Fanuc alarm SV0360: PULSE CODER CODE CHECK SUM ERROR (BUILT-IN)
0i-D servo alarm (built-in pulse coder) · Fanuc 0i-D
What it means
Internal checksum self-test failure inside the motor's built-in serial pulse coder
Likely causes
- built-in pulse coder failure
- feedback cable noise
- amplifier side-board fault (rare)
Triage note: Checksum/phase/LED family alarms almost always mean the coder itself; match replacement to motor model label, not just connector
Replacement parts
We supply the following units for this alarm — tested, warranty-backed:
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A860-2000-T301
Pulse Coder (alpha iA1000, IP65) · Primary suspect
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A860-2070-T321
Pulse Coder (iA4000 absolute) · Common cause
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A860-2010-T321
Pulse Coder (iAR128 high-speed serial) · Common cause
Need the part urgently?
Send us alarm SV0360 with your machine details — typical RFQ turnaround is 24–48h.