Code CPMO-043: GTF num_tf != 1 (G: %d^2)
Issue Description & Safety Warning
The Fanuc R-30i Series Robot Controller has triggered a critical GTF num_tf != 1 (G: %d^2) 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
Cause: An Internal INTR error has occurred. This class of error should not be encountered during normal operation. Remedy: The system might have been corrupted. This might have been caused by any of a number of reasons including: Incorrect loading and setup loading incompatible options, mixing software version when adding options and other memory corruption problems. The following is a list of possible remedies: 1. Perform a Cold start. 2. Perform an Init start and set up the robot again 3. Confirm that any options or additional software not on the original software distribution media is the same version number. If the main system software was supplied on several disks or memory cards, make sure that you are using a matched set. Also make sure that the installation manual being used is for this version of software. If any of the software version is not matched, a complete re-load with the correct software will be necessary. 4. Confirm that no incompatible or mutually exclusive option has been loaded. 5. Perform a full software reload. 6. If the error is not cleared, document the events that led to the error and call your local FANUC representative.
Source: FANUC Robot R-30iA Alarm Code List Operator's Manual
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
About Fanuc R-30i Series Robot Controller Alarms
Fanuc controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code CPMO-043 on the R-30i Series Robot Controller 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: 6553 Fanuc R-30i Series Robot Controller codes.
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