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
+
SynRM settings.
Application
Settings
Low-inertia applications
I
Load
/I
Motor
<5
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%).
Low-inertia applications
50>I
Load
/I
Motor
>5
Keep the default values.
High-inertia applications
I
Load
/I
Motor
>50
Increase
parameter 1-14 Damping Gain
,
parameter 1-15 Low Speed Filter Time Const.
, and
parameter
1-16 High Speed Filter Time Const
.
High-load at low speed
<30% (rated speed)
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.
Dynamic applications
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.
Motor sizes less than 18 kW
(24 hp)
Avoid short ramp-down times.
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
N O T I C E
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
Parameter type: Option
Setup: All setups
Conversion index: –
Data type: Uint8
Change during operation: False
Select the motor design type.
Option Name
Description
[0]*
Asynchron
Use for ASM/IM motors.
[1]
PM, non salient
SPM
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.
AU373327181955en-000101 / 130R1208
64 | Danfoss A/S © 2021.08
Parameter Descriptions
VLT® AutomationDrive EZ FC 321
Programming Guide