GSK CNC Equipment Co., Ltd.
58
20
Data and detecting alarm of
EEPROM
EEPROM chip damaged
22 Zero-adjusting error of encoder Zero-adjusting fail of encoder
23 Current sampling fault Current sampling circuit fault
32
Encoder UVW signals code
invalid
Complete high or low level of UVW signals
7.2 Alarm troubleshootings
Alarm
code
Alarm name Running state Cause Remedy
Occurring in switching
on control power
supply
① Control circuit board fault
② Encoder fault
① Change servo driver
② Change servo motor
① The frequency of
instruction pulse input is
overhigh.
① Set correctly the input
instruction pulse.
① Acceleration/deceleration
time constant is too small to
cause the speed
overshooting too large.
①Increase acceleration
/deceleration time constant.
① The electronic gear ratio
input is too large.
① Set it correctly.
① Encoder fault ① Change the servo motor.
① Encoder cable is inferior.
① Change the encoder cable.
Occurring in motor
running
① Servo system is not stable
to cause the overshooting.
① Set the related gain
again.
② If the gain can not be set
to a proper value, reduce
rotation inertia ratio of load.
① The load inertia is too large.
① Reduce load inertia.
② Change driver and motor
with larger power ones.
Err-1 Overspeed
Occurring in the
starting of the motor
① Encoder zero fault
① Change servo motor.
② Re-adjust encoder zero
by manufacturer.
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