Parameters: 1-** Load And Motor; Configuration Mode; Motor Control Principle - Danfoss VLT AutomationDrive FC 302 Programming Manual

Parameter Descriptions

3.2 Parameters: 1-** Load and Motor

3.2.1 1-0* General Settings
Define whether the frequency converter operates in speed
3 3 mode or torque mode, and whether the internal PID
control should be active or not.

1-00 Configuration Mode

Option:
[0] Speed open
loop
[1] Speed
closed loop
[2] Torque
[3] Process
[4] Torque open
loop
[5] Wobble
[6] Surface
Winder
42
®
VLT
Function:
Select the application control principle to be
used when a remote reference (that is via
analog input or fieldbus) is active. A remote
reference can only be active when
parameter 3-13 Reference Site is set to [0]
Linked to Hand/Auto or [1] Remote.
Enables speed control (without feedback
signal from motor) with automatic slip
compensation for almost constant speed at
varying loads.
Compensations are active, but can be
disabled in parameter group 1-0* Load/Motor.
Set the speed control parameters in
parameter group 7-0* Speed PID Ctrl.
Enables speed closed-loop control with
feedback. Obtain full holding torque at 0
RPM.
For increased speed accuracy, provide a
feedback signal and set the speed PID
control. Set the speed control parameters in
parameter group 7-0* Speed PID Ctrl.
Enables torque closed-loop control with
feedback. Only possible with Flux with motor
feedback option, parameter 1-01 Motor Control
Principle.
NOTICE
This is valid for FC 302 only.
Enables the use of process control in the
frequency converter. Set the process control
parameters in parameter groups 7-2* Process
Ctrl. Feedb. and 7-3* Process PID Ctrl.
Enables the use of torque open loop in VVC
mode (parameter 1-01 Motor Control Principle).
Set the torque PID parameters in parameter
group 7-1* Torque PI Control.
Enables the wobble functionality in
parameter 30-00 Wobble Mode to
parameter 30-19 Wobble Delta Freq. Scaled.
Enables the surface winder control specific
parameters in parameter groups 7-2* Process
Ctrl. Feedb. and 7-3* Process PID Ctrl.
Danfoss A/S © 10/2018 All rights reserved.
AutomationDrive FC 301/302
1-00 Configuration Mode
Option:
[7] Extended
PID Speed
OL
[8] Extended
PID Speed
CL
[9] Positioning
[10] Synchroni-
zation

1-01 Motor Control Principle

Option:
[0] U/f
[1] VVC+
[2] Flux
sensorless
+
[3] Flux w/
motor feedb
The best shaft performance is normally achieved using
either of the 2 flux vector control modes [2] Flux sensorless
and [3] Flux with encoder feedback.
Function:
Specific parameters in parameter groups 7-2*
Process Ctrl. Feedb. to 7-5* Ext. Process PID Ctrl.
Specific parameters in parameter groups 7-2*
Process Ctrl. Feedb. to 7-5* Ext. Process PID Ctrl.
NOTICE
This option is available only with
software version 48.XX.
Activates the positioning mode.
NOTICE
This option is available only with
software version 48.XX.
Activates the synchronization mode.
Function:
NOTICE
This parameter cannot be adjusted while
the motor is running.
Select which motor control principle to
employ.
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 parameter 1-55 U/f
Characteristic - U and parameter 1-56 U/f
Characteristic - F.
Voltage vector control principle is suitable for
most applications. The main benefit of VVC
operation is that it uses a robust motor model.
Flux vector control without encoder feedback,
for simple installation and robustness against
sudden load changes.
NOTICE
This is valid for FC 302 only.
High accuracy speed and torque control,
suitable for the most demanding applications.
NOTICE
This is valid for FC 302 only.
+
MG33MP02