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37
CONFIGURING THE K-DUCER
ADVANCED TORQUE CONTROL STRATEGIES
Certain applications may require the use of tightening strategies more advanced than target
torque or angle control.
For these applications, the K-DUCER offers Running Torque Compensate, Prevailing
Torque, and multi-step program options. These terms are defined in the
section.
These strategies are disabled by default, and if your application does not require them, you
may skip this section.
RUNNING TORQUE
Use running torque to apply the
clamping torque
, letting the
closing torque
vary
according to the
running torque
encountered and measured during the running torque
window.
The goal in this case is to apply a consistent amount of clamping force on the assembly, as
opposed to a consistent amount of
closing torque
.
If the running torque value is expected to be higher than the target clamping torque value,
the application may also require the use of prevailing torque phase, to be used in
conjunction with and during the running torque phase.
Seating point determination
First, it is necessary to understand the morphology and torque rate of the joint. Perform a
series of at least 10 tightening with a target torque near the maximum closing torque
allowed by the application (inclusive of running torque), without using any
running/prevailing/downshift settings. Follow all precautions necessary and note that this
may damage the assembly.
Note down the following information from torque and angle graphs and/or graph data
provided by the K-DUCER. You can also take advantage of the free K-Expand software to
readily analyze the graphs point-by-point.
•
Seating point, in terms of both torque and angle, and of their variability
•
Running torque
Summary of Contents for 033001
Page 1: ...KDU NT and KDS NT Torque range 5 70 cNm 7 100 ozfin OPERATOR MANUAL Patent pending...
Page 13: ...Vers 111422 13 Threaded M3 fixturing holes side holes on CA models only...
Page 44: ...Vers 111422 44 PROGRAMS menu tree...
Page 45: ...Vers 111422 45...
Page 46: ...Vers 111422 46...
Page 47: ...Vers 111422 47...
Page 58: ...Vers 111422 58 SEQUENCE SETTINGS menu tree...
Page 68: ...Vers 111422 68 USB menu tree...
Page 72: ...Vers 111422 72 Pinout CN5...
Page 83: ...Vers 111422 83 EXPLODED VIEW KDS NT70 KDS NT70 HM...
Page 84: ...Vers 111422 84...
Page 85: ...Vers 111422 85...
Page 86: ...Vers 111422 86 SPARE PARTS KDS NT70 KDS NT70 HM Lever Kit HM Half Moon model...
Page 87: ...Vers 111422 87 EXPLODED VIEW KDS NT70CA KDS NT70CA HM...
Page 88: ...Vers 111422 88 SPARE PARTS KDS NT70 KDS NT70 HM...
