78
5.3 Relays
Note. Refer to the Rear Fold-out/
Table B for default relay assignments.
Relay contacts are rated at:
115/230 V AC at 5 A (non-inductive)
250 V DC 25 W max.
A suitable fuse must be fitted.
5.3.1 Setting the Relay Links – Fig. 5.9
Set the links on the option board (if fitted).
5.4 Digital Output
15 V DC min. at 20 mA
Min. load 750 Ω
5.5 Control or Retransmission
Analog Output
Max. load 15 V (750 Ω at 20 mA).
Isolated from analog input, dielectric strength
500 V for 1 minute.
…5 INSTALLATION
LK3
LK4
LK3 = Relay 3
LK4 = Relay 4
Normally Closed
Normally Open
Note. The default setting for the relay links is 'Normally Open' (N/O).
Fig. 5.9 Relay Links
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