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Connecting
7.3 Connecting components
7.3
Connecting components
7.3
Connect the processing unit with the other components using the connectors on the front
panel.
The pinning of the connectors is described in the section: "Technical specifications" and with
the description of the supplied cable in section: "Scope of delivery/Spares/Accessories".
Caution
Do not connect or disconnect cables when the power supply is on.
Warning
Grounding the SIMATIC VS120 cancels the ungrounded configuration of the power unit.
Note
The DC load power supply must meet the following requirements:
Only a safe, isolated extra-low voltage of 24 V DC may be used as the load current supply.
Safe isolation can be implemented according to the requirements of:
- VDE 0100-410 / HD 384-4-41 S2 / IEC 60364-4-41 as protective extra low voltage with
safe isolation (PELV) or
- VDE 0805 / EN 60950 / IEC 60950 as safety extra-low voltage (SELV) or VDE 0106
Part 101.
The power supply chassis of the I/O and CPU must be connected to the power supply
chassis of the processing unit.
7-2
Vision Sensor SIMATIC VS120
Operating Instructions, Edition 02/2006, A5E00757507-01
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