Application-Specific Adjustments; Special Settings - Danfoss VLT AutomationDrive EZ FC 321 Programming Manual

VLT® AutomationDrive EZ FC 321
Programming Guide
Parameter 1-45 q-axis Inductance Sat. (LqSat).
Parameter 1-48 Inductance Sat. Point.

4.2.2.3.3 Application-specific Adjustments

Start the motor at nominal speed. If the application does not run well, check the VVC
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.

4.2.3 1-1* Special Settings

The parameters within this parameter group cannot be adjusted while the motor is running.
Parameter 1-10 Motor Construction
Table 70: Parameter 1-10 Motor Construction
1-10 Motor Construction
Default value: [0] Asynchron
Conversion index: –
Select the motor design type.
Option Name
[0]* Asynchron
[1] PM, non salient
SPM
64 | Danfoss A/S © 2021.08
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
Parameter type: Option
Data type: Uint8
Description
Use for ASM/IM motors.
Use for SPM motors, surface-mounted magnet. PM motors are divided into 2 groups, with either
surface-mounted (SPM)/non-salient magnets or interior-mounted (IPM)/ salient magnets.
Parameter Descriptions
+
SynRM settings.
Setup: All setups
Change during operation: False
AU373327181955en-000101 / 130R1208