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7/50D Plus or 7/50D Controller Chapter 6: Configurable Settings 75
Name Description Options Default
Partial convey When this option is enabled, the controller
issues a “partial convey” alarm if it has
repeatedly attempted to convey material to the
station, and material has moved from the station
into the receiver, but the volume-fill proximity
sensor has never signaled that the station is full.
(The number of attempts is controlled by the
next setting.)
For a volume-fill station, this option should
usually be enabled. At times, you may wish to
disable it during operation as a stopgap
measure for dealing with an alarm. For a time-fill
station, disable this option.
disabled,
enabled
disabled
Alarm Options
# 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 “partial
convey” alarm.
The setting for this option depends on the same
considerations as those given above for number
of attempts before a “no convey” alarm.
1–99 3
Local alarm When this option is enabled, the controller turns
on the local alarm light for any alarm at this
specific station.
Enable this option if and only if your facility has
installed a local alarm light for this station.
disabled,
enabled
disabled
Miscellaneous Options
Receiver low level When this option is enabled, the controller
issues a “receiver level” alarm if material in the
receiver drains below the level of the receiver’s
low-level sensor.
Enable this option if and only if your facility has
installed a low-level sensor for this station’s
receiver. At times, you may wish to disable it
during operation as a stopgap measure for
dealing with an alarm.
disabled,
enabled
disabled
Blow Back Options (Only available on 7/50D Plus systems)
Blow back When this option is enabled, the controller
periodically sends compressed air backward
through the station’s air filter to dislodge
accumulated dust and debris.
Enable this option if and only if the station has
the equipment for compressed-air filter cleaning.
disabled,
enabled
disabled
Every n loads Number of conveying cycles between filter
cleanings.
Adjust this setting based on experience. The
more dust and debris in your material line, the
smaller this number needs to be.
1–99 5
# pulses Number of pulses of compressed air sent
through the station’s filter during cleaning.
If blow-back is not working as desired, the
service department may ask you to change this
setting.
1–99 5