YASKAWA S Series User Manual page 90

5.4.3 Servo Alarm Output (ALM, ALM-SG)
The power drive circuit in the SERVOPACK will turn OFF and the alarm status will be displayed
i f any error detection function shown in Table 5.2 operates. Details of the alarm will be sent by
a MECHATROLINK response message, the red indicator on the SERVOPACK will light, and
the alarm output (ALM, ALM-SG) will turn OFF. See Table 5.2 for more details on alarm codes.
5.4.4 Handling Protection Circuit Operation
An alarm signal output indicates some kind of error. Determine the cause, take appropriate ac-
tion, and then resume operation.
■ Error Troubleshooting
Check the error data for past occurrences using the error traceback mode of the MECHATRO-
LINK communications, and implement the remedy listed in Table 12.6, on page 12 -6.
5.4.5 Servo Alarm Reset
To reset the SERVOPACK when a servo alarm occurs, send the MECHATROLINK ALM_CLR
command, or turn the power OFF and then back ON.
5.5 Indications
The following indications are made on the front panel of the SERVOPACK.
• Power ON: Green LED lights.
• Alarm occurred: Red LED lights.
• During MECHATROLINK communication: Green LED lights.
5 -9
5.5 Indications