The (often appearing as Alarm 607) is a critical fault in Siemens CNC automation systems, specifically identifying a contouring error . This occurs when the actual position of an axis (like the X-axis) deviates from its commanded position by more than the predefined tolerance. Primary Causes
: Verify the DC bus voltage is present and within the expected range. Loose busbars between modules can also cause intermittent current errors. simodrive 611 error 607