Table 122 Tpsc Tuning Tab Configuration Parameters - Honeywell HC900 Reference Manual

Function Blocks
TPSC (3POS) Function Block
Properties Group
Tuning Constants Prop Band
or
Gain
Reset
Minutes
or
Repeats per
Minute
Rate
Minutes
418

Table 122 TPSC Tuning tab configuration parameters

Parameter Index #
0
PB1 or
Gain1
37
PB2 or
Gain2
2
Reset1
or
39
Reset2
1
Rate1
or
38
Rate2
HC900 Hybrid Control Designer Function Block Reference Guide
Parameter Description
Proportional Band (PB) - is the
percentage of the range of the
measured variable for which a
proportional controller will produce
a 100 % change in its output.
Gain - is the ratio of output change
(%) over the measured variable
change (%) that caused it.
100 %
G =
PB %
where PB is the Proportional Band
(in %)
RESET (Integral Time) - adjusts the
controller's output according to both
the size of the deviation (SP-PV)
and the time it lasts. The amount of
corrective action depends on the
value of Gain.
The reset adjustment is measured
as how many times proportional
action is repeated per minute
( Repeats/minute ) or how many
minutes before one repeat of the
proportional action occurs
( Minutes/repeat ).
RATE action, in minutes affects the
controller's output whenever the
deviation is changing; and affects it
more when the deviation is
changing faster.
Value or Selection
0.1 to 1000
0.1 % to 1000 %
ATTENTION: Enter
values for tuning set
1 and tuning set 2 in
specified fields.
0.02 to 50.00
0 or 0.1 to 10.00
minutes
0 = OFF
Revision 11
2/07