Connecting Cabinets; Connecting The Interface Cable; Figure 5-2 Connecting The Grounding For The Cabinet Units - Siemens SINAMICS PERFECT HARMONY GH150 Operating Instructions & Installation Instructions

Assembly

5.5 Connecting cabinets

5.5 Connecting cabinets
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, 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.
5.5.1

Connecting the interface cable

Connecting the interface terminals of several cabinets
If the power section comprises several transport units, connect the cabinet interfaces with one
another.
The interface cable is located at the bottom section of the cabinet.
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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.
Figure 5-2 Connecting the grounding for the cabinet units
①
through the side panel of the cabinet.
SINAMICS PERFECT HARMONY GH150 6SL38253AE412AA1-Z
Operating Instructions Rev.201910281231 EXAMPLE
②
with an M12 screw.