Omron Sysmac NJ Series User Manual page 20

Safety Precautions
Operation
Do not remove the SD Memory Card during operation when you use the robot control
function with this product.
Doing so causes the robot control function to stop due to an error.
The V+ program files and the robot setting files in the SD Memory Card are required
for the operation of the Robot Control Function Module. Do not edit or delete the files if
you are not sure that the operation is not affected even when the files are edited and
deleted.
Always confirm how the file operations affect the control before you perform file opera-
tions in the SD Memory Card.
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NJ-series Robot Integrated CPU Unit User's Manual (O037)