Code 701412: PLC_MD_-wrong (mist collector)
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical PLC_MD_-wrong (mist collector) 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 PLC machine parameter "Without monitoring the filling level exhaust fan" (14510[48] bit 2) was set to (1), but a PLC input signal of an exhaust fan float switch (minimum, maximum, overflow) is registered. The PLC machine parameter must be set to (0), "With filling level monitoring", if there is an exhaust fan with filling level control in the machine. Feed Stop Read disable 1. Set the PLC machine data in accordance with the exhaust fan version. 2. As soon as the PLC machine parameter has been correctly set, switch off the control with [Control OFF] and switch it on again with [Control ON]. Message is cleared. Error messages Suction system PLC_MD_-wrong (mist collector)
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 701412 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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