1. General Information

• Model: A06B-6141-H015 (#H580 standard)

• Type: αiSP 15 (SPM-15i), Alpha i Spindle Amplifier

• Manufacturer: FANUC

• Function: High-power spindle drive for αi spindle motors; runs from αiPS DC bus; FSSB fiber to CNC.

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2. Electrical Specifications

• DC Bus Input: 283–339 VDC (from αiPS)

• Rated Input Power: 17.5 kW

• Max Output Voltage: 240 VAC, 3-phase

• Rated Output Current: 63 A (continuous)

• Output Frequency: 0–400 Hz

• Control Method: Vector control, spindle positioning, rigid tapping

• Feedback: αiA spindle encoder (16 million pulses/rev)

• Communication: FSSB (fiber optic)

• Cooling: Forced air (internal + external fan)

• Regeneration: Compatible with αiPS power supply (regenerative to grid)

3. Environmental & Mechanical

• Operating Temp: 0°C to +40°C

• Storage Temp: −20°C to +70°C

• Humidity: 5–95% RH, non-condensing

• Altitude: ≤1000 m (derate above)

• Protection: IP20

• Mounting: Vertical panel mount

• Clearance: ≥50 mm top/bottom

• Dimensions (W×H×D): approx 130 × 350 × 260 mm

• Weight: approx 6.5 kg

4. Key Features

• High power: 17.5 kW / 63 A for heavy-duty spindles.

• High precision: 16‑million pulse/rev encoder + rigid tapping support.

• High speed: Up to 400 Hz for high‑speed machining.

• V3 vibration suppression: Improved surface finish and spindle stability.

• Regenerative: Returns braking energy to grid (saves power vs resistor regen).

• Easy maintenance: Field‑replaceable fans (A90L‑0001‑0510 / ‑0508).

• Built‑in protection: Overcurrent, overvoltage, undervoltage, overtemperature, fan fault, short circuit.

• LEDs: Power, Alarm, Spindle Ready.

5. Compatibility

• CNC: FANUC 30i‑B, 31i‑B, 32i‑B, 0i‑B / 0i‑D

• Power Supply: αiPS series (A06B‑6140‑H015 / H026 / H055)

• Motors: αiSP series spindle motors (e.g., αiSP15 / αiSP22)

• Interface: TYPE A (standard for αi series)

6. Installation & Wiring

1. Safety: Disconnect power; wait ≥15 min for DC bus discharge.

2. Mounting: Vertical; maintain ≥50 mm top/bottom clearance.

3. DC Bus: Connect DC+/DC− from αiPS power supply.

4. Motor Wiring: Connect spindle motor U/V/W + PE.

5. FSSB: Fiber cable to CNC; daisy‑chain with other drives.

6. I/O: Wire spindle ready, alarm, speed command, orientation signals.

7. Grounding: Secure PE to cabinet ground (low impedance).

8. Check: Verify fan operation and LED status after power‑on.

7. Common Alarms (Simplified)

• SP9001: Motor overheat

• SP9002: Excessive speed error

• SP9003: DC link fuse blown

• SP9004: Input power supply fault

• AL‑FAN: Cooling fan failure

• AL‑OV: Overvoltage

• AL‑UV: Undervoltage

• AL‑OC: Overcurrent

8. Maintenance

• Monthly: Clean air filters; check internal/external fans.

• Quarterly: Retorque power terminals; inspect motor cables.

• Annually: Check electrolytic capacitors, fan wear, insulation resistance.

9. Safety Notes

• High voltage remains after power‑off; wait ≥15 min before servicing.

• Install only in grounded, locked electrical cabinets.

• Use genuine FANUC cables and connectors.

• Keep ventilation clear to avoid overheating.