14 - 77
MELSEC-A
14 TROUBLESHOOTING
Relevant buffer memory
address
Axis 1 Axis 2 Axis 3
Servo status at
warning occurrence
Checking method Remedy
Repair cable or change battery.
Servo ON continued
Change battery.
120 270 420
Remove the cause of droop pulse
occurrence.
76
77
226
227
476
477
Servo ON continued
Reduce creep speed.
Servo ON continued
Call the status display and check
regenerative load ratio.
1. Reduce frequency of positioning.
2. Change regenerative brake option for
the one with larger capacity.
3. Reduce load.
Servo ON continued
Refer to error code: 2050, 2051
(Section 14.2.4).
Refer to error code: 2050, 2051 (Section
14.2.4).
Take noise suppression measures.
Servo ON continued
Change the servomotor.
Refer to section "5.2.10
Servo parameters for MR-
J2S-B".
Servo ON continued
Set correctly.
123 273 423 Servo OFF
Ensure safety and deactivate emergency
stop.
SSCNET cable continuity check Repair or change the cable.
Change the servo amplifier.
Servo OFF
Change the AD75.
Servo OFF Switch ON main circuit power.
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