Fanuc Alpha Motor Specifications and Fanuc Encoder Part Numbers

Fanuc Motor and Fanuc Spares available for same day dispatch WWW.CNCSPARES.COM

Below is a explanation of the Fanuc Alpha part numbers and how they are broke down and what each individual number is.
You can find at the bottom of the page a part number to match the type of Fanuc encoder fitted to the motor, This will help you if you need to order a replacement encoder.

Fanuc Alpha Motor Model

Models
α1/3000 α2/2000, and α2/3000

A06B-03□□-B△◎◎

□□
71 : Model α1/3000
72 : Model α2/2000
73 : Model α2/3000

△
0 : Taper shaft (standard)
1 : Taper shaft with the brake (2Nm)
5 : Straight shaft
6 : Straight shaft with the brake (2Nm)

◎◎
75 : Pulse coder αA64
77 : Pulse coder αI64
88 : Pulse coder αA1000

The standard shafts used for models α1/3000, α2/2000, and α2/3000 are taper shafts.
Use a taper shaft as far as circumstances, such as the delivery time and maintenance permit.

Models
α3/3000 α6/2000 and α6/3000

A06B-01□□-B△◎◎

□□
23 : Model α3/3000
27 : Model α6/2000
28 : Model α6/3000

△
0 : Taper shaft (standard)
1 : Taper shaft with the brake (8Nm)
5 : Straight shaft
6 : Straight shaft with the brake (8Nm)

◎◎
75 : Pulse coder αA64
77 : Pulse coder αI64
88 : Pulse coder αA1000

The standard shafts used for models α3/3000, α6/2000, and α6/3000 are taper shafts.
Use a taper shaft as far as circumstances, such as the delivery time and maintenance permit.

Models
α 12/2000, α12/3000, α22/1500, α22/2000,
α22/3000, α30/1200,α30/2000, α30/3000,
α40/2000, and α40/2000 (with fan)

A06B-01□□-B△◎◎

□□
42 : Model α12/2000
43 : Model α12/3000
46 : Model α22/1500
47 : Model α22/2000
48 : Model α22/3000
51 : Model α30/1200
52 : Model α30/2000
53 : Model α30/3000
57 : Model α40/2000
58 : Model α40/2000 (with fan)

△
0 : Straight shaft (standard)
1 : Straight shaft with the brake (35Nm)
5 : Taper shaft
6 : Taper shaft with the brake (35Nm)

◎◎
75 : Pulse coder αA64
77 : Pulse coder αI64
88 : Pulse coder αA1000

A straight shaft is fitted as the standard shaft for models α12 to α40.
When early delivery and case–of–maintenance are important, a straight
shaft should be used. For model α40, a tapered shaft is not available.

Models

α65/2000, α100/2000 and α150/2000

A06B-03□□-B△◎◎

□□
31 : Model α65/2000
32 : Model α100/2000
33 ; Model α150/2000

△
0 : Taper shaft (standard)
2 : Taper shaft with the brake (100Nm)

◎◎
75 ; Pulse coder αA64
77 : Pulse coder αI64
88 : Pulse coder αA1000

Models
α300/2000, α400/2000

A06B-013□-B0◎◎

□
7 : Model α300/2000
8 : Model α400/2000

◎◎
75 ; With the pulse coder αA64
77 : With the pulse coder αI64
88 : With the pulse coder αA1000

For these models, a tapered shaft is standard. a straight shaft is not available.
For these models the brake option is not available.

Pulse Coder Part numbers
αA64 A860-0360-T101, A860-0360-V501 and A860-0360-T201
αI64  A860-0365-T101, A860-0365-T101
αA1000 A860-0370-T201, A860-0370-V501

