FANUC 15 Alarms

Fanuc 15 Alarms, Faults & Error Codes

Fanuc 15 alarms, and 15M, 15T series faults and common error codes.

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These alarm codes relate to Model B

Servo Alarms

Alarm Code Type Description of Alarm/Fault
SV 000 TACHOGENERATER DISCONNECT The tachogenerator is disconnected.
SV 001 EXCESS CURRENT IN SERVO The servo motor was overloaded.
SV 002
BREAKER (FEED_CTL_UNIT) OFF The breaker for the velocity control ciruit tripped.
SV 003 ABNORMAL CURRENT IN SERVO Excessive current was detected in the velocity control circuit.
SV 004 EXCESS V TO MOTOR Excessive current was detected in the velocity control circuit.
SV 005 EXCESS DISCHARGE I FROM MOTOR Excessive discharge current from the motor was detected in the velocity control circuit.
SV 006 VELOCITY UNIT POWER TOO LOW Low voltage was detected in the velocity control circuit.
SV 008 EXCESS ERROR ( STOP) Position deviaton when stopped is larger than the value set in parameter No. 1829
SV 009 EXCESS ERROR (MOVING) Position deviaton when stopped is larger than the value set in parameter No. 1828
SV 0010 EXCESS DRIFT COMPENSATION Drift compensation is excessive ( exceeded 500VELO)
SV 011 LSI OVERFLOW The value specified for position deviation compensation is not within the range of -32767 to +32767, or the command value of the D/A converter is not within the range of -8192 to +8192. In general, this alarm occurs to incorrect settings.
SV 012 MOTION VALUE OVERFLOW A speed greater than 512,000 pulses per second ( frequency converted into detection units) was specified. In general, this alarm occurs to incorrect setting of parameter CMR or the feedrate.
SV 013 IMPROPER V-READY OFF The speed control ready signal ( VRDY) went off even though the position control ready signal (PRDY) was on. When a multiaxis amplifier is being used, specifying controlled axis detatchment for any axis driven by the amplifier causes alarm SV013 to be issued from the other axes driven by that amplifier.
SV 014 IMPROPER V READY ON The speed control ready signal (VRDY) went on even though the position control ready signal (PRDY) was off.
SV 015 PULSE CODER DISCONNECTED  The pulse coder is disconnected.
SV 017 ILL POSITION CONTROL LSI A fault occured in the LSI for position control.
SV 018 INCORRECT DSCG FREQUENCY A fault was detected in a resolver or inductsyn feedback frequency.
SV 019 INCORRECT PULSE CODER PULSE A fault was detected in the feedback pulse from the pulse coder.
SV 020 INCORRECT PHASE SHIFT VALUE The resolver or induction phase shift cannot be obtained correctly.
SV 021 1-REV PULSE SIGNAL INCORRECT The single revolution signal for the pulse coder went on at an incorrect position
SV 022 1-REV PULSE MISSING  The single revolution signal for the pulse coder went on at an incorrect position
SV 023 SV OVERLOAD A servo motor overloaded
SV 024 EXCESS ERROR ALARM 2 Alarm 2 for excess synchronous error was generated.
SV 025 V-READY ON (INITIALIZING) During servo control, the speed control ready signal ( VRDY) is on even though it is supposed to be off.
SV 026 ILLEGAL AXIS ARRANGEMENT Parameter NO. 1023 for specifying the arrangement of servo axes is set incorrectly.
SV 027 ILL DGTL SERVO PARAMETER There is an illegal digital servo parameter.

