Payload and Center of Gravity must be set 
correctly. The maximum allowed payload of 
the robot arm depends on the center of 
gravity offset. The center of gravity offset is 
defined as the distance between the center 
of the tool output flange and the center of 
gravity of the total payload (tool + 
workpiece).  
 
Example for UR5 – CB3 
 
The Payload and Center of Gravity must be 
always adjusted when a workpiece is picked 
up or dropped off. 
 
The script command from the Script Manual 
can be used for this purpose. 
"set_payload(m, cog)"