A06B-6127-H104 is a single-axis 400V class Alpha i high voltage servo amplifier. It is applied to medium and light load CNC axis control, and must be matched with compatible αi PSM power supply module for normal operation.

Part number is A06B-6127-H104, model code αiSV-40HV. It belongs to Alpha i series, manufactured by FANUC. This unit serves for small and medium power servo axes on machining centers, lathes and automatic facilities.

DC bus input voltage ranges from 565V DC to 679V DC. Rated input power is 2.8kW. External 24V DC power with ten percent tolerance supplies power for control logic, FSSB communication and cooling fan.Three-phase output voltage to servo motor reaches 480V AC. Rated output current is 9.1A RMS and peak current is 40A. Maximum output frequency is 400Hz. Full digital vector control supports position, speed and torque control modes. Regenerative braking function returns redundant energy back to DC bus circuit.

The amplifier adopts yellow metal housing and vertical panel mounting structure. Overall dimension width 60mm, height 305mm, depth 205mm. Unit weight is 5.0kg. Cooling system consists of replaceable axial fan and high efficiency heat sink.Operating temperature ranges from 0 degree Celsius to 40 degree Celsius. Storage temperature is between minus 20 degree Celsius and 60 degree Celsius. Working relative humidity keeps 5 percent to 95 percent without condensation. Protection grade is IP20 for cabinet internal installation.

It matches FANUC αi HV series servo motors. Corresponding power supply is 400V grade αi PSM module. Compatible CNC systems include FANUC 30i, 31i, 32i-B and 0i-MF, 0i-TF with 400V power option. The device adopts 100Mbps FSSB fiber bus communication. It supports absolute and incremental encoder feedback, equipped with built-in backup capacitor to maintain position data for about ten minutes without homing after replacement.

Built-in overcurrent protection triggers alarm AL-01. DC bus undervoltage and overvoltage generate alarm AL-04 and AL-07 respectively. Heat sink overheat alarm is AL-03 and fan abnormal failure corresponds to AL-02. The system also detects encoder fault and regenerative overload. Seven segment LED display on front panel shows real-time running status and fault codes.

Cut off system power and execute safety lockout procedure before operation. Install the module vertically and reserve no less than 50 millimeters ventilation space on top and bottom. Connect DC bus cable to αi PSM module and finish reliable protective grounding. Wire 24V control power and FSSB optical fiber cable strictly according to official definition. Inspect all connection tightness and clear historical alarms before power on.

High voltage remains inside the unit. Do not open the cover within ten minutes after power shutdown. All installation and maintenance work shall be conducted by qualified professional electricians. Only original matched cables and connectors can be used. Regular dust cleaning on fan and heat sink is required to guarantee stable heat dissipation.

Rated 2.8kW power and 9.1A current output meets medium light load working demand. Slim 60mm width design saves cabinet installation space. Internal position backup capacitor avoids homing operation after amplifier replacement. Fiber optic communication delivers fast signal transmission and strong anti-interference performance.