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Scale parameters and functions
8.3 DR 3 calibration parameters
8.3.14
Standstill waiting time
Standstill waiting time is a maximum waiting time for standstill on execution of a command
which depends on standstill (taring, zeroing). A technology message is generated if the
command cannot be executed during the standstill waiting time because there is no
standstill.
If the standstill waiting time is equal to zero, a command requiring standstill is rejected
immediately if there is no standstill.
8.3.15
Low-pass filter limit frequency
There is a critically damped low-pass filter for suppressing faults. The diagram below shows
the step response of the filter (f
limit frequency of between 0.01 and 20.0 Hz can be specified.
Figure 8-2
The definition of the limit frequency is extremely important for the suppression of faults.
Defining the limit frequency defines the "speed" of the scale's response to changes in the
measured value.
A value of 5 Hz, for example, results in a relatively rapid response to a change in weight; a
value of 0.5 Hz makes the scale "slower".
8.3.16
Low-pass filter number
The number of the filter defines the effect of damping. The values 2 and 4 can be set. The
higher the selected filter number, the higher the effect.
52
= 2 Hz). The entry "0" means that the filter is switched off. A
g
Step response of the digital low-pass filter when f
= 2 Hz
g
SIWAREX WP321
Manual, 07/2014, A5E33715669A-02
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