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7/50D Plus or 7/50D Controller Chapter 6: Configurable Settings 76
Name Description Options Default
On time Number of seconds that the each air pulse lasts
during filter cleaning.
If blow-back is not working as desired, the
service department may ask you to change this
setting.
0.1–99.0 sec. 1.0 sec.
Off time Number of seconds between air pulses during
filter cleaning.
If blow-back is not working as desired, the
service department may ask you to change this
setting.
0.5–99.0 sec. 1.0 sec.
Slide Gate Options (Only available on 7/50D Plus systems)
Slide gate When this option is enabled, the controller
opens the slide gate between the station and
the receiver during the dump delay and during
blow-back.
Enable this option if and only if the station has a
slide gate instead of a flapper and demand
switch.
disabled,
enabled
disabled
Purge Options
Purge When enabled, this option allows the system to
empty the material line completely after every
convey to this station. The station’s pump
continues to draw without picking up material for
an extra period of time after conveying is
finished.
Enable this option if and only if you are using a
purge valve for this station. This option cannot
be used with a volume-fill station.
disabled,
enabled
disabled
Purge duration Number of seconds allowed for purging. The
station’s vacuum valve remains open for the
convey time plus this time.
Adjust this setting to the amount of time
required for material to travel from the pickup
point (purge valve) to the station.
Ø–999 sec. 20 sec.
Purge valve Number (address) for the purge valve used with
this station.
Set this to match the number (address) for the
purge valve that services this station. If another
station has the purge valve that services this
station, enter the number of that station (range:
1–50). If a central purge valve services this
station, enter the number (address) of that valve
(range: 51–154).
1–154 0 (= not
assigned)
Material Proofing Options
Material proofing When this option is enabled, the controller
issues an alarm for the station if the number for
“Material set to” does not match the number for
the actual material. These numbers refer to
material lines.
Enable this option if and only if your facility has
installed the option of material proofing and you
want to check the material line connected to this
station.
disabled,
enabled
disabled