Fanuc Beta I Servo Unit I/O Alarms and Error Codes

Fanuc Beta I Servo Unit I/O Alarms for series A06B-6132.

Please contact us if you need testing, a repair or an exchange part. For further information please visit our dedicated: Fanuc Beta I Servo Unit I/O Link Page.

Program or setting alarms (PS alarms)

LED displayNoDescription of Alarm/Error
U000A parameter that requires power down has been specified
F011The specified feedrate is zero
F013The specified feedrate (maximum feedrate) is zero
I-070More than 32 blocks have been registered for a buffering operation
h085Input from the reader/punch interface or the like caused an overrun, parity, or framing error.
h086Input from the reader/punch interface or the like includes an imput/output unit operation ready signal (DR) that is set to off.
9087After input from the reader/punch interface or the like stops, character input does not stop even though ten characters have been input.
u090Reference position setting cannot be executed normally.
u093A first to third reference position return cannot be executed because the reference position has not yet been established.
7224The reference position has not yet been established. This occurs only when the ZRTN bit of parameter NO.001 is set to 0.
7250Input data 1 is invalid
7251Input data 2 is invalid
n255Operation cannot be activated because an invalid mode is specified or because block execution is in progress
n255The interface switch signal (DRC) was switched during block execution
4291The speed of an axial movement specified by an external pulse has exceeded the upper limit. This occurs only when the EPEXA bit of a parameter N0.001 is set to 1.
7292A checksum error for the batter powered memory was detected.

Pulse Coder Alarms

LED displayNoDescription of Alarm/Error
 5300A communication error (DTER) for the serial pulse coder was detected.
 5301A communication error (CRCER) for the serial pulse coder was detected.
 5302A communication error (STBER) for the serial pulse coder was detected.
 6303An LED disconnection (LDAL) was detected in the serial pulse coder
 6304A mispulse alarm (PMAL) for the serial pulse coder was detected
 6305A miscount alarm (CMAL) for the serial pulse coder was detected
 3306The motor has overheated (OHAL)
 6308A soft pulse alarm (SPHAL) was detected
 11319When the absolute pulse coder is used, the motor has not yet rotated through more than one turn after the first power up.
 2350The battery voltage of the absolute pulse coder is low
 1351The battery voltage of the absolute pulse coder is low ( warning)

 

Servo Alarms

LED displayNoDescription of Alarm/Error
4400The servo motor has overheated
 401Servo amplifier ready signal (DRDY) went off.
403The cooling fans have overheated. ( hardware detection)
J404The regenerative discharge unit has overheated.
n
405Reference position return could not be executed correctly.
r
410The servo position error in the stop state is larger than the value specified in parameter no 110.
r411The servo position error during movement is larger than the value specified in parameter no 182
c412An overcurrent alarm is issued
y413A DC link overvoltage alarm is issued
p414A DC Link low voltage is issued
A417A parameter has been specified incorrectly
418A DO alarm is issued
t423The specified speed exceeds 32767000 detection units per second
C425The cooling fan has stopped

Over Travel Alarms

LED DisplayAlarm CodeDescription of Alarm/Error
H500The positive stroke limit has been exceeded
H501The negative stroke limit has been exceeded
H510The positive soft stroke limit has been exceeded
H511The negative soft stroke limit has been exceeded

System Alarms

LED DisplayAlarm CodeDescription of Alarm/Error
EAn error was detected in the RAM write/read test at power up
8An error was detected in the data collation check for the battery powered memory
9A data transfer alarm for the battery powered memory has been issued
dA watchdog alarm was issued
bA checksum alarm for the control software ROM is issued
 A 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

LED DisplayAlarm CodeDescription of Alarm/Error
LA Fanuc I/O link error occured. A unit connected to the line was turned off.

 

No LED Display

LED DisplayAlarm CodeDescription of Alarm/Error
No indicators litThe control circuit is not operating normally