Programming motor data
After performing the initial programming steps, the SynRM
motor-related parameters in
parameter groups 1-2* Motor
Data
,
1-3* Adv. Motor Data
, and
1-4* Adv. Motor Data II
are
active.
Use the motor nameplate data and the motor datasheet to
program the following parameters in the order listed:
1.
Parameter 1-23 Motor Frequency
.
2.
Parameter 1-24 Motor Current
.
3.
Parameter 1-25 Motor Nominal Speed
.
4.
Parameter 1-26 Motor Cont. Rated Torque
.
Run a complete AMA using
parameter 1-29 Automatic
Motor Adaptation (AMA)
[1] Enable Complete AMA
or enter
the following parameters manually:
1.
Parameter 1-30 Stator Resistance (Rs)
.
2.
Parameter 1-37 d-axis Inductance (Ld)
.
3.
Parameter 1-44 d-axis Inductance Sat. (LdSat)
.
4.
Parameter 1-45 q-axis Inductance Sat. (LqSat)
.
5.
Parameter 1-48 Inductance Sat. Point
.
Application-specific adjustments
Start the motor at nominal speed. If the application does
not run well, check the VVC
+
SynRM settings.
provides application-specific recommendations:
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.
This parameter is independent of
parameter 30-20 High Starting Torque
Time [s]
and
parameter 30-21 High
Starting Torque Current [%]
). Working
at a current level higher than 100%
for a prolonged time can cause the
motor to overheat.
Application
Settings
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
frequency at which the frequency
converter should use minimum
magnetization.
Motor sizes less than
18 kW (24 hp)
Avoid short ramp-down times.
Table 3.5 Recommendations for Various Applications
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.
1-10 Motor Construction
Option:
Function:
Select the motor design type.
NOTICE
FC 301 allows only selection of
asynchronous motors.
[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.
NOTICE
This option is valid for FC 302 only.
[2]
PM, salient
IPM
Use for IPM motors, interior mounted
magnet.
PM motors are divided into 2 groups, with
either surface-mounted (SPM)/non-salient
magnets or interior-mounted (IPM)/salient
magnets.
NOTICE
This option is valid for FC 302 only.
[5]
SynRM
Use for SynRM, synchronous reluctance
motors.
Parameter Descriptions
Programming Guide
MG33MP02
Danfoss A/S © 10/2018 All rights reserved.
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Summary of Contents for VLT AutomationDrive FC 302
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