Despatch MIC1462 Controller Manual - Manual (Page 66)

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Notes:
1. Correct operation of the Loop Alarm depends upon reasonably accurate PID tuning.
2. The Loop Alarm is automatically disabled during Manual Control Mode and during
execution of the Pre-Tune facility. Upon exit from Manual Control Mode or after
completion of the Pre-Tune routine, the Loop Alarm is automatically re-enabled.
When full ON/OFF control is selected (i.e. Proportional Band 1 is set to 0) and Loop
Alarm is enabled, the Loop Alarm Time parameter determines the duration of the
saturation condition after which the Loop alarm will be activated. It may be adjusted
within the range 1 second to 99 minutes 59 seconds. This parameter is omitted from
the display sequence if ON/OFF control is not selected or Loop Alarm is disabled. The
default setting is 99:59.