FANUC SP9014 indicates that the spindle amplifier identification data is not compatible with the series or edition of the spindle control software. The spindle amplifier displays alarm 14.
In the FANUC Series 0i-D/0i Mate-D maintenance manual, this condition is described as the use of a spindle amplifier that is not registered in the spindle software program. The stated remedy is to upgrade the spindle software. In the FANUC Servo Amplifier αi Series maintenance manual, alarm 14 is described as inconsistent amplifier ID data, and the stated action is to replace the abnormal spindle amplifier.
These instructions apply to different FANUC products and manual scopes. The correct repair therefore depends on the exact CNC, spindle amplifier model, software series, software edition, and service history.
| Alarm location | Display | Meaning |
|---|---|---|
| CNC | SP9014 | Serial spindle software or amplifier ID mismatch |
| Spindle amplifier | 14 | Amplifier ID is not supported by or consistent with the spindle software |
| Main check area | Compatibility | CNC spindle software and spindle amplifier identification data |
For the surrounding spindle alarm numbers, see the FANUC Serial Spindle Alarm Codes SP9001–SP9033.
Important: Use the Procedure for the Exact FANUC Series
FANUC documentation gives two closely related descriptions of alarm 14:
| Applicable FANUC document | Alarm description | Stated action |
| Series 0i-D/0i Mate-D Maintenance Manual B-64305EN/03 | A spindle amplifier not registered in the spindle software program is being used | Upgrade the spindle software program |
| Servo Amplifier αi Series Maintenance Manual B-65285EN/04 | Amplifier ID data is inconsistent with the software series and edition | Replace the spindle amplifier |
Do not assume that every SP9014 alarm requires only a software update or only an amplifier replacement. First identify which manual applies to the installed equipment.
1. Confirm the Alarm and Record the System Configuration
Before changing software or hardware, record:
- The complete CNC alarm number: SP9014
- The spindle amplifier display: 14
- The exact FANUC CNC series and model
- The complete spindle amplifier model and suffix
- The spindle software series and edition
- Whether the alarm appeared after amplifier replacement, CNC data recovery, a software change, or other maintenance
On the Series 0i-D/0i Mate-D system described in B-64305EN/03, the spindle amplifier STATUS display shows the last two digits of the spindle software series for approximately one second after control power is turned on. It then shows the software version for approximately one second. Record this information only according to the display procedure in the applicable FANUC manual.
The event that immediately preceded the alarm is important. If SP9014 first appeared after a spindle amplifier was replaced, compatibility should be checked before treating the replacement amplifier as a direct equivalent. If it appeared after CNC software or spindle data work, confirm that the correct spindle software was installed or restored.
2. Verify Spindle Amplifier and Software Compatibility
Compare the complete spindle amplifier identification with the CNC and spindle software specification. A replacement amplifier may be mechanically installable and electrically connected but still not be registered in the installed spindle software.
Confirm the following using the applicable FANUC documentation:
- The complete spindle amplifier model, including all suffixes
- The amplifier series and hardware specification
- The spindle software series and edition
- Whether that amplifier identification is supported by the installed software
Do not select a replacement only by the base model number, connector layout, power rating, or physical appearance. The amplifier ID and software support must also match.
If the installed amplifier is not supported by the spindle software, follow the software remedy specified for the exact CNC series or install the correct compatible spindle amplifier.
3. Upgrade or Restore the Correct Spindle Software When Required
For FANUC Series 0i-D/0i Mate-D systems covered by B-64305EN/03, the official remedy for SP9014 is to upgrade the spindle software program because the installed amplifier is not registered in that software.
If maintenance records confirm that spindle software or related spindle data was accidentally erased, damaged, or incorrectly restored, have qualified personnel recover or update it using the correct FANUC software package for the CNC and amplifier combination.
SP9014 alone does not prove that spindle data was accidentally deleted. It confirms a software-support or amplifier-ID inconsistency. Before performing a software recovery, verify the CNC model, amplifier model, currently installed software series and edition, and the correct target software.
Do not install an arbitrary spindle software version. Software loading and recovery should be carried out only by qualified personnel with the applicable FANUC procedure and the correct software for the machine configuration.
