Digital Input Setup; Multi-Purpose Digital Inputs; Testing Digital Inputs - Idex Pulsafeeder MPC Vector Installation, Operation & Maintenance Manual

7.2 Digital Input Setup

7.2.1 Multi-purpose Digital Inputs

Each of the 2 Digital INPUTS can be selected as:
Each can be set as normally OPEN or normally CLOSED. For example, if an input is set to ON/OFF and
NORMALLY CLOSED, this means a CLOSED dry contact will activate the pump. A NORMALLY OPEN setup
will give the opposite response. These inputs are to be attached to a dry contact circuit only, apply no voltage to
these inputs.

7.2.2 Testing Digital Inputs

The MPC VECTOR allows for testing of the two digital inputs. The user must provide a dry contact
closure from a PLC/SCADA or a switch to the digital input under test. See Section 5.3.3.6 Digital Input
Example Wiring for connection details. To view the digital input value, proceed to Menu->System
Setup->Information -> Digital I/O Diagnostics. See Section 16 Menu Maps for navigation if necessary.
Once in the Digital Diagnostics Screen the user will see the following
D I N 1 2 D O U T 1 2 3
1 1 0 0 0
DIN1 and DIN2 show the current values of the digital input on digital input 1 and 2 respectively. A
ZERO represents a closed contact in this screen, an open contact will show a ONE. If values do not
change be sure to check input control wiring.
Inactive
Tank Level Input
Leak Detection (using external device)
Remote ON/OFF Input
Flow verification Input
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