Azbil SDC35 - Page 82

5-22
Chapter 5. DETAILED DESCRIPTION OF EACH FUNCTION
Item (Bank) Display Contents Initial value User level
Cool-side proportional
band (PID 8)
Same as PID 1
5.0% Basic,
Standard,
High function
Cool-side integration time
(PID 8)
120s
Cool-side derivative time
(PID 8)
30s
Cool-side MV low limit
(PID 8)
Same as PID 1
0.0% Standard,
High function
Cool-side MV high limit
(PID 8)
100.0%
• When the control method is other than the ON/OFF control (
CtrL
≠ 0), the
display and setting can be configured.
• [... for cool side] related items can be displayed and set when [
C26
: Heat/Cool
control] is set to [1: Enabled].
• When the Integration time (
I

-
-
) is set at “0s” or Cool-side integration time
(
I

-
-
C
) is set at “0s” in the Heat/Cool control, no integration control action is
performed. The Manual reset (
rE-
-
) can be used in both the heat and cool
controls.
• Parameter settings for the cool control are displayed only when the Heat/Cool
control is set enabled.
• When the Integral time for heat side or cool side is "0s", the operation is
processed with both Integral time for heat side and cool side set at "0s".
• If the setting is made so that the output low limit is greater than the output high
limit, the operation is performed with the low limit swapped for the high limit
automatically.
• Priorities for PID group change
Priorities for PID group change are shown below.
DI function
When PID group
change is
selected.
Zone function
During use
Priority
High
Low
During RSP
[SP group linked]
[RSP dedicated
group selectable]
SP group
assignment of
PID group
> > >
Handling Precautions
• If PID group change is used for an internal contact (DI), zone PID does
not function. When zone PID is used, do not use PID group change by
selecting PID group selection as the function of an internal contact (DI).