4. Test or Replace the Spindle Amplifier When the Software Is Correct
For αi Series spindle amplifiers covered by FANUC Maintenance Manual B-65285EN/04, alarm code 14 means that amplifier ID data inconsistent with the software series and edition was detected. The troubleshooting action in that manual is to replace the spindle amplifier.
If the correct spindle software is installed and the amplifier should be supported, professionally test the spindle amplifier. Replace it when the applicable manual identifies it as abnormal or when its ID data is confirmed to be faulty.
Use an exact compatible replacement. Before installation, verify the complete part number, suffix, hardware specification, and software compatibility. After installation, power up the system according to the applicable FANUC procedure and confirm that alarm 14 no longer appears.
Browse the available FANUC servo, spindle, and power drives when a compatible replacement amplifier is required.
Difference Between Alarm 14 and Alarm 17
FANUC alarm codes 14 and 17 both involve amplifier ID data, but they are not the same condition:
| Amplifier alarm | FANUC description | Main diagnostic direction |
| 14 | Amplifier ID data is inconsistent with the spindle software series or edition | Check software support and amplifier compatibility; follow the applicable software-update or amplifier-replacement procedure |
| 17 | An error was detected in the amplifier ID data itself | Check control-board installation and replace the spindle amplifier when required by the applicable manual |
Always use the number actually shown on the spindle amplifier. Do not diagnose SP9014 as alarm 17 unless the amplifier display confirms 17.
FANUC SP9014 Diagnostic Table
| Finding | Main interpretation | Recommended action |
| SP9014 appeared immediately after amplifier replacement | The replacement amplifier may not be supported by the installed spindle software | Verify the complete amplifier ID and software compatibility |
| Installed amplifier is not registered in the spindle software | The software does not support that amplifier | Upgrade the spindle software according to the applicable FANUC CNC manual or use a supported amplifier |
| Alarm appeared after software or spindle-data work | Incorrect, missing, or unsupported software data may be present | Verify the installed software series and edition; restore or update the correct software when confirmed necessary |
| Software and amplifier specifications should match, but alarm 14 remains | Amplifier ID data or amplifier hardware may be abnormal | Professionally test and replace the spindle amplifier as specified by the applicable manual |
| Exact CNC, amplifier, or software information is unknown | The correct remedy cannot be selected safely | Record all identification data and consult the applicable FANUC documentation before making changes |
Recommended Troubleshooting Order
- Confirm SP9014 on the CNC and alarm 14 on the spindle amplifier.
- Record the exact CNC model, spindle amplifier model and suffix, and spindle software series and edition.
- Determine whether the alarm began after amplifier replacement, software work, or spindle-data recovery.
- Check whether the installed amplifier is registered in and supported by the current spindle software.
- For a Series 0i-D/0i Mate-D configuration covered by B-64305EN/03, upgrade or correctly restore the spindle software when required.
- If the applicable amplifier manual identifies the spindle amplifier as abnormal, test and replace it with an exact compatible unit.
- Retest the machine using the commissioning procedure for the specific FANUC CNC and spindle system.
SP9014 is a compatibility and identification alarm. FANUC documentation does not direct technicians to begin with motor insulation, power cables, spindle sensors, mechanical load, cooling, or PMC switching sequence. Avoid unrelated adjustments unless another alarm or test result provides evidence for them.
Technical References
- FANUC Series 0i-D/0i Mate-D Maintenance Manual, B-64305EN/03, SP9014
- FANUC AC Servo Motor αis/αi Series, AC Spindle Motor αi Series, Servo Amplifier αi Series Maintenance Manual, B-65285EN/04, Alarm Code 14
Always use the manual edition that applies to the exact CNC, spindle amplifier, software, and machine configuration.
Need Help With FANUC SP9014 Alarm?
REACO CNC provides independent compatibility checks, testing, repair, and replacement support for FANUC spindle amplifiers. Send us the CNC alarm screen, amplifier alarm display, complete CNC model, exact spindle amplifier model and suffix, spindle software series and edition, and details of any recent replacement or software work.
Visit the FANUC Technical Support Center for more FANUC alarm guides, or contact REACO CNC for assistance.
Reference Source: Beijing FANUC. This article is based on FANUC technical documentation. The applicable remedy depends on the exact CNC series, spindle amplifier, software series and edition, and machine configuration.
