Alcorn Mcbride V+ series, User Manual

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V2+ Hardware Reference 10-7
V
2+
Input Wiring

Connecting a Voltage Input
1. Open the V2+ and verify that the correct Resistor Pack is installed in RP5
(see table 8)
2. Connect the appropriate wire from the Voltage Input signal pin (pin 1 for
Input9, pin 2 for Input10, etc.) to the positive terminal of the 24 VDC
external power supply.
3. Connect the negative terminal of the external power supply to one of the
terminals of the contact closure.
4. Connect the appropriate Voltage Input Return pin on the Parallel I/O
connector to the other terminal of the contact closure (pin 20 for Input9, Pin
21 for Input10, etc.)
Voltage Level Used Resistor Pack Value
5V 180 Ohm
12V 470 Ohm
24V 1.5K Ohm*
Table 8 – Recommended Resistor Pack values for Voltage Inputs.
* Factory Default Setting
Figure 3 – Sample connection for a Voltage Input to Input9 of the Parallel I/O connector.
The terminal blocks are used for power bussing and modularization of the input signals.