01/2007
9.1 Requirements
9-242
© Siemens AG 2007 All Rights Reserved
SINUMERIK 840Di sl Manual (HBIsl) – 01/2007 Edition
9.1.2 Safety information
!
Danger
A hazardous voltage will be present in all components for a further 5 minutes after the
system has been shutdown.
Please follow the instructions on the component!
!
Caution
For safety reasons, Safety Integrated must be commissioned using STARTER in online
mode.
Reason:
STARTER should only be used to store the safety parameters of a single Safety Integrated
monitoring channel within a project. Loading the project into a drive unit with active safety
functions would result in differences in both Safety Integrated monitoring channels and
subsequently in alarms.
Notice
Before switching on the drive for the first time, check that the screws of the DC link busbars
are tightened to the specified torque (see SINAMICS S120 Equipment Manual).
A risk assessment enables machine manufacturers to determine the residual
risk for their machine with respect to the drive units. The following residual risks
are defined:
S Unexpected drive movement from standstill:
Caused, for example, by installation/operational errors or by a malfunction in
the higher–level controller, drive controller, encoder evaluator, or the en-
coder.
This residual risk can be significantly reduced through the ”Safe standstill”
safety function (Safety Integrated).
S Unexpected change in speed/velocity during operation:
Caused, for example, by a malfunction in the higher–level controller, drive
controller, or encoder.
Residual risk
9 Drive Commissionin
SINAMICS
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