K/iK Series AC Servo Driver
133
Alarm
Alarm contents
Circumstance
Cause
Treatment measures
Power is turned off when alarm is being
entered
Servo drive circuit board develops fault
Replace the servo drive
□14
Over-speed
When control power
supply is on
Servo drive circuit board develops fault
Replace the servo drive
During servo ON
The phase sequence of U, V and M of motor
wiring is at fault
Correct motor wiring
Wiring of encoder is wrong
Correct wiring of encoder
Encoder wiring is malfunctioned due to
interference
Take anti-interference measures
for encoder wiring.
Servo drive circuit board develops fault
Replace the servo drive
When the servo motor
starts operation or
during high-speed
rotation
The phase sequence of U, V and M of motor
wiring is at fault
Correct motor wiring
Wiring of encoder is wrong
Correct wiring of encoder
Encoder wiring is malfunctioned due to
interference
Take anti-interference measures
for encoder wiring.
Input value of position/speed reference is too
much
Lower reference value
Speed reference input gain setting is wrong
Correct reference input gain
Servo drive circuit board develops fault
Replace the servo drive
□15
Position
counter
overflow
When the servo motor
starts
operation
or
during
high-speed
rotation
Motor stalling
Check the load
Input reference frequency is abnormal
Reduce frequency of command
computer
Wiring is wrong
Correct wiring
□16
Position error is too
large (position error
with
servo
ON
exceeds
user
parameter
overflow
level P□504 setting)
When control power
supply is on
Excessive position offset alarm level (P□504)
is incorrect
Set value of user parameter
P□504 to any value other than 0
Servo drive circuit board develops fault
Replace the servo drive
During
high-speed
rotation
Wiring of U, V and W of the servo motor is
abnormal (incomplete connection)
Correct motor wiring
Correct wiring of encoder
Servo drive circuit board develops fault
Replace the servo drive
When the servo motor
fails to rotate after
sending
position
reference
Wiring of U, V and W of the servo motor is
poor
Revise motor wiring
Servo drive circuit board develops fault
Replace the servo drive
During long reference
with normal action
Gain adjustment of servo drive is poor
Increase
speed
loop
gain
(P□100) and position loop gain
(P□102)
Position reference pulse frequency is too high
Slow reduce position reference
frequency
Add smoothing function
Reassess electronic gear ratio
Excessive position offset alarm level (P□504) Set user parameter P□504 to