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Part Details


FANUC parts >> A06B-6079-H204 SERVO AMP MODULE ALPHA-12/40


Part Number: A06B-6079-H204

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For parts repair or replacement, please fill out the form below and we’ll get back to you as soon as possible.

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Exchange Price


Non return of a repairable exchange part within 15 days will result in an additional invoice for the above exchange price.

Repair Price


Turnaround times for standard repairs are based on workload. Please contact Tri Star CNC services for emergency repair requirements.
Please contact Tri Star CNC Services to place an order.


The A06B-6079-H204 alpha-12/40 servo amp module provides power to the servo motor in FANUC CNC machines. Tri Star CNC provides part repair services for a variety of CNC machine components including these servo amplifier modules. We can fully repair broken parts back to working like new. Our experienced FANUC servo amplifier module repair technicians provide efficient and reliable repair services, so your CNC machine has significantly decreased downtime. To receive CNC machine component repair services, simply ship your damaged part to Tri Star CNC and we will inspect the part to determine the cause of failure. Once we determine the cause, we begin work immediately fix the component. If your servo amp module only needs to be cleaned, we will only charge a small service fee. For CNC machine parts which are beyond repair, we can offer replacement parts on an exchange basis.

Keep your CNC machine running longer by frequently inspecting the machine and components for defects. One broken servo amplifier module can cause total machine failure, so it is important to inspect the entire machine and replace parts regularly. Smaller components like the A06B-6079-H204 alpha-12/40 servo amp module are prone to failure. Trust Tri Star CNC to provide reliable repairs to keep your machine running smoothly.

Alarm & error codes

Tri Star CNC Services can provide you with more information on the meaning of your alarms. We will provide a fault diagnosis and a dependable 1-year warranty if you require FANUC servo repairs - or a new FANUC servo amplifier module or FANUC DC servo unit. Give us a call - phone support is FREE and we'll clearly define your options for parts repair or replacement:

Alarm CodeDescription
0 Unit is not ready.
- (dash) Unit is not ready and could be related to the unit or machine side cause.
1 DC voltage of the main circuit power supply is abnormally high.
2 Inverter: control power supply undervoltage.
5 Average regenerative discharge energy is too high (too frequent acceleration/deceleration)–The transformer overheats.
6 Inverter:overheat
8 Abnormal current alarm (L axis)
8. (dot) Inverter: IPM alarm (L axis)
9 Abnormal current alarm (M axis)
9. (dot) Inverter: IPM alarm (M axis)
A Abnormal current alarm (N axis)
A. (dot) Inverter: IPM alarm (N axis)
b Abnormally high current in the L–and M–axis motors
d Abnormal current alarm (N axis)
L FSSB communication error
P Communication error between amplifier and module
U FSSB communication error




Contact our FANUC CNC repair specialists at Tri Star CNC for exchange or repair of the A06B-6079-H204 alpha-12/40 servo amp module.

Parts & Repair Warranty Information

Exchange parts and repaired parts include a 1-year warranty. Tri Star CNC, LLC warrants the COMPLETE ASSEMBLY REPAIR – not just the parts and labor.

Get more details on our warranty and please contact us for further support.

Contact Us

For parts repair or replacement, please fill out the form below and we’ll get back to you as soon as possible.

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