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5.7
Connecting the grounding bars
Danger due to failure of the protective and monitoring equipment
The converter must be grounded to ensure that it operates safely and reliably. If the converter
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 converter.
● Follow these steps when grounding the machine:
If several cabinets are set up as one unit, they must be connected to each other. A connection
jumper is supplied with each cabinet. To screw several cabinets together, proceed as follows:
1. Loosen the M12 nut
2. Loosen the M12 nut
3. Place the connection jumper
4. Refit the washer and nut.
5. Tighten the nut (torque: 50 Nm).
SINAMICS SM150 6SL3845-7NN46-7AA2
Operating Instructions Rev.201910281345 EXAMPLE
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.
①
②
jumper
.
①
be connected.
①
M12 nut; washer
②
Connection jumper
Figure 5-3
Connecting cabinets
on the first cabinet. Remove the nut, the washer and the connection
on the second cabinet. Remove the nut and the washer.
②
on the support for the connection jumper in the cabinets to
5.7 Connecting the grounding bars
Installation
79
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