WARNING
High voltages
The drive is not disconnected from the supply system by the "Safe Torque Off / Safe Standstill"
function. Dangerous voltages of over 1000 V are present on the motor and drive.
High voltages can cause death or serious injury if the safety rules are not observed or if the
equipment is handled incorrectly.
● Do not undertake any work on electrical connections without previously putting all the
necessary precautions in place. Observe the five safety rules before undertaking work on
the equipment.
See also
Safety instructions (Page 17)
3.6.11.2 Description
The central components of the "Safe Torque Off" function are the safety relay -K110 and the
PSA. Standard components are used for the additionally required time relay -K120 and
auxiliary contactors ‑K121, ‑K125 and ‑K130.
Description
3.6 Description of options
SINAMICS SM150 6SL3845-7NN46-7AA0
58 Operating Instructions 04/2017
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