5-52 configuration
[FISHER]
n
Ensure the reference signal is at the required level.
n
Use FCODE 137 to select the required controller dynamic
response.
n
Start tuning.
Changes to the dynamics can also be done via FCODE 137, if the
current level was used for the most recent tuning.
5.12 Manual PID Parameter Setting
The controller is delivered in a de-tuned state. No
attempt should be made to use the controller
without first installing the process parameters.
If the user does not have the autotuner derive the process
parameters, they must be inserted manually. For normal operation
enter three parameters using FCODE 36 thru 38. Enter three sets of
parameters using FCODE 36 thru 44 when configuring the controller
to use gain scheduling. Each PID parameter set has three parts:
Use FCODE 36, 39 and 42 to set a gain factor in the range
0.01-99.99.
Function Parameters FCODE Range Unit Increment Default Selected
Value
WI%
PID 1 Gain 36 0.01-99.99 - 0.01 0.01
PID 2 Gain
39 0.01-99.99 -
0.01 0.01
PID 3 Gain 42 0.01-99.99 -
0.01 0.01
Use FCODE 37, 40 and 43 to set the integration time, in the range
0.1 to 9999 seconds per repeat or disable by setting to OFF.
Use FCODE 38, 41 and 44 to set the derivative time, in the range 0 to
9999 seconds per repeat. The resolution is 0.1 s for intervals of O-l 0
seconds and Is for intervals between IO and 999 seconds.
UM61:DPR900:9102 May 1991
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