3.2 Parameters: 1-** Load and Motor
3.2.1 1-0* General Settings
Define whether the frequency converter 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 (that is via
analog input or fieldbus) is active. A remote
reference can only be active when
is set to
[0]
Linked to Hand/Auto
or
[1] Remote
.
[0]
Speed open
loop
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
.
[1]
Speed
closed loop
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
.
[2]
Torque
Enables torque closed-loop control with
feedback. Only possible with
Flux with motor
feedback
option,
NOTICE
This is valid for FC 302 only.
[3]
Process
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
.
[4]
Torque open
loop
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
.
[5]
Wobble
Enables the wobble functionality in
to
parameter 30-19 Wobble Delta Freq. Scaled
.
[6]
Surface
Winder
Enables the surface winder control specific
parameters in
parameter groups 7-2* Process
Ctrl. Feedb.
and
7-3* Process PID Ctrl
.
1-00 Configuration Mode
Option:
Function:
[7]
Extended
PID Speed
OL
Specific parameters in
parameter groups 7-2*
Process Ctrl. Feedb.
to
7-5* Ext. Process PID Ctrl
.
[8]
Extended
PID Speed
CL
Specific parameters in
parameter groups 7-2*
Process Ctrl. Feedb.
to
7-5* Ext. Process PID Ctrl
.
[9]
Positioning
NOTICE
This option is available only with
software version 48.XX.
Activates the positioning mode.
[10] Synchroni-
zation
NOTICE
This option is available only with
software version 48.XX.
Activates the synchronization mode.
1-01 Motor Control Principle
Option:
Function:
NOTICE
This parameter cannot be adjusted while
the motor is running.
Select which motor control principle to
employ.
[0] 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
and
[1] VVC+
Voltage vector control principle is suitable for
most applications. The main benefit of VVC
+
operation is that it uses a robust motor model.
[2] Flux
sensorless
Flux vector control without encoder feedback,
for simple installation and robustness against
sudden load changes.
NOTICE
This is valid for FC 302 only.
[3] Flux w/
motor feedb
High accuracy speed and torque control,
suitable for the most demanding applications.
NOTICE
This is valid for FC 302 only.
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
.
Parameter Descriptions
VLT
®
AutomationDrive FC 301/302
42
Danfoss A/S © 10/2018 All rights reserved.
MG33MP02
3
3
Summary of Contents for VLT AutomationDrive FC 302
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