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    Fanuc Alarm 27: NO AXES COMMANDED IN G43/G44

    ByCNC Hub Team May 28, 2026

    Fanuc Alarm 027 (PS0027): NO AXES COMMANDED IN G43/G44 Fanus Control Model: Series 16 / 18 / 21 (e.g., 16-M, 18i-M, 21i-M) Description This alarm typically the system attempts . How to Fix Alarm Review the specif.

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  • CNC Alarms

    Fanuc Alarm 74: ILLEGAL PROGRAM NUMBER

    ByCNC Hub Team May 28, 2026May 28, 2026

    Fanuc Alarm 74: ILLEGAL PROGRAM NUMBER Fanus Control Model: 16/18/21 Fanuc Alarm Description The program number is other than 1 to 9999. Modify the program number.

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  • CNC Alarms

    Fanuc Alarm 73: PROGRAM NUMBER ALREADY IN USE

    ByCNC Hub Team May 28, 2026May 28, 2026

    Fanuc Alarm 73: PROGRAM NUMBER ALREADY IN USE Fanus Control Model: 16/18/21 Fanuc Alarm Description The commanded program number has already been used. Change the program number or delete unnecessary programs and execute program registration again.

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  • CNC Alarms

    Fanuc Alarm 72: TOO MANY PROGRAMS

    ByCNC Hub Team May 28, 2026May 28, 2026

    Fanuc Alarm 72: TOO MANY PROGRAMS Fanus Control Model: 16/18/21 Fanuc Alarm Description The number of programs to be stored exceeded 63 (basic), 125 (option), 200 (option), or 400 (option) or 1000 (option). Delete unnecessary programs and execute program registration again.

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  • CNC Alarms

    Fanuc Alarm 71: DATA NOT FOUND

    ByCNC Hub Team May 28, 2026May 28, 2026

    Fanuc Alarm 71: DATA NOT FOUND Fanus Control Model: 16/18/21 Fanuc Alarm Description The address to be searched was not found. Or the program with specified program number was not found in program number search. Check the data.

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  • CNC Alarms

    Fanuc Alarm 70: NO PROGRAM SPACE IN MEMORY

    ByCNC Hub Team May 28, 2026May 28, 2026

    Fanuc Alarm 70: NO PROGRAM SPACE IN MEMORY Fanus Control Model: 16/18/21 Fanuc Alarm Description The memory area is insufficient. Delete any unnecessary programs, then retry.

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  • CNC Alarms

    Fanuc Alarm 69: FORMAT ERROR IN G70–G73

    ByCNC Hub Team May 28, 2026May 28, 2026

    Fanuc Alarm 69: FORMAT ERROR IN G70–G73 Fanus Control Model: 16/18/21 Fanuc Alarm Description T Series;The final move command in the blocks specified by P and Q of G70, G71, G72, and G73 ended with chamfering or corner R. Modify the program.

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  • CNC Alarms

    Fanuc Alarm 67: CAN NOT ERROR IN MDI MODE

    ByCNC Hub Team May 28, 2026May 28, 2026

    Fanuc Alarm 67: CAN NOT ERROR IN MDI MODE Fanus Control Model: 16/18/21 Fanuc Alarm Description T Series;G70, G71, G72, or G73 command with address P and Q. Modify the program.

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  • CNC Alarms

    Fanuc Alarm 66: IMPROPER G–CODE IN G71–G73

    ByCNC Hub Team May 28, 2026May 28, 2026

    Fanuc Alarm 66: IMPROPER G–CODE IN G71–G73 Fanus Control Model: 16/18/21 Fanuc Alarm Description T Series;An unallowable G code was commanded between two blocks specified by address P in G71, G72, or G73. Modify the program.

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  • CNC Alarms

    Fanuc Alarm 65: ILLEGAL COMMAND IN G71–G73

    ByCNC Hub Team May 28, 2026May 28, 2026

    Fanuc Alarm 65: ILLEGAL COMMAND IN G71–G73 Fanus Control Model: 16/18/21 Fanuc Alarm Description T Series;1. G00 or G01 is not commanded at the block with the sequence number which is specified by address P in G71, G72, or G73 command. 2. Address Z(W) or X(U) was commanded in the block with a sequence number…

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  • CNC Alarms

    Fanuc Alarm 64: SHAPE PROGRAM NOT MONOTONOUSLY

    ByCNC Hub Team May 28, 2026May 28, 2026

    Fanuc Alarm 64: SHAPE PROGRAM NOT MONOTONOUSLY Fanus Control Model: 16/18/21 Fanuc Alarm Description T Series;A target shape which cannot be made by monotonic machining was specified in a repetitive canned cycle (G71 or G72).

