Description
FANUC A0
6B-6117-H105 – αi-Series Servo Amplifier Module for Reliable CNC Motion Control
The FANUC A06B-6117-H105 is a compact αi-series servo amplifier module designed for stable, efficient control of FANUC AC servo motors in CNC machines. From my experience, this H105 variant is typically chosen as a mid-range, multi-axis servo amp in machining centers and lathes where uptime and quick replacement really matter. It pairs with the FANUC αi power supply and connects to the CNC over FSSB fiber optics, so wiring stays clean and diagnostics are straightforward.
Company’s Order Placement Process and Guarantees
- Warranty: 365 days
- Lead time: 1 week if in stock; no more than one month at the latest
- Payment: 50% advance payment; full payment before delivery
- Shipping: FedEx, UPS, DHL
Key Features
- FANUC αi ecosystem compatibility: Works with αi-series power supplies and servo motors (e.g., αiS / αiF), keeping retrofits and replacements smooth.
- FSSB fiber-optic link: High-noise immunity and quick setup with FANUC 0i/30i/31i/32i CNCs via fiber optics; fewer cables, fewer headaches.
- Built-in protection and diagnostics: Overcurrent, overheat, and DC bus monitoring with 7-seg alarm display for fast troubleshooting on the shop floor.
- Regeneration handling: Supports regenerative energy; external resistor connection when required to improve braking performance.
- Compact cabinet footprint: Panel-mounted vertical layout helps fit multi-axis systems without reworking the cabinet.
- Service-friendly design: Clear terminal labeling and modular connectors; techs can typically swap an H105 in under an hour.
Technical Specifications
| Brand / Model | FANUC A06B-6117-H105 (αi-series Servo Amplifier Module) |
| HS Code | 8504.40 (Static converters – servo drive/servo amplifier) |
| Power Requirements | Supplied by FANUC αi Power Supply (DC link). Typically 200–240 V class systems with approx. 283–325 VDC DC bus. |
| Dimensions & Weight | Typical for A06B-6117 family: approx. 380(H) × 90–120(W) × 300(D) mm; ~6–9 kg depending on axis rating. |
| Operating Temperature | 0 to 55°C, non-condensing environment recommended. |
| Signal I/O Types | U/V/W motor outputs per axis, 24 VDC brake control (where applicable), alarm/ready contact, regen resistor connection (if used). |
| Communication Interfaces | FANUC FSSB (fiber optic) to CNC controller; not used as a fieldbus slave. |
| Installation Method | Panel mounting (vertical) in control cabinet; bus connection to αi power supply; follow FANUC grounding and shielding practices. |
Application Fields
You might notice that this module shows up in a lot of mid- to high-precision machines. It seems to be a sweet spot for multi-axis systems that need dependable servo control without oversizing.
- CNC machining centers and tapping centers using αiS/αiF motors
- Turning centers and multi-turret lathes with multiple feed axes
- Grinding equipment where smooth low-speed performance is critical
- EDM and wire-cut machines needing steady axis response
- Retrofit and service replacements for FANUC 0i/30i/31i/32i platforms
Advantages & Value
- Reliability that reduces downtime: FANUC servo amps are known for long life; spares strategy gets simpler when you standardize on αi modules.
- Drop-in compatibility: Minimal parameter changes when replacing an existing H105 in the same machine family.
- Lower total cost: Efficient regeneration handling can reduce brake and resistor wear; fewer nuisance alarms means fewer service calls.
- Diagnostics support: Clear alarm codes help maintenance isolate issues fast; in many cases, you can recover within a single shift.
Customer feedback: “We swapped an A06B-6117-H105 on a 3-axis VMC in under 40 minutes, restored FSSB link, and were cutting parts the same afternoon. Noise issues we had with the old unit disappeared.”
Installation & Maintenance
- Cabinet environment: Clean, dry enclosure; vertical mounting with at least the manufacturer’s recommended clearance for airflow. Avoid mounting near high-heat sources.
- Power & grounding: Feed via the correct αi power supply module; use proper PE grounding; keep motor cables and FSSB fibers routed separately from high-noise lines.
- Wiring practices: Use shielded motor/encoder cables; verify brake polarity and regen resistor rating if used; torque lugs to spec.
- Safety: Lockout/tagout, discharge DC bus before service, confirm EMG chain integrity. Wait for DC bus LEDs to extinguish before touching power terminals.
- Routine checks: Inspect fan and heat sink for dust; clean filters; verify connector seating; review alarm history. Firmware and CNC parameters should match machine builder recommendations.
- Commissioning tips: After installation, run axis without load, confirm no abnormal heat, and validate servo tuning values provided by the machine tool builder.
Quality & Certifications
- Typically CE compliant for industrial environments
- UL Recognized components in many markets
- RoHS-compliant manufacturing for most αi-series units
- Manufacturer-grade quality assurance; 365-day warranty from our side
If you’re replacing an existing unit, share the motor model(s) and CNC type. One thing I appreciate about the H105 is how predictable installation becomes when the axis ratings line up—saves time, and in most cases avoids parameter rework.
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