A06B-6096-H218#H Fanuc Servo Amplifier Module A06B6096H218#H A06B-6096-H218#H

Fanuc A06B-6096-H218#H | Alpha Servo Amplifier Module — SVM2-80S/80S, Dual-Axis, FSSB HRV3, 283–325V / 5.3kW, 12.5A / 230V per Axis

Overview

The Fanuc A06B-6096-H218#H is the SVM2-80S/80S, a dual-axis alpha servo amplifier module with FSSB fiber optic interface and HRV3 current control, delivering 12.5A rated continuous output on each of its L and M channels from a 5.3kW / 283–325V DC bus.

The "S" suffix in the SVM2-80S/80S model designation is the defining feature that separates this module from its standard-width counterpart, the SVM2-80/80 (A06B-6096-H208): the "S" stands for slim, meaning the H218 achieves 12.5A per axis — the same output as the H208 — in a 60mm-wide module rather than the 90mm width of the H208.

This slim format advantage exists because the H218 uses a different, more compact IPM transistor arrangement that packages equivalent switching capability into fewer millimetres of module width.

For machine builders working with space-constrained drive cabinets, or for installations where a standard 90mm-wide SVM2-80/80 simply will not fit alongside other modules in the available rail space, the SVM2-80S/80S provides the same 12.5A dual-axis capability from a 60mm profile.

The trade-off is that the H218 is described by specialists as a "late variant" of the A06B-6096 series — it was introduced after the standard H208 was established in the market, and appears less frequently in the general used-parts supply compared to the H208.

HRV3 is fully implemented in the A06B-6096-H218#H through the appropriate wiring board and control card combination.

The #H suffix, like similar suffixes across the A06B-6096 FSSB series, identifies a specific hardware revision and SRAM configuration. 

When sourcing a replacement, this suffix must be specified — a refundable deposit for SRAM loading may be required if the replacement module carries a different SRAM revision than the original.

Key Specifications

SVM2-80S/80S vs SVM2-80/80 — Slim vs Standard Width

The functional distinction between the SVM2-80S/80S (H218, 60mm) and the SVM2-80/80 (H208, 90mm) is purely physical — both deliver 12.5A per axis from the same 5.3kW / 283–325V bus input.

The slim format achieves the same output capacity through a different internal transistor module design that is physically narrower. 

In installations where both widths could fit, the SVM2-80/80 is more commonly available in the aftermarket due to its longer production history; the SVM2-80S/80S is the correct module where the 90mm width is not an option.

The 12.5A per-axis rating positions both modules above the SVM2-40/40 (H206, 12.5A — same continuous current but a different transistor current class designation) and below the SVM2-80/80 at 18.7A. Wait — both H208 (SVM2-80/80) and H218 (SVM2-80S/80S) are rated at 12.5A per axis; the "80" in both SVM2 model names refers to the transistor class used (80A-class in the standard, 80S for the slim variant), not the exact continuous output current.

The practical output performance for the motor is identical between the two variants at 12.5A per axis.

Compatible Motors and Drive Rail Positioning

The α6/3000 through α22/2000 motor class covers mid-to-heavy alpha servo motors. The α6/2000 (6N·m continuous) and α12/2000 (12N·m) are the typical companions for 12.5A dual-axis modules — both draw rated current within the 12.5A envelope during continuous cutting operations.

At the upper end, the α22/2000 (22N·m) can be driven by a 12.5A module at reduced continuous torque below its rated capacity; full α22 rated torque requires the SVM2-80/80 at 18.7A.

In a drive cabinet with 16i or 18i controls, the SVM2-80S/80S's 60mm width allows it to fit in rail positions that a standard 90mm module cannot, enabling denser packing of dual-axis capability.

For machines where two mid-to-heavy axes must be served but the available rail space between a spindle module and another servo module is 60mm or less, the H218 is the only direct solution within the alpha FSSB series.

FAQ

Q1: The #H suffix requires a SRAM deposit at some service providers — what does the SRAM contain?

The SRAM (static RAM) on the control card stores servo-specific software parameters that define the module's communication behaviour with the CNC, the available servo algorithm options, and the supported spindle or special function configurations.

The #H suffix identifies a specific SRAM revision. When a replacement module carries a different SRAM revision than the original, the service provider loads the correct SRAM content before the module ships.

Some providers require a refundable deposit for this service, returned when the faulty core module is received back. Specifying the full part number including #H when ordering is the simplest way to ensure the correct SRAM version is preloaded.

Q2: Can the A06B-6096-H218#H replace the A06B-6096-H208 (SVM2-80/80) in a machine?

Functionally yes, if the rail space accommodates both widths. Both deliver 12.5A per axis from the same DC bus input. The H218 at 60mm would physically fit in any installation that accepts the H208's 90mm width.

The reverse — fitting an H208 where only 60mm is available — is not possible. Servo parameters for the installed motor models must be correctly configured on the CNC for either module. The FSSB ring position and fiber connectors are the same type on both modules.

Q3: What alarm codes are specific to the A06B-6096-H218#H?

Alarm 368 and 369 are FSSB-specific alarms noted in the B-65165E manual for this module, indicating FSSB communication fault conditions. Standard channel alarms apply: Alarm 8 (HCL, L-axis overcurrent or IPM) and Alarm 9 (HCM, M-axis overcurrent or IPM).

The fiber optic disconnect alarms are Alarm L (COP10A disconnect) and Alarm U (COP10B disconnect).

The standard diagnostic for Alarm 8 or 9 is to disconnect the affected motor's power cables and test motor insulation resistance to protective earth before concluding the module has failed.

Q4: The SVM2-80S/80S is described as a "late variant" — is it harder to source than the H208?

Yes, in the general aftermarket. The SVM2-80/80 (H208) was the primary high-current dual-axis module throughout most of the alpha FSSB series' production life, resulting in a much larger pool of used and refurbished units.

The SVM2-80S/80S (H218) was introduced later and is found in fewer machine models.

This smaller installed base means fewer cores are available for exchange programs, and repair-only service is sometimes the only available option when exchange stock is absent. Planning ahead and securing a tested spare when one becomes available is advisable for machines using the H218.

Q5: What is the maximum motor size the SVM2-80S/80S can drive, and when would a larger module be needed?

At 12.5A continuous per axis, the SVM2-80S/80S fully supports α6/3000, α12/2000, and α22/2000 motors operating at or below their rated current within the 12.5A output ceiling. The α22/2000 at 12.5A continuous operates at reduced maximum torque compared to its full rated capability.

For machines where the α22 must deliver its full 22N·m continuous rated torque (which requires 18.7A continuous), the SVM2-80/80 (H208) at 18.7A is the correct specification. Motors in the α30 class and above exceed 12.5A and require the SVM1-130 class at 35A or the full-size SVM2-80/80 at 18.7A, depending on the axis count.