Connecting The Dc Bus - Siemens SINAMICS GM150 Operating And Installation Instructions

If several cabinets are set up as one unit, the grounding bars of the individual cabinets must
be connected with each other. A connection jumper is supplied with each cabinet. To connect
the ground bars for several cabinets, proceed as follows:
1. Release the nut
2. Release the nut of the grounding bar on the second cabinet. Remove the nut and the
3. Place the connection jumper
4. Refit the washer and nut.
5. Tighten the nut (torque: 50 Nm).
See also
Torques (Page 210)
5.7

Connecting the DC bus

If several cabinets are set up as one unit, you must connect the DC bus of the individual
cabinets with each other.
1. Place the copper spacer plates
2. Place the connection jumper
SINAMICS GM150 6SL3815-2LN41-4AA2
Operating Instructions 04/2017
①
of the grounding bar on the first cabinet. Remove the nut, the washer
and the connection jumper
①
Nut (M12)
②
Connection jumper
Figure 5-3 Grounding bar
washer.
②
.
②
on the grounding bars in the cabinets to be connected.
②
on top of the DC bus.
①
on the plates.
Installation
5.7 Connecting the DC bus
91