8.2.2 Notes for UL applications
Description
Note
Motor overload protection
The Motor Module has integrated motor overload protection according to IEC/UL61800-5-1.
Ensure that the motor is protected from overload by observing and following the instructions
below:
• The protection threshold is 115% of the rated motor current.
• Monitoring for motor overload protection is automatically activated during commissioning.
• Enter the motor data and protection function values when commissioning a Motor Module.
• Operation without motor temperature sensor
– Synchronous motors
To ensure motor overload protection, the minimum value of 40 °C for the ambient motor
temperature must be entered in parameter p0613.
– Induction motors
To ensure motor overload protection, the minimum value of 40 °C for the ambient motor
temperature must be entered in parameter p0625.
More information
More information on parameterizing thermal motor models is provided in Chapter "Thermal
motor protection" on the internet:
SINAMICS S120 Function Manual Drive Functions (https://
support.industry.siemens.com/cs/ww/en/view/109781535)
8.2.3 Fault protection for the motor circuit
Description
The converter provides short-circuit protection at the motor output terminals.
The manufacturer's declaration describes the conditions regarding protection against electric
shock in the event of an insulation failure in the motor circuit.
More information
You can nd more information on the Internet:
Manufacturer's declaration (
https://support.industry.siemens.com/cs/ww/en/view/
109476638)
Motor Modules
8.2Safety instructions
Booksize power units
Equipment Manual, 09/2023, A5E53307519B AA 153
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