Code 700154: Protective door(s) not open
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical Protective door(s) not open 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
For closing the automatic protective doors, final position "Protective doors open" has not registered. It is not possible to close the protective doors. 1. Press [RESET] key. Message is cleared. 2. Check the end position of the protective doors and the PLC input signals. The function "with loader" has been activated and the signal “Load / Unload“ has been given, but the protective doors does not report “open”. The PLC input signals "Protective door (left/right) opened“ are not available. The PLC input signals "Test protective door (left/right)“ are not available. Cause 1: Cause 2: Execution of the pending functions is not continued. The functions are continued as soon as the signal „Protective door opened“ is available again. Loader operation is impossible. 1. Check activation of "Open protective door“, the associated "Door opened“ proximity switches and the respective PLC input signals. 2. Check signals "Test protective door (left/right)“ of the safety switches and the respective PLC input signals.
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 700154 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.
Have a better solution?
Help the industrial community by sharing your repair experience for code 700154.
Need a searchable reference for more Chiron Siemens-Control CNC manuals?
We structure equipment manuals into searchable code, title, cause, solution, safety note, and source-reference data. Send a PDF and example searched codes when you need public pages, private search, or structured exports.
Space reserved for Google AdSense / Industrial Affiliate Links
Monetization target for 2026