29
4 Electrical connection
4.4.4
Digital inputs/outputs 1 to 12 (option 3)
4.4.5
Relay
Version
Connection element.Terminal /
Assignment
Terminals and connection symbol
Digital input DC 0/24 V or
digital output DC 0/24 V
(individually switchable),
auxiliary voltage (output) DC 24 V
(100 mA, sum of the currents at the
terminals 14.7 and 15.7)
14.1 / Digital input/output 1
14.2 / Digital input/output 2
14.3 / Digital input/output 3
14.4 / Digital input/output 4
14.5 / Digital input/output 5
14.6 / Digital input/output 6
14.7 / +24 V
14.8 / GND
Example: potential-free contact at
input 1 and +24 V (auxiliary voltage)
15.1 / Digital input/output 7
15.2 / Digital input/output 8
15.3 / Digital input/output 9
15.4 / Digital input/output 10
15.5 / Digital input/output 11
15.6 / Digital input/output 12
15.7 / +24 V
15.8 / GND
Example: external voltage at input 1
and GND
Note:
Auxiliary voltage supply and digital
outputs deliver together max. 100
mA at 24 V.
Example: external relay at output 1
and GND (max. 40 mA per output,
max. 100 mA on the whole)
1 2 3 4
+ -
5 6 7 8
1 2 3 4
U
+ -
x
5 6 7 8
24 V
-
+
1 2 3 4
+ -
5 6 7 8
I max = 40 mA
Version
Connection element.Terminal /
Assignment
Terminals and connection symbol
Relay (changeover contact)
(max. 3 A at AC 230 V, resistive load)
4.1 / Normally open contact (NO)
4.2 / Joint contact (C)
4.3 / Normally closed contact (NC)
3
1
2