Siemens SINAMICS GM150

6.5.5 Connecting ground
DANGER
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.
To ensure the correct functioning of the protection and monitoring equipment, ground the
device.
Each cabinet has a grounding lug for grounding the components installed in the cabinet. It is
located at the bottom of the cabinet. Connect the cabinets securely to the plant grounding
system via these grounding lugs.
Figure 6-6 Grounding lug
6.5.6 Connect the auxiliary voltage
Connect the auxiliary voltage 1-phase 230 VAC / 50 Hz
Connect the auxiliary voltage for, e.g. SITOP, GSV, closed-loop control, open-loop control, to
the terminal strip ①. The maximum permissible conductor cross-section is 4 mm
2
.
With options C30 - C49, the auxiliary voltage can be drawn from the matching transformer.
You will find notes in the circuit manual of the drive.
Electrical connection
6.5 Connection
SINAMICS GM150 6SL3815-2LN41-4AA2
Operating Instructions 04/2017 111