[Cause]
A fault was detected in the safety signal input circuit. In a system with multiple safety I/O devices, the number of the safety I/O device where the alarm occurred is displayed at the end of the alarm message, as in (1). The safety I/O device number can be checked on the DCS Safety I/O Device interface.
[Countermeasure]
1. Replace the emergency stop board.
2. For a B cabinet, replace the safety I/O board.
Note To clear this alarm, power needs to be cycled.SERVO DCS OFFCHECK Alarm %x, %x %s
[Cause]
A fault was detected in the safety signal input circuit. In a system with multiple safety I/O devices, the number of the safety I/O device where the alarm occurred is displayed at the end of the alarm message, as in (1). The safety I/O device number can be checked on the DCS Safety I/O Device interface.
[Countermeasure]
1. Replace the emergency stop board.
2. For a B cabinet, replace the safety I/O board.
Note To clear this alarm, power needs to be cycled.