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External Axis - Precision

niklai
niklai ✭
in Robot Controller

Hi,

I work with a IRB 1600 robot and a IRC5 controller. Added to the robot, is an external axis, which is a MTC 250 rotary table.

I'm looking for a parameter and/or instruction that will make the table's target position more accurate. Actually, when I ask the table to move to, say, 0?, it goes to 0.02. When I ask it to go to 40.0 degrees, it goes to about 40.08 degrees.

I'm used to work with Mitsubishi robots, which offer an instruction named FINE that allow the programmer to specify the number of pulses in which the table (or any other joints) will stop. If set to 1, the table will stop only when it is in ? 1 pulse of the target position.

Thanks for your help.

Nicolas.

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