WARNING
Inactive safety functions
Inactive safety functions or ones that have not been adapted can result in machine
malfunctions. These malfunctions can result in death or severe injury.
● Comply with the safety instructions in Chapters "Safety instructions" and "Safe Torque
Off / Safe Standstill (Option K80) (Page 56)" before you commission the converter.
● Carry out a safety inspection for functions relevant to safety on the entire system, including
all safety-related components.
● Ensure that the safety functions used in your drives and automation tasks are adjusted
and activated using the appropriate parameterizing.
● Carry out a function test (Page 68).
● Only put your plant/system into live operation once you have ensured that the functions
relevant to safety are operating correctly.
WARNING
High voltages from machines still turning and connected
Rotating machinery can induce dangerous high voltages and synchronous motors that are
not de-excited immediately can also pose a hazard. If the connection to the motor is not
isolated or grounded, these voltages can also remain. Touching live parts can result in death
or serious injury.
● Before opening the doors, wait until the connected machine has come to a standstill.
WARNING
High voltages from DC link capacitors
High voltages are still present at the DC link capacitors even after shutdown. Touching live
parts can result in death or serious injury.
● A label on the converter specifies the discharge times of the DC link capacitors. Only open
the converter once these discharge times have expired.
● Observe the five safety rules when performing any work.
WARNING
High auxiliary voltages
High auxiliary voltages are still present even after shutdown. Touching live parts can result
in death or serious injury.
● Observe the five safety rules when performing any work.
Safety instructions
2.4 Safe handling
SINAMICS SM150 6SL3845-7NN46-7AA0
Operating Instructions 04/2017 19
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