Fanuc CPU card reference Fanuc A20B-3300-0170 for sale. This is a Fanuc CPU pcb for Fanuc CNC Controls series i (Fanuc 16i, 18i). This board Fanuc A20B-3300-0170 is mounted on Fanuc loader pcb located in the Fanuc yellow basic uniut. On this CPU board you will be able to insert a DRAM module.
Fanmotors are installed in the uppermost portion of theCNC control unit. Each fan motor is attached with an alarm detector circuit, which notifies the CNC of a fault such as the stoppage of the fan motor, thereby issuing this alarm. You need to replace periodically your
Fanuc Fan motors.