Code 701959: Fixation gate place not fixed
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical Fixation gate place not fixed 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
It was attempted to load/unload a tool from the tool gate, but the tool gate is not yet fixed. The PLC input signal "Tool gate fixation fixed“ is not registered. Loading/unloading is stopped. If the sensor signals OK again within a monitoring time of about 12 seconds, the machine continues to run. After the monitoring time has elapsed, the error must be acknowledged. 1. Check the sensor and the PLC input signal "Tool gate fixation fixed". 2. Check the actuation and the valve "Fix tool gate fixation". 3. As soon as the malfunction is remedied, press one of the following keys: [FEED START] [CYCLE START] Message is cleared. The diagnostic overview of the sensor signals can be found under: Chapter 2.2 ‘Tool changer diagnostics menu’ on page 11
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 701959 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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