Protective Conductor Connection And Shield Support - Siemens SINAMICS DCM Operating Instructions Manual

7.4.8

Protective conductor connection and shield support

It is always advisable to shield the digital I/O wiring.
The following diagrams show typical Weidmüller shield connection terminals for the shield
supports.
①
②
Figure 7-22
NOTICE
Damage or faulty operation due to incorrect shielding and impermissible cable lengths
If the correct shielding procedures and the permissible cable lengths are not observed, the
machine can be damaged or may malfunction.
• Only use shielded cables.
• Do not exceed the cable lengths stated in the technical data.
Note
Only use screws with a permissible mounting depth of 4-6 mm.
The TM15 enclosure is connected to the ground terminal of the module supply (terminal
X524). If the ground terminal is actually grounded, then the enclosure is also grounded. An
additional ground connection using the M4 screw is especially necessary if high potential
bonding currents can flow (e.g. through the cable shield).
SINAMICS DCM Control Module
Operating Instructions, 12/2018, A5E34888669A
Protective conductor connection with M4 screw / 1.8 Nm
Shield connection terminal, Weidmüller company, type: KLBUE CO1,
Article number: 1753311001
Shield supports and protective conductor connection
Additional system components
7.4 Terminal Module TM15
199