  • A correct motor model type is not set in parameter NO. 1874
  • The number of pulses per motor rotation is not set in parameter NO. 1876
  • The direction of motor rotation set in parameter NO. 1879 is neither 111 nor -111.
SV 030 EMERGENCY STOP Emergency stop occured ) when ENR, a bit of parameter NO. 2001, is 1)
SV 031 EXCESS SPINDLE DIST ( SPDL) Excess position deviation occured for the spindle during rigid tapping.
SV 032 LSI OVERFLOW (SPDL) Data for the LSI used for spindle control overflowed during rigid tapping.
SV 050 ILLEGAL AXIS SYNCHRONZIATION Parameter No. 1023 is set incorrectly.
SV 055 Parameter No. 1023 is set incorrectly.
SV 056 Bit#6 of parameter NO. 1817 is set incorrectly.
SV 99
SPINDLE AXIS ERROR An amplifier alarm occured during spindle contour control.
SV 100
SACOMP, VALUE OVERFLOW The value set for straightness compensation is not withink the range of -32767 to +32767.
SV 101
DATA ERROR (ABS PCDR) A correct machine position cannot be obtained because the absolute pulse coder is faulty or the machine moved far during power on.
SV 110
PULSE CORDER ALARM (SERIAL A) An error was detected in the serial pulse coder ( seriall C) or feedback cable.
SV 111
PULSE CORDER ALARM (SERIAL C) The serial pulse coder is abnormal.
SV 114
ABNORMAL REV.DATA (SERIAL A) The serial pulse coder (Serial A) is abnormal.
SV 115
ABNORMAL COMMUNICATION(SPLC) A serial pulse coder communication failure occured.
SV 116
MCC WELDING ALARM The contact of the magnectic contractor (MCC) in the servo amplifier has melted.
SV 117 ABNORMAL CURRENT OFFSET Digital servo current conversion is abnormal.
SV 118
DETECT ABNORMAL TORQUE An abnormal servo motor load was detected.
SV 119
DETECT ABNORMAL TORQUE (1ST SPDL) An abnormal load was detected on the first spindle motor.
SV 125
EXCESS VELOCITY IN TORQUE In torque control, the specified maximum allowable velocity was exceeded.
SV 126
EXCESS ERROR IN TORQUE In torque control, the maximum allowable accumlated movement specified with a parameter was exceeded.
SV 323
DISCONNECT ALARM BY SOFT Disconnection of the serial pulse coder was detected. ( Software)
SV 324
DISCONNECT ALARM BY HARD Disconnection of the serial pulse coder was detected. ( Hardware)
SV 325
PULSE CODER ALARM1 (SPLC) An abnormality was detected in the serial pulse coder or feedback cable ( Built in unit)
SV 326
PULSE CODER ALARM3 (SPLC) An abnormality was detected in the serial pulse coder or feedback cable ( Built in unit)
SV 327
ABNORMAL REV.DATA (SPLC) The serial pulse coder is abnormal. Replace the pulse coder ( Built in unit)
SV 330
ABNORMAL COMMUNICATION (SPLC) A serial pulse coder communication error occured ( Built in unit)
SV 331
PULSE CODER ALARM2 (SPLC) An abnormality was detected in the serial pulse coder or feedback cable. ( Built in unit)
SV 333
PULSE CODER ALARM4  (EX-LIN) An abnormality was detected in the serial pulse coder or feedback cable. ( seperate linear)
SV 334
PULSE CODER ALARM5 (EX-ROT) An abnormality was detected in the serial pulse coder or feedback cable. ( seperate rotary)
SV 335
ABNORMAL REV.DATA ( EX-ROT) The serial pulse coder is abnormal.
SV 336
BATTERY ZERO (EX)  The serial pulse coder battery voltage is 0V. ( Seperate unit)
SV 338
DETECTOR OVERLOAD (EX)  The serial pulse coder is overloaded ( Seperate unit ).
SV 339
ABNORMAL COMMUNICATION ( EX) A communication error occured in the serial pulse coder ( Seperate unit)
SV 340
PULSE CODER DISCONNECT ( EX) Disconnection of the serial pulse coder was detected ( Seperate unit).

PC Error Alarms

Alarm Code
PC 010 PC ERROR A parity error occured in a PMC ROM.
PC 020 PC ERROR A parity error occured in a PMC RAM.
PC 030 PC ERROR An I/O unit was not allocated correctly.
PC 500 WATCH DOG ALARM A PMC watch dog alarm occured.

