FANUC A06B-6121-H076#H570 is an αi SP SPM-75HVi Type A spindle amplifier module for FANUC high-voltage CNC spindle systems. It uses 400V-class HV architecture and supplies controlled three-phase output to a compatible FANUC αi spindle motor.

The complete ordering code is essential: H076 is the exact unit code, while #H570 identifies the 9D70/9D7A spindle software family. Match the entire nameplate rather than ordering from A06B-6121 alone.

A06B-6121-H076#H570 Specifications

Type A and #H570 Configuration

The A06B-6121 family is the Type A version with one spindle-sensor input; A06B-6122 is the related Type B family and is not the same unit. The #H570 suffix corresponds to the 9D70/9D7A software line. Do not substitute H075 or change the suffix to #H550, #H553 or #H570#C without an engineering compatibility check.

Motor and Power-Supply Compatibility

The SPM-75HVi class is intended for compatible FANUC αi high-voltage spindle motors. FANUC guidance calls for a PSM-75HVi or higher power-supply class, but final sizing must cover the combined spindle and servo load. Confirm the spindle motor, PSM, CNC generation, sensor, software, cables and parameters.

Testing and Installation Notes

REACO CNC checks the full label, power section, capacitors, IGBT stage, cooling fans, connectors, communication, feedback channels and alarms as applicable. Back up spindle parameters before replacement. Qualified personnel must isolate power and confirm that the DC link has fully discharged before installation.

Related resources: FANUC spindle and servo drives, FANUC CNC parts and FANUC technical support.