Siemens SINAMICS S120 System Manual page 213

Cables
Note
Maximum cable lengths
The maximum permissible cable length to the connected servo solenoid valve is 40 m.
Note
Connector type
The connector used must establish a continuous shield connection between the cable shield
and the housing of the servo solenoid valve. Even for connectors with metal housing, the
shield connection is not always continuous for all types.
• Ensure that there is a shield connection available.
• Observe the "Danger to life through electric shock due to unconnected cable shields"
note in Chapter "Fundamental safety instructions (Page 15)".
Hydraulic Drive
System Manual, 04/2015, 6SL3097-4BA00-0BP1
Hardware
6.2 Interfaces
213