What does the M7039 error message mean and how can the work area blocking cylinder be prevented from abnormally descending?

Please provide more details about the machine code being used and the configuration of the cylinder. Is the cylinder designed to descend during operation or is it intended to remain
The solution for the M7039 error is to manually lower the cylinder and verify that it moves freely. If the cylinder only moves when lowered, it may be stuck and the maintenance team should be consulted for further investigation and repair