Fanuc beta drives services offered include testing, repair and
fanuc service exchange, listed below beta drives we have in stock or offer services on like repairs and full testing we have 15 models of the
fanuc beta drives in stock that are listed below to name a few fanuc beta drives in stock at pennine,
Fanuc Beta Drives Series digital AC Servo systems were available in a range of sizes for use with GE Fanuc CNC control systems, Power Mates, also Motion control systems. Fanuc Beta Series Servo systems offered high reliability and performance, Alarm and fault codes listed below
Fanuc Beta ISV Drives
Fanuc Drives Index - Fanuc Beta Motors - Fanuc Exchange Parts
Fanuc Beta servo drive alarm code list
Program or setting Fanuc alarms (PS Alarms)
| PMM Screen |
Alarm Code |
Fanuc Fault |
Remedy |
| – |
– |
Not ready |
Drive is good |
| – |
– |
No LED LIT
The control circuit is not operating normally |
Check the 24–VDC control supply voltage.
If the voltage is low, increase the voltage to
an appropriate level.
Check whether a fuse in the servo amplifier
unit has blown. If a blown fuse is found,
replace it, following the procedure described
in Part 4 “Maintenance of Servo Amplifier
Unit.”
Replace the servo amplifier.The control circuit is not operating normally. |
| – |
0 |
Drive ready |
Drive is good |
| – |
0 (Blinking) |
Command been executed |
Fanuc Amplifier is good |
| – |
P (Blinking) |
Parameters have been loaded |
Drive is good |
| 000 |
U |
A Parameter that requires power-down has been specified |
Turn the power off then back on |
| 011 |
F |
The specified feedrate is zero |
Check the feedrate parameter specified with a function code |
| 013 |
F |
The specified feed rate (maximum feed rate) is zero |
Check the vale of parameter No.043 which indicates the maximum feed rate that can be specified |
| 070 |
|- |
More than 32 blocks have been registered for a buffering operation |
Reduce the number of registered blocks to 32 |
| 085 |
h |
Input from the reader/punch interface caused an overrun, parity or framing error |
Correct the baud rate of the input/output unit (always 4800) or other settings |
| 086 |
h |
Input from the reader/punch interface or the like includes an input/output unit operation ready signal (DR) that is set to off |
Turn the reader/punch on. Check the cable connection |
| 087 |
h |
After input from the reader/punch stops, character input does not stop even though ten characters have been input |
Check cable connection |
| 090 |
9 |
Reference position setting cannot be executed normally |
Move the tool in the direction of reference position return in jog mode at a speed that causes the servo position to exceed 128, Then specify another reference position setting |
| 093 |
u |
A first to third reference position return cannot be executed because the reference position has not yet been established |
Set the reference position |
| 224 |
u |
The reference position has not yet been established. This occurs only when the ZRTN bit of parameter No.001 is set to 0 |
Set the reference position |
| 250 |
7 |
Input data 1 is invalid |
Check input data 1, Specified with a function code |
| 251 |
7 |
Input data 2 is invalid |
Check input data 2, Specified with a function code |
| 251 |
7 |
A function code or mode is invalid |
Check the command code |
| 255 |
n |
Operation cannot be activated because an invalid mode is specified or because block execution is in progress |
Check the mode, Check whether a block is been executed |
| 290 |
_ |
The interface switch signal (DRC) was switched during block execution |
Switch the signal after block execution stops |
| 291 |
4 |
Speed of a axes movement specified by a external pulse has exceeded the upper limit. This occurs when the EPEXA bit of parameter No001 is set to 1 |
Check the speed specified by the external pulse. Check the magnification of the external pulse (parameters No.062 and 063). |
| 292 |
7 |
A checksum error for the battery-powered memory was detected |
Parameters are cleared. Set the parameters again. If this alarm subsequently recurs replace the unit |
Fanuc Pulse Coder Alarms
| PMM Screen |
Alarm Code |
Fault |
Remedy |
| 300 |
5 |
A communication error (DTER) for the serial pulse coder was detected |
Check the cable. Pulsecoder defective, Turn the power off if the alarm recurs when the power is reapplied replace the pulse coder. |
| 301 |
5 |
A communication error (CRCER) for the serial pulse coder was detected |
Check the continuity of the signal cable. If the
cable is normal, the pulse coder or servo amplifier
unit may be defective. This error can also be
caused by external noise. |
| 302 |
5 |
A communication error (STBER) for the serial pulse coder was detected |
Check the continuity of the signal cable. If the cable is normal, the pulse coder or servo amplifier unit may be defective. This error can also be caused by external noise. |
| 303 |
6 |
An LED disconnection (LDAL) was detected in the serial pulse coder |
Turn the power off. If this alarm recurs when the
power is reapplied, replace the motor. |
| 304 |
6 |
A mispulse alarm (PMAL) for the serial pulse coder was detected |
Turn the power off. If this alarm recurs when the
power is reapplied, replace the motor. |
| 305 |
6 |
A miscount alarm (CMAL) fir the serial pulse coder was detected |
Turn the power off. If the alarm recurs when the
power is re–applied, replace the motor.
If the alarm does not recur, restart the operation
from reference position return. |
| 306 |
3 |
The motor has overheated (OHAL) |
This alarm is issued when the motor has overheated,
causing the thermostat to trip.
Possible causes include an excessively high
ambient temperature and excessively strict
operating conditions. Check the actual cause.
