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M
MitsubishiMDS-E (DRIVE)
4D.39 — ALARM 4D.39 — NON-SAFETY ENCODER: POSITION FEEDBACK FIXATION DIAGNOSIS ERROR
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Turn the NC and drive unit main power OFF, wait for the unit to completely discharge, and turn it back ON (PR reset). If the alarm was caused by a transient encoder processing glitch, this will clear the error.
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