6.18.8 Blocking time coarse signal (s) [blockingTimeCoarse]
This parameter defines a timer that starts when the coarse signal is switched. While the timer
is active, the electronic weighing system 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.
6.18.9 Blocking time fine signal (s) [blockingTimeFine]
This parameter defines a timer that starts when the coarse signal is shut off. While the timer is
active, the electronic weighing system does not perform a check to determine whether the fine
shut-off point has been reached.
When the coarse signal is shut off, this may produce an overshoot that can be higher than the
fine shut-off point, which would cause the fine signal to be shut off too early. To prevent this
premature shut-off, the "Blocking time fine signal" can be defined.
6.18.10 Blocking time discharging (s) [blockingTimeDischarge]
Defines a timer that starts when the discharge signal is shut off. As long as the timer is active,
the electronic weighing system does not perform a check to determine whether the dosing
signals have been shut off. When the discharge signal is shut off, this can result in an overshoot
that is higher than the coarse or fine shut-off point, for example. To prevent this premature shut-
off, the "Blocking time discharging" can be defined in seconds.
6.18.11 External triggered blocking time (s) [externalBlockingTime]
Defines a timer that can be started by the user with command 1151. While the timer is active,
the weight value is completely ignored by the electronic weighing system. In this way,
significant foreseeable errors can be simply hidden. Using command 1152, the timer can also
be stopped early before the specified time has elapsed. The "Blocking time active" status bit in
the scale status shows whether a blocking time is currently active or not.
6.18.12 Shut-off correction weight [shutOffCorrectionWeight]
This parameter enables influences that occur during dosing (e.g. overpressure or
underpressure) to be taken into account in determining when the set point weight is reached.
The setting conforms to the "Parameter relation" setting and can thus be an absolute weight or
a percentage of the set point. The shut-off correction weight currently in effect is always output
in DR30 Read out process state (Page 103) in the weight unit.
Parameter assignment/addressing
6.18 DR23 Material parameters
Technology module TM SIWAREX WP351 HF
94 Operating Instructions, 01/2020, A5E47521010-AA
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