Description
FANUC A20B-2100-0760 PCB / Servo Power Supply Control Module
The A20B-2100-0760 from FANUC is a servo power supply control PCB (printed circuit board) used in αi series CNC drive systems. It is a key internal module responsible for controlling and managing power distribution within servo power supply units.
Detailed Product Description (Website Ready)
The FANUC A20B-2100-0760 is a servo add-on / power supply control board designed for integration into FANUC αi servo power supply modules (PSM systems). It plays an important role in controlling the operation of the power supply unit, including monitoring, switching, and regulating power flow to servo and spindle drives.
This PCB is typically installed in PSMi / PSM-5.5i to PSM-15i series power supply modules, where it ensures stable DC bus generation and coordinated operation with spindle (SPM) and servo (SVM) modules.
It is not a standalone unit and is normally supplied as part of a complete power module assembly or used during repair/refurbishment of existing CNC systems.
Key Features & Functions
Servo Power Supply Control PCB
Manages internal control and operation of FANUC αi power supply modules.
Used in PSMi Series Modules
Commonly found in PSM-5.5i, PSM-10i, and PSM-15i systems for CNC machines.
DC Bus Regulation Control
Helps maintain stable DC output for servo and spindle amplifier systems.
System Communication & Monitoring
Coordinates operation between power supply, servo drives, and spindle units.
Industrial-Grade Reliability
Designed for continuous operation in CNC environments with heavy electrical load.
Technical Overview (General)
- Model: A20B-2100-0760
- Type: Servo Power Supply Control PCB
- Series: FANUC A20B-2100
- Function: Power control, regulation, and system coordination
- Application: CNC power supply modules (PSMi / αi systems)
- Installation: Internal PCB inside power supply unit
- Configuration: Non-standalone industrial component
Applications
- FANUC αi series CNC machines
- Servo power supply modules (PSM systems)
- Spindle and servo drive systems
- Industrial automation equipment
- Repair and refurbishment of FANUC drive units
Important Notes
- This PCB is discontinued by manufacturer in many cases and is commonly supplied as refurbished or exchange units.
- It is usually replaced only inside complete power supply modules, not as a standalone field component.
- Proper installation requires technical knowledge of FANUC CNC drive systems.