Precision-digital PD6000 User Manual download pdf (Page 62)

Model PD6000 Analog Input Process Meter Instruction Manual

Setting Up the Interlock Relay Feature

Relays 1-4 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.

Act 1

rly 1

Off

Act 1

setup

relay

setup

rly 1

relay

2. In the Advanced features –

User menu program any of the digital

inputs to

Force On any of the internal relays (1-4).

user

F On 1

dI 1

user

3. Connect a switch or dry contact between the +5V terminal and the

corresponding digital input (dI-1 to dI-4) terminal.

123456

+5 I1 I2 I3 I4 O1

O2 O3

910

O4 G

DI 1-4 DO 1-4

5 VDC GND

SW2

SW1

Interlock Relay Operation Example

Relays 1 & 2 are configured to energize (their front panel LEDs are off)

when SW1 & SW2 switches (above) are closed. If the contacts to these

digital inputs are opened, the corresponding front panel LEDs flash indi-

cating this condition. The processes being controlled by the interlock

relay will stop, and will re-start only after the interlock relay is re-

activated by the digital inputs (switches).

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Precision-digital PD6000 User Manual Page 62