Siemens SINAMICS S120 Equipment Manual page 181

It is essential to connect the shield for the motor holding brake. Furthermore, Motion-
Connect cables must be used for units with an integrated motor holding brake to ensure
that the core insulation is effective. Risk of electric shock.
CAUTION
Only Siemens cables may be used for DRIVE-CLiQ connections.
CAUTION
Connecting cables to temperature sensors must always be installed with shielding. The
cable shield must be connected to the chassis potential at both ends over a large surface
area. Temperature sensor cables that are routed together with the motor cable must be
twisted in pairs and shielded separately.
Note
A regulated DC power supply is required to operate motors with a built-in holding brake. The
voltage is supplied via the internal 24 V busbars. The voltage tolerances of the motor holding
brakes and the voltage drops of the connection cables must be taken into account.
The DC power supply should be set to 26 V. This ensures that the voltage supply for the
brake remains within the permissible range when the following conditions are fulfilled:
• Using Siemens three-phase motors
• Using Siemens MOTION-CONNECT power cables
• Motor cable lengths: max. 100 m
CAUTION
The DC link peripheral covers are supplied as standard with the components; they can also
be ordered separately, if required (order no.: 6SL3162-5AA00-0AA0).
Booksize cold-plate power units
Manual, (GH4), 03.2007, 6SL3097-2AJ00-0BP4
DANGER
Motor Modules with Cold Plate
8.2 Safety information
181