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48 UDC3200 Universal Digital Controller Operator Manual 04/08
3.10 Control Set Up Group
Function
Prompt
Lower Display
Selections or
Range of Setting
Upper Display
Parameter Definition
PV SOURCE
INPUT 1
INPUT 2
IN ALG1
PROCESS VARIABLE SOURCE —Selects the source of the
Process Variable.
INPUT 1
INPUT 2
INPUT ALGORITHM 1
PID SETS
NUMBER OF TUNING PARAMETER SETS—This selection lets
you choose one or two sets of tuning constants (gain, rate, and
reset). NOTE: The Tuning Group is automatically configured to
have two PID sets when a Duplex Control Algorithm is configured.
1 ONLY
ONE SET ONLY—Only one set of tuning parameters is available.
Configure the values for: Gain (proportional band), Rate, Reset
Time, and Cycle Time (if time proportional is used).
2KEYBD
TWO SETS KEYBOARD SELECTABLE—Two sets of tuning
parameters can be configured and can be selected at the operator
interface or by using the Digital Inputs.
Press this key until you see PID SET1 or PID SET2 then press
or to switch between sets. Configure the values for: Gain,
Rate, Reset, Cycle Time, Gain #2, Rate #2, Reset #2, Cycle #2
Time
PID SETS
(continued)
2PV SW
TWO SETS PV AUTOMATIC SWITCHOVER—When the process
variable is GREATER than the value set at prompt SW VALUE
(Switchover Value), the controller will use Gain, Rate, Reset, and
Cycle Time. The active PID SET can be read in the lower display.
When the process variable is LESS than the value set at prompt
SW VALUE, the controller will use Gain#2, Rate#2, Reset#2, and
Cycle#2 Time. The active PID SET can be read in the lower
display.
2SP SW
TWO SETS SP AUTOMATIC SWITCHOVER—When the setpoint
is GREATER than the value set at prompt SW VALUE (Switchover
Value), the controller will use Gain, Rate, Reset, and Cycle. When
the setpoint is LESS than the value set at prompt SW VALUE, the
controller will use Gain #2, Rate #2, Reset #2, and Cycle #2.
ATTENTION Other prompts affected: SW VALUE
SW VALUE
Value in
engineering units
within PV or SP
range limits
AUTOMATIC SWITCHOVER VALUE—This is the value of
Process Variable or Setpoint at which the controller will switch from
Tuning Constant Set #2 to Set #1.
LSP’S
LOCAL SETPOINT SOURCE—This selection determines what
your local setpoint source will be.
1 ONLY
LOCAL SETPOINT—The setpoint entered from the keyboard.
TWO
TWO LOCAL SETPOINTS—This selection lets you switch
between two local setpoints using the
SP
Select
SP
Select
SP
Select
key.
THREE
THREE LOCAL SETPOINTS—This selection lets you switch
between three local setpoints using the
SP
Select
SP
Select
SP
Select
key
Lower
Display
Lower
Display
Lower
Display