Robotics in Manufacturing

FANUC SRVO

FANUC SRVO Alarm Codes: The Complete List

SRVO alarms are FANUC servo and safety-system alarms. They cover emergency stops, servo amplifier faults, encoder battery and mastering issues, collision detection, brake and axis problems, and dual-channel safety-chain faults. The index below groups published SRVO pages by category so a technician can jump from a pendant code to the matching plain-language troubleshooting page.

Servo

SRVO-001: Operator panel E-stopSRVO-002: Teach pendant E-stopSRVO-003: Deadman switch releasedSRVO-004: Fence openSRVO-006: Hand brokenSRVO-007: External emergency stopsSRVO-009: Pneumatic pressure alarmSRVO-010: Belt brokenSRVO-014: Fan motor abnormal, CPU STOPSRVO-015: System over heatSRVO-018: Brake abnormalSRVO-021: SRDY offSRVO-022: SRDY onSRVO-024: Move error excessSRVO-025: Motn dt overflowSRVO-028: Compensation excessSRVO-030: Brake on holdSRVO-031: User servo alarmSRVO-043: DCAL alarm (regenerative discharge)SRVO-044: DCHVAL alarm (DC link overvoltage)SRVO-045: HCAL alarm (overcurrent)SRVO-046: OVC alarm (overcurrent RMS)SRVO-047: LVAL alarm (low control voltage)SRVO-049: OHAL1 alarm (amplifier overheat)SRVO-050: Collision Detect alarmSRVO-063: RCAL alarm (rotation counter abnormal)SRVO-066: CSAL alarm (pulse coder checksum)SRVO-067: OHAL2 alarm (pulse coder overheat)SRVO-068: DTERR alarm (pulse coder no response)SRVO-069: CRCERR alarm (pulse coder data corrupt)SRVO-070: Serial Data Start/Stop Bit Error (STBERR)SRVO-071: SPHAL alarm (feedback speed excess)SRVO-072: PMAL alarm (pulse coder fault)SRVO-073: CMAL alarm (pulse coder noise/fault)SRVO-074: LDAL alarm (pulse coder LED broken)SRVO-076: Tip Stick DetectionSRVO-078: Servo param updateSRVO-079: Stroke exceeded during pressSRVO-092: Line tracking encoder STBERR communication faultSRVO-098: ACC sensor DTERR alarmSRVO-099: ACC sensor CRCERR alarmSRVO-100: ACC sensor STBERR alarmSRVO-101: Robot overtravel (Group)SRVO-102: Hand broken (Group)SRVO-103: Air pressure alarm (Group)SRVO-106: Door open/E.Stop (Robot)SRVO-108: ACC sensor livecode errorSRVO-109: ACC sensor ID mismatchSRVO-110: ACC sensor disabledSRVO-111: Softfloat time out ($SFLT_ERRTYP=0)SRVO-112: Softfloat time out ($SFLT_ERRTYP=1)SRVO-113: Cart. error excessSRVO-115: Limit errorSRVO-116: Axis Limit ExceededSRVO-117: Brake Number ConflictSRVO-118: SFIGET errSRVO-119: OVR not 100%SRVO-120: SFIVAL abnmlSRVO-121: Excessive acc/dec timeSRVO-122: Bad last ang (internal)SRVO-124: Check HardStop if HitSRVO-126: Quick stop errorSRVO-130: OHAL1 (PS) alarm (power supply overheat)SRVO-131: LVAL / LVAL (PS) alarm (PS control voltage low)SRVO-133: FSAL (PS) alarm (power supply fan stopped)SRVO-134: DCLVAL / DCLVAL (PS) alarm (DC link voltage low)SRVO-135: FSAL alarm (aux amplifier fan stopped)SRVO-136: DCLVAL alarm (aux amplifier DC link low)SRVO-138: SDAL alarm (pulse coder signal error)SRVO-156: IPMAL alarm (overcurrent)SRVO-157: CHGAL alarm (capacitor charge failure)SRVO-170: Lack of DSPSRVO-182: Needed init. has not been doneSRVO-183: ROBOT isn't readySRVO-184: Other task is processingSRVO-186: Needed Data has not been gotSRVO-187: Need specifing MassSRVO-188: Memory is lackingSRVO-198: Alarm Detected (deceleration stop)SRVO-199: Controlled StopSRVO-207: TP switch abnormal or Door openSRVO-209: Robot-n SVEMG abnormalSRVO-211: TP OFF in T1,T2SRVO-213: E-STOP Board FUSE2 blownSRVO-214: 6ch amplifier fuse blownSRVO-215: Brake Unit fuse blownSRVO-216: OVC (total)SRVO-217: E-STOP Board not foundSRVO-219: Safety I/O brd fuse blownSRVO-220: SDI fuse blownSRVO-221: Lack of DSP (G, A)SRVO-222: Lack of AmpSRVO-223: DSP dry runSRVO-224: Slot changed (AuxBrd)SRVO-227: Amplifier fuse blown (FUSE9)SRVO-228: RI/O fuse blown (FUSE4)SRVO-229: SDI fuse blown (FUSE2)SRVO-230: Chain 1 abnormalSRVO-231: Chain 2 abnormalSRVO-232: NTED inputSRVO-233: TP OFF in T1,T2 (hardware ladder)SRVO-235: Short term Chain abnormalSRVO-244: Chain 1 abnormal (Robot n)SRVO-245: Chain 2 abnormal (Robot n)SRVO-246: Chain 1 abnormal (EX_robot)SRVO-247: Chain 2 abnormal (EX_robot)SRVO-248: Deadman switch status abnormalSRVO-251: DB relay abnormalSRVO-252: Current detect abnlSRVO-253: Amp internal over heatSRVO-266: FENCE1 status abnormalSRVO-267: FENCE2 status abnormalSRVO-268: SVOFF1 status abnormalSRVO-269: SVOFF2 status abnormalSRVO-270: EXEMG1 status abnormalSRVO-271: EXEMG2 status abnormalSRVO-275: NTED2 status abnormalSRVO-276: Disable on T2 modeSRVO-370: SVON1 status abnormalSRVO-371: SVON2 status abnormalSRVO-378: SFDI xx status abnormalSRVO-402: DCS Cart. pos. limitSRVO-403: DCS Cart. speed limitSRVO-405: DCS Joint speed limitSRVO-477: Calibration data error (CLLB.CM)SRVO-481: Invalid payload number

System

Warning