Code 700145: Main spindle speed control
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical Main spindle speed control 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
This message appears on the spindle accelerating until the programmed speed is reached. Or on braking until standstill is reached or on speed breakdown because of overloading. Feed Stop Read-in enable missing. 1. Check spindle enable and spindle signals. 2. Check tool, feed and cutting data. 3. Check the motor output and drive controller. 4. As soon as the malfunction is remedied, press one of the following keys: [FEED START] [CYCLE START] Message is cleared and the machining program can be continued.
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 700145 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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