Code 700755: Fill coolant system
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical Fill coolant system 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 "coolant level filter drum MIN" float switch signals "minimum". PLC input signal "Coolant level chip conveyor minimum" is not registered. The message has no effect and is indicated only as information. 1. Check the float switch "Coolant level chip conveyor MIN." and the PLC input signal. 2. Fill the coolant system. Observe the filling instructions! 3. When the float switch signals OK again (signal status = 1), press [CYCLE START] or [FEED START] key. Message is cleared. Error messages Cooling lubrication Fill coolant system
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 700755 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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