YOKOGAWA UT55A - 8.4 Switching PID Parameters

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IM 05P01C31-01EN
Control Functions
8.4 SwitchingPID
8.4.1 SwitchingPIDAccordingtoTargetSetpointNumber(SPNO)
Description
The SP group number selection selects a group of target setpoint (SP) and PID
parameters by switching the SP number (SPNO).
The PID number selection (PIDN) can be set for each SP group.
SPnumber(SPNO) SP PIDparametergroup
1 SP of group 1 Specify using the parameter PIDN of group 1
2 SP of group 2 Specify using the parameter PIDN of group 2
3 SP of group 3 Specify using the parameter PIDN of group 3
4 SP of group 4 Specify using the parameter PIDN of group 4
5 SP of group 5 Specify using the parameter PIDN of group 5
6 SP of group 6 Specify using the parameter PIDN of group 6
7 SP of group 7 Specify using the parameter PIDN of group 7
8 SP of group 8 Specify using the parameter PIDN of group 8
WhenZON=0(SPgroupnumberselection1):Incoordinatedoperation,slavesoperate
with the same PID number as that of the master.
The setpoint in the PID number selection (PIDN) within the SP group is ignored.
When
ZON=3(SP
groupnumberselection2):Incoordinatedoperation,slavesoperate
with the setpoint in the PID number selection (PIDN) within the SP group.
Setting Details
Parameter
symbol
Name
Display
level
Setting range Menusymbol
ZON
ZonePID
selection
STD
0: SP group number selection 1
1:ZonePIDselection(selection
byPV)
2:Zone
PIDselection(selection
by target SP)
3: SP group number selection 2
4:ZonePIDselection(selection
by SP)
CTL
PIDN
PID number
selection
EASY
1 to 8 (Depends on the setup
parameter PIDG. setting.)
SP
PID
PID number
(display only)
EASY 1 to 8 MODE
PIDG.
Number of PID
groups
STD 1 to 8 CTL
Note1: The initial values for PIDN of the eight groups are same as SP number selection (SPNO.).
Set a PID number to use as necessary.
Note2: In Cascade control, the LP2 lamp is lit while the Loop-2 parameter is displayed.
Note3: A currently-used PID number is displayed for the parameter PID.
Note
When changing the setpoint of the parameter PIDG., if the setpoint of the parameter PIDN
which belongs to the SP menu is larger than that of the parameter PIDG., the PIDN setpoint is
changed to the PIDG. setpoint.
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