Azbil C1M - PID Control, Ra-PID Control, Heating;Cooling Control

5-15
Chapter 5. Functions

PID control, Ra-PID control, heating/cooling control
Control method: PID control
(Parameter bank: CTRL = 1 must be set)
Heat/cool control
(Setup bank: C26)
Control action (direct/reverse) setting in the DI assignment bank
(DI assignment bank:
dI 1.1
to
dI5.1
)
Control action (direct/reverse)
(Setup bank:
C14
)
DI logical function
(DI assignment bank)
Heat/cool control is not used
Heat/cool control is used
No
AT will not be used AT will be used
Selected PID group
AT calculation
(Extended tuning bank:
AT.TY
,
AT.PT
,
AT.PV
)
MV high and low limits at AT
(Parameter bank:
AT.OL
,
AT.OH
)
Output at PV alarm
(Setup bank:
C16
)
AT running
AT stopped
Output at READY
(Setup bank:
C17
)
Manual MV
(Setup bank:
C19
,
C20
)
MV high and low limits for heating
(PID bank:
OL-1
-
8
,
OH-1
-
8
)
Output at READY for heating
(Setup bank:
C17
)
MV high and low limits for cooling
(PID bank:
OL-1C
-
8C
,
OH-1C
-
8C
)
Output at READY for cooling
(Setup bank:
C18
)
Heating/cooling output calculation
(Setup bank:
C26
,
C28
Extended tuning bank:
CLG
)
PID control operation
(Extended tuning bank:
CTR.A
,
Setup bank:
C21
,
C22
,
PID bank:
P-1
-
8
,
I-1
-
8
,
D-1
-
8
,
RE-1
-
8
P-1C
-
8C
,
I-1C
-
8C
,
D-1C
-
8C
)
MV high and low limits
(PID bank:
OL-1
-
8
,
OH-1
-
8
)
* When using heating/cooling control,
the low limit is 0 % and the high limit is 100 %.
MV (manipulated variable) Heating MV = MV ON/OFF status 1 Cooling MV = MV ON/OFF status 2
PV
Selected PID group
PV
SP (target value) SP (target value)
SP lag constant
(Extended tuning bank:
SP.LG
)
Yes
C15
= 1 and AL01/AL02 triggered
C15
= 0 or
C15
= 1 and AL01/AL02 not triggered
READY mode
READY mode
AUTO mode
Mode other than READY + AUTO
Mode other than READY + AUTO
READY + AUTO mode
READY + AUTO mode
MANUAL mode