Code 700209: Fault 2 cooling unit (spindle)
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical Fault 2 cooling unit (spindle) 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
The main spindle cooling unit has a fault. PLC input „Malfunction 2 cooling unit (spindle)“ is not present. Error message appears immediately. Exception: The effect of the malfunction only manifests itself 10 seconds after the pump (cooling unit) is switched on. Feed Stop and Spindle Stop, as far as no thread-cutting is pending. 1. Remedy malfunction on the cooling unit. 2. Once the malfunction has been remedied, press the [RESET] key in manual mode or deactivate the control with the [Control OFF] key. Message is cleared. Please refer to the cooling unit operating instructions for detailed instructions on malfunction causes.
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 700209 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 700209.
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