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  • CNC Alarms

    Fanuc Alarm 63: SEQUENCE NUMBER NOT FOUND

    ByCNC Hub Team May 28, 2026May 28, 2026

    Fanuc Alarm 63: SEQUENCE NUMBER NOT FOUND Fanus Control Model: 16/18/21 Fanuc Alarm Description T Series;The sequence number specified by address P in G70, G71, G72, or G73 command cannot be searched. Modify the program.

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  • CNC Alarms

    Fanuc Alarm 62: ILLEGAL COMMAND IN G71–G76

    ByCNC Hub Team May 28, 2026May 28, 2026

    Fanuc Alarm 62: ILLEGAL COMMAND IN G71–G76 Fanus Control Model: 16/18/21 Fanuc Alarm Description T Series;1. The depth of cut in G71 or G72 is zero or negative value. 2. The repetitive count in G73 is zero or negative value. 3. the negative value is specified to Δi or Δk is zero in G74 or…

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  • CNC Alarms

    Fanuc Alarm 61: ADDRESS P/Q NOT FOUND IN G70–G73

    ByCNC Hub Team May 28, 2026May 28, 2026

    Fanuc Alarm 61: ADDRESS P/Q NOT FOUND IN G70–G73 Fanus Control Model: 16/18/21 Fanuc Alarm Description T Series;Address P or Q is not specified in G70, G71, G72, or G73 command. Modify the program.

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  • CNC Alarms

    Fanuc Alarm 60: SEQUENCE NUMBER NOT FOUND

    ByCNC Hub Team May 28, 2026May 28, 2026

    Fanuc Alarm 60: SEQUENCE NUMBER NOT FOUND Fanus Control Model: 16/18/21 Fanuc Alarm Description Commanded sequence number was not found in the sequence number search. Check the sequence number.

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  • CNC Alarms

    Fanuc Alarm 59: PROGRAM NUMBER NOT FOUND

    ByCNC Hub Team May 28, 2026May 28, 2026

    Fanuc Alarm 59: PROGRAM NUMBER NOT FOUND Fanus Control Model: 16/18/21 Fanuc Alarm Description In an external program number search, a specified program number was not found. Otherwise, a program specified for searching is being edited in background processing. Alternatively, the program with the program number specified in a one–touch macro call is not found…

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  • CNC Alarms

    Fanuc Alarm 58: END POINT NOT FOUND

    ByCNC Hub Team May 28, 2026May 28, 2026

    Fanuc Alarm 58: END POINT NOT FOUND Fanus Control Model: 16/18/21 Fanuc Alarm Description In an arbitrary angle chamfering or corner R cutting block, a specified axis is not in the selected plane. Correct the program.

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  • CNC Alarms

    Fanuc Alarm 28: ILLEGAL PLANE SELECT

    ByCNC Hub Team May 28, 2026May 28, 2026

    Fanuc Alarm 28: ILLEGAL PLANE SELECT Fanus Control Model: 16/18/21 Fanuc Alarm Description In the plane selection command, two or more axes in the same direction are commanded. Modify the program.

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  • CNC Alarms

    Fanuc Alarm 25: CANNOT COMMAND F0 IN G02/G03

    ByCNC Hub Team May 28, 2026May 28, 2026

    Fanuc Alarm 25: CANNOT COMMAND F0 IN G02/G03 Fanus Control Model: 16/18/21 Fanuc Alarm Description F0 (fast feed) was instructed by F1 –digit column feed in circular interpolation. Modify the program.

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  • CNC Alarms

    Fanuc Alarm 23: ILLEGAL RADIUS COMMAND

    ByCNC Hub Team May 28, 2026May 28, 2026

    Fanuc Alarm 23: ILLEGAL RADIUS COMMAND Fanus Control Model: 16/18/21 Fanuc Alarm Description (T series) In circular interpolation by radius designation, negative value was commanded for address R. Modify the program.

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