Product Overview
When CNC systems experience unexpected downtime due to servo drive failures, the FANUC A06B-6079-H105 servo amplifier provides a reliable solution. Designed specifically for CNC applications, this unit delivers a rated power of 4.75 kW and handles a rated current of 18.7 A. Its robust construction and built-in protection features ensure consistent motion control even in demanding industrial environments.
Technical Specifications
The FANUC A06B-6079-H105 is a servo amplifier (servo drive) from the A06B product line. Below are the key parameters based on manufacturer data:
| Specification |
Value |
| Manufacturer |
FANUC |
| Product Type |
Servo Amplifier (Servo Drive) |
| Product Line |
A06B |
| Part Number |
A06B-6079-H105 |
| Weight |
15.00 lbs (6.80 kg) |
| Rated Current |
18.7 A |
| Rated Power |
4.75 kW |
| Input Voltage |
230 VAC |
| Frequency |
50/60 Hz |
| Application |
CNC Systems |
| Mounting |
Vertical/Wall-mounted |
| Operating Temperature |
0°C to 55°C |
| Control Type |
PWM Interface |
| Cooling Method |
Air Cooled |
| Protection Features |
Overload, Overcurrent, Overvoltage Protection |
The rated power of 4.75 kW and current of 18.7 A make this servo amplifier suitable for high-torque CNC axis drives. The PWM control type ensures precise motor speed and position regulation. Air cooling maintains thermal stability across the 0°C to 55°C operating range.
Industry Applications
The FANUC A06B-6079-H105 excels in CNC machining centers, milling machines, and lathes where reliable motion control is critical. Its overload protection prevents motor damage during heavy cutting operations, while overcurrent and overvoltage safeguards protect the drive from electrical faults. For example, in a high-speed machining application, the A06B-6079-H105 maintains consistent torque output even under variable loads, reducing the risk of production stoppages.
Maintenance & Reliability
To maximize the lifespan of the FANUC A06B-6079-H105, follow these routine care guidelines. Inspect the air intake and exhaust vents monthly for dust buildup—blocked airflow can cause overheating. Verify that the ambient temperature stays within 0°C to 55°C. The built-in protection features (overload, overcurrent, overvoltage) actively prevent failure modes common in servo drives, such as thermal runaway or short circuits. Regularly check the wiring connections for signs of corrosion or looseness, especially at the power input terminals. By adhering to these practices, you reduce unplanned downtime and extend service life.
Troubleshooting Guide
Common issues with servo amplifiers and how the FANUC A06B-6079-H105 addresses them:
-
Overheating: The air-cooled design and thermal protection circuit cut power if internal temperatures exceed safe limits. Ensure the ventilation path is clear.
-
Overcurrent trip: If the amplifier trips repeatedly, check the motor for winding shorts or mechanical binding. The overcurrent protection prevents damage to the output stages.
-
Overvoltage condition: Regenerative energy from decelerating loads can cause DC bus overvoltage. The A06B-6079-H105's overvoltage protection engages to clamp the voltage. Install an external braking resistor if frequent regenerative loads occur.
-
No power: Verify input voltage of 230 VAC at 50/60 Hz. Check the input fuses and wiring. The protection circuit may have latched off after a fault—cycle input power to reset.
Always refer to the manufacturer's manual for detailed fault code interpretation.
Selection Guide & Purchasing Advice
Before purchasing the FANUC A06B-6079-H105, confirm compatibility with your CNC control system. Verify the input voltage (230 VAC) matches your facility supply. This servo amplifier is designed for vertical or wall mounting—ensure adequate clearance for airflow. For a reliable source of genuine automation spares, consider PLC Source PRO (via ubest101). They stock a wide range of FANUC drives and parts to keep your operations running.