Deif PPM 300 - Relay Output Wiring; Relay Output with Wire Break Detection

6.6.4 Relay output wiring
The following diagram shows the connection of the relay output to an external relay. For the wiring shown, there is no voltage on the
external relay when the controller relay is open.
12/24 V DC
0 V DC
Relay
A1
A2
INFO
Use a diode size as recommended by the relay supplier.
The terminal connections can be switched around without affecting the performance.
12/24 V DC
0 V DC
Relay
A1
A2
INFO
Remember to install the freewheeling diode ( ). This diode prevents a sudden voltage spike across the inductive
load when the voltage source is removed.
6.6.5 Relay output with wire break detection
The diagram below shows an example of the wiring for this output.
INSTALLATION INSTRUCTIONS 4189340909I UK Page 78 of 144