GuardPLC™ 1600 Controllers
11
Publication 1753-IN001B-EN-P - March 2004
Follow the closed-circuit principle for external wiring when connecting sensors. To
create a safe state in the event of a fault, the input signals revert to the de-energized
state (0). The “FAULT” LED activates.
Digital Input Terminals
Terminals accommodate wires up to 1.5 mm
2
(16 AWG). Digital inputs are
connected to the following terminals:
TIP
For more information on input wiring, see the
GuardPLC™
System User Manual
, publication number 1753-UM001.
Terminal Number
Designation
Function
13
LS+
Sensor supply for inputs 1 to 4
14
1
Digital input 1
15
2
Digital input 2
16
3
Digital input 3
17
4
Digital input 4
18
L-
Reference pole
19
LS+
Sensor supply for inputs 5 to 8
20
5
Digital input 5
21
6
Digital input 6
22
7
Digital input 7
23
8
Digital input 8
24
L-
Reference pole
25
LS+
Sensor supply for inputs 9 to 12
26
9
Digital input 9
27
10
Digital input 10
28
11
Digital input 11
29
12
Digital input 12
30
L-
Reference pole
1
LS+-
LS+
LS+
LS+
LS+
L-
DI
2 3 4
13 14 15 16 17 18
5
L-
DI
6 7 8
19 20 21 22 23 24
9
L-
DI
10 11 12
25 26 27 28 29 30
13
L-
DI
14 15 16
31 32 33 34 35 36
17
L-
DI
18 19 20
37 38 39 40 41 42
19 20 21 22 23 24
13 14 15 16 17 18
25 26 27 28 29 30
31 32 33 34 35 36
37 38 39 40 41 42
