Lust CDA34.006 - Choice of Terminal Assignment

CDA3000 Operation Manual
3-11
3 Installation
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3.7.1 Choice of
terminal
assignment
Attention: With the SFC motor control mode (Sensorless Flux Control)
no lifting drives and no applications with regenerative load
torque
1)
can be operated at present.
1)
All machinery counteracts the drive with a static torque. The static
torque is generally termed load torque. If this load torque acts in the
direction of movement, such as in lifting mechanisms, during lowering,
then the term “regenerative load torque” is used.
Note: During operation intensive load peaks or unintentional
cancelling of the start effects in a loss of stator flow control of
the SFC-control. So that a current overload shut-off or
uncontrolled movements can occur.
Typical applications Control method Terminal assignment
Continued
on
• Project planning and commissioning are
already complete.
• Loading of an existing data set.
Serial commissioning
Obtain the terminal
assignment from your
project engineer.
Page 4-12
Commis-
sioning
• Pump, fan and extruder drivers and traction
and lifting drives with low dynamics
• Multi-motor operation
Voltage Frequency Control (VFC)
Assignment 1 Page 3-13
Assignment 2 Page 3-14
• Dynamic traction and rotational drives
• Applications with dynamic load
surges
Sensorless Flux Control (SFC)
- Only for asynchronous motor
Assignment 1 Page 3-13
Assignment 2 Page 3-14
• Dynamic traction, lifting and rotational
drives with speed control
• With encoder feedback
Field-Oriented Regulation (FOR)
- Only for asynchronous motor
Assignment 3 Page 3-15
Selection