Siemens Sinamics S120M, Руководство по эксплуатации оборудования

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8.5 Potential equalization
Protective connections for central components (AM600)
The SINAMICS S Booksize drive system and the Adapter Module 600 (AM600) are designed
for use in cabinets with a PE conductor connection.
Connect the protective conductor connection of the SINAMICS components to the protective
conductor connection of the control cabinet as follows:
Table 8-10 Conductor cross-section for copper protective connections
Line supply cable in mm
2
Copper protective connection in mm
2
Up to 16 mm
2
The same as the line supply cable
From 16 mm
2
to 35 mm
2
16 mm
2
From 35 mm
2
0.5 • line supply cable
For materials other than copper, increase the cross-section so that as a minimum, the same
conductivity is attained.
Incorporate all system components and machine parts in the protection concept.
Arrange the drive line-up on a single, bare metal mounting plate in order to comply with the
EMC limit values. Connect the mounting plate to the protective conductor connection of the
control cabinet through a low impedance.
Protective equalization for a central components (AM600)
A mounting plate serves simultaneously as potential equalization surface. This means that no
additional equipotential equalization is required within the drive line-up.
If a single, bare metal mounting plate is not available, you can establish equally good functional
equipotential bonding using cable cross-sections as listed in the table above or, as a minimum,
with the same conductivity.
Protective connections/potential equalization for distributed components
● The distributed components are designed for use with a connected protective conductor.
● Incorporate all system components and machine parts in the protection concept.
● Ensure that the following protective conductor connection paths are available:
– Via the hybrid cable.
– Via the PE connection. In this case, the protective conductor cross-section must be
≥4 mm
2
.
Each of these connections must be suitable as a protective connection.
Control cabinet design
8.5 Potential equalization
Manual, 06/2019, 6SL3097-5AW00-0BP1
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