Fanuc Beta Servo I/O Alarms and Error Codes

Fanuc Beta Servo Unit I/O Alarms. These alarm and error codes cover the A06B-6093-H15x/H17x series.

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Program or Setting Alarms P/S

Alarm NumberLED  displayDescription
000UA parameter that requires power down has been specified
011FThe specified feedrate is zero
013FThe specified feedrate ( max feedrate) is zero
070tMore than 32 blocks have been registered for a buffering operation
085hInput from the reader/punch interface or the like caused an overrun, parity or framing error
086hInput from the reader/punch interface or the like includes an input/output unit operation ready signal (DR) that is set to off.
087hAfter input form the reader/punch interface or the like stops, character input does not stop even though ten characters have been input.
0909Reference position setting cannot be executed normally.
093uA first to third reference position return cannot be executed because the reference position has not yet been established.
224uThe reference position has not yet been established. This occurs only when the ZRTN bit of parameter No.0001  is set to 0.
2507Input data 1 is invalid
2517Input data 2 in invalid
255nOperation cannot be activated because an invalid mode is specified or because block execution is in progress.
290_ The interface switch signal (DRC) was switched during block execution.
291The speed of an axial movement specified by an external pulse has exceeded the upper limit. This occurs only when the EPEXA bit of parameter No.0001 is set to 1.
292A checksum error for the battery powered memory was detected.

 

Pulse coder Alarms

Alarm NumberLED  displayDescription
3005A communication error (DTER) for the serial pulse coder was detected.
3015A communication error (CRCER) for the serial pulse coder was detected.
3025A communication error (STBER) for the serial pulse coder was detected.
3036An LED disconnection (LDAL) was detected in the serial pulse coder.
3046A mispulse alarm (PMAL) for the serial pulse coder was detected.
3056A miscount  alarm (CMAL) for the serial pulse coder was detected.
3063The motor was overheated (OHAL)
3086A soft phase alarm (SPHAL) was detected.
31911When the absolute pulse coder is  used, the motor has not yet rotated through more than one turn after the first power up.
3502The battery voltage of the absolute pulse coder is low.
3511The battery voltage of the absolute pulse coder is low ( warning).

 

Alarm NumberLED displayDescription
400 4 The servo motor has overheated (estimated value)
401 Servo amplifier ready signal (DRDY) went off.
403 o The cooling fans have overheated.
404J The regeneration discharge  has over heated
405n Reference position return could not be executed correctly.
410 The servo position error in the stop state is larger than the value specified in parameter no 110.
411 The servo position error during movement is larger than the value specified in parameter no 182.
412 c An overcurrent alarm is issued
413 y A DC link overvoltage alarm is issued.
414 P A DC link low voltage alarm is issued.
417 AA parameter has been specified incorrectly.
418 E A DO alarm is issued
423 tThe specified speed excess 32767000 detection units per second.
425 CThe cooling fan has stopped.

 

Overtravel Alarms

Alarm NumberLED  displayDescription
500HThe positive stroke limit has been exceeded
501HThe megative stroke limit has been exceeded
510HThe positive soft stroke limit has been exceeded
511HThe negative soft stroke limit has been exceeded

System Alarms

Alarm NumberLED  displayDescription
EAn error was detected in the RAM write/read test at power up.
8An error was detected in the data collection check for the battery powered memory.
9A data transfer alarm for the battery powered  memory has been issued.
dA watchdog was issued.
bA checksum alarm for the control software ROM is issued.
9A checksum alarm for the ROM that is built into the CPU is issued.
.An error was detected in the control circuit.

I/O Link Alarm

Alarm NumberLED  displayDescription
LA FANUC I/O link error occurred. A unit connected to the line was turned off

No LED Display

Alarm NumberLED  displayDescription
No indicators LitThe control circuit is not operating normally