Cause : Motor overtemperature I2t comes when the temperature of the motor has exceeded safe operating limits or Motor overloaded.
Common causes of motor overtemperature include:
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Overloading: Operating the motor at loads higher than its rated capacity can cause excessive heating.
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Poor ventilation: Inadequate cooling or poor ventilation around the motor can lead to heat buildup.
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High ambient temperature: Operating the motor in a hot environment can exacerbate heat generation.
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Frequent starts and stops: Repeated starts and stops of the motor can lead to thermal cycling, increasing the risk of overheating.
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Faulty cooling system: Malfunctions in the motor's cooling system, such as a malfunctioning fan or blocked air vents, can impede heat dissipation.
Independently of the kind of temperature determination check:
• P0604 motor temperature warning threshold
• P0625 motor surrounding temperature
• Check if name plate data is correct. If not, perform quick commissioning. Accurate equivalent circuit data can be found by performing motor identification (P1900 = 2).
• Check if motor weight (P0344) is reasonable. Change if necessary.
• With P0626, P0627, and P0628 the standard overtemperature can be changed, If the motor is not a SIEMENS standard motor.
