A06B-6096-H116 FANUC AC Servo Amplifier Unit A06B6096H116 A06B-6096-H116

Fanuc A06B-6096-H116 | Alpha Servo Amplifier Module — SVM1-130S, Single-Axis, FSSB HRV3, 283–325V / 7.5kW, 35A / 230V Output

Overview

The Fanuc A06B-6096-H116 is the SVM1-130S, a single-axis high-current alpha servo amplifier module from Fanuc's A06B-6096 FSSB series, rated at 35A continuous output from a 7.5kW DC bus input.

Its FSSB fiber optic interface with HRV3 (High Response Vector 3) control capability places it firmly in the modern alpha servo module generation — compatible with Fanuc's 30i/31i/32i CNC controls and the full range of i-series controls that use FSSB as their servo communication bus.

The SVM1-130S designation puts this module between the standard SVM1-130 (A06B-6096-H106, 52.2A) and the smaller SVM1-80 (A06B-6096-H105, 18.7A) in Fanuc's current classification.

At 35A rated output, the H116 is specifically sized for the αM30/3000 motor — a mid-to-large alpha servo motor producing continuous torque in the 30N·m class at 3000rpm rated speed.

This motor and drive pairing is typically found on heavy-duty axis drives of mid-to-large CNC machine tools: main saddle axes on large vertical machining centres, X-axis carriage drives on heavy horizontal machining centres, and similar applications where axis mass and cutting force demand sustained current above the 18.7A capability of the SVM1-80.

The compact 60mm module width is notable for a 35A output module.

This is achieved through a 150A-class IPM (Intelligent Power Module) transistor — a single high-current IPM device that integrates the three-phase bridge, gate drivers, and protection circuits in one package, fitting within the 60mm module format.

The external heatsink at the rear of the module provides the thermal dissipation surface for this IPM's heat output at 35A, supplemented by the module's internal fan.

Key Specifications

SVM1-130S vs SVM1-130 — Why Two 130-Class Modules?

The A06B-6096 FSSB series contains both the SVM1-130 (H106, 52.2A) and the SVM1-130S (H116, 35A) — two modules with the "130" designation but different output currents. This reflects Fanuc's current class numbering convention, where "130" identifies a transistor internal rating class rather than the exact output current in amps.

The H116 at 35A is positioned for mid-heavy-duty alpha motors (αM30), while the H106 at 52.2A covers the heavier αM40 or α40-class motors.

Both use 150A-class IPM transistors but are parameterised and rated differently to match their respective motor classes.

When replacing a failed SVM1-130S, confirming the H116 part number (not H106) is essential — the two modules are electrically distinct despite sharing the "130" class designation.

The control card variant (A20B-2100-054x vs the H106's card) differs, and motor parameter configurations are motor-class-specific.

HRV3 Interface — Current Control at Higher Bandwidth

The HRV3 designation in the A06B-6096-H116's interface capability identifies the third generation of Fanuc's High Response Vector current control algorithm.

Each HRV generation reduced the current regulation cycle time and improved the suppression of torque ripple at the motor shaft. HRV3, implemented in the 30i/31i/32i generation controls and compatible with i-series controls that have the HRV3 software option, provides tighter current waveform quality at the motor terminal than HRV1 or HRV2 — translating to lower torque ripple at machining speeds and better surface finish on precision contouring operations.

For the αM30/3000 motor driving a heavy machine axis, HRV3's improved current regulation is practically significant during contouring: the reduction in torque ripple at the control loop's update rate produces smoother velocity control through corners and arc segments, which directly affects the quality of the machined contour profile.

FAQ

Q1: What is the difference between the SVM1-130S (H116) and SVM1-130 (H106) in the A06B-6096 FSSB series?

Both share the "130" class transistor module designation, but the H116 (SVM1-130S) is rated at 35A output and sized for αM30-class motors, while the H106 (SVM1-130) is rated at 52.2A and sized for the heavier α40-class motors. Control cards and motor parameters differ between them.

Never substitute one for the other without verifying the installed motor model requires the specific current rating and that the replacement control card is compatible with the existing parameter set.

Q2: The dimensions are 380 × 60 × 307mm — how does the external heatsink affect cabinet installation?

The 307mm depth includes the external heatsink that projects from the rear of the module. In standard alpha amplifier cabinet installations, the heatsink passes through the cabinet rear panel into the heatsink cooling duct or free-air cooling space.

The 60mm width is narrow and fits the standard alpha module rail pitch. Cabinet panels must accommodate 307mm of depth behind the front mounting surface, with the heatsink's external dimension plus clearance for the air passage.

Blocking the heatsink's cooling airflow produces thermal overload alarms.

Q3: The module is rated with HRV3 — what CNC controls can use this capability?

HRV3 is available on FANUC 30i-B/31i-B/32i-B controls and later, and on selected 15i/16i/18i/21i controls with the HRV3 software option installed. On controls without the HRV3 option, the module operates at the lower HRV level supported by the control (HRV1 or HRV2), with correspondingly lower current control bandwidth.

The module itself is compatible with all FSSB-capable i-series controls regardless of HRV level — HRV3 is a software capability enabled at the CNC level, not a hardware incompatibility.

Q4: What are the typical machines and axis applications for the A06B-6096-H116?

The αM30/3000 motor and SVM1-130S pairing is found on heavy CNC machining centre axes — X-axis carriage drives on large horizontal machining centres, Y-axis column drives on large VMCs with heavy cross-rail construction, and B-axis trunnion drives on five-axis machining centres where the rotary axis carries substantial workpiece mass.

It also appears on large CNC grinding machine table drives and heavy-duty CNC boring mill axis drives where the 35A sustained current is required for full-load operation.

Q5: What alarm Alarms 368, 369, and 466 indicate on the A06B-6096-H116?

Alarm 368 and 369 are FSSB-related alarms specific to the SVM1-130S, indicating communication errors or hardware faults in the FSSB interface circuitry.

These alarms often point to fiber optic connector contamination or cable damage — clean and inspect the COP10A/COP10B connectors first.

Alarm 466 is a high-current alarm on the L axis, typically triggered by motor cable insulation failure. 

The standard sequence for Alarm 466 is to disconnect the motor power cables and check winding-to-earth insulation resistance.

If the alarm clears with cables disconnected, the motor or cable is the fault source. These alarm codes are referenced in the B-65165E manual applicable to this module.