The command pulse is
abnormal Check command pulse
Err 9 (Encoder signal fault)
Potential cause Check Handle
Encoder wiring error Check the encoder wiring Correct wiring
Encoder cable and/or
connector is bad Check cable and connector Replace the cable and connector.
Servomotor type setting is
not correct. Check the servomotor type Set the servomotor type again.
Encoder is damaged Check the encoder Replace the encoder.
Err11 (IGBT model fault)
Potential cause Check Handle
Short-circuit at drive
output (U
、
V
、
W)
Check U 、 V 、 W wiring Repair or replace the
short-circuited wiring.
Motor winding insulation
is damaged Check the servomotor Replace the servo motor
Servo driver is damaged 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.
Ground is bad Check the ground wiring Ground correctly.
Suffer from interference Check interference source Adds line filter; Keep away
interference source.