FANUC A16B-2300-0100 is a control printed circuit board for early FANUC Alpha PSMR resistance-discharge power supplies. FANUC documentation lists it for the PSMR-3 A06B-6081-H103 and PSMR-5.5 A06B-6081-H106, revision B or earlier.

This board manages control-power and protection functions inside the compatible PSMR module. It is an internal PCB, not a complete power supply. A /02A revision has been observed, but the complete suffix and host-module revision must be checked.

A16B-2300-0100 Product Information

PSMR Control and Protection Functions

The A16B-2300-0100 forms the control section of the compatible PSMR power supply. It supervises control-power and protection-related circuitry while operating with the model-specific wiring board and power components. Module alarms or power faults should be diagnosed before replacing the PCB.

Revision and System Compatibility

Confirm A16B-2300-0100, its full revision suffix, the complete A06B-6081 host-module number and the unit revision. Also compare the associated wiring board, connectors, fuse arrangement and mounting points. A16B-2001-0890 or another visually similar PCB is not automatically a plug-in substitute.

Testing and Installation Notes

REACO CNC checks the label, connectors, fuse circuit, solder joints and major components, followed by electrical and functional testing. Qualified personnel must isolate power and allow the DC circuit to discharge before opening the PSMR module.

Related resources: FANUC circuit boards, FANUC drives and power modules and FANUC CNC repair services.