The FANUC A06B-6220-H026#H600 is an αiSP 26-B spindle amplifier module for compatible FANUC αi-B modular CNC drive systems. It controls the connected AC spindle motor using commands from the CNC and provides regulated spindle speed, torque and orientation operation according to the machine configuration.

This 200V-class spindle amplifier has a rated DC-bus input of 283–339VDC at 105A and a rated motor output of three-phase 200VAC at 128A. It must operate with a correctly selected FANUC power-supply module, spindle motor, CNC interface and feedback system.

A06B-6220-H026#H600 Product Information

αiSP 26-B Spindle Control

The A06B-6220-H026#H600 receives DC-link power from the system power-supply module and converts it into controlled three-phase output for the spindle motor. Its functions support spindle acceleration, speed regulation, torque control, deceleration and orientation, depending on the CNC software, spindle motor and machine-tool configuration.

H600 and H610 Hardware Versions

A06B-6220-H026#H600 is the original αiSP 26-B specification. A06B-6222-H026#H610 is a later level-up αiSP 26-B version. Although both use the same amplifier class, they should not be treated as automatically interchangeable. Confirm the CNC series, software support, control interface, power-supply combination, connectors and machine-builder requirements.

Replacement and Installation Checks

Match the complete A06B-6220-H026#H600 nameplate rather than ordering only by “αiSP 26-B.” Verify the input and output ratings, spindle motor model, power-supply module, feedback detector, connector arrangement, cooling fans and amplifier parameters. Back up CNC and spindle parameters before replacement. Installation should be completed by qualified personnel after the DC bus has fully discharged.

Related resources: FANUC spindle and servo drives and FANUC spindle amplifier repair services.