Fanuc Alpha I Motors

A06B-□□□□-B△○▽#◎◎◎◎
□□□□
An ordering specification number are described on the tables below.
* Every combination doesn’t exist.
△
0 : Taper shaft
1 : Straight shaft
2 : Straight shaft with a key groove
3 : Taper shaft with a 24VDC brake
4 : Straight shaft with a 24VDC brake
5 : Straight shaft with a key way and a 24VDC brake
* Do not select “Straight shaft with a key groove” when a large torque or abrupt acceleration rate
is required.
○
0 : Standard
1 : With a fan
2 : With a high-torque brake
3 : With a high-torque brake and a fan
4 : With a strong fan
5 : With a fan
* When “With a high-torque brake” is selected (○ = 2 or 3), specify△ = 3 to 5.
▽
0 : Pulsecoder αiA 1000
1 : Pulsecoder αiI 1000
2 : Pulsecoder αiA 16000
◎◎◎◎
0000 : Standard
0100 : IP67 specification

Pulse Coder part numbers
αiA 1000 A860-2000-T301
αiI 1000 A860-2005-T301
αiA 16000 A860-2001-T301

Fanuc Power Supply A16B-1212-0950

One of the many Fanuc Power Supplies we repair is the A16B-1212-0950 Fanuc Power Supply for the Fanuc OD Control.

Fanuc Power Supply A16B-1212-0950

If you to send this power supply in for repair it’s worth unplugging connectors on the front and disconnecting the power supply from the motherboard.
Once disconnected leave to discharge. Remove the four black screws from the cover and the four screws from the metal case and lift the top off (Disconnecting the fan as you do so). You will see the Fanuc PCB inside which you can lift off if you remove the screws holding it down.

Fanuc PCB for the A16B-1212-0950 Power Supply Unit

It’s worth checking for damage around the top of the PCB the 0340 component at the top is known for breaking up and causing damage.

Fanuc Component likely to blow is the 0340

It’s worth checking the underside of the PCB for damage (marked below with a red ring)

Underneath of the A16B12120950 Fanuc PSU

We can repair these A16B-1212-0950 Fanuc power supplies with a 1-2 day turnaround
If you need them quicker we offer a service exchange service where we can supply you with the unit and you return the faulty unit to us after (we may ask for pictures to double check there is no PCB damage)

We ship world wide our Fanuc Spares are shipped with a warranty

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Fanuc Repairs

We are happy to take on repairs of your Fanuc Parts.

To help us do this please fill in the contact form at the bottom of the page
The details we would need are
The part number of your Fanuc item
The more fault details you could supply is with the better, For example if it is a Fanuc Alpha Drive it is good for us to know if you have a alarm code displayed on the 7 segment display of the drive, any alarm messages on your Fanuc CNC and a bit of history of regarding the fault would be of use.

We have undertaken various repairs, From simple jobs like Fanuc Servo Drive’s that required a quick change of a blown transistor which then was retested on our closed loop Fanuc Test Rig, To jobs like the Fanuc AC Spindle Drive below.

This A06B-6055-H206 Fanuc AC Spindle Drive was sent to us for repair with a reported “Alarm 12 and or Alarm 03 problems”
As we looked into the drive we found it was not just a case of one or two components causing the problem but a multitude of parts.  The below photo contains all the components we found to be faulty. Components are from the base and the A20B-1001-0120 Top Card

The components were replaced and the base and the top card checked. Once satisfied all the broken components had been changed and all circuits checked so no further damage would occur we then tested then drive and left it cycling our Fanuc Spindle Motor before returning to the customer.

If you have need of a repair please contact us

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Fanuc 10 and Fanuc 11 Masterboard Alarms

Fanuc 10 and Fanuc 11 Alarms

Alarms on the Fanuc 10 or Fanuc 11 masterboard are displayed on the 7 segment display on the main PCB card.

Fanuc 10/11 Control Alarm

Display: A
Description: MDI Connection Failure
Remedy: Check fiber optic cable between control and MDI/CRT Unit.

Display: C
Description: MDI Failure
Remedy: Connection Unit for Operators Panel or connecting cable is defective.

Display: F
Description: Connection of connection unit or I/O Cards D1-D3
Remedy: Check fiber optic cable between units, Fault could be from Master PCB, Connection Unit or I/O Board.

