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7/50D Plus or 7/50D Controller Chapter 6: Configurable Settings 74
Name Description Options Default
Conveying Options
Assigned to pump n Number (address) of the pump to which this
station’s vacuum line is connected.
No more than 20 stations can be assigned to
one pump.
0–7 (0 = not
assigned)
0
Volume fill When this option is enabled, the station’s
vacuum valve closes when material covers the
station’s proximity sensor or the convey time
elapses, whichever comes first. When disabled,
the station’s vacuum valve remains open until
the convey time has elapsed.
Enable this option for volume-fill stations and
disable it for time-fill stations.
disabled,
enabled
disabled
Special convey When this option is enabled, the station’s
vacuum valve remains open for the convey
time, even if the station is not demanding
material and is indicating that it is full. When
disabled, the station’s vacuum valve opens
when there is demand from the station, and it
remains open until the convey time has elapsed
or material trips the volume-fill proximity switch.
Enable this option if and only if the station has
no flapper.
disabled,
enabled
disabled
Alarm Options
No convey When this option is enabled, the controller
issues a “no convey” alarm if it has repeatedly
attempted to convey material to the station but
the flapper never opened during the dump
delay. (The number of attempts is controlled by
the next setting.)
Usually this option should be enabled. At times,
you may wish to disable it during operation as a
stopgap measure for dealing with an alarm.
disabled,
enabled
disabled
# attempts B4 alarm Number of attempts before alarm: the number of
times the controller will attempt to convey
material to a station before it issues a “no
convey” alarm.
The setting for this option depends on (a) how
much material your injection mold uses to make
each part compared with the capacity of the
receiver and (b) how important it is to keep your
injection mold from running out of material and
shutting down. A higher setting will give you
fewer alarms, at the risk of emptying the
receiver without warning. A lower setting will
give more frequent alarms, at the risk of
disrupting operations unnecessarily.
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