Safety Information - Siemens SINAMICS S120 Equipment Manual

Accessories
13.4 Reinforced DC-link busbars
13.4.2

Safety information

Risk of electric shock. Dangerous voltages are still present for up to 5 minutes after the
power supply has been switched off.
The protective cover for the DC link must not be opened until this time has elapsed.
The components must only be operated when the protective cover of the DC link is closed.
Damaged components must not be used further.
The DC link discharge time hazard warning in the local language must be attached to all of
the components.
A set of labels in 16 languages is provided with the component.
If this is not carefully observed, it can result in subsequent damage and accidents.
If a 50 mm wide Motor Module or if a DC link component with the appropriate width (e.g.
Braking Module, Control Supply Module, Voltage Clamping Module) is located at the left-
hand end of the drive line-up, the DC link bridge (including the screws) must be removed.
The screws must not be inserted without a DC link bridge.
For all of the other power units and DC link components (e.g. Capacitor Module) that are
wider than 50 mm, the DC link bridge must not be moved to the left or removed.
If this is not carefully observed, it can result in subsequent damage and accidents.
The left and right ends of the DC link busbar of a drive line-up must be closed using lateral
covers (Order No.: 6SL3162-5AA00-0AA0).
The protective cover for the DC link must be closed for all components before the voltage
supply is switched on. The interlocks must audibly engage.
The tightening torque of the DC link busbar screws (1.8 Nm +30%) must be checked after
transportation and before commissioning when the system is disconnected from the power
supply and the DC link is discharged.
Note
When opening the protective cover for the DC link, you must press the release catch. A
suitable tool (e.g. screwdriver) must be used for this purpose.
290
DANGER
Booksize cold-plate power units
Manual, (GH4), 03.2007, 6SL3097-2AJ00-0BP4