1. General Information

• Model: A06B-6140-H026

• Type: αiPS-26 (Alpha i Power Supply Module)

• Manufacturer: FANUC

• Function: 3‑phase regenerative power supply for αi servo/spindle amplifiers; provides common DC bus and built‑in 24 V control power.

• Application: CNC machine tools, machining centers, high‑speed automation requiring up to ~30 kW.

2. Electrical Specifications

• Input: 3‑phase AC 200–240 V ±10%, 50/60 Hz

• Rated Input Current: 106 A @ 200 V

• Rated Power: 29.8 kW

• DC Bus Output: 283–339 VDC

• Rated DC Output Current: ~110 A

• Regeneration: Integrated (regenerative feedback to line)

• Control Power: Built‑in 24 VDC

• Cooling: Forced air (internal + external fan)

• Insulation Class: H (180°C)

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 in cabinet

• Clearance: ≥50 mm top/bottom

• Dimensions (W×H×D): approx 130 × 300 × 85 mm

• Weight: approx 6.5–7 kg

4. Key Features

• High power: 29.8 kW for medium‑to‑large systems.

• Common DC bus: Works with αi servo/spindle drives.

• Regenerative: Reduces energy waste and heat.

• Built‑in protection: Overcurrent, overvoltage, undervoltage, overtemperature, fan fault, phase loss.

• LEDs: Power, Alarm, DC Ready.

• FSSB: Digital link to CNC (30i‑B / 0i‑B etc.).

5. Compatibility

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

• Drives: αiSV servo, αiSP spindle amplifiers

• Series: Matches αiPS‑15 / αiPS‑55 family

6. Installation & Wiring

1. Safety: Disconnect all power; wait ≥15 min for capacitors to discharge.

2. Mounting: Vertical; maintain cooling clearances.

3. AC Input: Connect 3‑phase + PE.

4. DC Bus: Link DC+/DC− to servo/spindle units.

5. Grounding: Reliable PE to cabinet ground.

6. Check: Verify fan operation after power‑on.

7. Common Alarms

• AL1: Main circuit overcurrent

• AL2: Cooling fan stop/fault

• AL3: Heat sink overtemperature

• AL4: DC bus undervoltage

• AL5: Precharge failure

• AL6: Input power abnormal (phase loss, unbalance)

• AL7: DC bus overvoltage

8. Maintenance

• Monthly: Clean vents, check fans.

• Quarterly: Retorque terminals, inspect cables.

• Annually: Check capacitors, fans, insulation.

9. Safety Notes

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

• Install only in grounded, locked cabinets.

• Use genuine FANUC cables and parts.

• Keep ventilation clear to avoid overheating.