11. I/O Configuration And End Of Cycle Switch - TECHCON SYSTEMS TS250 User Manual

11 I/O Configuration and End of Cycle Switch
During a dispense cycle, an open collector circuit closes and remains closed while
the valve is dispensing.
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 TS250/255 controller.
Pin 1 (+)
Pin 2 (-)
Pin 3
Pin 4
Pin 5
Pin 6
Pin 5
Pin 7, 8, and 9 = Available
Sales and Service
Bergdahl Associates, Inc.
2990 Sutro Street
Reno, Nevada 89512-1616
phone: +1 775 323-7542
www.bergdahl.com
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
Chasis Ground
8