Lenze m850 Series Project Planning page 15

Motor protection
Version with plug:
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Never disconnect the plug when energized. The plug could be destroyed.
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Switch off the voltage supply or disable the inverter prior to disconnecting the plug.
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Installed thermal detectors are no full protection for the machine.
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Limit the maximum current if necessary. Parameterize the inverter so that it will be
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switched off after several seconds of operation with I > I
danger of blocking.
The integrated overload protection does not prevent overloading under all conditions.
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The fuses are no motor protection.
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Use a current-dependent motor protection switch.
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Use the built-in thermal detectors.
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Excessively high torques cause a fracture of the motor shaft.
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Do not exceed the maximum torques according to the technical data on the
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nameplate.
Lateral forces on the motor shaft are possible.
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Align the shafts of motor and driven machine exactly to each other.
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Information on project planning
especially if there is a
rated
Safety instructions
Residual hazards
15