Danfoss VLT AutomationDrive FC 301 Programming Manual page 51

Parameter Descriptions
1-00 Configuration Mode
Option: Function:
groups 7-2* Process Ctrl. Feedb. and
7-3* Process PID Ctrl.
[7] Extended PID Specific parameters in parameter
Speed OL groups 7-2* Process Ctrl. Feedb. to
7-5* Ext. Process PID Ctrl.
[8] Extended PID Specific parameters in parameter
Speed CL groups 7-2* Process Ctrl. Feedb. to
7-5* Ext. Process PID Ctrl.
NOTICE
[9] Positioning
This option is available only
with software version 48.XX.
Activates the positioning mode.
NOTICE
[10] Synchroni-
zation
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
parameter 1-55 U/f Characteristic - U
and parameter 1-56 U/f Charac-
teristic - F.
[1] VVC+ Voltage vector control principle is
suitable for most applications. The
main benefit of VVC
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.
M0013101
Programming Guide
1-01 Motor Control Principle
Option:
[3]
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.
1-02 Flux Motor Feedback Source
Option:
[1] 24V
*
encoder
32/33
[2] MCB 102
+
operation is
[3] MCB 103
[4] MCO
Encoder 1
X56
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Function:
Flux w/ motor High accuracy speed and torque
feedb control, suitable for the most
demanding applications.
NOTICE
This is valid for FC 302 only.
Function:
NOTICE
This parameter cannot be adjusted while
the motor is running.
The options 12 and 13 are only available
for software version 48.XX.
Select the source of the feedback for flux
closed loop motor control. Set
parameter 1-01 Motor Control Principle to [3]
Flux with motor feedback option.
The feedback device is typically mounted
directly on the motor shaft. The feedback
device can also be mounted in the application
provided the gear ratio between motor and
encoder is fixed and accurate.
Configure the gear ratio between motor and
encoder in parameter 7-94 Position PI Feedback
Scale Numerator and parameter 7-95 Position PI
Feebback Scale Denominator without any
rounding error.
Single signal generated from 24 V High
Threshold Logic (HTL) encoder connected to
terminals 32 and 33. Configure the 24 V
encoder interface in parameter group 5.7* 24 V
Encoder Input.
Program terminals 32/33 to [0] No operation.
The option is named as 24 V encoder in
software version 8.XX.
This option is only available for VLT
Option MCB 102. Configure the encoder
interface in parameter groups 17-0*, 17-1* and
17-2*.
This option is only available for VLT
Option MCB 103. Configure the resolver
interface in parameter groups 17-5* Resolver
Interface.
The MCO encoder 1 X56 is only available with
motion control options MCO 305, MCO 350,
and MCO 351.
Configure the encoder interface in Parameter
group 32-3* Encoder 1.
3 3
®
Encoder
®
Resolver
49