Sensor fail heat or cool output, Heat or cool thermocouple break output average – Watlow CLS200 User Manual

Page 113

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CLS200 Series User’s Guide

Chapter 4: Setup

Doc.# 0600-3050-2000

Watlow Anafaze

97

Sensor Fail Heat or Cool Output

When a sensor fail alarm occurs or when the OUTPUT
OVERRIDE DIG INPUT
(page 77) becomes active on a loop
that is in automatic control, that loop goes to manual con-
trol at the percent power output set here.

Selectable values: 0 to 100%.

NOTE!

When a sensor fails or the override input is

detected, both the heat and cool outputs are

set to their fail settings. In most applications,

SENSOR FAIL HT OUTPUT and SENSOR

FAIL CL OUTPUT should be set to 0%.

WARNING!

Do not rely solely on the sensor fail alarm to

adjust the output in the event of a sensor fail-

ure. If the loop is in manual control when a

failed sensor alarm occurs, the output is not

adjusted. Install independent external safety

devices that will shut down the system if a

failure occurs.

Heat or Cool Thermocouple Break Output Average

If you set this parameter to ON and a thermocouple break
occurs, a loop set to automatic control status will go to man-
ual mode at a percentage equal to the average output prior
to the break.

Selectable range: ON or OFF

ALARM

01 SENSOR FAIL
HT OUTPUT ? 0%

ALARM

01 HEAT T/C BRK
OUT AVG ? OFF

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