Siemens 6RA70 DC Drive
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Jun 13, 2022 6:22 am
How can resolve problem F028 fault in siemens 6RA70 DC Drive ?
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Jun 13, 2022 6:22 am
Cause : Motor overtemperature (active in operating states of ≤ o6)
When parameter P498=2 (thermostat connected), fault message at log. “0” signal (longer than 10s) at terminal 214
Possible fault causes
♦ Thermostat for monitoring motor temperature has responded
♦ Open circuit in encoder cable
