61307

Common Causes

• Parameter _MVAR contains an invalid or out-of-range value for the active measuring cycle
• Measuring cycle called with unsupported variant number in _MVAR parameter
• Parameter _MVAR not initialized or cleared from previous measurement operation
• Incorrect measuring cycle syntax or missing required variant specification
• Parameter _MVAR value conflicts with current tool offset or workpiece setup configuration

Troubleshooting Steps

1. 1Check the NC program block triggering the alarm and verify the _MVAR parameter is explicitly defined with a valid integer value supported by the specific measuring cycle being used
2. 2Review Siemens documentation for the active measuring cycle to confirm permissible _MVAR range and cross-reference against the current parameter value in the program
3. 3Reset the _MVAR parameter to a known good default value or clear it and reinitialize before the next measuring cycle call
4. 4Inspect the complete measuring cycle call syntax including all required arguments and ensure the variant specified matches the machine configuration and probe type
5. 5Verify machine parameters related to measuring cycles (_MVAR, probe configuration, and tool offset settings) match the workpiece setup and current job requirements