Siemens SINAMICS S120 Equipment Manual page 373

installation, and routing of motor power cables and signal cables. If unshielded cables are
used between the line supply connection point and the line filter, make sure that no
interfering cable is routed in parallel.
The cable shields must be connected as close to the conductor terminal connections as
possible to ensure a low-impedance connection with cabinet ground.
①
②
③
④
Figure 11-1
Alternatively, the cable shields can be connected to them metal mounting plate using pipe
clamps and serrated rails. The cable length between the shield connection point and the wire
terminals must be kept as short as possible.
Shield connection plates and shield connection kits with pre-prepared clip contacts are
available for connecting the shields of power cables used for Power Modules.
All cables inside the cabinet must be connected as closely as possible to parts connected
with cabinet ground, such as a mounting plate or cabinet wall. Ducts made of sheet steel or
routing cables between between steel sheets (e.g. between the mounting plate and back
wall) should provide adequate shielding.
AC Drive
Manual, 06/2019, 6SL3097-5AL00-0BP1
Rear metal panel
Clip to secure the shield of the motor and line cable to the rear metal panel
Motor cable (shielded)
Line supply input (shielded)
Shielding of a PM240-2 Power Module, frame size FSA
Cabinet design and EMC for components, Blocksize format
11.4 Cable shielding and routing
371