Siemens SINAMICS S120 System Manual page 65

Protective conductor connection via the equipotential bonding bar
The protective conductor connection between the HF modules must be established using the
equipotential bonding bar supplied. The equipotential bonding bar is provided in the
accessories pack.
The protective conductor connection of the HF module to the equipotential bonding bar of
the control cabinet is established through a grounding cable, which is attached at the HF
Motor Module.
1. Remove the M8 bolts with flat and spring washers from the following protective conductor
connections:
– HF Motor Module (left)
– HF Choke Module at the left and right, directly at the housing
– HF Damping Module
2. Fix the equipotential bonding bar (
housing of the HF Damping Module (
removed screws, washers and spring washers.
3. Attach the grounding cable of the cabinet with the ring cable lug to the equipotential
bonding bar at the HF Motor Module (
Tightening torques: 13 Nm
Figure 4-17
High Frequency Drive
System Manual, (SH2), 04/2015, 6SL3097-4AH10-0BP3
Installing the equipotential bonding bar
⑤
) to the protective conductor connections of the
⑥
) and HF Choke Module (
④
), and fix both using the remaining screw.
High Frequency Modules
4.6 Electrical connection
①
) using the previously
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