Leroy-Somer PROXIDRIVE, Руководство для продвинутых пользователей

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45
ADVANCED USER GUIDE
PROXIDRIVE
IP66 variable speed drive
MENU 5: MOTOR CONTROL
LEROY-SOMER
3756 en - 05.2004 / b
5.15
:Low frequency voltage boost
Adjustment range : 0 to 25.0% of motor Un ( 5
5
.
.
0
0
9
9
)
Factory setting : 5.0% motor Un
For operation in U/F mode ( 5 5 . . 1 1 4 4 at 2), parameter 5 5 . . 1 1 5 5 is
used to overflux the motor at low speed so that it delivers
more torque on starting. It is a percentage of the rated motor
voltage (
5 5 . . 0 0 9 9 ).
5.16
:Not used
5.17
:Stator resistance
Adjustment range : 0 to 32.000
Ω
Factory setting : 0
This parameter stores the motor stator resistance for flux
vector control (see parameter
5
5
.
.
1
1
4
4
).
The stator resistance value is only read if 5
5
.
.
1
1
4
4
= 0.
If the stator resistance cannot be measured (motor not
connected, value higher than the max. rating) an "rS" fault
appears.
During autotuning (
5
5
.
.
1
1
2
2
= 1 or 2), the value of the stator
resistance is automatically stored in 5
5
.
.
1
1
7
7
.
5.18
:Maximum switching frequency
Adjustment range : 0 to 5
Factory setting
: 1
Sets the PWM switching frequency.
CAUTION:
A high switching frequency reduces the magnetic noise,
however it increases the motor temperature rise and the
level of radio-frequency interference emission, and
reduces the starting torque.
If the temperature of the IGBTs becomes too high, the
drive can reduce the switching frequency selected by the
user (see 5
5 . . 3 3 5 5 and 1 1 0 0 . . 1 1 8 8 ).
5.19
:High stability space vector modulation
Adjustment range : 0 or 1
Factory setting
: 0
0 (OFF): Function disabled.
1 (On):
Function enabled. Instabilities can occur:
- at 50% of the rated motor frequency for an underloaded
motor
- around and above the motor rated speed, when this is
underloaded or very heavily loaded.
This function is used to eliminate these instabilities.
It also enables a slight reduction in the drive temperature rise.
However, using this mode may result in a slight increase in
motor noise.
5.20
:Quasi-square enable
Adjustment range : 0 or 1
Factory setting
: 0
0 (OFF): Function disabled.
1 (On):
The maximum drive output voltage is higher, resulting
in an increase in motor torque. This is beneficial for
applications where it is desirable to reduce speed pick-up
times in the event of long cycles.
However, the motor torque may show some slight ripples
when it is only lightly loaded.
Function not available in version V2.10.
5.21, 5.22
and :Not used
5.23
: Voltage offset
Adjustment range : 0 to 25.5 volts
This voltage offset is measured by the drive (see parameter
5 5 . . 1 1 4 4 ). It is used to correct imperfections in the drive,
especially voltage drops in the IGBTs and idle times. This
parameter plays an important role in low-speed operation, ie.
when the drive output voltage is low.
During autotuning (
5 5 . . 1 1 2 2 = 1 or 2), the value of the voltage
offset is automatically stored in 5
5
.
.
2
2
3
3
.
5.24
:Transient inductance
Adjustment range : 0 to 3200.0 mH
Factory setting
: 0
During autotuning with rotation ( 5
5
.
.
1
1
2
2
= 2), the total motor
leakage inductance is stored in this parameter.
5.25
:Stator inductance (Ls)
Adjustment range : 0 to 3200.0 mH
Factory setting
: 150.0 mH
This is the motor stator inductance at rated flux.
5.26, 5.27, 5.28, 5.29, 5.30, 5.31
to : Not used
5.32
:Motor torque per amp (Kt)
Adjustment range : 0.01 to 320.00 NmA
-1
Factory setting : 1.00 NmA
-1
Indicates the motor torque per Amp of active current used to
calculate the drive speed controller gains (
3
3
.
.
1
1
7
7
= 1).
Function not available in version V2.10.
Frequency 5
5
.
.
1
1
8
8
3 kHz 0
4.5 kHz 1
5.5 kHz 2
6 kHz 3
9 kHz 4
11 kHz 5
5
5
.
.
1
1
5
5
Motor
voltage
5.09
5.06
Boost
Motor
frequency
5.09
5.06
2
2
5.15
( )
5 5 . . 1 1 6 6
5
5
.
.
1
1
7
7
5 5 . . 1 1 8 8
5
5
.
.
1
1
9
9
5
5
.
.
2
2
0
0
5
5
.
.
2
2
1
1
5
5
.
.
2
2
2
2
5
5
.
.
2
2
3
3
5 5 . . 2 2 4 4
5
5
.
.
2
2
5
5
5
5
.
.
2
2
6
6
5
5
.
.
3
3
1
1
5
5
.
.
3
3
2
2