Code SVGN-158: Thk%s,Push(Exp%s,Aval%s,Max%s)mm.
Issue Description & Safety Warning
The Fanuc R-30i Series Robot Controller has triggered a critical Thk%s,Push(Exp%s,Aval%s,Max%s)mm. 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: This alarm provides information to identify the root cause of the pressure shortage alarm. Parameters meanings are: Thk: Thickness expected (value specified in pressure schedule) Push.Exp: Pushing depth expected (larger of pushing depth in pressure schedule and speed depth) Push.Aval: Pushing depth available (thk + current close stroke limit) Push.Max: Pushing depth maximum (thk + standard close stroke limit) Remedy: If thickness and/or pushing depth are incorrect, then adjust them. If stroke limit has become too small, install new tips.
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 SVGN-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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