Fanuc 10 & 11

Alarm codes for Fanuc 10 & 11 SYSTEM masterboards. On the 7 segment display, the system main board counts from F down to 1 (which is operating normally).

Error Code Descriptions
A
MDI connection failure
• Check optical cable connection and connector of CRT/MDI unit.
• Replace master PCB, MDI PCB, or optical fiber cable.
• Check optical interface ( MDI/CRT ~ Master PCB
C
MDI failure (incorrect ID number)
• Check the type ( 9”, 14”, etc. ) of CRT/MDI unit or the edition number of NC software.
• Connection unit of operators panel or its connecting cable is defective.
• Change MDI/CRT PCB, Operator’s I/O PCB
E
System Error
• Loose contact at connector of PCB’s to master PCB.
• Replace (1) Master PCB, (2) NC software ROM, or (3) ROM board.
• Check message at CRT.
• No message on CRT – Clear all memory.
• Wrong combination of ROM chips in system. Check Option Data Sheet against S/W ROM set.
• Wrong option parameters. May need extra RAM chips.
F
Connection failure of connection unit or I/O cards D1 ~ D3.
• Check the optical fiber cable connection of these units and connectors.
• Replace master PCB, connection unit, I/O cards D1~D3, or optical fiber cable.
• Optical Interface ( I/O ~ Master PCB ).IF01A PCB plugged into wrong slot in I/O rack.
• Failed I/O module in I/O base unit
H
Different type of above mentioned unit ( incorrect ID number )
• Check the above inputs for their specified types or check the edition number of NC software.
• Connection of Conn. Unit 2 or its connecting cable (flat ) is defective. Conn. Unit 1 ~ 2.
J
PC or interface converter does not function ( while waiting for answer )
• Check if PMC ROM cassette, PMC RAM board or interface converter is mounted on master PCB; or replace the above PCB.
• Bad ladder or blank PMC cassette. Clear PMC RAM to correct.
L
Waiting for PMC ready
• Replace PMC ROM, PMC ROM cassette, or PMC RAM board.
• Check the PMC program ( bug in program ).Loose contact at I/O module ( pos. etc. )connector to back panel.
 
b RAM check error. Transfer error through optical fiber cable.
• Replace the master PCB or ROM/RAM board additional memory.
• Wrong combination of ROM chips in system. Check Option Data Sheet against S/W ROM set.
• Check alarm LED of the units connected by optical fiber cable.
• Replace master PCB, MDI PCB, connection unit PCB, I/O unit, or optical fiber cable (replace PCB with alarm LED lit.)
• Replace PMC RAM if using PC debug. (PMC RAM board).
• Loose connection of custom LSI’s on PCB’s.
• Wrong program in PMC RAM board. Clear RAM to correct.
• SW ( Write Enable ) of PMC RAM was OFF when turning power on.
• Problem with contact of connector of Master PCB to I/O unit.
• Problem with ACP board.
• Failure of System s/w EPROM’s.
• Failure of CRT/MDI power supply – check +5 on CA3, pins 4,5,6 or CP23, pins 1,2; +24 on CD1, pin 14 or CP23, pins 5,6
 
d Get when NMI occurs continually. Either RAM Parity or the power off signal occurs
• Check cable J91 between the Input Unit and Power Supply Unit, or for a failed Input Unit.
• Replace master PCB, connection unit, I/O cards D1~D3, or optical fiber cable.
• Optical Interface ( I/O ~ Master PCB ).
• IF01A PCB plugged into wrong slot in I/O rack.
O
( IPL mode )
• If unable to get out of IPL mode, change MDI PCB
1 Normal operation in progress
4  Bad ACP daughter board
• Replace ACP daughter board
8 On first power up. Problem caused by clock, custom LSI, CPU, BAC, or master PCB
• Replace the appropriate board (master PCB)
 
BLANK (All segments unlit)
• Power supply

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  • Exchange -> Emergency breakdowns; swap the bad for the good immediately. Order Monday to Friday 9am to 4.30PM to ship same day! 
  • Repair -> Save money avoid paying deposit, keeping your own unit with known history. Current clean, inspect, repair and test turnaround 24-48 hours (normal). 
  • Surplus -> Either for stock critical parts or for drives that are not repairable or exchangeable due to burn outs, corrosion, etc.

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