Siemens Micromaster 440 or MM440 Drive
2
Posts
1
Users
0
Reactions
285
Views
Jun 12, 2022 9:52 am
How can resolve problem A0504 alarm in siemens micromaster 440 or MM440 drive ?
1 Reply
Jun 12, 2022 9:52 am
Cause : Inverter OverTemperature - Warning level of inverter heat-sink temperature (P0614) is exceeded, resulting in pulse frequency reduction and/or output frequency reduction (depending on parameterization in (P0610)
Diagnosis & Remedy
Check the following:
- Ambient temperature must lie within specified limits
- Load conditions and duty cycle must be appropriate
