Mitsubishi Electric MELSEC-Q QD75M User Manual page 752

15 TROUBLESHOOTING
Related buffer memory address
Axis 1 Axis 2 Axis 3
Input signal logic selection
31 181 331
— — —
— — —
Auto tuning
30108 30208 30308
Servo response
30109 30209 30309
— — —
— — —
— — —
— — —
Check point
Axis 4
481
—
—
30408
30409
—
—
—
—
• Review operation pattern.
• Install limit switches.
Change the servomotor.
Connect correctly.
• Change the slot of the drive unit whose load is
large.
• Reduce the load.
• Reexamine the operation pattern.
• Use a servomotor whose output is large.
• Repeat acceleration/deceleration to execute
" Pr.108 Auto tuning".
• Change " Pr.109 Servo response" setting.
• Set " Pr.108 Auto tuning" to OFF and make gain
adjustment manually.
Connect correctly.
Remove the alarm causes of all drive units where
alarm has occurred.
Repair or change the cable.
Set the IFU parameter value correctly.
IFU parameter
Correct the protocol.
Repair or change the cable.
Change the communication device (e.g. personal
computer).
15 - 89
MELSEC-Q
Corrective action
Pr.1
.