Danfoss VLT AutomationDrive EZ FC 321, Руководство по программированию

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Option Name Description
[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 pa-
rameter 1-56 U/f Characteristic - F .
[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 sensor-
less Flux vector control without encoder feedback, for simple installation and robustness against sudden
load changes.
[3] Flux w/
motor High accuracy speed and torque control, suitable for the most demanding applications.
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 1-02 Flux Motor Feedback Source
Table 62: Parameter 1-02 Flux Motor Feedback Source
1-02 Flux Motor Feedback Source
Default value: 24V encoder Parameter type: Option Setup: All setups
Conversion index: – Data type: Uint8 Change during operation: False
N O T I C E
This parameter cannot be adjusted while the motor is running.
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 that the gear ratio between motor and encoder is fixed and accurate. Configure the rear ratio between
motor and encoder in
parameter 7-94 Position PI Feedback Scale Numerator and parameter 7-95 Position PI Feedback Scale Denomina-
tor without any rounding error.
Option Name Description
[1] 24V encoder
32/33 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 termi-
nals 32/33 to [0] No operation .
[13] 24V encoder
27/29 Single-signal HTL encoder connected to digital inputs 27 and 29. 24 V encoder is configured in param-
eter group 5.7* 24V Encoder Input . Program terminals 27/29 to [0] No operation .
Parameter 1-03 Torque Characteristics
Table 63: Parameter 1-03 Torque Characteristics
1-03 Torque Characteristics
Default value: [0] Constant torque Parameter type: Option Setup: All setups
Conversion index: – Data type: Uint8 Change during operation: True
N O T I C E
This parameter cannot be adjusted while the motor is running.
Select the torque characteristic required. VT and AEO are both energy-saving operations.
AU373327181955en-000101 / 130R1208 58 | Danfoss A/S © 2021.08
Parameter Descriptions
VLT® AutomationDrive EZ FC 321
Programming Guide