6.18.3 Trailing weight fine [trailingWeightFine]
This parameter defines how much material still flows onto the scale after the fine signal is shut
off. Depending on the selected unit reference (DR23), the value must be interpreted as a
percentage of the set point (DR20) or as an absolute weight value.
Example
Set point (DR20) = 100 kg
Selection code for parameter relation (DR 23) = 0
Fine weight (DR 23) = 5
Trailing weight (DR 23) = 2
→ With this setting, it is assumed during dosing that 2 kg (2% of 100 kg) still flows onto the scale
after the fine signal is shut off.
In the example, this means specifically that the coarse and final signal are switched at the start
of the dosing. When 93 kg is reached, the coarse signal is shut off; when 98 kg is reached, the
fine signal is shut off. The following graphic explains the relationship.
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Figure 6-9 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
Parameter assignment/addressing
6.18 DR23 Material parameters
Technology module TM SIWAREX WP351 HF
92 Operating Instructions, 01/2020, A5E47521010-AA
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