Fisher DPR900 - Start-Up, Fault, and Power Failure Configuration

Confiouration 5-4 1
Start-Up and Fatal Fault Values
Select an output signal value for the controller to use at startup and
/or configure the controller to hold the current output signal level, or
go to a preset signal level in case of a fatal fault during continuous
self-testing.
Use FCODE 20 to set the initial output signal start-up value for A01 in
the range O-100 percent. The value must be within the output signal
limits if any are configured.
Function Parameters FCODE Range
Unit Increment Default Selected
V.he ValUe
StXf output
Signal 20 o-1 00 % 1% 0
Value
(A01 )
Use FCODE 113 to select the start value option the controller uses
when it detects a fatal controller error.
Function
FCODE Option
NO Default Selected
Value WW
COlltlOllf3 113 Freeze output, at current level 1 1
Fault set OutDut level to preset value 2
Use FCODE 21 to set the preset failure output signal level for A01 in
the range O-100 percent to be used in the event of a fatal controller
error as selected with FCODE 113, Option 2.
Function Parameters FCODE Range
Unit Increment Default Selected
Value Value
Controller Output signal (AOl) 21
o-100 % 1 % 0
Fault
These functions are not applicable for positioning
motor (raise/lower) outputs.
5.9
Computer Control
The following covers controller communications with a supervisory
system and external control of either the setpoint or the output signal.
FCODE 117 determines the data communications configuration of the
controller.
May 1991
UM6.l:DPR900:9102