FANUC A06B-6077-H106 Power Supply Module 6.8 kW 26A

Product Introduction

The FANUC A06B-6077-H106 power supply module serves as the energy backbone for FANUC CNC servo systems. This ALPHA power supply unit converts standard 200 VAC industrial input into a regulated DC output ranging from 283 to 325 VDC, supporting multiple servo amplifiers and spindle drives simultaneously. With a rated current of 26 A and total power capacity of 6.8 kW, it handles medium-to-large machining centers and turning systems. Furthermore, its air-cooled design simplifies installation without requiring liquid cooling infrastructure. The module mounts vertically or on walls, offering flexibility for cabinet layouts. Comprehensive protection features – including overload, overcurrent, and overvoltage safeguards – ensure system stability even during sudden load changes or utility fluctuations. Additionally, this unit supports both 50 Hz and 60 Hz line frequencies, making it suitable for global deployment.

Technical Specifications

The A06B-6077-H106 operates with a 200 VAC input voltage (±10% tolerance) and delivers an adjustable output voltage between 283 and 325 VDC. Its rated current capacity is 26 A continuous, supporting peak loads for short-duration acceleration phases. The total power rating reaches 6.8 kW, sufficient for powering multiple 3-5 kW servo axes in typical CNC configurations. This module belongs to FANUC's ALPHA power supply family, known for high efficiency (approximately 95%) and low ripple output. Cooling is achieved via forced air convection, with an integrated fan that activates based on thermal demand. The operating temperature range spans 0°C to 55°C (32°F to 131°F), covering most factory environments. Moreover, the unit weighs 6.80 kg (15.00 lbs), allowing straightforward handling during installation. Protection circuits monitor input undervoltage, output overcurrent, and internal overtemperature, automatically shutting down the module to prevent damage.

Mechanical & Environmental Parameters

This FANUC power supply module requires vertical or wall-mounted orientation for proper airflow. The enclosure features mounting slots compatible with M5 screws, with a recommended torque of 3.0 N•m. Adequate clearance – at least 150 mm above and 100 mm below – is essential for unobstructed air intake and exhaust. Operating ambient temperature must remain between 0°C and 55°C; derating is required if the unit operates above 45°C at full load. Additionally, the module tolerates relative humidity from 30% to 95% (non-condensing) and vibration up to 4.9 m/s² (0.5G) at 10-55 Hz. The IP rating is IP20, indicating protection against solid objects over 12 mm but not against moisture – therefore, install it inside a control cabinet with adequate ingress protection. For altitude, full performance is guaranteed up to 1000 metres above sea level; above that, derate output current by 1% per 100 metres.

Installation Guidelines

Before mounting the A06B-6077-H106, confirm that the input power supply matches 200 VAC ±10% and that the cabinet has sufficient ventilation. First, secure the module to a flat vertical surface using M5 screws through the four mounting holes – apply 3.0 N•m torque evenly. Next, connect the AC input terminals (L1, L2, L3) to a properly rated circuit breaker (minimum 40 A) with appropriate cable gauges (8 AWG recommended). Remember to connect the grounding terminal securely to the cabinet earth busbar to ensure safety and reduce EMI. Additionally, wire the DC output terminals (P and N) to the servo amplifier DC bus input, using cables rated for 40 A with crimped ring lugs. For the control terminal block, connect the emergency stop and enable signals according to the FANUC connection manual. Finally, power on the unit and verify the output voltage measures between 283-325 VDC before enabling connected amplifiers.

Packaging List

• 1 x FANUC A06B-6077-H106 ALPHA Power Supply Module

• 1 x Terminal cover assembly (pre-installed)

• 1 x Connector plug for control signals (24-pin)

• 1 x Installation torque specification sheet

Note: No input/output cables, mounting screws, or circuit breakers are included. Certificates and warranty documents are not provided in this package.

Frequently Asked Questions (FAQ)

1. Which CNC systems are compatible with the FANUC A06B-6077-H106?
This power supply works with FANUC Series 0i, 16i, 18i, 21i, 30i, 31i, and 32i CNC systems that utilize ALPHA servo amplifiers – confirm your amplifier's DC bus voltage requirement (283-325 VDC).

2. Can the A06B-6077-H106 power both servo and spindle drives simultaneously?
Yes, it can supply DC power to multiple servo amplifiers and a spindle drive, provided the total connected load does not exceed 6.8 kW and 26 A continuous rating.

3. What protection features does this FANUC power supply include?
The module includes overload protection (output current limit), overcurrent shutdown (short-circuit detection), overvoltage clamp (excessive DC bus), and overtemperature fan control.

4. Is the A06B-6077-H106 compatible with 60 Hz power systems?
Absolutely. It supports both 50 Hz and 60 Hz input frequencies without any configuration changes – the internal rectification and filtering circuits adapt automatically.

5. How do I troubleshoot if the A06B-6077-H106 does not power up?
First, check the input circuit breaker and fuses. Then, verify the emergency stop relay is closed and the control signal enable is active. If the module still fails, inspect the internal LED status indicators (red = fault, green = ready).