| Alarm | Probable cause (per manual) | |-------|----------------------------| | "Axis Z1 following error" | Guide bushing stuck, clean and grease | | "Hydraulic pressure low" | Filter clogged or oil below minimum | | "Spindle encoder battery low" | Replace battery (CR2477 or similar, page 6-12) | | "Tool not clamped" | Check M-code sequence; T-clamp must precede spindle start | The manual’s programming section emphasizes polar coordinates for Swiss-type work:
Example – Drilling a cross hole (C-axis positioning): emco star manual