Single-Axis CNC Servo Amplifier Module, 200 V Class — 9.1 kW, 283–325 Vdc DC Link Input, 230 Vac Max Output, 52.2 A Rated / 130 A Limit, FSSB Fibre-Optic Serial Interface

What this part is:
A FANUC α (alpha) series Servo Amplifier Module — an SVM, part of FANUC’s modular CNC drive architecture. Catalogue number A06B-6096-H106, amplifier model designation SVM1-130. It is the power stage for one CNC servo axis: it takes DC from a shared DC link and delivers three-phase PWM output to a FANUC α servo motor, taking its commands over the FSSB serial bus from the CNC.

Decoding the designation A06B-6096-H106:
A06B-6096 — the FANUC α series Servo Amplifier Module (SVM) family with FSSB interface, 200 V input class. The FSSB generation is what distinguishes this series from the earlier A06B-6079 / A06B-6089 SVMs, which use the older parallel/serial interfaces.-H1xx — a single-axis (SVM1) module. Two- and three-axis modules (SVM2, SVM3) carry different H-codes in the same series.-H106 — specifically SVM1-130: one axis, 130 A peak current limit, 52.2 A rms rated output current on the L axis.Within the same A06B-6096 series, -H104 is the SVM1-40L (12.5 A rated, 3.75 kW), so the H-code is not cosmetic — it sets the current rating and therefore which motor the module can drive. Do not substitute across H-codes.

Ratings:
Rated input 9.1 kW from a DC link of 283–325 Vdc (200 V input class). Maximum output 230 Vac. Rated output current 52.2 A rms on the L axis, with the current limit at 130 A — which is where the “-130” in SVM1-130 comes from. Single axis, designated L axis. Module weight approximately 6.5 kg.

Why the two current figures matter:
The 52.2 A rated and 130 A limit figures are not redundant. The rated current is what the module will deliver continuously without thermal derating; the 130 A limit is the peak available for acceleration and for the short high-torque bursts a rapid traverse or a heavy cut demands. Size on the rated figure against your duty cycle and on the limit figure against your worst-case acceleration torque. An amplifier chosen only on peak will trip thermally on a continuous cut; one chosen only on continuous will alarm during rapids.

The DC link — the commissioning point that catches people:
An SVM is not a self-contained drive. It has no mains rectifier of its own: the 283–325 Vdc it wants is supplied over the DC link bus bars by a separate FANUC Power Supply Module (PSM), which is the module that connects to the three-phase mains and handles regeneration. In a typical α series cabinet the PSM, any spindle module (SPM) and one or more SVMs sit side by side sharing that DC link. If you are ordering this module as a spare, confirm the PSM in the cabinet has the capacity headroom for a 9.1 kW axis and that the DC link bus bar links are the right length for the module width. Bench-testing an SVM in isolation without a PSM is not possible.

FSSB and CNC compatibility:
Commands arrive over FSSB (FANUC Serial Servo Bus), a fibre-optic serial link daisy-chained from the CNC through each axis amplifier. Practically this means: the module must be in the correct position in the FSSB chain, and the CNC’s axis-to-amplifier assignment parameters must match the physical order. Swapping an amplifier into a different chain position without updating the FSSB parameters will produce an axis-mismatch alarm rather than a wiring fault. FSSB-generation A06B-6096 modules pair with FANUC i-series CNCs (15i, 16i, 18i, 20i, 21i and later). Series documentation is the FANUC α series AC Servo Amplifier Descriptions Manual, publication B-65162.

Motor pairing:
The SVM1-130 is commonly applied with FANUC α Model 22 class servo motors. Because the H-code fixes the current rating, motor pairing is determined by the amplifier model rather than by parameter alone — check the motor/amplifier combination table in B-65162 against your motor’s model code before fitting.

What is and is not included:
Servo amplifier module only. Not included: Power Supply Module (PSM), DC link bus bars and links, mains reactor, FSSB fibre-optic cables, motor power and feedback cables, servo motor, connectors, or fan/spare fan unit. Internal drive boards on A06B-6096 series units are commonly control cards A16B-2202-0790 or A20B-2100-0252 with power card A16B-2203-0454 — useful if you are cross-checking a repair or matching board revisions to an existing amplifier, though the exact fitted board set on any individual unit should be verified from the boards themselves.

Interchange, condition and obsolescence:
The α series SVM generation is superseded in current FANUC production by the αi and βi series amplifiers. There is no drop-in modern equivalent: moving to αi means changing the PSM, the amplifiers, the FSSB topology and in most cases the CNC parameters together, so for a machine that is running, an in-kind α series SVM is by a wide margin the cheaper path. That is why the used and repaired market for A06B-6096 modules stays active. Related numbers to search: A06B-6096-H101 through -H1xx (other single-axis ratings in this series), A06B-6096-H2xx / -H3xx (two- and three-axis SVMs), A06B-6079 and A06B-6089 (earlier-interface SVM generations), A06B-6110 (αi SVM successor generation). The unit is documented as Made in Japan, in good condition and a working unit, sold used.

Sourcing note: FANUC does not publish A06B-6096 series ratings on an open web product page. The figures above are the B-65162 Descriptions Manual specification table as republished consistently across specialist FANUC drive suppliers, and should be treated as accurate but second-hand rather than fetched from FANUC’s own site.