GE Fanuc A20B-8101-0420

  • Product Name: GE Fanuc A20B-8101-0420
  • Category: Servo Amplifier / Servo Drive Module
  • Series: αi Series / αiSV Series Compatible
  • Manufacturer: GE Fanuc Automation
  • Description: Digital AC servo amplifier module that drives spindle motors and feed axis motors in CNC machine tools. Provides high-precision current control for servo motors.
Category:
Description
  • Model Series: A20B-8101 Series — Servo Amplifier
  • Input Voltage: 200–240V AC, 3-phase
  • Output: 3-phase AC, variable frequency, variable voltage (0–300V DC bus equivalent)
  • Rated Current: Up to 30A per axis (model-dependent)
  • Control ModeCurrent mode (torque control), speed mode, position mode
  • Communication: FSSB (Fanuc Serial Servo Bus) — 20Mbps
  • Axes Per Module1 to 4 axes (depends on configuration)
  • Regeneration: Built-in regenerative resistor or optional regenerative unit
  • Material: Aluminum heatsink, metal enclosure, high-power IGBT modules
  • Function: Amplifies control signals from CNC to drive servo motors with high-speed response and precision
  • Industry Application: CNC machining centers, 5-axis machines, grinding machines, high-speed spindles
  • Installation Requirement: Requires dedicated cooling (forced air or liquid); mounting on heat-dissipating panel; proper cable shielding mandatory
  • Notes: Firmware version must match controller; IGBT modules are field-replaceable
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