Display: H
Description: Connection Failure I/O
Remedy: Connection unit 2 or connecting cable is defective, Check both

Display: c
Description: Transfer error through fiber cable
Remedy: Check cable,  Check power supplies for correct voltages

Display: J
Description: PC or interface converter not functioning
Remedy: Check PC ROM Cassette, PC RAM board

Display: L
Description: Waiting for PC Read
Remedy: Replace PC ROM, PC ROM Cassette or PC Ram Board

Display: b
Description: RAM check error
Remedy: Replace master or Fanuc ROM/RAM card

Display: 8
Description: RAM Check
Remedy: Clear memory and reload parameters, replace masterboard, Check power supply

Display: d
Description: Power Supply ready signal
Remedy: Check Fanuc power supply replace if needed

Display: E
Description: System Error
Remedy: Replace masterboard, ROM PCB, Software Error, Wrong Option Parameters, No message on Fanuc CRT clear the memory

Display: O
Description: IPL Mode

Display: 1
Description: Normal Operation

Display: 4
Description: Bad ACP
Remedy: Replace ACP Daughter Board

Display: Others
Description: System Error
Remedy: Replace Master PCB, NC Software, ROM, or ROM PCB

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Switch Settings for the A06B-6044-Hxx Fanuc AC Spindle Servo Unit

 

Fanuc AC Spindle Card

Switch Settings for the GE Fanuc A06B-6044-Hxx Series of Fanuc Spindle drives, If you purchase one of these cards service exchange you will need to check your switch settings are the same, To do this you can swap the links over using a pair of small pliers . You will also need to swap over your Eprom.

Example of the switches you find on the Fanuc AC Spindle Top Cards

Top Card Switch Settings

S1. Machine Ready Signal (MRDY)
Low (ON) – Machine Ready Signal Used
High (OFF) – Machine Ready Signal NOT Used

S2. Analogue Override
Low (ON) – Analog Override NOT Used
High (OFF) – Analog Override is Used

S3. Analogue Overide
Low (ON) – Analog Override is Used
High (OFF) – Analog Override is NOT Used

S4. Velocity Command Signal
Low (ON) – Use of R01- R12 A/D Commands
High (OFF) – External Analog Voltage Command

S5. Velocity Feedback Rated Command
Low (A) – 6000 RPM
High (B) – 4500 RPM
No Link (Open) – 8000 RPM

S6 and S7 – See  Below

S8. Delay Time Required Until Motor is De-energized
Low (ON) – 0.2 Sec
High (OFF) –  0 Sec

S9. Machine Ready Signal Function
Low (ON) – MCC is On
High (OFF) -MCC is Turned Off

S10. Overcurrent Detection – Specified on unit label
Low (ON) –  Overcurrent Detection is Used
High (OFF) – Overcurrent Detection is NOT used

Setting of S6 and S7
For PCB A20B-0009-0530 to A20B-0009-0539
Model 3. J10. Rom Before 001D. PCB Version Before 12E. S6 On. S7 Off.
Model 3. J10. Rom After 001E. PCB  Version After 14F S6 Off. S7 On.
Model 6. J11. Rom Before 001D. PCB Version Before 12E. S6 On. S7 Off.
Model 6. J11. Rom Before 001E. PCB  Version After 14F S6 Off. S7 On.
Model 8. J02. Rom Before 001F. PCB Version Before 12E. S6 On. S7 On.
Model 8. J02. Rom After 001G. PCB  Version After 14F S6 Off. S7 On.
Model 12. J03. Rom Before 001F. PCB Version Before 12E. S6 On. S7 On.
Model 12. J03. Rom After 001G. PCB  Version After 14F S6 Off. S7 On.

Model 15. J04. Rom Before 001E. PCB Version Before 12E. S6 On. S7 On.
Model 15. J04. Rom After 001F. PCB  Version After 14F S6 Off. S7 On.
Model 18. J05. Rom Before 001B. PCB Version Before 12E. S6 On. S7 On.
Model 18. J05. Rom After 001C. PCB  Version After 14F S6 Off. S7 On.
Model 22. J06. Rom After 001A. PCB  Version After 14F S6 Off. S7 On.

