8. TROUBLESHOOTING
8 - 1
8. TROUBLESHOOTING
POINT
Refer to "MELSERVO-J4 Servo Amplifier Instruction Manual (Troubleshooting)"
for details of alarms and warnings.
If an alarm which indicates each axis in the stop method column occurs, the axis
without the alarm operates the servo motor as per normal.
As soon as an alarm occurs, make the Servo-off status and interrupt the main
circuit power.
[AL. 37 Parameter error] and warnings (except [AL. F0 Tough drive warning])
are not recorded in the alarm history.
When an error occurs during operation, the corresponding alarm or warning is displayed. When an alarm or
warning is displayed, refer to "MELSERVO-J4 Servo Amplifier Instruction Manual (Troubleshooting)" to
remove the failure. When an alarm occurs, ALM (Malfunction) will turn off.
8.1 Explanation for the lists
(1) No./Name/Detail No./Detail name
Indicates each No./Name/Detail No./Detail name of alarms or warnings.
(2) Processing system
Processing system of alarms is as follows.
Each axis: Alarm is detected for each axis.
Common: Alarm is detected as the whole servo amplifier.
(3) Stop system
This means target axis to stop when the alarm occurs.
Each axis: Only alarming axis will stop.
All axes: All axes will stop.
(4) Stop method
For the alarms and warnings in which "SD" is written in the stop method column, the servo motor stops
with the dynamic brake after forced stop deceleration. For the alarms and warnings in which "DB" or
"EDB" is written in the stop method column, the servo motor stops with the dynamic brake without forced
stop deceleration.
(5) Alarm deactivation
After the cause of the alarm has been removed, the alarm can be deactivated by any of the methods
marked in the alarm deactivation column. Warnings are automatically canceled after the cause of
occurrence is removed. Alarms are deactivated with alarm reset, CPU reset, or cycling the power.
Alarm deactivation
Explanation
Alarm reset
1. Error reset command from controller
2. Pushing "Occurring Alarm Reset" in the "Alarm Display" window of MR
Configurator2
CPU reset
Resetting the controller itself
Cycling the power
Turning the power off and then turning it on again.
Summary of Contents for MR-J4W2-0303B6
Page 39: ...2 INSTALLATION 2 8 MEMO ...
Page 97: ...4 STARTUP 4 20 MEMO ...
Page 181: ...6 NORMAL GAIN ADJUSTMENT 6 28 MEMO ...
Page 235: ...9 DIMENSIONS 9 6 MEMO ...
Page 245: ...10 CHARACTERISTICS 10 10 MEMO ...
Page 309: ...13 USING STO FUNCTION 13 14 MEMO ...
Page 365: ...15 USING A DIRECT DRIVE MOTOR 15 24 MEMO ...
Page 389: ...16 FULLY CLOSED LOOP SYSTEM 16 24 MEMO ...
Page 461: ...17 APPLICATION OF FUNCTIONS 17 72 MEMO ...
Page 556: ...APPENDIX App 41 ...
Page 585: ...MEMO ...