FANUC Servo amplifier
FANUC spare part — Updated 2026-09-16
Also written “Servoamplifier”.
FANUC Servo amplifier — is referenced by 24 FANUC fault codes in the LogrobotLM catalogue — including SRVO-018, SRVO-021, SRVO-022. 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
- A06B-6107-H0026-axis servo amplifier, alpha-i series (fits R-2000iB, M-710iC, M-20iA, Arc Mate 120iC and others — verify against your robot)R-J3iC / R-30iA
- A06B-6107-H0046-axis servo amplifierR-30iA
- A06B-6114-H3033-axis alpha-i servo amplifier module SVM3-20/20/20ialpha-i
- A06B-6114-H2082-axis alpha-i servo amplifier modulealpha-i
- A06B-6114-H3023-axis alpha-i servo amplifier modulealpha-i
- A06B-6117-H2112-axis alpha-i servo amplifier module aiSV 160/160alpha-i
- A06B-6117-H1051-axis alpha-i servo amplifier module aiSV 80alpha-i
- A06B-6130-H002beta-i servo amplifier unit BiSV-20beta-i
- A06B-6132-H002beta-i servo amplifier BiSV 20 I/O Link (BSVM1-20i)beta-i
- A06B-6400-H1016-axis servo amplifierR-30iB
- A06B-6400-H1026-axis servo amplifierR-30iB
- A06B-6400-H0056-axis servo amplifier (R-30iB Mate/Mate Plus)R-30iB
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 Servo amplifier? 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-018SERVO Brake abnormal
- SRVO-021SERVO SRDY off
- SRVO-022SERVO SRDY on
- SRVO-023SERVO Stop error excess
- SRVO-024SERVO Move error excess
- SRVO-036SERVO Inpos time over
- SRVO-042SERVO MCAL alarm
- SRVO-044SERVO HVAL alarm
- SRVO-046SERVO OVC alarm
- SRVO-047SERVO LVAL alarm
- SRVO-049SERVO OHAL1 alarm
- SRVO-050SERVO Collision Detect alarm
- SRVO-051SERVO CUER alarm
- SRVO-136SERVO DCLVAL alarm
- SRVO-142SERVO OHAL1(INV) alarm
- SRVO-146SERVO LVAL(INV-DC) alarm
- SRVO-147SERVO LVAL(DCLK) alarm
- SRVO-148SERVO HCAL(CNV) alarm
- SRVO-213SERVO Fuse blown (PanelPCB)
- SRVO-214SERVO Fuse blown (Amp)
- SRVO-251DB relay abnormal
- SRVO-252Current detect abnl
- SRVO-253Amp internal over heat
- SRVO-349DCS MCC ON alarm …,…
Often diagnosed together
Parts cited by the same faults as Servo amplifier — check the whole chain before concluding. · Organes cités par les mêmes défauts que Servo amplifier.
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 →