6.19.7 Proportional controller deadband - lower limit [deadBandPControllerMinus]
When proportional controller is activated, a deadband for the controller can be defined. If the
achieved final weight of a dosing (with check) is above the lower limit of the deadband, the
controller does not correct the shut-off points. If both limits are at zero, the controller corrects
after each checked dosing.
6.19.8 Controller behavior in case of exceeding max. control access
[controllerErrorBehavior]
This parameter defines the controller behavior when the maximum corrective action (DR 24) is
exceeded in a cycle. The following options are available:
Selection
code
Meaning
0 Control is discontinued for this cycle.
1 (default) The controller controls with the maximum corrective action (DR 24).
6.19.9 Intervention of fine time controller [interventionTController]
This parameter defines the controller behavior in continuous operation.
Selection code Meaning
0 (default) Control only in checked weighing cycles
1 Controller works in any weighing cycle
6.19.10 Set point fine time controller (s) [setPointTController]
If the fine time controller was activated (see type of controller), the desired duration of the fine
signal can be set.
The fine time controller optimizes the duration of the fine signal by adjusting the fine weight and
thus the coarse flow shut-off point. The shut-off point is adjusted so that the actual duration of
the fine signal corresponds to the default value in settled state. The control deviation is
determined after fine dosing:
t
Diff
= t
Set
- t
Act
t
Diff
Control deviation (s)
t
Set
Fine set time (s) (= default)
t
actual
Fine actual time (s)
The setpoint for the fine time is specified by the user.
Parameter assignment/addressing
6.19 DR24 Controller parameters
Technology module TM SIWAREX WP351 HF
Operating Instructions, 01/2020, A5E47521010-AA 97
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