Precision Digital PD6310 - Manual (Page 61)

Model PD6210 & PD6310 Batch Controllers Instruction Manual
61
Setting Up the Interlock Relay (Force On) 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.
2. In the Advanced features – User menu program any of the digital
inputs to Force On any of the internal relays (1-4).
3. Connect a switch or dry contact between the +5V terminal and the
corresponding digital input (dI-1 to dI-4) terminal.
1 2 3 4 5 6
+5 I1 I2 I3 I4 O1
7 8
O2 O3
9 10
O4 G
DI 1-4 DO 1-4
5 VDC GND
SW2
SW1
Interlock Relay Operation Example
Relays 3 & 4 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
indicating this condition. The processes being controlled by the interlock