Code 701804: PLC MD incorrect (tool revolver coolant)
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical PLC MD incorrect (tool revolver coolant) 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 flow control device "Coolant low pressure (tool revolver)" or "Coolant high pressure (tool revolver)" was detected. Associated PLC machine parameter was not set. The error has the following effect: Feed Stop No axis movements possible. Read disable Control reads no further program blocks into memory. Flow control device, coolant low pressure (tool revolver) Set general machine parameter 14512[51]Bit0. Flow control device, coolant high pressure (tool revolver) Set general machine parameter 14512[51]Bit1.
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 701804 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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