Atlas Copco Power Focus 3000 User Manual

Pset
9836 3123 01 101 (428)
The spindle torque is
proportional to the motor
current. By measuring motor
current, a method of
measurement that is independent
of the torque transducer is
achieved. The torque forming
current is expressed as a
percentage of the nominal
current at T102 Tool max torque.
With P200 Current monitoring
selected it is possible to set an
acceptance window for the
torque as a redundant process
control.
7.8.2 PVT selftap
In the Pset Programming + branch,
select PVT selftap.
When the joint has a torque peak at
the start of the tightening it is
recommended to use the PVT
selftap monitoring option, P210
Selftap, to ensure that the tightening
achieves the right characteristics.
PVT selftap also makes it possible to perform tightenings where the start torque is higher than the P113
Final target or P114 Final tq max.
The selftap interval starts at P110 Cycle start. During the P211 Selftap interval the torque has to reach at
least the P213 Selftap min level but must stay below the P214 Selftap max limit. The P214 Selftap max is
monitored in real time during the selftap interval. The P213 Selftap min value is evaluated against the
selftap interval peak value at the end of the interval.
To reduce the effects of noise, mean values are calculated from P212 Number of selftap windows. A small
number of windows means that more samples are grouped together, hence one odd sample has less
1. P201 CM min
2. P202 CM max
3. Acceptance window
4. Torque (transducer)
5. Torque (current)
2.
3.
1.
4.
5.
Time
Torque

Atlas Copco Power Focus 3000 Specifications

General

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