Hysteresis, Restore automatic mode, Hysteresis 138 – Watlow Series D8 User Manual

Page 156: Restore automatic mode 138

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Chapter 6: Menu and Parameter Reference

Series D8 User’s Guide

138

Watlow Anafaze

Doc. 0600-3120-2000

Hysteresis

Specify how much the process variable must deviate from set

point before the output can switch between on and off (for on/

off control) or switch between heating and cooling (for heat/

cool control).

Values:

See Table 6.12 for values and decimal placement.

For communications the value is always 0 to 5000, see

Table 6.12 for implied decimal location.
Default:

See Table 6.12

DeviceNet Object:

Control (66 hex)

Table 6.12

Values for the Control Hysteresis
and Deviation Alarm Parameters

Restore Automatic Mode

Choose a digital input. If the input is connected to controller

common, the loop returns to automatic control mode after a

failed sensor is repaired (if it was in automatic mode when the

sensor failure occurred).

Values:

enabled by D/I1 to enabled by D/I8 (1 to 8) or dis-

abled

(0). Values in parentheses are for communications.

Default:

disabled (0)

DeviceNet Object:

Control (66 hex)

Input Type

Display Format

Values

Default

Thermocouple

n/a

0 to 500

5

RTD

n/a

0 to 500.0

5.0

Process

-999 to 3000

0 to 500

5

-9999 to 30000

0 to 5000

50

-999.9 to 3000.0

0.0 to 500.0

5.0

-99.99 to 300.00

0.00 to 50.00

0.50

-9.999 to 30.000

0.000 to 5.000

0.050

-0.9999 to 3.0000

0.0000 to 0.5000

0.0050

l01 Hysteresis r
b 5 ˚C

l01 RestoreAutor
bdisabled

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