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5.5
Connect to the foundation
Four holes for M12 screws are provided on each cabinet panel to secure the cabinet to the
foundation. Information on mounting holes and their fixing dimensions are specified in the
dimension drawing.
Install the transport units in accordance with the specifications provided in the accompanying
dimension drawings. When doing this, maintain the specified distance between the top of the
cabinet and the ceiling.
5.6
Connecting cabinets
Insufficient grounding
The drive must be grounded to ensure that it operates safely and reliably. If the drive is
operated with insufficient grounding, then the protection and monitoring functions can fail.
Death, serious injury, or material damage will result.
● Always apply all of the necessary protective measures.
● Always observe the five safety rules when working with the drive.
● Follow these steps when grounding the machine:
If several cabinets are set up as one unit, the grounding connections of the individual cabinets
must be connected with each other. A grounding lug connection cable is supplied with each
cabinet. To connect the ground connections for several cabinets, proceed as follows:
1. Insert the grounding cable
2. Secure the grounding cable on the grounding lug
3. Tighten the screw with a torque of 50 Nm.
SINAMICS SM120 6SL38855?B
Operating Instructions 12/2015
DANGER
– Establish the connections in a cabinet.
– Ensure that the connections are also established over several cabinets.
– Establish the ground connection for the whole plant immediately.
Image 5-3
Connecting the grounding for the cabinet units
①
through the side panel of the cabinet.
5.6 Connecting cabinets
②
with an M12 screw.
Assembly
69
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