If it occurs again when the motor is cooled, the
motor or servo amplifier may have failed. Replace
the faulty motor or servo amplifier. |
| 308 |
6 |
A soft phase alarm (SPHAL) was detected |
Turn the power off. This alarm may be caused
by noise. |
| 319 |
11 |
When the absolute pulse coder is used, the motor has not yet rotated through more than one turn after the first power up |
Cause the motor to rotate through more than
one turn in jog feed mode, then turn the power
off then back on. |
| 350 |
2 |
The battery voltage of the absolute pulse coder is low |
Replace the battery.
Restart the operation from reference position
return |
| 351 |
1 |
The battery voltage of the absolute pulse coder is low (warning) |
Replace the battery. |
| 401 |
, |
A communication error was detected in the serial
pulse coder. |
Check the continuity of the pulse coder signal
cable. If the cable is normal, the pulse coder or
servo amplifier unit may be defective. This error
can also be caused by external noise. |
Fanuc Servo Alarms
| PMM Screen |
Alarm Code |
Fault |
Remedy |
| 400 |
4 |
The servo motor has overheated |
The motor operation condition may be too severe.
Check the operation condition |
| 403 |
o |
The cooling fins have overheated |
The load on the motor may be too high. Re–examine the load conditions. |
| 404 |
J |
The regenerative discharge unit has overheated |
This alarm is issued when the average regenerative
discharge energy is too high (when the
acceleration/deceleration frequency is too high,
for example) |
| 405 |
n |
Reference position return could not be
executed correctly. |
Re–execute reference position return. 405 If a value in the range of 4 to 96 is set for parameter No. 032 (CMR), an alarm may be issued. In this case, prevent an alarm from being issued by setting N405 (bit 4 of parameter No. 001) to “1” |
| 410 |
r |
The servo position error in the stop state is larger than the value specified in parameter No.110 |
Determine the mechanical cause of the large
position error. If no mechanical cause is found,
specify a larger value for the parameter |
| 411 |
r |
The servo position error during movement is
larger than the value specified in parameter
No.182. |
Determine the mechanical cause of the large
position error. If no mechanical cause is found,
apply any of the following countermeasures:
Specify a larger value for the parameter.
Specify a lower feedrate.
Increase the time constants. |
| 412 |
c |
An overcurrent alarm or IPM alarm is issued |
An overcurrent alarm or IPM alarm is issued. |
| 413 |
y |
A DC link overvoltage alarm is issued |
This alarm is issued when the DC voltage of the main circuit power is too high. |
| 414 |
P |
A DC link low voltage alarm is issued. |
This alarm is issued when the DC voltage of the main circuit power is too low. |
| 417 |
A |
A parameter has been specified incorrectly. |
Check the following parameters: No.30: Is the specified motor type correct? No.31: Is the specified direction of rotation of the motor correct? No.106: Is the denominator of the number of pulses per single revolution of the motor 0? No.180: Is the specified reference counter capacity 0 or a negative value? |
| 423 |
t |
The specified speed exceeds 32767000 detection
units per second. |
Re–examine the CMR and speed settings. |
| 425 |
C |
The cooling fan has stopped |
This Fanuc alarm is issued when the fan motor built into the servo amplifier unit has failed. |
| 446 |
R |
The external pulse input line is disconnected |
Connect the external pulse input signal correctly |
| 447 |
r |
The velocity deviation is too high (velocity control) |
Check the actual velocity. |
Fanuc Overtravel Alarms
| PMM Screen |
Alarm Code |
Fault |
Remedy |
| 500 |
H |
The positive stroke limit has been exceeded. |
Check whether *+OT and *–OT are connected correctly. Check whether a correct move command is specified. Move the tool in the opposite direction in jog mode, then perform a reset. |
| 501 |
H |
The negative stroke limit has been exceeded. |
Check whether *+OT and *–OT are connected correctly. Check whether a correct move command is specified. Move the tool in the opposite direction in jog mode, then perform a reset. |
| 510 |
H |
The positive soft stroke limit has been exceeded. |
Check whether appropriate values have been specified for parameters No.142 and 143. Check whether a valid move command is specified. Move the tool in the opposite direction in jog mode, then perform a reset. |
| 511 |
H |
The negative soft stroke limit has been exceeded. |
Check whether appropriate values have been specified for parameters No.142 and 143. Check whether a valid move command is specified. Move the tool in the opposite direction in jog mode, then perform a reset. |
Fanuc System Alarms
| PMM Screen |
Alarm Code |
Fault |
Remedy |
| – |
E |
A error was detected in the RAM write/read test at power up |
Replace Fanuc servo amp |
| – |
8 |
A error was detected in the data collation check the battery powered memory |
Turn the power off and back on. If alarm recurs replace servo amp |
| – |
9 |
A data transfer alarm for the battery powered memory has been issued |
Replace the servo amp |
| – |
d |
A Watchdog alarm was issue |
Turn the power off and back on. If alarm recurs replace servo amp |
| – |
b |
A checksum alarm for the control software Rom is issued |
Replace the servo amp |
| – |
. |
A error was detected in the control circuit |
Replace the servo amp |
| – |
L |
A I/O link error occured |
Check all devices are on |
Fanuc Beta Servo drives have 3 types of interface these are FSB ( fiber optic ) JS interface and I/O Link interface we can run all 3 types under closed loop using Fanuc 18I-MB, 21A and 18-TC Control Rigs
Other models A06B-6093-H174 A06B-6093-H173 A06B-6093-H161 A06B-6093-H162
A06B-6093-H101
A06B-6093-H102