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A06B-6079-H208

FANUC A06B-6079-H208: Beyond the User Manual

The FANUC A06B-6079-H208 is a Servo Amplifier module, SVM2-80/80. This module drives a servo motor of the 200V input series. It is a 2-Axis amplifier, and can be used with Type A or Type B interfaces. The module weighs approximately 7.0 Kg. Its external dimensions are 380 x 90 x 307 millimeters. It has a rated output current [Arms] of 18.7 and a nominal current limit [Ap] of 80.

One common alarm for the A06B-6079-H208 is Alarm 9. When this occurs, the M-Axis has an over current caused by a servo drive or motor fault. If you have an Alarm 9 with a dot, then that is an M-Axis IPM alarm, and you should replace or repair your A06B-6079-H208.

Below is the A06B-6079-H208 wiring diagram for ground cable connections:

A06B-6079-H208 Wiring Diagram
A06B-6079-H208 Wiring Diagram

The A06B-6079-H208 converts alternating current to direct current in the converter section, and exercises variable motor speed control by PWM control based on switching by the six transistors in the inverter section. Switching noise is generated by the 6 transistors turning off and on at high speeds. Each time a transistor turns on or off, noise current flows to ground through stray capacitance between the cable or motor and ground. The value of this noise current depends on the stray capacitance and transistor switching speed. The frequency band of the amplifier’s noise is about 30-40 MHz.

The presence of this noise means that cost-effective measures should be taken to reduce its level. Noise problems prevented prior to operation can help reduce costs over the lifetime of the installation. The following precautions should be taken when installing your A06B-6079-H208.
– Separate power lines and motor power lines from signal lines.
– Contain power lines and motor power lines in a metallic conduit.
– Perform appropriate grounding installation including grounding wire connections. This will also serve to prevent electrical shock due to leakage currents.
– Grounding wires should be as thick and as short as possible.

Noise can affect things like radio communication, refrigeration, telehones, fax machines, and essentially any electronics nearby.

MRO Electric stocks new and refurbished A06B-6079-H208 Servo Amplifiers. If you would like more information or to purchase a spare or replacement drive, please call 800-691-8511 or email sales@mroelectric.com.
A06B-6079-H208
A06B-6079-H208