Local Setpoint (Lsp); Extra Internal Setpoint (Esp) - Fisher DPR900 User Manual

5-24
Configuration
[FISHER"]
1 - Local internal setpoint (LSP)
2 - Extra internal setpoint (ESP)
3 - Remote setpoint (RSP)
4 - Computer-controlled setpoint (CSP)
5 - Externally controlled via digital signals (SPC)
The user configures the setpoint source the controller uses via
FCODE 142.
Function
FCODE
Option
NO Default
Selected
V&e V&K?
Automatic
142 Disabled 1
1
Setpoint Switches to remote setpoint 2
Switching
Switches to extra internal setpoint 3
When option 2 is configured and the R button is pressed, the
controller switches to the RSP value.
When option 3 is configured and the R button is pressed, the
controller switches to the ESP value.
When external remote or local switching capability is configured, an
external discrete signal connected to either DII or D12 can remotely
activate the switch. Remote switching is selected via FCODE 111.
Function FCODE Option No Default Selected
ValUe Value
External 111 Disabled 0 0
WL
Remote/Local switching via Dll
1
Switching Remote/Local switching via DIZ 2
When remote switching via discrete inputs is configured and the
signal line is inactive, the controller switches to LSP control. When the
discrete input returns to the opposite state, the controller reverts to
using the RSP value (assuming the R button is still lit).
5.7.1 Local Setpoint (LSP)
When no setpoint options are configured, the controller accepts a
local setpoint (LSP) value, entered with the green increase/decrease
buttons. Set the LSP value according to the instructions in Section 3,
Establishing a Setpoint.
A local tracking option is available for selection when using LSP
control. This option provides automatic setpoint tracking when the
controller has been placed in the manual mode via the manual button.
tJM61:DPR900:9102 May 1991