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9.2
Grounding the system
Electric shock even after shutdown
High voltages can still be present even after shutdown. Touching the device can result in death
or serious injury.
● Only work on the power unit if it has been sufficiently grounded. Before touching the device,
● Always observe the five safety rules (Page 13) when carrying out any work on the device.
9.2.1
Grounding using the grounding harness
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
Figure 9-1
SINAMICS SH150 6SL3805
Operating Instructions 05/2020
WARNING
carefully ensure that the power unit is in a no-voltage condition:
Upper fixed spheres
Lower fixed sphere
Schematic diagram: Attaching the grounding spider
Maintenance
9.2 Grounding the system
②
.
①
.
89
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