KFASLLC: Fanuc 16MB 16TB 18MB 18TB controls

KFAS: Fanuc CNC Parts & Repair

Fanuc Series 16/ 18
Fanuc Series 16-TB
Fanuc Series 16-MB
Fanuc Series 18-TB
Fanuc Series 18-MB

Perform SRAM Data Backup

Identify Fuses

Fanuc Series 16/ 18 Troubleshooting Information & Procedures

How to replace control cooling fan

Watch video on how to replace cooling fan

CRT Blank (Nothing is displayed on the CRT)

Program Errors (P/S Alarms)

Alarm List and Description

Absolute Pulse Coder (APC) Alarms (Alarm 300, 301, 302, 303, 304, 305, 306, 307, 308, 309)

Troubleshooting Steps Alarm 301 to 305 Alarm 306 to 308

Serial Pulse Coder (SPC) Alarms (Alarm 350, 351)

Troubleshooting Steps Alarm 350 Alarm 351

Servo Alarms (Alarm 400, 401, 404, 405, 407, 409, 410, 411, 413, 414, 415, 416, 417, 420, 421)

Troubleshooting Steps Alarm 400 Alarm 401 Alarm 404 and 405

Alarm 410 Alarm 411 Alarm 414 (with A06B-6066-Hxxx servo)

Alarm 414 (with A06B-6079-Hxxx or A06B-6096-Hxxx servo)

Alarm 416 Alarm 417

Over travel alarms (Alarm 500, 501, 502, 503,, 504, 505, 506, 507, 508, 509, 510, 511)

Overheat alarms (Alarm 700, 701, 704)

Troubleshooting Steps Alarm 700, 701 How to replace control cooling fan

Serial Spindle Alarms (Alarm 749, 750, 751, 752, 754, 761, 762, 764, 771, 772, 774)

Troubleshooting Steps Alarm 749 Alarm 750 Alarm 751 and 761

(with A06B-6088-Hxxx spindle unit)

(With A06B-6064, 6063 spindle unit)

System Alarms (Alarm 900, 914, 915, 916, 920, 922, 924, 930, 950, 951, 972, 973, 974, 975)

Troubleshooting Steps Alarm 900 Alarm 914, 915 Alarm 916 Alarm 920, 922

Alarm 924 Alarm 930 Alarm 950 Alarm 951

Alarm 972 Alarm 973

Hardware
16M/ 16T Main Boards
A16B-3200-0010: Main-A 4 axes
A16B-3200-0170: Main-A 4 axes
A16B-3200-0110: Main-B 6 axes

18M/ 18T Main Boards
A16B-3200-0160: Main-B 6 axes
A16B–2202–0860: Main-A 4 axes

FROM software Modules
(For CNC system,
servo system,
graphic system,
Additional SRAM)
A20B–2902–0080 FLASH ROM MODULE: 4MB, ADDITIONAL SRAM: 512KB
A20B–2902–0081 FLASH ROM MODULE: 4MB
A20B–2902–0082 FLASH ROM MODULE: 2MB
A20B–2902–0090 FLASH ROM MODULE: 8MB, ADDITIONAL SRAM: 2MB
A20B–2902–0091 FLASH ROM MODULE: 8MB
A20B–2902–0092 FLASH ROM MODULE: 6MB
A20B–2902–0093 FLASH ROM MODULE: 8MB, ADDITIONAL SRAM: 512KB
A20B–2902–0094 FLASH ROM MODULE: 6MB, ADDITIONAL SRAM: 512KB

Power Supply
A16B-1212-0900
A16B-1212-0901
A16B-1212-0870
A16B-1212-0871

DRAM Module (RAM for the CNC)
A20B–2901–0940 RAM: 6MB
A20B–2901–0941 RAM: 4MB
A20B–2901–0942 RAM: 2MB

PMC Module
A20B–2901–0960 PMC MODULE: PMP2 + SLC
A20B–2901–0961 PMC MODULE: PMP2

CRTC Module (CRT text display)
A20B–2902–0270 CRTC MODULE: 14" CRT
A20B–2902–0271 CRTC MODULE: 9" CRT
A20B–2902–0272 CRTC MODULE: VGA
A20B–2902–0273 CRTC MODULE: 14" CRT
A20B–2902–0275 CRTC MODULE: VGA
A20B–2902–0276 CRTC MODULE: 9" CRT
A20B–2902–0277 CRTC MODULE: 9" CRT
A20B–2902–0278 CRTC MODULE: VGA

Spindle Control Module
A20B–2901–0980 SERIAL + ANALOG SPINDLE LSI
A20B–2901–0981 SERIAL SPINDLE LSI
A20B–2901–0982 ANALOG SPINDLE LSI

Servo Control Module
A20B–2902–0060
A20B–2902–0061

Graphic Function Board
A20B–8200–0010
A20B–8200–0011

Option 1 board
A16B–2200–0913 Remote buffer
A16B–2200–0914 DNC1
A16B–2200–0919 Graphic (CAP–II)
A16B–2200–0918 Graphic +Remote buffer
A16B–2200–0916 Graphic + DNC1

16M/16T Option 2 Board for Main-A
A16B–2202–0400 CPU for 2 path ctrl + Additional axis
A16B–2202–0401 Additional axis
A16B–2202–0890 CPU for 2 path ctrl + Additional axis
A16B–2202–0891 Additional axis

16M/16T Option 2 Board for Main-B
A16B–2202–0850 CPU for 2 path ctrl + Additional axis
A16B–2202–0851 Additional axis

18M/18T Option 2 Board for Main-A
A16B–2202–0853 CPU for 2 path ctrl + Additional axis

Option 3 Board
A16B–3200–0054 PMC–RC
A16B–3200–0055 PMC–RC+CAP
A16B–3200–0057 CAP

I/O Cards (Source Type Output)
A16B–2200–0981 DI : 104 DO : 72 With high–speed skip
A16B–2200–0982 DI : 80 DO : 56 With high–speed skip
A16B–2200–0983 DI : 40 DO : 40 With high–speed skip
A16B–2200–0986 DI : 104 DO : 72 Without high–speed skip
A16B–2200–0987 DI : 80 DO : 56 Without high–speed skip
A16B–2200–0988 DI : 40 DO : 40 Without high–speed skip
A16B–2202–0720 DI : 104 DO : 80 With high–speed skip
A16B–2202–0721 DI : 104 DO : 72 With high–speed skip
A16B–2202–0722 DI : 80 DO : 56 With high–speed skip
A16B–2202–0723 DI : 40 DO : 40 With high–speed skip
A16B–2202–0725 DI : 104 DO : 80 Without high–speed skip
A16B–2202–0726 DI : 104 DO : 72 Without high–speed skip
A16B–2202–0727 DI : 80 DO : 56 Without high–speed skip
A16B–2202–0728 DI : 40 DO : 40 Without high–speed skip
I/O card add on board A20B–8001–0150
DI : 52 DO : 40 To be used together with
the above card (0720) or (0725)

I/O Cards (Sink Type Output)
A16B–2202–0690 DI : 104 DO : 72
A16B–2202–0691 DI : 80 DO : 56
A16B–2202–0692 DI : 40 DO : 40
A20B–1005–0420 To be used with the above I/O card