Atlas Copco Power Focus 3000 User Manual

Pset
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7.6.13 Snug gradient
The Snug gradient strategy runs
the specified P123 Target angle
from the observed Snug point.
Snug gradient controls the angle
and monitors the torque. This
strategy is selectable for both one
and two stage tightening.
The Snug gradient is the slope
calculated by P180 Delta angle and
P181 Delta torque. The Snug point
is defined as the position followed
by two subsequent slopes larger
than the specified Snug gradient.
As soon as two subsequent slopes
are larger than the Snug gradient
the Snug-point is found.
From this point, the spindle runs
the specified P123 Target angle.
If the tool should exceed P182
Torque limit without finding the
Snug point, the tool shuts off and
the (NOK) tightening results are
shown.
2
2
Snug point
3
2
1
1. P110 Cycle start
2. P180 Delta angle
3
Torque
Angle
3. P181 Delta torque
Snug gradient
u
Angle
1
3
2
Snug point
4
2
2
3. P182 Torque limit
4. P123 Target angle
1. P110 Cycle start
2. P180 Delta angle

Atlas Copco Power Focus 3000 Specifications

General

Brand	Atlas Copco
Model	Power Focus 3000
Category	Control Systems
Language	English