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Code END2: , END3, SP, and SPE). TOO LARGE DATA TO COPY

Issue Description & Safety Warning

The Fanuc 30i/31i/32i CNC has triggered a critical , END3, SP, and SPE). TOO LARGE DATA TO COPY alarm. Immediate attention from a qualified operator or maintenance technician is required to prevent secondary damage to the equipment or spoiled parts during the manufacturing cycle. Always ensure standard safety and LOTO procedures are followed before accessing electrical cabinets.

Official Troubleshooting Steps

Reduce the range of data to copy. Perform the copy operation several times, copying a smaller range of data at a time. The selected range of data exceeds the size of the copy buffer. TOO LARGE DATA TO PASTE Reduce the size of dat a to paste. An attempt was made to paste data whose size exceeded the free space of the sequence program. BIT ADDRESS IS REQUIRED Make sure that the address types match for the alteration operation. An attempt was made to alter a bit address to a byte address. BYTE ADDRESS IS REQUIRED Make sure that the address types match for the alteration operation. An attempt was made to alter a byte address to a bit address. ILLEGAL PMC ADDRESS Check the address to be input, and then enter it correctly. A character string was entered that was unacceptable as a PMC address. A wildcard (*) was specified in an inappropriate manner. Either "OLD ADDRESS" or "NEW ADDRESS" was not entered. THE ADDRESS IS READ-ONLY Enter a write-permitted address. An attempt was made to alter a write coil address to a write-prohibited bit address. An attempt was made to alter an address set in an output parameter of a functional instruction to a write-prohibited bit address. THE ADDRESS TYPE ARE MISMATCHED Check the types of the address in "OLD ADDRESS" and "NEW ADDRESS" and, if necessary, enter the correct address or addresses. The type of the addresses for "OLD ADDRESS" does not match that in "NEW ADDRESS". ***** DOSE NOT HAVE SYMBOL Define symbol data in "OLD ADDRESS". No symbol data is defined in "OLD ADDRESS". ***** ALREADY HAS SYMBOL Make sure that the address types match for the alteration operation. Symbol data is already defined in "NEW ADDRESS". CANNOT CUT FUNCTION BLOCK Use FANUC LADDER-III to edit function block. Cut nets which do not include any function block. An attempt was made to cut a net containing a function block. CANNOT COPY FUNCTION BLOCK Use FANUC LADDER-III to edit function block. Copy nets which do not include any function block. An attempt was made to copy a net containing a function block. CANNOT EDIT FUNCTION BLOCK Edit the program using FANUC LADDER-III. An attempt was made to edit an FB main program. CANNOT INPUT AT THIS SCREEN Set the address in the NET EDITOR screen. An attempt was made to set an address to the output section in a function block which is omitted. CANNOT EDIT INPUT/OUTPUT PARAM ADDRESS The input section of the input/output parameter in a function block cannot be edited. NO CONSTANT TO PARAMETER OF PLURAL TYPE No constant can be set when multiple input parameters are specified for a function block. OVERLAPPED COM If COME is missing, add it in proper position. If the COM is unnecessary, remove it. There is no COME that corresponds to this COM. END IN COM

Source: Fanuc Series 30i/31i/32i-A Maintenance Manual, Appendix A Alarm List — PMC alarms (B-64485EN/01)

Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.

About Fanuc 30i/31i/32i CNC Alarms

Fanuc controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code END2 on the 30i/31i/32i CNC identifies one specific fault condition — its documented cause and the official corrective steps are listed above, sourced from Fanuc's service documentation. Always confirm against the manual for your exact machine configuration and follow LOTO procedures before servicing.

Complete Alarm List: 85 Fanuc 30i/31i/32i CNC codes.

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