3 Electrical connection
3.3.2
Digital inputs
All digital inputs are optional. The connection depends on the device version.
Connection
Apply signal DC 0/24 V to the terminal of
the relevant input (terminal 18 to 32).
Ground reference via GND terminal re-
quired!
Or (alternative connection option):
Apply the voltage DC 24 V from terminal
+24 V via a potential-free contact to the
terminal of the relevant input (terminal 18
to 32).
External voltage supply DC 24 V re-
quired at terminals +24 V and GND!
3.3.3
Digital outputs
The digital outputs 1 to 17 are available by default, the digital outputs 18 to 32 are optional. The connec-
tion of the optional digital outputs depends on the device version.
Connection
Output signal DC 0/24 V / max. 500 mA
External voltage supply DC 24 V re-
quired at terminals +24 V and GND!
3.3.4
External voltage supply
Connection
DC 24 V (front)
NOTE!
The conductor cross-section must be selected taking into account the maximum current and the country-
specific regulations (see chapter "Technical Data").
22
Input
Terminals
18
18 and GND
to
to
32
32 and GND
18
18 and +24 V
to
to
32
32 and +24 V
Output
Terminals
1
1 and GND
to
to
17
17 and GND
18
18 and GND
to
to
32
32 and GND
Terminals
+24 V and
GND
Symbol and terminal designation
+
-
Symbol and terminal designation
+
-
+
-
Symbol and terminal designation
+
U
x
-
18 to 32
GND
18 to 32
+24 V
1 to 17
GND
18 to 32
GND
+24 V
GND