Hardy Process Solutions HI 2160RC PLUS, Operation And Installation Manual

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HI 2160RC
PLUS
MANUAL
6-24
• The rate went above the “HI ALARM” level but did not
exceed 3 seconds.
• The alarm output was not activated.
• Condition C:
• The rate went above the HI SHUTOFF level for over three
(3) seconds which meets a shutdown condition effective at
point C
1
.
• The control output drops to 10% and into the manual
mode.
Auto Refill Sub-
Menu
About the Auto
Refill Sub-Menu
Auto refill is a function that energizes the Auto Refill Relay when a
user selectable LO (Start) weight condition occurs in the feeder. This
function assures that the feeder will not run out of material during the
dispensing process. When the relay is energized it can turn on an audio
or visual alarm indicating a refill condition exists and the operator
needs to replenish the feeder. The energized relay can also actuate a
solenoid which in turn can open a valve or start a driver to automati-
cally load more material into the feeder. The refill relay remains ener-
gized until the feeder receives enough material and meets the user
selectable HI (Stop) weight condition at which time the relay is de-
energized. (See Fig. 6-18)
CONTROL
ANALOG
OUTPUT
TO FEEDER
FEEDBACK
IN MILLIVOLTS
FROM SCALE
REFILL RELAY
OUTPUT TO
VESSEL SOLENOID
VALVE
Material Source
Vessel
Feeder
Scale
FIG. 6-18 AUTO REFILL OUTPUT RELAY