Dear guys,

I'm using the S7-1200 and Yaskawa servo drive SGDM-04ADA for a motion control. And my application is Position control.

Somedays ago, it was working. But from yesterday, i don't know why when i tried to diagnostic, it has the error messgae: Axis has already been enabled by another "MC_Power" instance. (General).

I attached some picture in the file below, any one please give me the solution for this case. 

I'm a new bie so sorry for this inconvenience.

Many thanks.

Is the drive maybe enabled by the control panel? Either the control panel of the technology object in the PLC or maybe there is also something similar available directly on your Yaskawa drive. The status screenshot says it is activated by control panel. If this is the case you cannot control the axis via the PLC open commands from the PLC user program.