Motor Modules Booksize Compact as expansion axes
7.2 Safety information
SINAMICS S120 Combi
Manual, Edition 07/2012, 6SL3097-4AV00-0BP3
121
WARNING
Cable shields and unused power cable cores (e.g. brake cores) must be connected to PE
potential to prevent capacitive cross-talk charges.
Non-observance can cause lethal shock voltages.
CAUTION
The cooling clearances of 80 mm above and below the components must be observed.
CAUTION
The tightening torque of the DC-link busbar screws (1.8 Nm, tolerance +30 %) must be
checked before commissioning. After transportation, the screws must be tightened.
CAUTION
Only cables from SIEMENS 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 ground potential at both ends through a large
surface area. Temperature sensor cables that are routed together with the motor cable
must be twisted in pairs and shielded separately.
CAUTION
DC-link lateral covers are supplied with the components as standard and must be attached
to the last component in the drive line-up. They can also be ordered separately, if required
(Order No.: 6SL3162-5AA00-0AA0).
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 (24 V ±10%) and the voltage drops of the connecting cables must be taken into
account.
The DC power supply should be set to 26 V. This ensures that the supply voltage for the
brake remains within the permissible range when the following conditions are fulfilled:
• Use of Siemens three-phase motors
• Use of Siemens MOTION-CONNECT power cables
• Motor cable lengths: max. 70 m
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