3 batching switch – Rice Lake 520 HMI Digital Weight Indicator Installation Manual User Manual
Page 78

Setpoints
72
11.3
Batching Switch
The batching switch option, PN 19369, comes as a
complete unit in an FRP enclosure, with legend plate,
locking stop switch (mushroom button), and a
run/start/abort 3-way switch.
ABORT ST
ART
RUN
EMERGENCY
ST OP
IN-ST OP OUT
-RUN
Figure 11-6. Batching Switch
Both switches are wired into the indicator's digital I/O
terminal strip as shown in Figure 11-7. Each switch
uses a separate digital input.
Once cables and switches have been connected to the
indicator, use the setup switch to place the indicator in
setup mode. Use the DIGIN menu (see Section 3.2.8 on
page 38) to configure digital input functions. The
default values for DIGIN1 and DIGIN2 are BATSTRT
and BATRUN, respectively.
When configuration is complete, exit setup mode.
Initialize the batch by turning the 3-way switch to
ABORT
, then unlock the STOP button (the STOP button
must be in the OUT position to allow the batch process
to run). The batching switch is now ready to use.
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WARNING
If no digital input is assigned to BATRUN,
batching proceeds as if BATRUN were
always on: If DIGIN2 is not assigned to
BATRUN, the batch will start when the
3-way switch is turned to START, but the
STOP mushroom button will not function.
Figure 11-7. Batching Switch Wiring Diagram
To begin a batch process, turn the 3-way switch to
START
momentarily. If the STOP button is pushed
during the batch process, the process halts and the
button locks in the IN position.
The
START
switch is ignored while the STOP button is
locked in the IN position. The STOP button must be
turned counterclockwise to unlock it, then released into
the OUT position to enable the 3-way switch.
To restart an interrupted batch from the step where it
left off, do the following:
1. Unlock STOP button (OUT position)
2. Turn 3-way switch to
START
To restart an interrupted batch from the first batch step,
do the following:
1. Turn 3-way switch to
ABORT
2. Unlock STOP button (OUT position)
3. Turn 3-way switch to
START
Note
Use this procedure (or the BATRESET EDP command) to initialize the new batch routine following any change
to the setpoint configuration.