Watlow CPC400 - Manual (Page 125)

CPC400 Series User’s Guide Chapter 5: Menu and Parameter Reference
Doc. 0600-2900-2000 Watlow Anafaze 111
Control Menu
Use the Control menu to adjust heat and cool control pa-
rameters, including:
• Proportional band, integral and derivative
• Output filter
• Control hysteresis
The controller has separate PID and filter settings for heat
and cool outputs. In this section, only the heat screens are
shown, but the explanations apply to both the heat and cool
parameters.
If you have not set up a CPC400 series controller before, or
if you do not know which values to enter, read the Tuning
and Control chapter, which contains PID tuning constants
and useful starting values.
Heat/Cool Proportional Band
Enter the proportional band. A larger value yields less pro-
portional action for a given deviation from set point.
Values: For a thermocouple or RTD input, see Table 5.12.
For a process or pulse input, 1 to the span of the input
range (Input range high - Input range low).
Default: 40 for a thermocouple, RTD or process input; 100
for a pulse input.
Modbus Address (Loops 1 to 9): 40001 to 40009 (heat) or
40018 to 40026 (cool)
Parameter Number: 0 (heat) or 1 (cool)
LogicPro Driver: Database
LogicPro Address (Loops 1 to 9): 0.1 to 0.9 (heat) or 1.1
to 1.9 (cool)
Decimal Placement for Modbus or LogicPro: See Dec-
imal Placement for Numeric Values on page 80.
Table 5.12 Proportional Band Values
Type of Sensor Values in ˚F Values in ˚C
J Thermocouple 1 to 1750 1 to 972
K Thermocouple 1 to 2950 1 to 1639
T Thermocouple 1 to 1200 1 to 667
S Thermocouple 1 to 3200 1 to 1778
R Thermocouple 1 to 3210 1 to 1784
B Thermocouple 1 to 3350 1 to 1694
E Thermocouple 1 to 1776 1 to 987
RTD 0.1 to 1478.0 0.1 to 821.1
l01 Control r
Other menus b
l01 Heat prop r
band b 40 ˚F