Code 700432: Re-approach Z-axis home position (clutch released)
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical Re-approach Z-axis home position (clutch released) 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
Cancel the message Safety clutch Z-axis disengaged 1. Switch to NC manual mode and reference point. 2. Press [Z] key. 3. Start the reference point approach with the [ + ] key. (Precondition: The manufacturer cycle REFPKT_ASUP is available) The Z-axis moves with reduced speed (10%) in (+) direction until limit switch "Z-axis reference point" is reached. (The starting position of the limit switch cam is at -10 mm (in front of the zero point) and moves to + direction). After reaching the limit switch cam, the movement command is disabled and message 700401 is output. ‘Switch off main switch (coupling triggered)’ on page 263
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 700432 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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