If the screen stubbornly remains on "Waiting for NCK Connection," you may need to force a reset. On the CCU unit (usually integrated into the drive module), there is a reset button or a toggle switch (often labeled S1 or S3 depending on the revision).
This is rarely a software glitch; it is almost always a hardware or power issue. The troubleshooting process is a descent from the easy fixes to the expensive ones. sinumerik 810d waiting for nck connection
: There might be a problem with the communication cables or the network configuration that connects different parts of the CNC system. If the screen stubbornly remains on "Waiting for