1. General Information

• Part Number: A06B-6102-H222 (#H520)

• Model: αi SPM‑22 (Spindle Amplifier Module, 200 V class)

• Brand: FANUC

• Application: High‑power spindle drive for CNC lathes, machining centers, heavy‑duty milling; supports rigid tapping, Cs contouring

• Communication: FSSB (FANUC Serial Spindle Bus, fiber‑optic)

• Mounting: Vertical, cabinet‑mounted (screw‑fixed)

• Weight: Approx. 15 kg

• Manual Number: B‑65162 (instruction), B‑65285E (maintenance)

2. Electrical Ratings

• DC Bus Input: 283–325 VDC (from αi PSM power supply)

• Rated Output Power: 25.2 kW

• Rated Output Current: 95 A (3‑phase)

• Max Output Current: 120 A

• Output Voltage: 3‑phase AC 230 V

• Input Frequency: 50/60 Hz

• Cooling: Built‑in forced air cooling (internal fan)

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

• Storage Temperature: −20 °C to +60 °C

• Protection Class: IP20 (indoor use)

• Certification: CE approved

3. Compatibility

• CNC Systems: 0i‑MF/TF, 16i/18i/21i, 30i‑B (FSSB interface)

• Spindle Motors: αi series (αiS/αiF/αiM) 22 kW class (200 V)

• Power Supply: A06B‑6091/6134 series (αi PSM)

• Feedback: αi spindle encoder (A/B/Z/Cs signals)

4. Connector Description

• CXA2A: 24 VDC control power, alarm output

• FSSB IN/OUT: Fiber‑optic communication (CNC ↔ amplifier)

• CN1: Spindle encoder feedback

• CN2: Spindle motor power (U/V/W)

• P/N: DC bus (+/−), regenerative resistor terminals

• PE: Protective earth (ground)

5. Protection Functions

• Overvoltage / Undervoltage protection

• Overcurrent / Short‑circuit protection

• Overtemperature protection (main circuit / motor)

• Fan failure detection

• DC link fuse blown detection

• Motor overspeed / speed error alarm

6. Key Features

• High‑power 25.2 kW output for heavy machining

• Fiber‑optic FSSB for high noise immunity and simplified wiring

• High‑speed response; supports rigid tapping and Cs contouring

• Built‑in self‑diagnostics with LED status and alarm codes

• Compact, high‑density design for cabinet space optimization

7. Typical Alarm Codes

• 1: Motor overheat

• 3: Excessive speed error

• 5: Power supply fuse blown

• 7: Overspeed

• 12: Overcurrent in power circuit

• 36: Overflow error counter