Fanuc A20B-8101-0401 for 30iA 31iA 32iA |KFASLLC

KFAS: Fanuc CNC Parts, Service, & Repair

Fanuc 31i-A A20B-8101-0401

A20B-8101-0401 or A20B81010401 Main board is commonly used in Fanuc 30iA, Fanuc 31iA, Fanuc 32iA controls.

Connector number & functions
COP10A-1, COP10A-2: Servo amplifier (FSSB)
CA55                               : MDI
JD56A                             : RS-232C serial port 1/serial spindle
JD54                                : RS-232C serial port 2/USB
JA40                                : High-speed DI
JD51A                             : I/O link
JA41                                : Serial spindle
CPD16A                         : DC24V-IN
JGM                                 : Back panel interface
CA79A                            : Video signal interface (10.4"/12.1”LCD)
CA98                               : Video signal interface (15" LCD)
CA88A                            : PCMCIA interface
CD46L                            : USB interface
CK20A                            : Soft key (horizontal type)
CK21A                            : Soft key (vertical type)
CA87A                            : Inverter (for 10.4" LCD)
                                            Fan adapter (for 12.1”/15"LCD)
CD38S                            : Ethernet
TP2 or CA95                  : Touch panel interface
CPD12                            : Inverter interface (12.1”/15"LCD only)
CA75 or CA113             : Back-up unit interface
CA76                               : Buzzer interface

System Alarms List

Main Board 7-Segment LED