Siemens 6RA70 DC Drive
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Jun 13, 2022 8:57 am
How can resolve problem A029 alarm in siemens 6RA70 DC Drive ?
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Jun 13, 2022 8:59 am
Cause : Motor overtemperature (active in all operating states)
Selection via
P493=1 or 3 (thermostat at terminals 22 / 23) or
P494=1 or 3 (thermostat at terminals 204 / 205)
When parameter P490.01=1 (KTY84 at terminals 22 / 23) or P490.02=1 (KTY84 at terminals 204 / 205):
The alarm is activated if the motor temperature reaches or exceeds the values set in parameter P492.
When parameter P490.01=2, 3, 4 or 5 (PTC thermistor at terminals 22 / 23) or P490.02=2, 3, 4 or 5 (PTC thermistor at terminals 204 / 205):
The alarm is activated if the motor temperature reaches or exceeds the trip value of the selected PTC.
