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(2)  Method for connecting to and removing from the terminal block 
●  Connecting the I/O plug 
Be sure to keep up the lever, insert the plug into the terminal block. 
Make sure that the I/O plug is securely inserted into the terminal block and that the left and right 
levers are locked on the protrusions of the terminal block. 
 
 
 
●  Removing the I/O plug 
You can remove the plug by lowering the lever. 
If it is difficult to remove, lower the left and right levers alternately little by little.