Design Guide | iC7 Series Air-cooled System Modules
Table 21: 24 V DC Supply Signals (X62)
Terminal
Function
Description
101
+24 V input
In24 V DC, 60 W control supply
102
GND
Power supply ground
61
+24 V external input
Ex24 V DC control supply, maximum 10 A.
Must be fuse-protected.
Possible to daisy chain for multiple controllers.
62
GND
Power supply ground
63
+24 V output
+24 V DC output for daisy chain, only available when the +24 V DC external input con-
trol supply is used.
64
GND
Power supply ground
For the circuit diagrams of the control unit, see
10.3.8 Wiring Diagrams of the +24 V Supply for the Control Unit
8.5
Star Coupler Board
System modules for high current ratings consist of multiple power units that are connected via a star coupler board to 1 control unit.
With the star coupler board, it is possible to connect 3 power units in parallel at the moment.
It is recommended to use an external 24 V power supply connected to the top of the star coupler board. The 24 V supply from the control
board is supervised, so it is cut if consumption is exceeded due to external short circuits. The fiber connection is always needed between
the control board and star coupler board.
The star coupler board can be installed next to the control unit. The star coupler board can also be installed near the power units to make
the cabling from the star coupler board to the power units easier. See
.
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