Siemens SINAMICS SM120 - Grounding Using the Grounding Harness; Image 9-1 Schematic Diagram: Attaching the Grounding Spider; Image

9.2.1 Grounding using the grounding harness
Use a three-pole grounding harness for fixed ball points to ground the system.
Note
Ordering a grounding harness
You can order the grounding harness. Contact the Service Center.
Note
Number of grounding harnesses
Depending on the configuration of the drive, use a sufficient number of grounding harnasses.
A grounding harness is required for each three-phase system.
1. Secure the terminal of the grounding harness to the lower fixed sphere ②.
2. Secure the terminals of the grounding harness to the upper fixed spheres ①.
Attaching the grounding spider
① Upper fixed spheres
② Lower fixed sphere
Image 9-1 Schematic diagram: Attaching the grounding spider
Maintenance
9.2 Grounding the system
SINAMICS SM120 6SL38855?B
94 Operating Instructions 12/2015