Grounding Using The Grounding Harness; Image 9-1 Schematic Diagram: Attaching The Grounding Spider; Image - Siemens SINAMICS SM120 Operating Instructions & Installation Instructions

Maintenance
9.2 Grounding the system
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. Secure the terminals of the grounding harness to the upper fixed spheres
Attaching the grounding spider
①
②

Image 9-1

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Upper fixed spheres
Lower fixed sphere
Schematic diagram: Attaching the grounding spider
②
.
①
.
SINAMICS SM120 6SL38855?B
Operating Instructions 12/2015