[Al. 515_Memory Error 2 (Rom) (Safety Sub-Function)] - Mitsubishi Electric MR-J5-G Series User Manual

[AL. 515_Memory error 2 (ROM) (safety sub-function)]

• The internal part of the servo amplifier (ROM) has malfunctioned.
[AL. 515.9_ROM error B at power-on (safety sub-function)]
Cause
1.
There is a problem with operation of ROM at
power-on.
2.
There is a problem with the surrounding
environment.
3.
The frequency of writing exceeded 100,000.
[AL. 515.A_ROM error B during operation (safety sub-function)]
Cause
1.
There is a problem with operation of ROM in
normal operation.
2.
Take actions according to the instructions of 2. to 3. in the following item.
Page 135 [AL. 515.9_ROM error B at power-on (safety sub-function)]
Check/action method
Noise from the power supply may have caused the failure. Disconnect all
cables except for those for the control circuit power supply, then check the
repeatability. If the failure continues, the servo amplifier may have
malfunctioned. Replace the servo amplifier.
Check the power supply for noise. If there is noise, take countermeasures to
reduce the noise.
Refer to "Noise reduction techniques" in the following manual.
MR-J5 User's Manual (Hardware)
Check if excessively frequent changes have been made to parameters, then
replace the servo amplifier. After replacing the servo amplifier, adjust the
processing so as to reduce the number of times changes are made to
parameters.
Check/action method
Check if this alarm occurs when changing a parameter during normal
operation. If the alarm occurs, replace the controller.
1 SERVO AMPLIFIER TROUBLESHOOTING
1.3 Handling methods for alarms/warnings
1
Model
[G]
[WG]
Model
[G]
[WG]
135