FANUC Panel board — Operator panel board
FANUC spare part — Updated 2026-09-16
Also written “Panelboard”.
FANUC Panel board — Operator panel board — is referenced by 22 FANUC fault codes in the LogrobotLM catalogue — including SRVO-004, SRVO-021, SRVO-335. Those are the faults that put this part under suspicion; confirm the real cause against your robot's backup before ordering a replacement.
Orderable part numbers
- A20B-2101-0370operator panel boardR-30iA
- A20B-2100-0770operator panel boardR-J3iB
- A20B-9002-0310operator panel boardR-J3
Controller generation matters — always match the exact variant on your unit's label before ordering.
Fault codes that point to this part
Searching for a Panel board? These FANUC faults name it among the parts to check. Open any one for the meaning and what to check — then confirm which cause is really yours before ordering.
- SRVO-004SERVO Fence open
- SRVO-021SERVO SRDY off
- SRVO-335DCS OFFCHK alarm …,…
- SRVO-348DCS MCC OFF alarm …,…
- SRVO-349DCS MCC ON alarm …,…
- SRVO-370SVON1 status abnormal
- SRVO-371SVON2 status abnormal
- SRVO-372OPEMG1 status abnormal
- SRVO-373OPEMG2 status abnormal
- SRVO-374MODE11 status abnormal
- SRVO-375MODE12 status abnormal
- SRVO-376MODE21 status abnormal
- SRVO-377MODE22 status abnormal
- SRVO-378OPSFTY11 status abnormal
- SRVO-380OPSFTY21 status abnormal
- SRVO-381OPSFTY22 status abnormal
- SRVO-382OPSFTY31 status abnormal
- SRVO-383OPSFTY32 status abnormal
- SRVO-384OPSFTY41 status abnormal
- SRVO-385OPSFTY42 status abnormal
- SRVO-412DCS COUNT3 alarm …,…
- SRVO-413DCS CC_SAFEIO alarm …,…
Often diagnosed together
Parts cited by the same faults as Panel board — check the whole chain before concluding. · Organes cités par les mêmes défauts que Panel board.
Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. How this reference is built →