Ptrn cp c-cp, Program pattern, Control period (heat) control period (cool) – Rockwell Automation 900-TC32 Digital Temperature Controllers, Series B User Manual

Page 285

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Publication 900-UM007D-EN-E - January 2011

Parameter Functions & Definitions

5-57

Program Pattern

Function:

This parameter allows you to select the type of control when using

the simple program function. If the program functionis set to:

• OFF, the simple program will not operate.

• STOP, the RUN/STOP status will change to STOP after the soak time

has expired.

• CONT, control will continue in RUN status after the soak time has

expired.

Related Parameters

• Program Start, Soak Time Remain (page 5-15), RUN/STOP (page 5-16)

(Operation function group)

• Soak Time, Wait Band (Adjustment function group, page 5-39)
• Soak Time Unit (Advanced Setting function group, page 5-96)

Control Period (Heat)

Control Period (Cool)

Conditions of Use:

The control method must be configured for 2-PID

control. The cooling control and heating Control Outputs must be relay or
voltage (SSR) types. For the Control Period (cool) parameter the control mode
must be set to heating and cooling.

Function:

This parameter allows you to configure the output period (control

period) which is the minimum amount of time between ON cycles of the
heating and cooling outputs. Set the control period taking the control
characteristics and the electrical life expectancy of the output devices into
consideration (especially if a mechanical relay is used).

Table 5.BO

Selections

Meaning

Default

off

Simple program function turned OFF

off

stop

Go to STOP mode at end of program.

cont

Continue in RUN mode at end of program.

ptrn

cp

c-cp

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