Code 701546: Robot: Fault connection (robot - DP-coupler)
Issue Description & Safety Warning
The Chiron Siemens-Control CNC has triggered a critical Robot: Fault connection (robot - DP-coupler) 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
a) Profibus connection between the DP coupler and the loader is missing. b) Loader control is still switched off. The message will be displayed as long as the connection is faulty. There is no exchange of signals between the machine and the robot. a.) Check the Profibus connection “DP coupler“ to “robot“. b.) Switch robot control on.
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 701546 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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