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11. I/O CONFIGURATION AND END OF CYCLE FEEDBACK
During a dispense cycle, an open collector circuit closes and remains closed while
the valve is
other devices. Power from an external source is allowed to pass through the circuit
to operate a 5 to 24 VDC load. Power consumption must not exceed 250 mA. The
load could be a relay, solenoid, counter, LED, or any device that will operate within
a 5 to 24 VDC range and a maximum of 250 mA.
Note: During the dispense cycle, pin 3 will be grounded. Please make sure the
external device (your machine that controls the dispenser/controller) has the same
ground as the controller.
Pin 1 (+)
Pin 2 (-)
Pin 3
Pin 4
Pin 5
Pin 6
Pin 5
Pin 7, 8, and 9 = Available
dispensing.
Pin 3 and 4 can be as feedback signal to synchronize with
To initiate a dispense cycle with voltage
End of Cycle Feedback
During dispensing cycle, Pin 3 is grounded (-)
End of dispensing cycle,
Pin 3 is not connected (opened)
When low pressure alarm is triggered, Pin 4 is grounded (-)
When low pressure alarm is turned off,
Pin 4 is not connected (opened)
To initiate a dispense cycle with
contact closure
Chassis Ground
29
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