Memory File Alarms

Alarm Code Type  Description of Alarm/Fault
IO 030 CHECK SUM ERROR The check sum for a page of NC memory is incorrect.
IO 031 INVALID CODE An invalid code was read from NC memory.
IO 032 OUT OF RANGE MEMORY An attempt was made to read data from or write data to an address outsid of bubble memory.

Power Off Alarms

Alarm Code  Type  Description of Alarm/Fault
PW 000 POWER MUST BE OFF A parameter was set for which the power must be turned off and then on again.
PW 100 ILLEGAL PARAMETER The parameter for setting straightness compensation or the parameter for setting inclination compensation is specified incorrectly.

Graphic RAM Parity Alarms

Alarm Code Type Description of Alarm/Fault
SB 010 GRAPHIC RAM PARITY A parity error occured in the graphic ROM .
SB 011 GRAPHIC RAM PARITY (WORK) A parity error occured in the graphic work ROM.
SB 011 GRAPHIC RAM PARITY (RED) A parity error occured in the RAM for red graphics.
SB 011 GRAPHIC RAM PARITY (GREEN) A parity error occured in the RAM for green graphics.
SB 011 GRAPHIC RAM PARITY (BLUE) A parity error occured in the RAM for blue graphics.

Parameter Alarms

Alarm Code Type Description of Alarm/Fault
SW 000 PARAMETER ENABLE SWITCH ON Parameter setting is enabled. ( PWE, a bit of parameter NO. 8000 is 1)

Overtravel Alarms

Alarm Code Type Description of Alarm/Fault
OT 001 + OVERTRAVEL (SOFT1)  Coordinates specified in an absolute or machine coordinate system are out of range.
OT 002 – OVERTRAVEL (SOFT1)
OT 003 + OVERTRAVEL (SOFT1)
OT 004 – OVERTRAVEL (SOFT1)
OT 005 + OVERTRAVEL (SOFT1)
OT 006 – OVERTRAVEL (SOFT1)
OT 007 + OVERTRAVEL (SOFT1)
OT 008 – OVERTRAVEL (SOFT1)
OT 021 + OVERTRAVEL (SOFT1)
OT 022 – OVERTRAVEL (SOFT1)
OT 030 EXCESS ERROR ALARM 1
OT 031 SYNCHRONIZE ADJUST MODE
OT 032 NEED ZRN (ABS PCDR)  The counter value of the absolute pulse coder does not match the machine coordinates.
OT 034 BATTERY ZERO (ABS PCDR)  The battery voltage of the absolute pulse coder is 0V.
OT 036 BATTERY DOWN (SPLC)  The battery voltage of the serial pulse coder is low.
OT 037 BATTERY DOWN (EX)  The battery voltage of the additional detector is low.
OT 038 BATTERY ZERO (SPLC)  The serial pulse coder battery voltage is 0V
OT 039 BATTERY ZERO (EX) The serial pulse coder battery voltage is 0V
OT 100 SPINDLE ALARM  The serial pulse coder battery voltage is 0V
OT 101 SPINDLE MOTOR OVERHEAT The spindle motor overheated
OT 102 EXCESS VELOCITY (ANALOG)
