AEG SB4 series User Manual Page 77

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21
Configuration
27
3.2.3 Port Figure of the Working Voltage Supply (U
S
=24VDC/L=
230 VAC) for I/O Modules with Front Connection
The working voltages are combined for two or more outputs (corresponds to a group).
Each group is to be fused separately.
Please ensure that no inadmissible overvoltages occur due to switching operations of
inductive consumers as these can lead to the semiconductors being endangered or de-
stroyed in the programmable controller.
U
S
=24VDC
The 24 VDC working voltage should be supplied by a separate power supply. Further
power supplies are to be configured with load currents >25 A.
Auxiliary circuits may be operated as earthed or unearthed according to VDE 0100 and
VDE 0113. Use an isolation monitoring device with unearthed operation so that a mes-
sage can be output if an isolation fault occurs.
Up to 60 VDC supplied actuators can be wired with the contacts of the DAP 103,
DAP 104 and DAP 106 modules.
L = 230 VAC
24 ... 230 VAC supplied actuators can be wired with the contacts of the DAP 103,
DAP 104 and DAP 106 modules.
Note The use of only one power supply is permitted with a 24 VDC supply require-
ment of <25 A for the entire system.
The sections 5.2 ”EMC measures”, and 3.2 ”Structure of the power supplies”, are to be
noted.
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