Safety Information - Siemens SINAMICS S120 Equipment Manual

Cabinet Design and EMC
14.1 Information
14.1.2

Safety Information

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.
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).
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.
If static discharge occurs on surfaces or interfaces that cannot be easily accessed, this can
cause malfunctions and/or defects.
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 catalog D21.1.
302
DANGER
DANGER
WARNING
WARNING
Booksize cold-plate power units
Manual, (GH4), 03.2007, 6SL3097-2AJ00-0BP4