2
7
2- Inputs and outputs
2�2 Example
Later on we will congure inputs and outputs, as well as a controller for a heating central as illus-
trated below.
2�3 Electrical connection
Here are some examples of dierent electrical connection options.
2�3�1 Power supply
The WMPro can run o a 12 V DC or 24 V AC or DC power supply. If a 24 V power supply is used, the
12 V DC and 24 V DC terminals can be used, each with a 100 mA load. These terminals can be used to
operate relays and two-wire sensors with 4-20 mA outputs.
+24V
+12V in/out
GND
+24V out
max. 0,1A
+24VDC
AC / DC
+24V
+12V in/out
GND
+24V out
12VDC
Power supply 24V AC/DC Power supply 12 VDC