Safety Information - Siemens SINAMICS S120 Equipment Manual

Cabinet Design and EMC
12.1 Information
12.1.2

Safety Information

Danger
When installing the cabinet, you must cover the ventilation slots to prevent drill swarf, wire
end ferrules, and so on from falling into the housing, which could result in short-circuits or
damage the insulation.
Safety regulations governing shock protection must be observed. See also EN 60204–1.
Danger
Only motors with a safe electrically isolated holding brake may be connected. The brake
conductors must also be safely electrically isolated.
If the motor power cable is connected to intermediate terminals, the power cables and brake
cables must be routed apart (≥ 300 mm).
Warning
Cable shields and unused conductors of power cables (e.g. brake conductors) must be
connected to PE potential.
Non-observance can cause lethal shock voltages.
Caution
The tightening torque of the DC link busbar screws (1.8 Nm) must be checked before
startup.
To ensure that the encoder system works properly, you are advised to use the original
Siemens accessories from catalogs D21.1 and D21.2.
12-2
Equipment Manual Booksize Cold-Plate Power Sections
Manual, (GH4), Edition 06.2005, 6SL3097-2AJ00-0BP2