Appendix A — I/O Connector Pin Descriptions
Pin 1: VI+
Voltage I: This pin is the positive side of a Voltage Initiate signal.
Pin 2: VI–
Voltage Initiate–: This pin is the return of the Voltage Initiate signal.
The Voltage Initiate signal will trigger a dispense cycle when a 5 to 24 VDC signal appears across these pins. An
internal 1.2K resistor will limit the Voltage Initiate signal current to 20 mA or less. The signal can be momentary (no
less than 10ms) or maintained. A new dispense cycle will begin once the 5 to 24 VDC signal is removed and then
applied again.
Dispense Cycle Control with
Voltage Initiate
Pin 1: VI+
Common
Digital Output 0
Digital Output 1
Digital Output 2
Pin 2: VI-
1.2K
Ultimus V DIO
PC / PLC
Ultimus V DIO
Proximity Sensor
Pin 5: PS+
Pin 1: VI+
Pin 2: VI-
Pin 12: PS-
Common
1.2K
Vcc
Dispense Cycle Control with Voltage
Initiate and a NPN Proximity Sensor
Pin 3: EOCF+
End of Cycle F: This is the positive input signal for the End of Cycle Feedback solid state switch.
Ultimus V High Precision Fluid Dispenser
35
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