A06B-6120-H011
May 22, 2026

A06B-6120-H011

The A06B-6120-H011 is an αi PSM-11HVi high-voltage power supply module from FANUC Alpha i series, designed for 400V-class CNC systems. It supplies stable DC bus voltage to servo and spindle amplifiers, featuring high power density, regenerative capability, and comprehensive protection for industrial continuous operation.

Description

1. General Information

The A06B-6120-H011 is an αi PSM-11HVi high-voltage power supply module from FANUC Alpha i series, designed for 400V-class CNC systems. It supplies stable DC bus voltage to servo and spindle amplifiers, featuring high power density, regenerative capability, and comprehensive protection for industrial continuous operation.

2. Model & Identification

  • Part Number:A06B-6120-H011

  • Type:αi PSM-11HVi (Power Supply Module)

  • Series:Alpha i (αi)

  • Manufacturer:FANUC Corporation

  • Application:400–480V AC input, for high‑power servo/spindle drives.

3. Electrical Specifications

Input

  • Voltage:3‑phase 400–480V AC, 50/60Hz.

  • Rated Current:24A @ 400V.

  • Input Power:13kW (max).

Output (DC Bus)

  • Voltage:565–679V DC.

  • Rated Power:11kW (continuous).

  • Regeneration:Built‑in regenerative circuit; returns braking energy to AC line.

Control Power

  • External 24V DC ±10% for control logic and communication.

4. Mechanical & Environmental

  • Construction:Heavy‑duty metal casing, yellow front panel, vertical panel‑mount design.

  • Dimensions:Approx. 90mm (W) × 380mm (H) × 272mm (D).

  • Weight:Approx. 6.8kg.

  • Cooling:Internal fan + external heat sink, dual‑cooling design.

  • Operating Temperature:0°C to +55°C.

  • Storage Temperature:-20°C to +70°C.

  • Humidity:5%–95% RH (non‑condensing).

  • Vibration:0.5g (10–500Hz).

5. Compatibility

  • Servo Amplifiers:αi SVM series (400V class).

  • Spindle Amplifiers:αi SPM series (400V class).

  • CNC Systems:FANUC 30i/31i/32i‑B, 0i‑MF/TF (400V option).

  • Communication:FSSB (FANUC Serial Servo Bus) fiber‑optic interface.

6. Protection & Diagnostics

  • Overcurrent:Main circuit overcurrent/short‑circuit protection (AL‑01).

  • Overvoltage/Undervoltage:DC bus monitoring (AL‑04 undervoltage, AL‑07 overvoltage).

  • Overheat:Heat sink temperature monitoring (AL‑03).

  • Fan Fault:Internal/external fan detection (AL‑02).

  • Phase Loss:Input phase loss protection (AL‑E).

  • Regeneration Error:Regenerative overload (AL‑438).

  • Status Indicators:Power, FSSB link, alarm LEDs on front panel.

7. Installation & Wiring

  1. Power off the system and perform lockout/tagout to prevent electric shock.

  2. Mount vertically on cabinet panel with four M5 screws; maintain 100mm clearance above and below for ventilation.

  3. Connect 3‑phase AC input (L1/L2/L3) and ground PE terminal.

  4. Connect DC bus output (DC+, DC‑) to servo/spindle amplifiers.

  5. Connect 24V DC control power to CN1 connector.

  6. Connect FSSB fiber cable to FSSB IN/OUT for CNC communication.

  7. Verify all connections are secure before restoring power; check LED status and clear alarms.

8. Safety & Warnings

  • Warning:High voltage present inside; wait at least 10 minutes after power‑off before opening the cover.

  • Warning:Only qualified electrical personnel may perform installation, wiring, or maintenance.

  • Caution:Use only FANUC‑specified cables and connectors to avoid damage or fire.

  • Caution:Ensure proper ventilation to prevent overheating and premature failure.

  • Maintenance:Clean internal/external fans and heat sink every 3–6 months; replace faulty fans promptly.

9. Applications

  • High‑power CNC machining centers, lathes, milling machines.

  • 400V‑class industrial robots and automated assembly lines.

  • Multi‑axis motion control systems requiring high DC bus stability.

  • High‑speed, high‑precision industrial automation applications.


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