535-PROF User's Manual
Chapter 6
75
Tuning
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20. PID TRIP
For
NO. OF PID > 1
, defines the variable used to select the various PID sets.
Not applicable for SP NUMBER, REC. NUMBER or SEG. SELECT.
•
PV VALUE
PID set selection based on process variable
D
SP VALUE
PID set selection based on setpoint
•
DEV. VALUE
PID set selection based on deviation from
setpoint
21. TRIP:1
Defines the value that triggers a change to the primary set (#1) of PID values.
R
The process variable range
D
Dependent on the process variable range
For each set of PID 2 through 8
(or equals SP NUMBER, REC.NUMBER
or SEG.SELECT) set up the following group of parameters (X represents the
PID set number), as they appear for each set of PID. The controller desig-
nates the values for the active PID parameter in the third display with this
symbol—
*
—on either side.
22. PROP. BND.:X
Defines the proportional band for PID set X.
R
0.1 to 999.0%
D
50.0%
23. RESET:X
Defines the integral time for PID set X.
R
1 to 9999 seconds (increments of 1)
D
20 seconds
24. RATE:X
Defines the derivative time for PID set X.
R
0 to 600 seconds
D
1 seconds
25. MAN. RST.:X (or LOADLINE:X)
Defines the manual reset (or load line) for PID set X.
R
0 to 100%
D
0%
26. TRIP:X
This defines the value that triggers a change to the Xth set of PID values.
R
The process variable range
D
Dependent on the process variable range
PID TRIP
SP VALUE
TRIP:1
(D)
PROP.BND.:X
(D)
MAN.RST.:X
0
TRIP:X
(D)
RATE:X
1
RESET:X
(D)