Multi-Axis Servo Control with the FANUC A06B-6117-H303 Amplifier Module

The A06B-6117-H303 is a robust three-axis servo amplifier from FANUC's reliable A06B series. It delivers precise power for demanding multi-axis automation systems. This module efficiently converts a DC input to controlled AC output for servo motors. It is engineered for stability across a wide range of operational frequencies and environmental conditions.

Core Identification & Electrical Input Specifications

• Product Code: FANUC A06B-6117-H303 servo amplifier module.
• Input Voltage: Wide DC input range from 283 VDC to 339 VDC for flexible power supply connection.
• Input Power: Rated input power of 1.5 kW for efficient energy conversion.
• Input Frequency: Compatible with standard 50 Hz and 60 Hz mains power infrastructure.

Output Performance & Motor Drive Capabilities

• Output Configuration: Three independent axes (L, M, N) for multi-axis control.
• Rated Output Current: Delivers 3 Amps continuous current on each of its three axes.
• Output Voltage: Generates a stable AC output between 200 VAC and 240 VAC.
• Output Frequency Range: Wide adjustable range from 0.1 Hz up to 800 Hz for precise speed control.
• Load Compatibility: Designed to drive standard FANUC AC servo motors within its power rating.

Environmental Durability & Operating Limits

• Operating Temperature: Reliable performance from 0°C (32°F) up to 55°C (131°F).
• Ambient Humidity: Can operate in environments with up to 90% relative humidity (non-condensing).
• Thermal Management: Requires adequate cabinet ventilation or cooling at maximum ambient temperature.
• Installation Altitude: Standard operation suitable for typical industrial facility elevations.

Physical Specifications & System Integration

• Weight: Approximately 15.0 pounds (6.8 kilograms) for manageable integration into panels.
• Form Factor: Compact module design for efficient use of control cabinet space.
• Communication Interface: Integrates with FANUC CNC and motion controllers via proprietary bus.

Packaging, Warranty & Global Shipping

• Package Contents: Includes the FANUC servo amplifier module, ready for installation.
• Product Warranty: This product is covered by a standard 12-month warranty from the date of delivery.
• Shipping Methods: Available for international delivery via FedEx, UPS, and DHL express services.

Expert Application & Configuration FAQs

• Why does the module specify a DC input voltage (283-339VDC) instead of AC?
• This amplifier is designed to connect to the DC link bus of a higher-level FANUC power supply unit (PSU). The PSU converts AC mains to a stable DC bus, which multiple servo amplifiers like this one then draw from for efficient, regulated power distribution.
• What does the 0.1 Hz lower limit on the output frequency enable?
• This extremely low frequency allows for precise, slow creeping speeds. This is critical for applications like machine tool setup, alignment procedures, or very slow-speed indexing where high resolution at near-zero RPM is required.
• Can I use this 3-axis amplifier to control three completely independent machines?
• No, the axes are controlled by a single command source (e.g., one CNC channel). They are designed for coordinated motion within one machine, like the X, Y, and Z axes of a milling machine, not as three separate drive units.
• How should I derate the amplifier's 3A current rating at 55°C ambient temperature?
• Consult the official FANUC maintenance manual for detailed derating curves. Typically, you must reduce the continuous output current at maximum ambient temperature to prevent overheating and ensure long-term reliability.
• What is a common cause of alarm when the input DC voltage drops near 283V?
• The connected servo motors under high load or acceleration may cause a temporary "DC Link Undervoltage" alarm. Ensure the upstream power supply unit is sized correctly for the total system load to maintain stable DC bus voltage.

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