Sterling Plumbing 882.00254.00 Blow Back Options Only available on 7/50D Plus systems

Name	Description	Options	Default
Partial convey	When this option is enabled, the controller	disabled,	disabled
	issues a “partial convey” alarm if it has	enabled
	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.
Alarm Options
# attempts B4 alarm	Number of attempts before alarm: the number of	1–99	3
	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.
Local alarm	When this option is enabled, the controller turns	disabled,	disabled
	on the local alarm light for any alarm at this	enabled
	specific station.
	Enable this option if and only if your facility has
	installed a local alarm light for this station.
Miscellaneous Options
Receiver low level	When this option is enabled, the controller	disabled,	disabled
	issues a “receiver level” alarm if material in the	enabled
	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.
Blow Back Options (Only available on 7/50D Plus systems)
Blow back	When this option is enabled, the controller	disabled,	disabled
	periodically sends compressed air backward	enabled
	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.
Every n loads	Number of conveying cycles between filter	1–99	5
	cleanings.
	Adjust this setting based on experience. The
	more dust and debris in your material line, the
	smaller this number needs to be.
# pulses	Number of pulses of compressed air sent	1–99	5
	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.

7/50D Plus or 7/50D Controller Chapter 6: Configurable Settings 75