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Basic Functions

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3.6.5.1 Select which trace to display

The controls in the top of the Trace viewing window is used to select which cycles to show traces for and

which quantities to show for these cycles. You can also save and open traces from both file and the TC.

Select cycle

Select the bolt you are interested in by use of the Station and Bolt fields. Select the spindle used to

tighten the bolt by use of the Spindle field. “All” means that the trace for selected Bolt is viewed

regardless of which spindle was used to tighten the bolt.

To view traces for a particular spindle, regardless of which bolt the spindle tightened, select “All” in the

Bolt field and then select the spindle in the Spindle field.

Quantities

Select which quantities you want to display for the trace by use of the three menues on the upper right

side of the trace viewing window (Bottom axis, Left axis and Right axis). You can study one or two

different quantities of the trace against a third quantity.

For the two vertical axis, the following quantities can be selected:

 Angle - Views the recorded angle values.

 Current - Views the recorded current values.

 Current as T - Views the recorded current values scaled as torque using the values of the spindle

setup parameters Gear Ratio and T/C factor from when the cycle was executed.

 Torque - Views the recorded torque values.

 Gradient - Views the recorded gradient values.

 Pos. Angle - Views the recorded angle values filtered so that all angle movements are positive, i.e.

the angle of the cycle is always increasing, even if the bolt was moving backwards.

 Pos. Torque - Views the absolute values of the recorded torque values.

If Advanced view is enabled it is also possible to select the following for the second angle and torque

channels:

 Angle 2

- Views the recorded angle values for the second angle channel.

 Torque 2

- Views the recorded torque values for the second torque channel.

 Pos. Angle 2

- Views the recorded angle values for the second angle channel filtered so that all

angle movements are positive, i.e. the angle of the cycle is always increasing, even if the bolt was

moving backwards.

 Pos. Torque 2

- Views the absolute values of the recorded torque values for the second torque

channel.

For the horisontal axis, the following quantities can be selected:

 Time - Displays values over sample time.

Atlas Copco PowerMACS 4000 User Manual

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