FANUC A06B-6091-H002: CNC Power Failure Backup Module

Keep your CNC machine safe during a power cut. This backup module provides emergency power. It allows the machine to finish its cycle or stop safely. It protects your work and your equipment.

Complete Product Specifications

FANUC Part Number: A06B-6091-H002

Product Name: Power Failure Backup Module

Electrical Input:

Input Voltage: 400 V AC, 3-Phase

Input Frequency: 50 / 60 Hz

Backup Function:

Purpose: Provides temporary DC bus power to servo amplifiers.

Typical Hold-up Time: Several seconds to minutes (system dependent).

Output: Maintains the DC link voltage for connected drive modules.

Physical & Installation:

Module Weight: 4.08 kg (9.00 lbs)

Dimensions: Standard module size for FANUC drive units.

Mounting: Vertical or wall-mounted within the amplifier enclosure.

Cooling Method: Air cooled (convection or system fan).

Environmental & Safety:

Operating Temperature: 0°C to +55°C

Storage Temperature: -20°C to +80°C

Protection Features: Overload (OL), Overcurrent (OC) protection.

System Compatibility:

Compatible With: FANUC Alpha series and other drive systems requiring backup.

Integration: Installs into the main amplifier frame alongside power supply modules.

Frequently Asked Questions

Q: How long does this module provide power during an outage?

A: The hold-up time is short, typically just a few seconds to a minute. Its main job is not to run the machine, but to provide enough energy for the control system to save its state and for the servos to stop without crashing.

Q: Can this module charge its own backup battery or capacitor?

A: Yes, the module contains large capacitors (or sometimes a battery backup system) that are kept charged while main power is on. It instantly supplies power from these when the main input fails.

Q: Is this a replacement for a UPS (Uninterruptible Power Supply)?

A: No. This is a dedicated, integrated module for the drive system only. A full-building UPS protects the entire machine from sags and outages. This module is a last-line defense specifically for the servo drives.

Q: My machine has a 200V AC system. Can I use this 400V module?

A: No. You must use the backup module rated for your machine's main input voltage. Using a 400V module on a 200V system will not work and could be dangerous.

Q: How do I know if my old backup module has failed?

A: Common signs include an alarm on the drive unit related to "DC Link Low Voltage" during normal operation, or the machine immediately losing position and faulting during even brief power flickers.

Package Contents

1 x FANUC A06B-6091-H002 Power Failure Backup Module.

Shipping & Warranty

Fast Delivery: Shipped worldwide via FedEx, UPS, or DHL.

Warranty: Your purchase is protected by a 12-month warranty.

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