Servo Amplifier A06B-6093-H102 A06B6093H102 A06B-6093-H102

FANUC A06B-6093-H102 | Beta SVU-20 Single-Axis Servo Amplifier — Type B PWM / 5.9A / Built-In Power Supply

Self-Contained Drive — No PSM Required

The clearest architectural distinction between the Beta SVU and the Alpha SVM series is the built-in power supply. Alpha SVM modules require a dedicated PSM (Power Supply Module) that converts AC mains to a shared DC bus for multiple amplifier modules. The Beta SVU-20 incorporates its own AC-to-DC conversion internally — it connects directly to single-phase or three-phase AC supply and operates as a completely standalone unit.

This self-contained architecture is why the A06B-6093-H102 is the standard choice for auxiliary and secondary axis applications: ATC magazine arms, CNC lathe turret indexing, fourth-axis rotary tables, and peripheral automation equipment. These axes operate independently from the main feed axis drive stack and need a drive that can be placed and wired independently anywhere on the machine without integrating into a shared bus.

Type B Interface — CNC Connection

The Type B PWM interface connects the A06B-6093-H102 to the servo command bus of FANUC Series 0, 15, 16, 18, 20, and 21 CNC controls — the same control generations that ran Alpha series drives. The Type B version can also be used within Alpha series drive cabinets when mixing drive types. It is specifically the first-generation Beta SVU, preceding the βi series (A06B-6114-H103) which uses the FSSB fibre-optic interface of the i-Series CNC platform.

The other SVU-20 variant — A06B-6093-H112 — uses I/O Link interface for auxiliary positioning axes managed through the CNC's I/O Link network rather than the Type B servo bus. Both share the same 5.9A power stage.

Key Specifications

FAQ

Q1: What is the difference between A06B-6093-H102 (Type B) and A06B-6093-H112 (I/O Link)?

Same power stage and 5.9A output current. The difference is the CNC interface. H102 uses Type B PWM interface — connects to the servo command bus of FANUC Series 0/15/16/18/20/21 controls. H112 uses I/O Link — for auxiliary axes managed through the CNC's I/O Link network. Select based on the interface the CNC uses to command that axis.

Q2: Does the A06B-6093-H102 require an external PSM?

No. The Beta SVU-20 has its own built-in power supply — it connects directly to AC mains (single-phase or three-phase) and operates completely independently. This is the fundamental difference from Alpha SVM modules, which require a shared PSM.

Q3: Which CNC controls are compatible?

FANUC Series 0, 15, 16, 18, 20, and 21 via the Type B interface. It can also operate within Alpha series drive configurations that support Type B connections. Confirm the servo interface type of the specific CNC model.

Q4: How are drive alarms diagnosed on the A06B-6093-H102?

The Beta SVU uses LED indication on the drive front face. Unlike Alpha series modules that display a numeric code directly, Beta SVU alarm codes must be cross-referenced to the CNC's servo alarm display for the axis this drive controls. Persistent alarms that do not clear on power cycle typically indicate cooling fan failure, overcurrent from motor or wiring faults, or a component fault requiring repair.

Q5: Is the A06B-6093-H102 repairable?

Yes. Power transistors, cooling fan, battery pack, and fuses are all available as separate service parts. Component-level repair by a facility with FANUC Beta test equipment and live motor testing capability is viable — particularly cost-effective when only the transistor module or fan has failed rather than the control card. Exchange programs (refurbished unit supplied immediately, faulty unit returned) minimise downtime for production-critical machines.