Bindicator PRD1000 Instruction Manual page 59

PRD1000 Analog Input Process Meter
Setting Up the Interlock Relay (Force On) Feature
Relays 1-2 can be set up as interlock relays. To set up the relays for the
interlock feature:
1. Access the Setup – Relay – Action menu and set the action to off.
2. In the Advanced features – User menu program any of the digital
inputs to Force On any of the internal relays (1-2).
3. Connect a switch or dry contact between the +5V terminal and the
corresponding digital input (dI-1 to dI-4) terminal.
+5
5 VDC
SW2
SW1
1 2 3 4
I1 I2 I3
DI 1-4
5 6 7 8
I4 O1 O2 O3
DO 1-4
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Instruction Manual
9 10
O4 G
GND