Parameters: 1-** Load And Motor; Configuration Mode; Motor Control Principle; Flux Motor Feedback Source - Danfoss VLT AutomationDrive Programming Manual

Parameter Descriptions

3.3 Parameters: 1-** Load and Motor

3.3.1 1-0* General Settings
Define whether the Adjustable frequency drive operates in
speed mode or torque mode; and whether the internal PID
control should be active or not.

1-00 Configuration Mode

Option: Function:
Select the application control principle to be
used when a remote reference (i.e., via
analog input or serial communication bus) is
active. A remote reference can only be active
when 3-13 Reference Site is set to [0] or [1].
[0] Speed open Enables speed control (without feedback
*
loop signal from motor) with automatic slip
compensation for almost constant speed at
varying loads.
Compensations are active but can be
disabled in the Load/Motor parameter group
1-0*.
[1] Speed Enables Speed closed-loop control with
closed loop feedback. Obtain full holding torque at 0
RPM.
For increased speed accuracy, provide a
feedback signal and set the speed PID
control.
[2] Torque Enables torque closed-loop control with
feedback. Only possible with "Flux with
motor feedback" option, 1-01 Motor Control
Principle. FC 302 only.
[3] Process Enables the use of process control in the
Adjustable frequency drive. The process
control parameters are set in parameter
groups 7-2* and 7-3*.
[4] Torque open
Enables the use of torque open-loop in VVC
loop
mode (1-01 Motor Control Principle). The
torque PID parameters are set in parameter
group 7-1*.
[5] Wobble Enables the wobble functionality in
30-00 Wobble Mode to 30-19 Wobble Delta
Freq. Scaled.
[6] Surface Enables the surface winder control specific
Winder parameters in parameter group 7-2* and
7-3*.
[7] Extended Specific parameters in parameter group 7-2*
PID Speed to 7-5*.
OL
[8] Extended Specific parameters in parameter group 7-2*
PID Speed to 7-5*.
CL
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FC 300 Programming Guide

1-01 Motor Control Principle

Option:
[0]
[1]
[2]
[3]
The best shaft performance is normally achieved using
either of the two flux vector control modes Flux sensorless
[2] and Flux with encoder feedback [3].
NOTE!
This parameter cannot be adjusted while the motor is
running.
NOTE!
An overview of possible combinations of the settings in
1-00 Configuration Mode and 1-01 Motor Control Principle
can be found in 4.1.1 Conversion.
+

1-02 Flux Motor Feedback Source

Option:
[0]
[1]
[2]
[3]
®
MG33MD22 - VLT is a registered Danfoss trademark
Function:
Select which motor control principle to
employ.
U/f special motor mode, for parallel connected
*
motors in special motor applications. When
U/f is selected the characteristic of the
control principle can be edited in 1-55 U/f
Characteristic - U and 1-56 U/f Characteristic -
F.
VVC+ Voltage vector control principle suitable for
most applications. The main benefit of
plus
VVC operation is that it uses a robust
motor model.
Flux Flux Vector control without encoder
sensorless feedback, for simple installation and
robustness against sudden load changes. FC
302 only.
Flux w/ very high accuracy speed and torque
motor feedb control, suitable for the most demanding
applications. FC 302 only.
Function:
Select the interface at which to receive
feedback from the motor.
Motor feedb. P1-02
24V encoder A and B channel encoder, which can
*
only be connected to the digital input
terminals 32/33. Terminals 32/33 must
be programmed to No operation.
MCB 102 Encoder module option which can be
configured in parameter group 17-1*
FC 302 only.
MCB 103 Optional resolver interface module
which can be configured in parameter
group 17-5*
3 3
3-13