OT 103 FUSE F7 BLEW  Fuse F7 for the speed control unit of the spindle motor has blown.
OT 104 FUSE F1, F2, OR F3 BLEW  Fuse F1, F2, F3 for the speed control unit of the spindle motor has blown.
OT 105 FUSE AF2 OR AF3 BLEW  Fuse AF2 or AF3 for the speed control unit of the spindle motor has blown.
OT 106 EXCESS VELOCITY (ANALOG)  The speed of the spindle motor exceeded the max rating .
OT 107 EXCESS VELOCITY (DIGITAL)  The speed of the spindle motor exceeded the max rating .
OT 108 VOLTAGE (+24V) TOO HIGH  The voltage of thee 24V power supply for the speed control unit of the spindle is too high.
OT 109 POWER SEMICONDUCTOR OVERLOAD  The power semiconductor overheated.
OT 110 VOLTAGE (+15) TOO LOW  The voltage of the 15V power supply for the speed control unit of the spindle is too low.
OT 111 VOLTAGE EXCESS (DC LINK)  The voltage in the DC link for the speed control unit of the spindle motor is too high.
OT 112 CURRENT EXCESS LINK (DC LINK)  The current in the DC link for the speed control unit of the spindle motor is excessive.
OT 113 CPU ERROR  The CPU or peripheral circuit of the speed control unit of the spindle motor is faulty.
OT 114 ROM ERROR  The ROM of the speed control unit if the spindle motor is faulty.
OT 115 OPTION ALARM Optional alarm for the spindle motor
OT 116 DISCONNECTION POS CODER  The position coder is disconnected
OT 117 SPINDLE OVERHEAT  Spindle alarm was detected by the function for detecting fluctuations in spindle speed.
OT 120 UNASSIGNED ADDRESS (HIGH)  The upper four bits (EIA4 to EIA7) of an external data I/O interface address signal are set to an undefined address (high bits).
OT 121 UNASSIGNED ADDRESS (LOW)  The lower four bits (EIA0 to EIA3) of an external data I/O interface address signal are set to an undefined address (low bits).
OT 122 TOO MANY MESSAGES  Requests were made to display more than four external operator messages or external alarm messages at the same time.
OT 123 MESSAGE NUMBER NOT FOUND  An external operator message or external alarm message cannot be cancelled because no message number is specified.
OT 124 OUTPUT REQUEST ERROR  An output request was used during external data output, or an output request was issued for an address that has no output data.
OT 125 TOO LARGE NUMBER  A number outside of the range 0 to 999 was specified as the number for an external operator message or an external alarm message.
OT 126 SPECIFIED NUMBER NOT FOUND This alarm occurs in the following cases:

