Using Two Sets Of Tuning Constants; Table 5-16 Procedure For Selecting Two Sets Of Tuning Constants - Honeywell UDC 3300 Product Manual

5.10 Using Two Sets of Tuning Constants

Introduction
Select two sets or gain
scheduling
168
You can use two sets of tuning constants for single output types and
2-loop or cascade control, and choose the way they are to be switched.
(Does not apply for Duplex control.)
The sets can be:
• keyboard selected,
• automatically switched when a predetermined process variable value
is reached,
• automatically switched when a predetermined setpoint value is
reached.
The following procedures show you how to:
• select two sets or gain scheduling,
• set the switch-over value,
• set tuning constant value for each set, and
• switch between two sets via the keyboard (without automatic
switchover)
The procedure in Table 5-16 tells you how to select two sets or gain
scheduling.
Table 5-16 Procedure for Selecting Two Sets of Tuning Constants
Step Operation
1
Select Control
Set Up group
2 Select
PID SETS
function
UDC 3300 Controller Product Manual
Press
until you see:
SET UP
Upper Display
SET UP
Lower Display
CONTROL
for Loop 1 or
until you see:
FUNCTION
Upper Display
LOOP 1/2
Lower Display
PID SETS
1 ONLY—1 set of constants
2KEYBD—2 sets, keyboard selectable
2 PVSW—2 sets, auto switch at PV value
2 SPSW—2 sets, auto switch at SP value
GAIN S—Gain used in control algorithm
calculations can be pre-entered into eight
user-defined segments, with each segment
applied over a user-defined PV range. Refer
to Section 3 – Configuration under Tuning
Set Up group to set Gain segment values
and PV range values.
to select the type of PID SET.
or
Action
Upper Display
SET UP
Lower Display
CONTROL2
for Loop 2
Available selections
are listed below
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