Siemens SINAMICS SM150, Operating And Installation Instructions

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In the standard version, Emergency Off stop category 0 is set for an uncontrolled stop. It also
has a function for disconnecting the drive from the power supply via the circuit-breaker. The
motor coasts down. The Emergency Off, stop category 1 function includes rapid stopping of
the drive using a deceleration ramp to be parameterized by the user. Voltage is then
disconnected from the drive as described for Emergency Off, stop category 0.
The EMERGENCY OFF button with protective collar is installed in the drive cabinet door.
WARNING
Danger from auxiliary voltages that are connected
When you press the EMERGENCY STOP button, the motor is stopped either uncontrolled
or controlled depending on the selected category 0 or 1, and the drive blocks the inverter, in
line with IEC60204-1 (VDE0113).
Auxiliary voltages such as those for separately-driven fans or anti-condensation heating are
still present. Certain areas within the drive also remain under voltage, e.g. the control function
or auxiliaries. When touching these auxiliary voltages, this can result in death or serious
physical injury.
Ensure that the EMERGENCY OFF button is integrated in the safety system for the whole
machine so that all the voltages are completely disconnected. For this purpose, an NC contact
is installed at terminals =.LA–X51:1A or 1C and =.LA–X51:2A or 2C.
3.6.19 Safety locking system (option M10)
The safety locking system is based on the key transfer system developed by Castell. It is a
supplementary mechanism to the electromechanical door locking system integrated as
standard. The medium-voltage breaker must be opened before access can be gained to the
coded key of the key exchange unit. The opened medium-voltage breaker releases the key to
the key exchange unit. This key enables the access to the keys for the cabinet doors of the
power unit. This key interlocking system ensures that the converter is disconnected from the
medium-voltage supply and that no cabinet components are connected to medium voltage.
As long as the cabinet doors are not closed again and the keys to the power-unit cabinet are
not inserted back in the key exchange unit, the key for the medium-voltage breaker will not be
released. The medium-voltage breaker cannot be switched on again.
See also
Secure locking system (option M10) (Page 162)
3.6.20 Power cable connection at the drive input from above (option M13)
You can introduce the line-side power cable into the cabinet from the top.
Description
3.6 Description of options
SINAMICS SM150 6SL3845-7NN46-7AA0
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Operating Instructions 04/2017