Siemens 6RA70 DC Drive
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Jun 13, 2022 7:38 am
How can resolve problem F055 fault in siemens 6RA70 DC Drive ?
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Jun 13, 2022 7:39 am
Cause : No field characteristic recorded (active in operating states of – –, I, II)
Possible fault causes
♦ The optimization run for field weakening (P051=27) has not yet been executed.
Fault value:
1 P170 = 1 (”torque control”) selected, but “no valid field characteristic has been recorded” (P117=0) yet
2 P081 = 1 (”speed-dependent field weakening”) selected, but “no valid field characteristic has been recorded” (P117=0) yet (P117=0)
