A06B-6134-H303#A Fanuc Servo Amplifier Module A06B6134H303#A A06B-6134-H303#A

FANUC A06B-6134-H303#A | Beta i BiSVPM40/40/40-15 Servo/Spindle Module — Type A, 3-Axis + 15kW, Japan Origin

Part Number: A06B-6134-H303#A

Manufacturer: FANUC Corporation (Japan)

Product Type: Combined Servo / Spindle Amplifier Module

Model: BiSVPM40/40/40-15 (also known as biSVSP3-15i / SVSP 40/40/40-15i)

Type: Type A (software/interface variant) 

Overview

The A06B-6134-H303#A is FANUC's Beta i combined servo and spindle amplifier module — the BiSVPM40/40/40-15 in Type A configuration. It does something that few drive units can: three servo axes and a full spindle drive in a single self-contained module with its own built-in power supply.

No separate PSM, no separate servo modules, no additional cabinet space for drive components.

Everything the small CNC machine tool needs for its motion control fits in one unit.

This was FANUC's first serious attempt at an energy-efficient, integrated servo/spindle solution for small machine tools.

The biSVSP3-15i represented a departure from the modular Alpha architecture — where PSMs, SVMs, and SPMs were always separate components that shared a common DC bus — toward a compact all-in-one approach suitable for the compact machining centres, small turning centres, and entry-level production machines that make up the bulk of the global installed machine tool base.

The Type A designation in the part number suffix identifies the software and interface variant. Different suffix letters (#A, #D, etc.) denote different software configurations for different CNC controller versions or regional specifications.

The #A variant is matched to the controller and servo motor combination for which it was designed — any substitution must maintain the correct suffix for the installation.

Key Specifications

Combined Drive Architecture — Three Servo Axes Plus Spindle

The 40/40/40-15 rating in the BiSVPM designation tells the story concisely.

Three servo channels, each rated at 40 in the Beta i current scale, plus a 15kW spindle section. All four power outputs — three for servo axes, one for the spindle — come from one integrated unit that generates its own DC bus internally.

The three servo channels drive the machine's linear and rotary axes — typically X, Y, and Z for a machining centre, or X, Z, and a third axis for more complex turning or multi-function machines.

These channels are rated for 13A continuous output each, which accommodates FANUC's βi8/3000 and βi12/3000 series servo motors — the compact, high-efficiency motors specified for machines of this class.

The 15kW spindle section drives the machine's spindle motor. A βiLP18/6000 series spindle motor is the typical pairing — a 15kW induction-type spindle motor optimised for high-speed machining in compact machine tool formats.

The integrated spindle drive handles speed control, orientation positioning for automatic tool change, and the constant surface speed modes that precise turning operations require.

The built-in power supply differentiates the Beta i modules from the Alpha series architecture. Alpha drives share a common external PSM.

The Beta i generates its own supply internally from the incoming 200V AC. 

This self-contained power architecture simplifies cabinet wiring and reduces the total component count, making the Beta i ideal for smaller, simpler machine designs where cabinet space and wiring complexity must be minimised.

0i-MC Controller Integration

The A06B-6134-H303#A is designed for integration with FANUC's Series 0i-MC controller — the machining centre variant of the 0i-C platform. The 0i-C was FANUC's compact, entry-level i-series controller, widely adopted by machine builders targeting the small-machine segment.

The alarm and status information is displayed on the module's front-face LED indicators.

A single-digit seven-segment display for the servo/power section and a two-digit display for the spindle section allow the operator and maintenance technician to read alarm codes directly from the module without requiring a laptop or diagnostic tool. Servo alarms appear on the single-digit STATUS 2 display; spindle alarms appear on the two-digit STATUS 1 display.

FAQ

Q1: The module shows a spindle alarm code on the two-digit STATUS 1 display. The servo axes are operating normally. Is the spindle section only at fault?

Separate STATUS 1 (spindle) and STATUS 2 (servo/power) displays allow fault isolation between the spindle and servo functions.

If STATUS 1 shows a spindle alarm while STATUS 2 is normal, the spindle section has a specific fault — typically overcurrent, feedback signal loss, or spindle motor thermal overload. 

Investigate the spindle motor, spindle feedback cable, and motor thermal protection before concluding the module itself has failed.

Q2: The machine needs a replacement module. The available unit has a #D suffix instead of the required #A. Are these interchangeable?

No. The suffix letter denotes the software version and interface configuration. Type A and Type D have different software contents matched to different CNC controller software versions or regional hardware specifications.

Installing a #D in a system that requires #A will result in communication errors or incorrect drive behaviour.

Always match the complete part number including suffix exactly.

Q3: All servo axes and the spindle simultaneously lose power and the module shows alarm codes. What should be investigated first?

Simultaneous loss of all outputs points to the module's internal power supply section. The built-in power supply in the Beta i generates the DC bus for all four output channels. A power supply fault affects all channels at once.

Check the module's input voltage — confirm 200V AC 3-phase is present and within tolerance.

Check for any tripped circuit breakers in the incoming power path.

If the input power is confirmed correct and the module still fails, the internal power supply has faulted.

Q4: The module's internal boards (A20B-2101-0025 and A20B-2101-0012) are listed as not available separately. Can they be sourced?

The manufacturer policy and most specialist service providers' practice is to supply the complete module unit rather than individual boards.

This reflects the practical reality of testing — the boards must be tested together in the complete module to confirm correct operation. 

Individual board sales without the complete module test context do not provide the assurance of functionality.

Sourcing a complete refurbished or exchange module is the standard approach.

Q5: The A06B-6134-H303#A is discontinued. The listed successor is A06B-6164-H333#H580. Is this a drop-in replacement?

The A06B-6164-H333 is from a later Beta i product generation.

Physical and electrical differences between generations mean it is not necessarily a direct drop-in. 

The controller firmware, motor specifications, and connection arrangements may all require verification and possible modification. 

Confirm compatibility with FANUC or a qualified specialist before ordering the successor as a replacement for the original.