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 mm² to 1.5 mm²
1 Flexible 0.08 mm² to 1.5 mm²
1 with wire-end ferrule
(without plastic sleeve)
Flexible 0.25 mm² to 1.5 mm²
1 with wire-end ferrule (with
plastic sleeve)
Flexible 0.25 mm² to 0.5 mm²
1 (TWIN wire end ferrule) Flexible 0.5 mm²
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
2022/01/313ADR010278, 3, en_US990
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