The FANUC A06B-6117-H256 is an Alpha i series servo amplifier module used for CNC machine servo axis control. It is commonly identified as an AiSV 20/40L or αi SV 20/40L dual-axis servo amplifier module. This module is designed to control two servo axes in FANUC CNC systems and is suitable for machine repair, servo amplifier replacement, retrofit maintenance, and spare parts supply.

This model belongs to the A06B-6117 Alpha i servo amplifier family. The A06B-6117-H256 configuration is listed as a 2-axis Alpha i servo module with AiSV 20/40L rating. The 20/40L designation helps identify the servo amplifier capacity class for two controlled axes. It is important to confirm the complete model number from the amplifier nameplate before ordering, because similar A06B-6117 modules may have different current ratings, axis quantities, HRV support, and machine compatibility.

The A06B-6117-H256 is commonly used in CNC machine tools, machining centers, turning centers, drilling machines, grinding machines, milling machines, automated production equipment, and other FANUC CNC servo systems. It can be used when an existing servo amplifier reports alarms, fails to enable, has power stage faults, shows axis drive errors, or needs to be replaced during maintenance.

For replacement applications, the complete machine configuration must be checked carefully. Please confirm the old amplifier label, CNC control system, servo motor model, power supply module, spindle amplifier, axis assignment, servo software, parameter backup, cabinet wiring, feedback cable, and alarm code before ordering. The same part number is the safest replacement route, but machine parameters and connected motor combinations should still be verified.

This product should be described as a servo amplifier module or servo drive module, not as a CNC controller, PLC module, spindle amplifier, or general inverter. It should also not be described as a fieldbus device unless an actual communication option or machine configuration has been confirmed. For most replacement orders, buyers should focus on the full model number A06B-6117-H256, AiSV 20/40L rating, axis quantity, machine compatibility, and tested working condition.

Dengfeng supplies FANUC servo amplifier modules, spindle amplifier modules, power supply modules, CNC control units, servo motors, encoder cables, power cables, control boards, I/O modules, operator panels, and automation spare parts for CNC machine repair and production line maintenance. Before shipment, we can check the model label, housing condition, connector condition, fan condition, terminal condition, and packaging according to your request.

Key Features

• FANUC A06B-6117-H256 Alpha i servo amplifier module
• AiSV 20/40L / αi SV 20/40L model rating
• Dual-axis / 2-axis servo amplifier module
• 20A / 40A class axis rating
• Part of the FANUC A06B-6117 Alpha i servo amplifier family
• HRV4 supported
• Designed for FANUC CNC servo axis control
• Suitable for CNC machine repair and amplifier replacement
• Used in machining centers, turning centers, milling machines, and production equipment
• Useful for retrofit, spare parts supply, and factory maintenance

Typical Applications

The FANUC A06B-6117-H256 servo amplifier module can be used in:

• FANUC CNC servo systems
• CNC machining centers
• CNC turning centers
• CNC milling machines
• Grinding machines
• Drilling machines
• Mold machining equipment
• Precision metalworking machines
• Automated production machinery
• Servo axis replacement projects
• CNC machine retrofit projects
• Factory maintenance spare parts

FAQ

Q1: What is FANUC A06B-6117-H256?
A1: FANUC A06B-6117-H256 is an Alpha i series servo amplifier module used for CNC servo axis control.

Q2: What is the model name of A06B-6117-H256?
A2: It is commonly listed as AiSV 20/40L or αi SV 20/40L.

Q3: Is A06B-6117-H256 a dual-axis servo amplifier?
A3: Yes. It is a 2-axis Alpha i servo amplifier module.

Q4: What does 20/40L mean?
A4: The 20/40L designation identifies the amplifier capacity class for the two controlled servo axes. The complete replacement should still be confirmed by the full part number and machine configuration.

Q5: Does A06B-6117-H256 support HRV4?
A5: Yes. FANUC Alpha i servo amplifier documentation lists A06B-6117-H256 αi SV 20/40L as HRV4 supported.

Q6: Is A06B-6117-H256 a spindle amplifier?
A6: No. It should be described as a servo amplifier module. It is not a spindle amplifier, CNC controller, PLC module, or general inverter.

Q7: Can A06B-6117-H256 replace A06B-6117-H255?
A7: They should not be replaced only by appearance. A06B-6117-H255 is commonly listed as AiSV 20/20L, while A06B-6117-H256 is AiSV 20/40L. Axis rating, servo motors, CNC parameters, and machine configuration must be checked.

Q8: Can A06B-6117-H256 replace A06B-6117-H257?
A8: Usually no direct replacement should be made without verification. A06B-6117-H257 is commonly listed as AiSV 40/40L, while A06B-6117-H256 is AiSV 20/40L. The axis ratings are different.

Q9: What should I check before ordering this amplifier?
A9: Please check the old amplifier nameplate, full model number, CNC system, servo motor model, axis assignment, power supply module, feedback cable, alarm code, and parameter backup before ordering.

Q10: What applications commonly use this module?
A10: It is commonly used in FANUC CNC machining centers, turning centers, milling machines, grinding machines, drilling machines, and automated production equipment.

Q11: Can you help confirm compatibility?
A11: Yes. Please send photos of the original amplifier label, cabinet wiring, connected servo motors, CNC system label, power supply module, and current alarm display. We can help check whether A06B-6117-H256 matches your replacement requirement.

Q12: What condition can be supplied?
A12: Depending on stock, the module may be supplied as new, used, refurbished, or tested working condition. Please confirm the required condition before ordering.