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8.23.2
Parameter relation
This parameter defines the unit in which the "Maximum corrective action" and "Controller
deadband - upper/lower limit" parameters (DR 24) must be interpreted. The following options
are available:
Function
code
0 (default)
1
8.23.3
Type of controller
A proportional controller is available for optimization of the shut-off points.
Function
code
0
1 (default)
Note
Stop weighing cycle
If a weighing cycle has been stopped by a Stop command in the meantime, there is no
corrective action by the controller for this dosing! The controller becomes active only for
completed and checked cycles.
8.23.4
Control factor of proportional controller
When proportional controller is activated, its control factor can be defined. The parameter is
specified as a percent.
8.23.5
Maximum corrective action
When proportional controller is activated, the maximum possible correction of the shut-off
points by the controller can be defined. Depending on the "Parameter relation" setting (DR
24), the value must be specified and interpreted as a percentage of the set point (DR 20) or
as an absolute weight value.
SIWAREX WP251
Manual, 12/2015, A5E37203357A
Meaning
"Maximum corrective action" and "Controller deadband - upper/lower limit" are inter-
preted as a percentage of the set point (DS 20).
"Maximum corrective action" and "Controller deadband - upper/lower limit" are inter-
preted in the weight unit.
Meaning
No controller
Proportional controller is activated
Scale parameters and functions
8.23 DR 24 Controller and filter parameters
123
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