Vansco VMM3120, User Manual

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2 VMM3120
About the VMM3120
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10 analog inputs
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4 frequency inputs (2 AC, 2 DC)

2 power control inputs
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3 digital inputs (active-low inputs used for harness addressing)
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The VMM3120 has 20 outputs, rated at 2.5 A maximum current:

16 high-side outputs
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4 low-side outputs

The VMM3120 has two Ampseal connectors (2 x 35 pin, keyed) that are used
to interface with the inputs, outputs, and CAN

The VMM3120 has 3 LEDs that can be used to indicate the status of inputs,
outputs, power, and CAN

The VMM3120 can detect and log the following faults:

Short-circuit

Overcurrent

Open load

Short-to-battery

Short-to-ground
This manual describes the hardware components of the VMM3120, but does not
explain how to write or configure the software. For more information about
software, refer to the appropriate software manual or contact your Parker Vansco
Account Representative.
1.1. Diagram conventions
The following symbols are used in the schematic diagrams in this document: