Using The Equipotential Bonding Strip And Shield Bus; Connecting The Protective Grounding; Figure 6-5 Equipotential Bonding Strip - Siemens SINAMICS GL150 Operating Instructions & Installation Instructions

Malfunction as a result of a missing equipotential-bonding conductor
If the control cabinets are not connected to an equipotential-bonding conductor, malfunctions
can occur in the converter.
● Connect all control cabinets involved in meshed drives to an equipotential-bonding
6.6

Using the equipotential bonding strip and shield bus

Each cabinet is equipped with an equipotential bonding or grounding bar to make it simpler to
connect equipotential bonding conductors.
Connect all internal and external components to this equipotential bonding busbar. is Attach the
shields of incoming and outgoing cables directly to the shield bus. It is important here to
establish the greatest possible area of contact and a good conductive connection.
Figure 6-5
6.7

Connecting the protective grounding

Connect the protective grounding to the cabinets and components in the system via the PE
conductor. Use the ground clamps for this, or the special terminal provided for the auxiliary
voltage.
Route the protective conductors in accordance with IEC 60204‑1 (DIN EN 60204‑1/VDE 0113
Part 1) Safety of machinery – Electrical equipment of machines – Part 1: General requirements.
Where possible, also connect the cabinet conductively over a large area with the building
ground.
Note
The equipotential bonding conductor does not have the function of a protective conductor. The
equipotential-bonding conductor is required for safe operation and as an interference
suppression measure.
SINAMICS GL150 6SL38503UM114PA0Z
Operating Instructions Rev.201910301420 MUSTER
conductor (min. 16 mm
Equipotential bonding strip
). The PE connection provided by the customer is not sufficient.
2
Electrical connection
6.7 Connecting the protective grounding
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