beautypg.com

Low process alarm output number, Alarm deadband – Watlow CAS User Manual

Page 73

background image

Setup

CAS User’s Guide 63

Low Process Alarm Output Number

This menu lets you assign the digital output that activates when the
channel is in low process alarm.

Selectable values: NONE, 1 to 34

NOTE

All digital outputs are combined. Therefore you can assign more
than one alarm to the same output number, and that output will be
On if any of those alarms is On.

Alarm Deadband

This menu lets you set an alarm deadband. This deadband value applies
to the high process, low process, high deviation, and low deviation
alarms for the channel you are editing.

The alarm deadband sets the hysteresis of the alarm action which is used
to avoid intermittent alarms as the PV returns to a normal state.

Selectable values: 0 to 255, 25.5, 2.55, .255, or .0255, depending on
your input menu setup.

CHANNEL PROCESS UNITS

CHANNEL NAME ALARM STATUS

01 LO PROC ALARM
OUTPUT ? NONE

CHANNEL PROCESS UNITS

CHANNEL NAME ALARM STATUS

01 ALARM DEAD
BAND ? 2° C