The number specified for a program number or sequence number search during external data input could not be found.

The number specified for a work piece number search could not be found.

There was an I/O request issued for a pot number or offset, but either no tool numbers have been input since power on or there is no data for the entered tool number.

OT 127 DI.EIDHW OUT OF RANGE   The value input by external data input signals EID32 to EID47  is out of range.
OT 128 DI.EIDLL OUT OF RANGE  The value input by external data input signals EID0 to EID31  is out of range.
OT 129 NEGATE POS CODER 1 REV ON  The CPU or peripheral circuit of the position coder is faulty.
OT 130 SEARCH REQUEST NOT ACCEPTED  No request can be accepted for a program No or sequence No search because the system is not in memory mode or the reset state.
OT 131 EXT-DATA ERROR (OTHER)  An input request was received for a pot No or offset value while tool data was being registered with G10.

An error occurred during reading or writing of tool data.

OT 132 RETURN ERROR (PTRR) The tool did not return to the stored position along the axis in tool retraction mode.
OT 150 A/D CONVERT ALARM  The A/D converter is faulty
OT 151 A/D CONVERT ALARM  The A/D converter is faulty
OT 184 PARAMETER ERROR IN TORQUE  An invalid parameter was specified for torque control.
OT 200 INTERFERENCE DATA ERROR  The tool figure specified for the tool post interference check is incorrect.
OT 208 INTERFERENCE X1 MINUS  An interference  alarm occurred while the first tool post was moving in the negative direction along the X axis
OT 209 INTERFERENCE X1 PLUS  An interference  alarm occurred while the first tool post was moving in the positive direction along the X axis
OT 210 INTERFERENCE Z1 MINUS  An interference  alarm occurred while the first tool post was moving in the negative direction along the Z axis
OT 211 INTERFERNCE Z1 PLUS  An interference  alarm occurred while the first tool post was moving in the positive direction along the Z axis
OT 212 INTERFERENCE X2 MINUS  An interference  alarm occurred while the second tool post was moving in the negative direction along the X axis
OT 213 INTERFERENCE X2 PLUS  An interference  alarm occurred while the second tool post was moving in the positive direction along the X axis
OT 214 INTERFERENCE Z2 MINUS  An interference alarm occurred while the second tool post was moving in the positive negative along the Z axis
OT 215 INTERFERENCE Z2 PLUS  An interference  alarm occurred while the second tool post was moving in the positive direction along the Z axis
OT 300 S-SPINDLE LSI ERROR  An error occurred in communication with spindle
OT 301 MOTOR OVERHEAT  Motor overheat
OT 302 EX DEVIATION SPEED  Excessive deviation in speed
OT 307 OVER SPEED  Excessive speed
OT 309 OVERHEAT MAIN CIRCUIT  Excessive load on the main circuit
OT 310 LOW VOLT INPUT POWER  Low voltage in the input power supply
OT 311 OVERVOLT POW CIRCUIT  Excessive voltage in the DC link
OT 312 OVERCURRENT POW CIRCUIT  Excessive current in the DC Link
OT 313 DATA MEMORY FAULT CPU  Error in CPU internal data memory
OT 318 SUMCHECK ERROR PGM DATA  Sum check error in ROM
OT 319 EX OFFSET CURRENT U  Excessive offset in U phase current detection circuit.
OT 320 EX OFFSET CURRENT V  Excessive offset in V phase current detection circuit.
OT 324 SERIAL TRANSFER ERROR  Error in serial  data transfer
OT 325 SERIAL TRANSFER STOP  Serial data transfer was stopped
OT 326 DISCONNECT C-VELO DETECT  The Cs axis control speed detection signal is disconnected
OT 327 DISCONNECT POS-CODER  The position coder is disconnected
OT 328 DISCONNECT C-POS DETECT  The Cs axis control speed detection signal is disconnected
OT 329 OVERLOAD  Temp overload
OT 330 OVERCURRENT POWER CIRCUIT  Excessive current in input circuit
OT 331 MOTOR LOCK OR V-SIG LOS  The motor locked up alarm is issued or the speed detection signal is disconnected
OT 332 RAM FAULT SERIAL LSI  Faulty RAM exists in LSI for serial data transfer
OT 333 SHORTAGE POWER CHARGE  Insufficient power charge in DC link
OT 334 PARAMETER SETTING ERROR  Parameter data is out of range
OT 335 EX SETTING GEAR RATIO  An excessive gear ration was set
OT 336 OVERFLOW ERROR COUNTER  The error counter overflowed
OT 399 S-SPINDLE ERROR  Misc spindle amplifier alarm has occured
OT 512 EXCESS VELOCITY  The feedrate specified during polar coordinate interpolation mode was greater than the max cutting feedrate.
OT 513 SYNC EXCESS ERROR  The difference between the positional deviations for the synchronized axes during simple synchronization was greater than the limit set in the parameter.
OT 513 SYNC EXCESS ERROR The difference between the master and the slave axes to be synchronized with each other has exceeded the maximum compensation.

 

