Alcorn Mcbride V+ series, User Manual

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V2+ Hardware Reference 10-9
V
2+
Digital Outputs
Output Connector
In addition to discrete inputs, the V2+ provides 8 transistor outputs (lamp
drivers) for discrete control. These outputs are capable of sinking up to 500 mA
each when used individually. The amount of current that each output can sink
decreases when the number of outputs being used at the same time increases.
For example: if all of the outputs are used at the same time they can only sink
150mA each.
The connections for the Parallel I/O connector are as follows:
Pin Connection Pin Connection
1 Voltage Input 9 20 Voltage Input 9 Return
2 Voltage Input 10 21 Voltage Input 10 Return
3 Voltage Input 11 22 Voltage Input 11 Return
4 Voltage Input 12 23 Voltage Input 12 Return
5 Voltage Input 13 24 Voltage Input 13 Return
6 Voltage Input 14 25 Voltage Input 14 Return
7 Voltage Input 15 26 Voltage Input 15 Return
8 Voltage Input 16 27 Voltage Input 16 Return
9 Output 1 28 Contact Closure Input 9
10 Output 2
29 Contact Closure Input 10
11 Output 3 30 Contact Closure Input 11
12 Output 4 31 Contact Closure Input 12
13 Output 5
32 Contact Closure Input 13
14 Output 6 33 Contact Closure Input 14
15 Output 7 34 Contact Closure Input 15
16 Output 8
35 Contact Closure Input 16
17 Clamping Diodes 36 GND
18 N/C 37 GND
19 GND
Table 9 – Parallel I/O connector Outputs.
Note When the outputs are used to drive inductive loads (relay coils, etc.), pin
17 can be connected to the powered side of the load to provide additional
snubber diode protection.