Application-Specific Adjustment When Running Vvc+ With Synrm Motors; Special Settings - Danfoss VLT AutomationDrive FC 301 Programming Manual

VLT AutomationDrive FC 301/302
Programming Guide
a.
Parameter 1-23 Motor Frequency.
- b.
Parameter 1-24 Motor Current.
- c.
Parameter 1-25 Motor Nominal Speed.
- d.
Parameter 1-26 Motor Cont. Rated Torque.
2. Run a complete AMA.
- Select [1] Enable Complete AMA in parameter 1-29 Automatic Motor Adaptation (AMA), or
- Enter the following manually:
Parameter 1-30 Stator Resistance (Rs).
Parameter 1-37 d-axis Inductance (Ld).
Parameter 1-44 d-axis Inductance Sat. (LdSat).
Parameter 1-45 q-axis Inductance Sat. (LqSat).
Parameter 1-48 Inductance Sat. Point.

5.2.2.3.3 Application-specific Adjustment when Running VVC+ with SynRM Motors

Start the motor at nominal speed. If the application does not run well, check the VVC+ SynRM settings.
Application
Low-inertia applications
I /I <5
Load Motor
Low-inertia applications
50>I /I >5
Load Motor
High-inertia applications
I /I >50
Load Motor
High-load at low speed
<30% (rated speed)
Dynamic applications
Motor sizes less than 18 kW
(24 hp)
If the motor starts oscillating at a certain speed, increase parameter 1-14 Damping Gain. Increase the damping gain value in small
steps. Depending on the motor, this parameter can be set to 10–100% higher than the default value.

5.2.3 1-1* Special Settings

The following parameter is only available in FC 302:
-
Parameter 1-11 Motor Model
The parameters within this parameter group cannot be adjusted while the motor is running.
72 | Danfoss A/S © 2022.12
Settings
Increase parameter 1-17 Voltage filter time const. by factor 5–10.
Reduce parameter 1-14 Damping Gain.
Reduce parameter 1-66 Min. Current at Low Speed (<100%).
Keep the default values.
Increase parameter 1-14 Damping Gain, parameter 1-15 Low Speed Filter Time Const., and parameter
1-16 High Speed Filter Time Const.
Increase parameter 1-17 Voltage filter time const. Increase parameter 1-66 Min. Current at Low Speed
to adjust the starting torque. 100% current provides nominal torque as starting torque. Working
at a current level higher than 100% for a prolonged time can cause the motor to overheat.
Increase parameter 14-41 AEO Minimum Magnetisation for highly dynamic applications. Adjusting
parameter 14-41 AEO Minimum Magnetisation ensures a good balance between energy efficiency
and dynamics. Adjust parameter 14-42 Minimum AEO Frequency to specify the minimum frequen-
cy at which the drive should use minimum magnetization.
Avoid short ramp-down times.
N O T I C E
N O T I C E
Parameter Descriptions
AU275636650261en-000101 / 130R0334