Yaskawa MP940 Reference Manual - Manual (Page 357)

Troubleshooting MotionSuite™ MP940 Machine Controller Reference Manual
10-4
Troubleshooting
This section describes causes and remedies for problems which result in an alarm dis-
play, as well as for those not resulting in an alarm display.
Troubleshooting Problems with an Alarm Display
The panel operator displays “A.oo” or “CPF.oo” if an alarm is generated in
the servo amplifier. Note that A.-- does not indicate an alarm. The alarm
display and remedy are shown in the table below.
Contact your Yaskawa customer service representative if the problem cannot
be solved by the described procedures.
A.02
A.02 is the alarm display for user parameter breakdown.
The alarm output appears below.
Note: x indicates the output transistor is OFF (alarm state)
Status when Alarm Occurred
Alarm Output
Alarm Code Output ALM Output
ALO1 ALO2 ALO3
x x x x
Cause Remedy
A Power turned OFF during parameter write.
Alarm occurred at the next power ON. Replace servo amplifier.
B Circuit board (1PWB) defective. Replace servo amplifier.
An alarm occurs at power
ON
A, B