Fisher DPR900 - Tracking Signal Selector (Option 4)

5-388 Configuration
(FISHER]
5.8.5.2
Tracking Signal Selector (Option 4)
Option 4 should be selected when twp DPRSOO controllers are used
and the high (or low) analog output signal between the controllers is
selected for use with the final control device by the second DPR
controller.
Option 4 is used only in the controller supplying its output signal to
another DPR controller and used with the second controllers Mm/Max
signal selection (FCODE 115, Option 5 or 6). Option 4 allows for
automatic integral output tracking between the two controllers,
utilizing the analog input signal connected at Al4. This signal must be
the output signal selected for transmission to the final control device.
Function FCODE Option
No Default Selected
Value Value
output 115 Disabled 0 0
Signal Feedforward enabled, Al3
1
Processing Feedforward enabled, Al4 2
Tracking, Output DI (Al4) 3
Tracking. Signal Selector (Al4) 4
Min selection enabled
5
Max selection enabled 6
This output tracking function cannot be used with positioning motor
(raise/lower) outputs.
Function FCODE
Option NO Default
Selected
Value ValW
EXtlXflal 110
Disabled
0
0
A/M Track AuWManualTTrackswitchingvia Dll 1
Switching
AutoIManual~rack switching via Dl2 2
5.8.6 Output Min/Max Signal Selector (AOl)
The output min/max function lets the output signal be controller by
either Al4 or the controller-calculated AU (delta U) value. AU is
calculated as A01 + AU. AU is the contribution from the controller
during regulation (max + 10%).
The minlmax selection is only active in the auto mode. Additionally,
the function cannot be used in conjunction with positioning motor
(raise/lower) pulse outputs.
UM6.1:DPR900:9102
Change 1 -September 1991