Siemens Micromaster 440 or MM440 Drive
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Jun 11, 2022 5:25 pm
How can resolve problem F0450 fault in siemens micromaster 440 or MM440 drive ?
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Jun 11, 2022 5:26 pm
Cause : BIST Tests Failure.
Fault value:
1. Some power section tests have failed
2. Some control board tests have failed
4. Some functional tests have failed
8. Some IO module tests have failed. (MM 420 only)
16. Internal RAM failed on power-up check
Diagnosis & Remedy
Drive may run but some features will not work properly.
