General Information

Model Identification (Common Types)

• A06B-6124-H102: SVM1‑20HVi, 1‑axis, 2.0kW

• A06B-6124-H104: SVM1‑40HVi, 1‑axis, 2.8kW, 9.1A

• A06B-6124-H106: SVM1‑180HVi, 1‑axis, 32kW, 58A

• A06B-6124-H207: SVM2‑40/40HVi, 2‑axis, 4.0kW total

• Series: Alpha i (αi)

• Type: High‑voltage servo amplifier (400V AC)

• Manufacturer: FANUC

• Application: High‑speed, high‑precision CNC motion control.

Electrical Specifications

DC Bus Input (from PSM)

• Voltage: 565–679V DC

• Control Power: External 24V DC ±10% (logic, FSSB, fan).

AC Output (to Servo Motor)

• Rated Output Voltage: 480V AC (3‑phase)

• Output Current: 9.1A–58A (model‑dependent)

• Output Frequency: Up to 400Hz

• Control Method: Full‑digital vector control (position/speed/torque).

Regenerative Capability

• Supports regenerative braking; energy fed back to DC bus via αi PSM.

Mechanical & Environmental Parameters

• Construction: Yellow metal housing, vertical panel mount, external heatsink.

• Dimensions (W×H×D): 60–90mm × 380mm × 272mm (model‑dependent)

• Weight: 3.8–5kg (model‑dependent)

• Cooling: Built‑in replaceable fan + high‑efficiency heatsink.

• Operating Temperature: 0°C to +55°C

• Storage Temperature: ‑20°C to +70°C

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

• Protection Class: IP20 (cabinet installation).

Compatibility

• Servo Motors: FANUC αi HV series (e.g., αi8/4000HV, αi12/3000HVi).

• Power Supply: αi PSM 400V‑class (e.g., A06B‑6120‑H075).

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

• Communication: FSSB fiber optic bus (100Mbps).

• Feedback: Absolute/incremental encoders (αi pulse coder).

Protection & Alarm Functions

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

• DC Bus Undervoltage (AL‑04) / Overvoltage (AL‑07).

• Heatsink Overheat (AL‑03)

• Fan Abnormal (AL‑02)

• Encoder/Feedback Error

• Regenerative Overload

• Front‑panel 7‑segment LED displays status and alarm codes.

Installation Guidelines

• De‑energize and lockout/tagout before installation.

• Mount vertically; ensure 50mm+ clearance top/bottom for ventilation.

• Connect DC bus to αi PSM; ground per local codes.

• Wire 24V control power and FSSB fiber cables per FANUC standards.

• Verify connections; clear alarms before power‑on.

Safety Notice

• High voltage inside; wait ≥10 minutes after power‑off before opening.

• Installation/maintenance by qualified personnel only.

• Use genuine FANUC cables/connectors.

• Keep airflow unobstructed; clean fan/heatsink regularly.

Key Features

• Compact 30% smaller footprint vs. previous generations.

• High‑efficiency low‑loss power devices reduce heat and energy use.

• Modular single/dual‑axis design for flexible system configuration.

• FSSB fiber communication for noise‑immune, high‑speed data transfer.

• Absolute encoder backup capacitor (10‑minute hold); no homing after replacement.