Code MEMO-158: Type converted in %s
Issue Description & Safety Warning
The Fanuc R-30i Series Robot Controller has triggered a critical Type converted in %s 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: When loading the specified KAREL program the variable type definition required conversion. The program was loaded and converted as needed. Remedy: If conversion was expected, then no action is required. If conversion was not expected, then maybe the loaded program was not the version of the program that was needed. Check for other versions of this program and load them as needed.
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 MEMO-158 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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