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SmartPLC SafeLine with PROFIBUS slave interface
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5.2.1
Standard configuration: 24 V power supply and AS-i power supply/supplies
42279
► Connect the supply voltage inputs of the device to the power supply intended for this purpose.
AS-i bus 1
Connect the AS-i 1+ and AS-i 1- pins of terminal X1 to the AS-i power supply (e.g. AC1254) of the
first AS-i bus.
AS-i bus 2
Connect the AS-i 2+ and AS-i 2- pins of terminal X1 to the AS-i power supply (e.g. AC1254) of the
second AS-i bus.
Power must be applied simultaneously to the Safe_IO module (terminal X4) and to the
device supply (terminal X2).
24 V device supply
Connect the pins 24 V and 0 V of terminal X2 to a 24 V DC power supply (18...32 V
SELV/PELV).
24 V Safe-IO power supply
Connect the pins 24 V and GND of terminal X4 to a 24 V DC power supply (18...32 V
SELV/PELV).
► Ensure a low-resistance connection of the symmetry point of the device (terminal X1, pin 5 FE) to
the ground of the installation.
► For the 24 V power supply (device, Safe-IO), select a power supply which supplies an output
current of at least 3 A.
► The cable length of the DC supply between power supply and AC412S is to be limited to max. 3
m.
The power supplies used must meet the standard DIN EN 60950-1 for SELV/PELV.