4290

Sign of life monitoring: local P-bus not alive

Definitions:

The COM computer must alter the sign-of-life on the local P-bus in each SERVO cycle. Monitoring for alteration takes place in the IPO cycle. If the sign of life has not altered, this alarm is triggered.

Reactions:

-    NC not ready.

-    Channel not ready.

-    NC Start disable in this channel.

Remedy:

Program Continuation:

-    Interface signals are set.

-    Alarm display.

-    NC Stop on alarm.

Please inform the authorized personnel/service department. Check hardware.

Switch control OFF - ON.