Alcorn Mcbride V+ series, User Manual

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V16+ Hardware Reference 8-13
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Connecting an output to an inductive load
1. Using a DB37 Male connector, connect the appropriate Output pin (pin 1
for Output1, pin 2 for Output2, etc.) on the Parallel Outputs connector to the
positive terminal of the external power supply.
2. Using the same DB37 Male connector, connect the corresponding Output
Return pin (pin 20 for Output1, Pin 21 for Output2, etc.) to the positive
terminal of the device that is receiving the output signal.
3. Connect the negative terminal of the device that is receiving the output
signal to the negative terminal of the external power supply.
4. Connect an appropriate 1N4000-series (1N4001-1N4007) diode across the
load.
Figure 7 – A relay coil or solenoid is a common example of an inductive load and must
have a 1N4000-Series snubber diode placed across it. Be sure to observe proper polarity
(anode to negative side).