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FanucGeneral Series CNC
305 — Alarm 305 (ABSOLUTE PULSE CODER IS FAULTY) Diagnostic Tree
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Check parameter 1815. Ensure that bit 5 (APCx) is set to 1 if the position detector is an absolute pulse coder, and verify bit 4 (APZx) reflects the correct reference position status (0: not established, 1: established).
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