Siemens Milltronics BW500, Operating Instructions Manual

Page: 180 / 220

Parameters
12.9 Totalization (P619 - P648)
BW500 and BW500/L
178
Operating Instructions, 12/2016, A5E33482052-AD
12.8.6 P569 Manual Batch Pre-Act Amount
Enter a value to make the setpoint relay change state at a known value lower than the setpoint
(P564). This allows the feeding system to empty with each batch. The value of the manual pre-
Act entry is generally reflective of the material that is left in the feeding system.
Example:
Setpoint = 1000
Manual Pre-Act = 50
The setpoint relay will activate when the batch totalizer reaches 950.
12.8.7 P598 Span Adjust Percentage
Accessible only through manual span adjust (P019), when percent change (1) is selected. Refer
to
% Change
.
12.9 Totalization (P619 - P648)
The following parameters are specific to the use of the BW500 and BW500/L totalizers. See
“Totalization (Page 103)”.
12.9.1 P619 Totaling Dropout
Sets the limit, in percent of design load, below which material rates are not totalized (
f
= 3.0).
The value of 0 is reserved to allow both negative and positive totalization. Enter drop out value in
% of design load, range is 0 to 25 %.
12.9.2 P620 Display Zero Dropout
Activates the limit as defined in P619 ’Totalling Dropout’, below which, the rate and/or load are
set to 0.0.
-01 = Rate
-02 = Load