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Fisher DPR900 - Input Signal Assignment and Configuration

Fisher DPR900
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5-Z
Configuration
(FISHER’J
When the controller configuration is fully planned, enter the
configuration options and the tuning parameters. Press the PROG
button to access the configuration mode. The controller is designed to
prompt the user for easy configuration entry. Use the TUNE, and
green increase/decrease buttons, to call the appropriate FCODE’s,
select and enter the functions, and set the tuning parameters.
5.4
Set the measuring range and fix the position of the
decimal point in the digital display, using FCODE
24, 25 and 26 before changing any parameter.
Many parameters use the measuring range limits
as a reference. If the measuring range is altered,
the limits and alarms that refer to the measuring
range adjust automatically. This eliminates the
need for further adjustments.
Function Parameters
Measuring Minimum value
Range Maximum value
Decimal point
FCODE Range Unit Increment Default Selected
VZIllIe VL?lllIfZ
24
r 9999
a”Y
1 digit Min
25 + 9999
a”Y
1 digit Max
26 l-4 - 1 1
Input Signal Assignment
Some input and output signals have definite functions; (e.g. All is
always the process value [PV] input). Other signals, such as Al3, Al4
and DII, D12 can have any one of the assignments shown. The user
assigns one of these options to the signal line, then chooses the valid
signal range and type of input that indicates the active discrete signal.
Signal Assignment Signal Assignment
All Process value
DII
For switching between:
Al2 Remote setpoint o Auto/Manual
A13 External analog signal for: o RSP value to ESP value
o Secondary process value 0 Computer to local control
monitoring sensor
o Forced output signal
0 3.state control o Output tracking
o Min/Max selection D12 For switching between:
o Arithmetic functions o Auto/Manual
o Feedforward signal 0 RSP value to internal
o Gain scheduling signal
alternate signal
Al4 External analog signal for: 0 computer to local control
o Showing control position
o Forced output signal
0 3-state control o Output tracking
0 Feedforward signal D13 Digital control of output signal
0 Gain scheduling signal DDCalternativelysetpoint SPC
0 Output tracking Dl4 Digital control of output signal
o MinIMax selector
tJM61:DPR900:9102 Change 1 -September 1991

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