2.6.4.1.1 Power supply for processor modules
The supply voltage of 24 V DC is connected to a removable 5-pin terminal block. L+/M exist
twice. It is therefore possible to feed e.g. external sensors (up to 8 A max. with 1.5 mm
2
conductor) via these terminals.
Pin Assignment
Label
Function
Description
Terminal block
removed
Terminal block
inserted
L+
+24 V DC
Positive pin of the
power supply voltage
L+
+24 V DC
Positive pin of the
power supply voltage
M
0 V
Negative pin of the
power supply voltage
M
0 V
Negative pin of the
power supply voltage
FE
Functional earth
2.6.4.2
Terminals for power supply and the COM1 interface
Number of cores per ter-
minal
Conductor type
Cross section
1
Solid
0.08 mm
²
to 1.5 mm
²
1
Flexible
0.08 mm
²
to 1.5 mm
²
1 with wire-end ferrule
(without plastic sleeve)
Flexible
0.25 mm
²
to 1.5 mm
²
1 with wire-end ferrule (with
plastic sleeve)
Flexible
0.25 mm
²
to 0.5 mm
²
1 (TWIN wire end ferrule)
Flexible
0.5 mm
²
2.6.4.3
Terminals at the terminal unit
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
4.0
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
Pin assignment
Terminal type:
Spring terminal
System assembly, construction and connection
AC500 (Standard) > Connection and wiring
2022/01/31
3ADR010278, 3, en_US
990
