A06B-6097-H206 Fanuc Servo Amplifier Module A06B6097H206 A06B-6097-H206

Fanuc A06B-6097-H206 | Alpha Servo Amplifier Module — SVM2-60/60HV, Dual-Axis, FSSB, 566–651V / 12kW, 16.3A / 460V per Axis, High-Voltage 400V Series

Overview

The Fanuc A06B-6097-H206 is the SVM2-60/60HV, a dual-axis alpha servo amplifier module from Fanuc's A06B-6097 high-voltage FSSB series, delivering 16.3A rated continuous output on each of its L and M axis channels from a 566–651V DC bus at 12kW combined input. The "HV" designation — high voltage — is the most important thing to understand about this module: it operates from a 400V three-phase supply infrastructure, drawing 566–651V on the DC bus (compared to the 283–325V of the standard 200V alpha series), and delivers 460V maximum output to the motors it drives, rather than the 230V output of the standard series modules.

This high-voltage architecture exists specifically for the alpha HV servo motor series — α6HV, α12HV, α22HV, α30HV, α40HV — which are the 400V-rated variants of the alpha servo motor family.

A standard 200V alpha module cannot drive an HV motor; a HV module cannot drive a standard 200V alpha motor.

The two series are electrically incompatible, and machines designed for HV operation use HV motors, HV PSM, and HV SVM modules throughout — the only common element with the standard series is the FSSB fiber optic communication interface, which operates at the same signal level regardless of the power series.

The FSSB interface connects the A06B-6097-H206 to the 15i/16i/18i/21i i-series CNC controls in the same ring topology as the 200V series modules, with the same fiber optic connectors (COP10A/COP10B) and the same ring-chain architecture.

The CNC and FSSB operate at low-voltage signal levels regardless of the power series — HV drive system installation requires the correct HV PSM and HV SVM modules in the power stage, but the CNC and FSSB hardware is the same as in a 200V system.

Key Specifications

High-Voltage Series — Why 400V Alpha Exists

The rationale for the HV alpha series is power efficiency at high motor ratings.

At 200V, a motor drawing 52A continuous to produce 40N·m of torque demands thick, high-current motor cables and large-cross-section bus bars in the drive cabinet. At 400V, the same mechanical power is delivered at half the current — 26A — allowing lighter motor cables, smaller connector hardware, and reduced I²R losses in the wiring.

This advantage becomes significant on large machine tools with long motor-to-drive cable runs, and on machines where multiple heavy axes would require impractically large cable bundles at 200V.

The α12/3000HV motor — Fanuc's 12N·m HV series motor at 3000rpm — draws approximately 16.3A from the SVM2-60/60HV at full rated torque.

This is the standard pairing that the H206 is designed around. The α22/2000HV at 22N·m continuous also draws within the 16.3A envelope at its rated operating point.

Both motors therefore operate comfortably within the H206's continuous current rating, with the IPM modules' peak current capacity handling the acceleration transients.

FSSB HV Drive Configuration — The 400V Stack

A machine using the A06B-6097-H206 requires a matching alpha HV PSM (from the A06B-6087 HV series) to generate the 566–651V DC bus.

The HV PSM rectifies the three-phase 380–480V AC input to produce the HV DC bus. All HV SVM modules in the installation draw from this bus through the same bus bar connection system as the standard series — the physical bus connection hardware is similar, but the voltage is higher and appropriate insulation and clearance standards for HV systems must be maintained.

The A06B-6097-H206's 90mm module width reflects the higher power level of the HV dual-axis configuration: the larger IPM modules required for 16.3A at 460V output occupy more physical space than their 200V counterparts.

The external heatsink at the module's rear dissipates the thermal energy from both channels operating simultaneously.

FAQ

Q1: Can a standard 200V alpha module (A06B-6079 or A06B-6096) replace the A06B-6097-H206 if the HV module is unavailable?

No. The electrical voltage levels are entirely different — the 200V standard series operates on a 283–325V DC bus and outputs 230V maximum; the HV series operates on 566–651V DC bus and outputs 460V.

The HV motors connected to an H206 require 400V-class output voltage; connecting a 200V module to these motors would result in severe under-driving of the motor and likely alarm conditions.

The HV and standard series are not interchangeable in either direction.

Q2: What is the difference between A06B-6097-H206 and A06B-6097-H205 in the same HV FSSB series?

The A06B-6097 dual-axis HV modules differ by channel current configuration.

The H205 is the SVM2-20/40HV (asymmetric), providing different currents on L and M channels; the H206 is the SVM2-60/60HV (symmetric), providing 16.3A on both L and M channels. 

The H206 is selected when both machine axes drive the same HV motor class; the H205 is selected when the two axes use different HV motor classes. Always verify the specific part number against the machine's axis configuration documentation.

Q3: What i-series CNC controls are compatible with this module?

The A06B-6097-H206 communicates via FSSB, which is compatible with FANUC 15i, 16i, 18i, and 21i controls in all their variants (A, B, C series where applicable).

The control's power supply and control voltage remain at standard low voltage — the HV drive system's high voltage is confined to the PSM and SVM power stages.

The CNC connects to the HV SVM via the standard FSSB fiber optic ring, and the control parameters are set for the specific HV motor models installed on each axis.

Q4: How does testing of the A06B-6097-H206 differ from testing a standard 200V SVM module?

Testing requires a Fanuc HV PSM generating the 566–651V DC bus and appropriate α12HV or α22HV servo motors — standard 200V test rigs cannot be used.

Specialist repair facilities with HV test infrastructure connect the module to the HV bus, exercise both L and M axis channels under load with appropriately rated HV motors, and verify current regulation, alarm protection response, and FSSB communication integrity.

The relatively smaller installed base of HV systems means fewer specialist facilities have HV test capability — confirm testing capability before sending the module for repair.

Q5: What alarm codes on the A06B-6097-H206 are specific to its high-voltage operation?

Alarm 5 (LVDC — low DC link voltage) is particularly relevant to HV systems: the DC link minimum threshold is set for the 566–651V HV bus, so any drop below this — from HV PSM fault, input supply issue, or HV bus bar connection fault — triggers this alarm.

The standard Alarm 8 (L-axis overcurrent) and Alarm 9 (M-axis overcurrent) diagnostics apply the same way as in 200V modules — disconnect motor cables and test motor insulation resistance (hundreds of megaohms to PE) before concluding the module's output stage has failed.

Fanuc A06B-6097-H206 alpha servo module SVM2-60/60HV, FSSB. Dual-axis, 566-651V/12kW, 16.3A/460V per axis, 90mm, for α12/α22 HV motors. 15i/16i/21i CNC.HV motor insulation testing requires a high-voltage insulation tester rated for the motor's voltage class.