1. General Information

• Part Number: A16B-1100-0280/06A

• Manufacturer: FANUC

• Type: Digital 3‑axis servo control board (PCB)

• Applicable Drive: FANUC 6058 series AC servo amplifier (A06B-6058‑H32x)

• Revision: /06A (hardware version, earlier than /08A)

• Motor Compatibility: 0S / 1S / 2S / 3S / 10S series AC servo motors

• CNC Compatibility: FANUC 0, 10, 11, 12, 15 series

2. Functions

• 3‑Axis PWM Control: Current loop, speed loop, position loop for three axes

• Feedback: Serial encoder (α/β) interface, position/speed feedback processing

• Command I/F: ±10 V analog speed command, servo enable, direction, alarm output

• Protection: Overcurrent, overvoltage, undervoltage, overheat, encoder error, speed deviation

• Diagnostics: Onboard LED status indicators for power and alarms

3. Electrical Specifications

• Control Power: +5 V, ±15 V DC (from drive power unit)

• Signal Level: TTL / analog (±10 V)

• PWM Frequency: High‑speed switching for current control

• Isolation: Opto‑isolation between CNC and power stage

4. Mechanical & Environmental

• Dimensions (H×W×D): Approx 330 × 230 × 35 mm

• Weight: Approx 1.0 kg

• Mounting: Vertical inside 6058 servo drive

• Operating Temp: 0 °C to +55 °C

• Storage Temp: −30 °C to +85 °C

• Humidity: 10%–90% RH, non‑condensing

• Cooling: Forced air (drive internal fan)

5. Differences vs /08A

• /06A: Older hardware revision, basic protection and diagnostics

• /08A: Improved noise immunity, updated component layout, minor firmware tweaks

• Mechanically: Pin‑to‑pin compatible; direct replacement

6. Common Alarms

• SV‑01: Overcurrent → motor wiring/insulation or power module

• SV‑02: Overvoltage → input voltage or regeneration circuit

• SV‑03: Undervoltage → power supply, fuses, wiring

• SV‑04: Overheat → cooling fan, heatsink, ambient temp

• SV‑05: Speed deviation → encoder, cable, motor load

• SV‑06: Encoder error → encoder cable or connector

7. Maintenance & Handling

• ESD: Use anti‑static wristband when handling

• Inspection: Check for burnt components, swollen caps, loose connectors

• Cleaning: Dust removal every 3–6 months

• Connectors: Ensure tight and oxidation‑free

• Voltage Check: Verify +5 V, ±15 V

8. Safety

• High Voltage: Power off and discharge capacitors ≥10 min before service

• Qualified Personnel: Only trained technicians

• Genuine Parts: Use FANUC original parts