SR Alarms

Alarm Code Type Description of Alarm/Fault
SR 160 INTERNAL DATA OVER FLOW Coordinates specified in an absolute or machine coordinate system are out of range.
SR 310 H, S , C ERROR  G10.3, G11.3 or G65.3 is used incorrectly.
SR 311 H, S , C ERROR  A command not permitted during high speed machining was specified.
SR 312 H, S , C ERROR Address P, Q or L is out of range.
SR 313 H, S , C ERROR  High speed machining data does not exist for the number that was called.
SR 314 H, S , C ERROR No cluster exists for the number that was called.
SR 315 H, S , C ERROR An attempt was made to register a number for which high speed machining data already exists.
SR 316 H, S , C ERROR  Memory is full.
SR 317 H, S , C ERROR  The maximum number of sets of high speed machining data has been registered.
SR 318 H, S , C ERROR  An attempt was made to register high speed machining data during background editing.
SR 319 H, S , C ERROR  There is an error in the format of high speed machining data.
SR 320 H, S , C ERROR A macro interrupt occurred during high speed machining.
SR 424 OVER MAXIMAM TOOL DATA  An attempt was made to register new tool data even though the maximum number of sets of tool data has already been set.
SR 590 TH ERROR  TH alarm.
SR 591 TV ERROR  TV alarm
SR 592 END OF RECORD  EOR ( END OF RECORD) was specified partway though a block.
SR 600 PARAMETER OF RESTART ERROR There is an error in the specification of the program restart parameter.
SR 805 ILLEGAL COMMAND An attempt was made to used an illegal command for the reader /punch interface.
SR 806 DEVICE TYPE MISMATCH  An attempt was made to use a command which is invalid for the currently selected I/O device.
SR 807 PARAMETER SETTING ERROR An I/O interface which was not selected as an option was specified, or the settings or parameters are set incorrectly.
SR 810 PTR NOT READY The ready signal for the tape reader is off.
SR 812 OVERRUN ERROR (PTR) The next character was received by the tape reader before it could read a previously received character.
SR 820 DR OFF (1) The data set ready signal for reader/punch interface 1 went off.
SR 821 CD OFF (1) The signal quality detection signal for reader /punch interface 1 went off.
SR 822 OVERRUN ERROR (1)  The next character was received by puncher/punch interface 1 before it could read a previously received character.
SR 823 FRAMING ERROR (1)  No stop bit was detected for a character received by reader/punch interface 1.
SR 824 BUFFER OVERFLOW(1)  The NHC received more than ten characters of data from reader/punch interface 1 even though NC sent a stop mode during data reception.
SR 830 DR OFF (2) The data set ready signal for reader/punch interface 2 went off.
SR 831 CD OFF(2) The signal quality detection signal for reader /punch interface  2 went off.
SR 832 OVERRUN ERROR(2)  The next character was received by reader/punch interface 2 before it could read a previously received character.
SR 833 FRAMING ERROR(2)  No stop bit was detected for a character received by the reader/punch interface 2
SR 834 BUFFER OVERFLOW(2)  The NC received more than ten characters of data from reader/punch interface 2 even though the NC sent a stop code during data reception.
SR 840 DR OFF(3)  The data set ready signal for reader/punch interface 2 went off.
SR 841 DC OFF (3)  The signal quality detection signal for reader/punch interface 3 went off.
SR 842 OVERRUN ERROR(3)  The next character was received by reader/punch interface 3 before it could read a previously read character.
SR 843 FRAMING ERROR(3) No stop bit was detected for a character received by reader/punch interface 3.
SR 844 BUFFER OVERFLOW(3)  The NC received more than ten characters of data from reader/punch interface 3 even though the NC sent a stop code  during data reception.
SR 860 DATA SET READY DOWN(ASR33/43)  The data set ready signal for the 20mA current loop interface went off.
SR 861 CARRIER DETECT DOWN(ASR33/43)  The signal quality detection signal for the 20mA current loop interface went off.
SR 862 OVERRUN ERROR(ASR33/43)  The next character was received by the 20mA current loop interface before it could read a previously received character.
SR 863 FRAMING ERROR(ASR33/43)  No stop bit was detected for a character received by the 20mA current loop interface.
SR 864 BUFFER OVERFLOW(ASR33/43)  The NC received more than ten characters of data from the 20mA current loop interface even though the  NC sent a stop code during data reception.
SR 870 DATA SET READY DOWN  The data mode signal for the RS-422 interface went off.
SR 872 OVERRUN ERROR (RS422)  The next character was received by the RS-422 interface before it could read a previously received character.
SR 873 FRAMING ERROR (RS422)  No stop bit was detected for a character received by the RS-422 interface.
SR 874 BUFFER OVERFLOW (RS422)  The NC received more than ten characters of data fro the RS-422 interface even though the NC sent a stop code during data reception.
SR 880 NOT DRAWING  Communication cannot be made with the graphic CPU.
SR 890 CHECK SUM ERROR (G05)  A check sum error occured ( high speed remote buffer)

 

Overheat Alarms

Alarm Code Type Description of Alarm/Fault
OH 000 MOTOR OVERHEAT A servo motor overheated
OH 001 LOCKER OVERHEAT The NC cabinet overheated