Atlas Copco Power Focus 600 - Two Step

Power Focus 600 EN
© Atlas Copco Industrial Technique AB - 9836 4954 01
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Fine-tuning the TurboTight strategy
If the TurboTight strategy gives unwanted results a tip is to look at how the
Rundown complete is set. A Rundown complete set too high could give the
TurboTight strategy too little time to work on the needed calculations in the
Tightening step and result in an overshoot. The ambition should be to set the
Rundown complete as close to snug as possible.
A Rundown speed set too high could also cause the TurboTight not to have
enough time to work on the needed calculations in the Tightening step resulting
in an overshoot. This is even more important if the joint is very stiff.
Quick step
Quick step is a tightening strategy used to reduce the joint’s preload scatter by
adding an initial step with a given torque and speed, and then reducing the tar-
get speed in the final step.
Parameter Description Default value
First torque Target torque for the first step.
First torque Torque during first step.
{ , : noprofile in element [entry]}
{ , : noprofile in element [p]}
80% of Target Torque
First speed Target speed for the first step.
First speed Tool speed during first step.
{ , : noprofile in element [entry]}
{ , : noprofile in element [p]}
50% of Tool max speed
Two step
The Two step strategy is very similar to the Quick step strategy except that it
adds a small time delay between the first step and the final step to further coun-
teract short-term relaxation effects in the joint.
{ , : profile5 in element [p]}This behaviour emulates the old Power Focus’
Two stage functionality.