For PCB A20B-1000-0692,A20B-1000-0693
Model 8. J02. Rom Before 001G. PCB Version After 001G. S6 Off. S7 On.
Model 12. J03. Rom Before 001G. PCB Version After 001G. S6 Off. S7 On.
Variable Resisitors –  Whose set values are changeable and may need to be set if you are fitting a new card.

RV1. Adjusts the velocity command voltage level
RV2. Adjusts the velocity command voltage offset
RV3. Set Speed Arrival Level.
RV4. Speed Detection Level.
RV5. Torque Limit Level.
RV9. Finely adjusts the rated speed in normal rotation (SFR)
RV11. Finley adjusts the rated speed in reverse rotation (SRV)
RV13. Adjusts the offset when zero speed is commanded.

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Initializing Bubble Memory Card on the Fanuc 6 Control

If you have one of the following alarms it suggests you have a Error with your Bubble Memory Card

Number	Content
901	No maker error occurs when power is turned on
905	No marker error occurs
906	Many defect loop error occurs

You can try the following to clear the error on the card or replace the card. Follow the instructions below to Initialize the card

For replacement memory cards please visit
https://www.cncspares.com/fanuc-parts/a87l/

With power off remove the bubble memory card  or have the replacement card in front of you.
On the Fanuc card is a silver sticker this has on it the defective loop data and bubble data, Also on the card is the device number

Defective Loop Data of the a87l-0001-0085

 

The number of devices differs according to the memory capacity of the bubble memory card.

Memory Capacity	Device Number
20M(15M)	1
40M	2
80M	1
320M	4

Replace/Insert the memory card back into the Masterboard ready to power the machine up.

As you power the machine back up hold in the [-] and [.] keys and the IL Mode Screen will be displayed. (See the flow chart at the bottom for what this screen will look like)

Press button 4 (Bubble) then option 2 (Write by manual)
You will be shown a screen asking “MAKE BMU SWITCH ON”find the bmu switch on the masterboard and flick to the “ON”position

Once done the screen will change and you will be asked to key in the defective loop data for Device 1,  If you card has more then one device you will be asked to enter them in sequence.
Using the numerical keypad enter the defective loop data number and press “INPUT” once done.
Once all the defective data has been entered press the “START” button to write all the data.

If you have a defective card or a problem with the card now is the time a alarm will be displayed.
If everything is ok a screen will pop up showing the device data and defective loop data, If all correct switch the BMU switch to off and power down the control

Power back up the machine, You should now be bubble alarm message free but you may have other alarms displayed as you need to re-enter your parameters.

 

 

Here is a flow chart explaining the above

 

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Fanuc Beta Servo Drive Alarm List

Fanuc Beta Servo Series

 

Program or setting alarms (PS Alarms)

PMM Screen	Alarm Code	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 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 feedrate (maximum feedrate) is zero	Check the vale of parameter No.043 which indicates the maximum feedrate 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 cause 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

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.

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 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.

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.

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

Specification part number	Model number	Interface type	Application
A06B-6093-H101	SVU-12	PWM	For a feed axis that requires high precision
A06B-6093-H102	SVU-20	PWM	For a feed axis that requires high precision
A06B-6093-H103	SVU-40	PWM	For a feed axis that requires high precision
A06B-6093-H104	SVU-80	PWM	For a feed axis that requires high precision
A06B-6093-H111	SVU-12	FSSB	For a feed axis that requires high precision
A06B-6093-H112	SVU-20	FSSB	For a feed axis that requires high precision
A06B-6093-H113	SVU-40	FSSB	For a feed axis that requires high precision
A06B-6093-H114	SVU-80	FSSB	For a feed axis that requires high precision
A06B-6093-H119	SVU-4	FSSB	For a feed axis that requires high precision
A06B-6093-H151	SVU-12	I/O LINK	For a feed axis that does not require high precision
A06B-6093-H152	SVU-20	I/O LINK	For a feed axis that does not require high precision
A06B-6093-H153	SVU-40	I/O LINK	For a feed axis that does not require high precision
A06B-6093-H154	SVU-80	I/O LINK	For a feed axis that does not require high precision
A06B-6093-H159	SVU-4	I/O LINK	For a feed axis that does not require high precision

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