Shield Connection - Siemens SINAMICS SH150 Operating Instructions & Installation Instructions

Electrical connection
6.8 Connecting power cables
6.8.3

Shield connection

Only use shielded medium-voltage cables to reduce cable-conducted radio frequency
interference (RFI) and to achieve the appropriate EMC compatibility.
● The cable shield must be uninterrupted over the complete length of the cable and must
● Do not connect other cable shields, power cables or control signals to the motor cable
● For plants and systems distributed over a wide physical area, always use an equipotential
● Correctly connect armored cable using a cable gland. The cable armor must be connected
Procedure
1
2
Figure 6-7
Input side
Only connect shield 1 on the drive side to the PE shield busbar. Do not connect the shield on
the transformer side.
Output side
Connect shield 1 at the drive to the PE shield busbar. Connect shield 2 at the motor.
76
comprise non-magnetic material. Preferably use cables with foil-type shields.
shield. Powerful electrical interference and disturbances are induced in cables such as
these.
bonding conductor.
to the cable gland around its complete circumference. The gland itself must be in contact
with the gland plate around its complete circumference and must be connected to PE.
Shield connection
Cable gland with grounding bushing
Shield connection
SINAMICS SH150 6SL3805
Operating Instructions 05/2020