Safety Information - Siemens SINAMICS S120 Combi User Manual

S120 Combi Power Modules

3.2 Safety information

3.2 Safety information
Risk of electric shock
A hazardous voltage is still present for up to 5 minutes after the power supply has been
switched off.
The front cover must not be opened until this time has elapsed.
It is only permissible to operate the S120 Combi when the front cover is mounted. When
operating without expansion axes, the factory-mounted DC link cover must not be removed.
Damaged components must not be used further, Secondary damage or accidents can
otherwise result.
If cables are not connected to terminals X1 (line connection) and X2 (motor connection -
spindle), then touch protection according to degree of protection IP20 to EN 60529 is not
guaranteed.
DC link discharge time
The danger note for the DC link discharge time must be placed on the component in the
national language.
A set of labels in 16 languages is provided with the component.
If the S120 Combi is not disconnected from the line supply system (e.g. via the line
contactor or main switch), the DC link remains charged.
CAUTION
DC link busbars
After the S120 Combi has been expanded with expansion axes and/or DC link components,
the correct tightening torque of the DC link busbar bolts must be checked (1.8 Nm,
tolerance +30 %). The check is made before commissioning when the overall plant or
system is in a no-voltage state with the DC link discharged. After transportation, the screws
must be tightened.
60
DANGER
DANGER
DANGER
DANGER
SINAMICS S120 Combi
Manual, Edition 07/2012, 6SL3097-4AV00-0BP3