Code 700147: Program number selection is being edited: NC start not possible.
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical Program number selection is being edited: NC start not possible. 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
A program has been started, but the menu for “Program number selection“ is in the process of being edited and is not yet closed. No program start is possible. 1. Close menu for editing the program number activation with finish change. Message is cleared. 2. Alternatively, the message can be cleared with the [RESET] or [Control OFF] key. The menu can be found under: Chapter 2.9 ‘Program number selection:’ on page 12
Source: CHIRON Error Message Overview, all series (Siemens control, V2.0.6, 2012)
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
About Chiron Siemens-Control CNC Alarms
Chiron controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code 700147 on the Siemens-Control CNC identifies one specific fault condition — its documented cause and the official corrective steps are listed above, sourced from Chiron's service documentation. Always confirm against the manual for your exact machine configuration and follow LOTO procedures before servicing.
Complete Alarm List: 545 Chiron Siemens-Control CNC codes.
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