Siemens 6RA70 DC Drive
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Jun 13, 2022 6:21 am
How can resolve problem F027 fault in siemens 6RA70 DC Drive?
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Jun 13, 2022 6:21 am
Cause : Air-flow monitoring of motor fan (active in operating states of < o6)
When parameter P497=2 (air-flow monitoring), fault message at log ”0” signal (longer than 40s) at terminal 213
Possible fault causes
♦ Encoder for fan monitoring has responded
♦ Open circuit in encoder cable
