Ingersoll-Rand INSIGHTqc - Page 49

At Torque (N m), select to view the contents:3.
In the High Limit field, enter a value for the maximum allowable average torque during
the last 360 degrees of the Prevailing Zone.
a.
In the Low Limit field, enter a value for the minimum allowable average torque during the
last 360 degrees of the Prevailing Zone.
b.
Select Slope Method.c.
At Slope, select
to view the contents:d.
In the Slope Chord Length field, enter a value for the number of tool socket degrees of
rotation over which the Torque/Angle gradient is calculated in the Slope method of Seating
Point detection. A larger number results in more Torque noise filtering but a delay in
Seating Point recognition.
x
In the Slope Deviation field, enter a value for the slope that identifies the
beginning of
slope detection for Prevailing Torque.
x
In the Slope Deviation Persistence field, enter a value for the number of consecutive
slope calculations over which the Torque/Angle gradient is greater than the Slope
Deviation, in order to identify the Seating Point and exit the Prevailing Torque zone.
x
At Stick Slip, select
to view the contents:4.
If enabled, do as follows:a.
In the Threshold Torque (%) field, enter a percentage value where if torque decreases
by this amount stick slip has started to occur.
x
In the Occurrence field, enter a value to detect the number of times the measured
torque drops below then rises above the threshold torque.
x
At Miscellaneous, select
to view the contents:5.
If Enable Tare Compensation is enabled, do as follows:
NOTE : When enabled, the Average Prevailing Torque will be added to the Target Torque
and High/Low Torque Limits of the Torque Step.
a.
In the Free Speed field, enter a value for the speed at which the tool will run before
reaching Torque Threshold for Shift down.
x
To save the advance step settings for Prevailing
Torque step - slope method, select Ok.6.
Select Save.7.
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