Code 701549: Loader not ready for operation
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical Loader not ready for operation 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 function "with loader“ has been switched on, the machine is fully operational for loader operation but the loader does not signal that it is fully operational. The PLC input signal "loader ready for operation" is not present. The error message appears but has no effect on the machine. Lamp "With loader" flashes. 1. Check malfunction on loader. 2. Check output signal "from loader to machine" and the PLC input signal "Loader ready for operation". 3. Once the loader again signals fully operational the message is cancelled automatically. Information about loader malfunctions can be found in the operating instructions of the loader. Error messages Automation Loader not ready for operation
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 701549 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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