Mitsubishi A1SD75M3 User Manual page 635

14 TROUBLESHOOTING
Relevant buffer memory
address
Axis 1 Axis 2 Axis 3
102 252 402
Servo response setting
109 259 409
When the servomotor shaft is rotated slowly
with the servo OFF, the cumulative feedback
pulses should vary in proportion to the rotary
angle. (If the indication skips or returns
midway, the encoder is faulty.)
Servo response setting
109 259 409
When the servomotor shaft is rotated slowly
with the servo OFF, the cumulative feedback
pulses should vary in proportion to the rotary
angle. (If the indication skips or returns
midway, the encoder is faulty.)
Checking method
14 - 47
Remedy
Change the servo amplifier.
Set " Pr.102 Regenerative brake resistor" correctly.
Review environment so that ambient temperature is 0 to
40°C.
1. Reduce load.
2. Review operation pattern.
3. Use servomotor that provides larger output.
Change servomotor.
1. Reduce load.
2. Review operation pattern.
3. Use servomotor that provides larger output.
1. Repeat acceleration/deceleration to execute auto
tuning.
2. Change " Pr.109 Servo response setting".
3. Set auto tuning to OFF and make gain adjustment
manually.
1. Review operation pattern.
2. Install limit switches.
Connect correctly.
Change the servomotor.
1. Review operation pattern.
2. Install limit switches.
Connect correctly.
1. Repeat acceleration/deceleration to execute auto
tuning.
2. Change " Pr.109 Servo response setting".
3. Set auto tuning to OFF and make gain adjustment
manually.
Change the servomotor.
MELSEC-A