1. General Information

• Model: A06B-6110-H026

• Type: PSM-26i (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 integrated 24 V control power.

• Application: CNC machine tools, machining centers, high‑speed automation 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: 26 A (continuous)

• Max Output Current: 31 A (peak)

• Regeneration: Integrated (regenerative feedback to line)

• Control Power: Built‑in 24 VDC

• Efficiency: 92%

• Power Factor: ≥0.98

• Cooling: Forced air (internal + external fan)

• Insulation Class: 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 1% per 100 m above)

• Protection: IP20 (front)

• Mounting: Vertical panel mount

• Clearance: ≥50 mm top/bottom

• Dimensions (W×H×D): 190 × 290 × 170 mm (7.5 × 11.4 × 6.7 in)

• Weight: 10.7 kg (23.6 lb)

4. Key Features

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

• Common DC bus: Works with αiSV servo and αiSP spindle amplifiers.

• Regenerative: Returns excess energy to the grid, reducing heat and waste.

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

• LED indicators: Power, Alarm, DC Ready.

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

5. Compatibility

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

• Drives: αiSV servo amplifiers (A06B‑6110), αiSP spindle amplifiers (A06B‑6220)

• Series: Matches αiPS‑15 (H015) / αiPS‑55 (H055) family

6. Installation & Wiring

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

2. Mounting: Vertical installation; maintain cooling clearances.

3. AC Input: Connect 3‑phase L1/L2/L3 + PE.

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

5. Grounding: Secure PE to cabinet ground.

6. Check: Verify fan operation and LED status 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 air vents, check fan operation.

• Quarterly: Retorque power terminals, inspect cables/insulation.

• Annually: Check electrolytic capacitors, fans, and 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 paths clear to avoid overheating.