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4.2.5.9 Unfasten Stage
This feature is a specific “backoff” stage used, for example, in a
Rundown-Backoff or Rundown-Backoff-Rundown configuration.
NOTE: In this stage, the tool always runs opposite of the thread
direction.
Angle High:
Maximum allowed angle rotation in degrees.
Angle Target:
Degrees of rotation the tool will backoff in reverse.
Angle Low:
Minimum allowed angle rotation in degrees.
Torque Bailout:
Determines when to stop the tool based on
torque value during any Angle Control strategy; should be
equal or greater than High Torque.
High Torque:
U
pper control limit of the rundown.
Low Torque:
Lower control limit of the rundown.
Max (RPM):
Tool Output speed target (in the unfastening
direction).
Acceleration (kRPM/s):
How quickly tool will change speed. The
lower the value, the slower the accleration (see glossary of
terms for in-depth description).
Audit Enable:
False:
When set to False the stage will not be evaluated for
pass or fail.
True:
When set to True the stage will be evaluated for pass
or fail using high and low limits.
Stage Timeout (sec):
Maximum allowable time in this stage. If
time is exceeded, the tool will stop and the Rundown will be
terminated.
.
Unfasten Stage
Angle (-)
Torque (-)
High Limit
Low Limit
H
ig
h L
im
it
Lo
w
L
im
it
Ta
rg
et
