Scale parameters and functions
8.22 DR 23 Material parameters
SIWAREX WP251
120 Manual, 12/2015, A5E37203357A
Image 8-6 Trailing weight
The shut-off points for the fine and coarse signals are corrected or optimized automatically
during operation when the controller is activated (DR 24). The fine and trailing weights
currently used by WP251 can be seen in DR 31 (always expressed in DR 31 in the weight
unit).
Blocking time coarse signal
This parameter defines a timer that starts when the coarse signal is switched. As long as the
timer is active, WP251 does not perform a check to determine whether the coarse shut-off
point has been reached.
At the start of dosing, the "coarse" and "fine" dosing signals are usually set simultaneously.
The material may strike the scale hard, producing an overshoot that is higher than the
coarse shut-off point, which would cause the coarse signal to be shut off too early. To
prevent this premature shut-off, the "Blocking time coarse signal" can be defined in
milliseconds (ms).
Blocking time fine signal
This parameter defines a timer that starts when the coarse signal is shut off. As long as the
timer is active, WP251 does not perform a check to determine whether the fine shut-off point
has been reached.
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