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Heat/cool sdac high signal, Heat/cool action, Heat/cool power limit – Watlow CPC400 User Manual

Page 132

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Chapter 5: Menu and Parameter Reference

CPC400 Series User’s Guide

118

Watlow Anafaze

Doc. 0600-2900-2000

Heat/Cool SDAC High Signal

For a Serial DAC output, enter the high output signal level
for the Serial DAC. The Serial DAC converts 100 percent
output from the controller to the value set here.

Enter the high and low values that match the input range
of the output device. For instance, if the output device has
a 4 to 20 mA input range, then set SDAC hi signal to 20 mA
and set SDAC low signal to 4 mA.

Values: 0.10 to 10.00VÎ (dc) (10 to 1000) or 0.10 to 20.00
mA (10 to 2000) This value must be greater than the value
of SDAC low signal. Values in parentheses are for serial
communications or LogicPro.
Default: 10.00VÎ (dc) (1000) or 20.00 mA (2000)
Modbus Address (Loops 1 to 9): 44375 to 44383 (heat) or
44392 to 44400 (cool)
Parameter Number: 82 (heat) or 83 (cool)
LogicPro Driver: Database
LogicPro Address (Loops 1 to 9): 82.1 to 82.9 (heat) or
83.1 to 83.9 (cool)

Heat/Cool Action

Choose the control action for the output. When the action is
set to reverse, the output goes up when the process variable
goes down. When the action is set to direct, the output goes
down when the process variable goes down. Normally, heat
outputs are set to reverse action and cool outputs are set to
direct action.

Values: reverse (0) or direct (1). Values in parentheses are
for serial communications and LogicPro.
Default: reverse (0) for heat outputs, direct (1) for cool out-
puts
Modbus Address (Loops 1 to 9): 40171 to 40179 (heat) or
40188 to 40196 (cool)
Parameter Number: 10 (heat) or 11 (cool)
LogicPro Driver: Database
LogicPro Address (Loops 1 to 9): 10.1 to 10.9 (heat) or
11.1 to 11.9 (cool)

Heat/Cool Power Limit

Use this parameter to limit the output power for a heat or
cool output. This limit may be continuous, or it may be in
effect for the number of minutes specified at the next pa-
rameter.

The power limit only affects loops in automatic mode. It
does not affect loops in manual mode.

Values: 0 to 100% (0 to 1000). Values in parentheses are
for serial communications and LogicPro.
Default: 100% (1000)
Modbus Address (Loops 1 to 9): 44171 to 44179 (heat) or

l01 Ht SDAC hi r
signal b10.00vdc

l01 Heat actionr
breverse

l01 Heat power r
limit b100%