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Deviation band alarm, Deviation band alarm status, High deviation alarm output number – Watlow 8LS Controller User Manual

Page 78: 1 alarms dev ? 10, 1 alarms dev ? off, 1 hi dev outpn? 0

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70 8LS User’s Guide

Setup

Deviation Band Alarm

Use this menu to set the deviation bandwidth, a positive and negative
alarm point relative to the setpoint. If the setpoint changes, the alarm
points also changes. You can assign a separate digital output to the high
and low deviation alarm setpoints. (For example, the high deviation
alarm turns on a fan, and a low deviation alarm turns on a heater.

Selectable values: 0-255.

Deviation Band Alarm Status

Use this menu to set the deviation alarm status. You can enable or
disable the alarm function.

Selectable values: On , Off.

High Deviation Alarm Output Number

Use this menu to assign a digital output which activates when the loop is
in high deviation alarm.

Selectable values: 0-30.

NOTE

All digital outputs are "OR’ed" together (com-
bined). 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.

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LOOP

PROCESS

UNITS

ALARM

SETPOINT

STATUS OUTPUT%

1 ALARMS

DEV ? 10

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8

LOOP

PROCESS

UNITS

ALARM

SETPOINT

STATUS OUTPUT%

1 ALARMS

DEV ? OFF

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LOOP

PROCESS

UNITS

ALARM

SETPOINT

STATUS OUTPUT%

1 HI DEV

OUTPN? 0