63
COMMISSIONING MANUAL
POWERDRIVE MD
Variable speed drive
MENUS AND DIAGRAMS IN ADVANCED SET UP MODE
LEROY-SOMER
3871 en - 2011.05 / h
: Low fre
q
uency volta
g
e boost
Adjustment range : 0 to 25.0% of motor Un (
05.09
)
Factory setting
: 1.0% motor Un
For operation in V/F mode (
05.14
at V/F (2)), parameter
05.15
is used to overflux the motor at low speed so that it
delivers more torque on starting. It is a percentage of the
motor rated voltage (
05.09
).
: Not used
: Stator resistance
Adjustment range : 0 to 32.000 x
:
Factory setting
: 0.000 x
:
This parameter stores the motor stator resistance for flux
vector control mode (see parameter
05.14
).
If the stator resistance cannot be measured (motor not
connected, value higher than the max. rating), a "Stator res."
trip occurs.
During autotuning (
05.12
= Stationary (1) or
Rotating (2)), the value of the stator resistance is
automatically stored in
05.17
.
: Maximum switchin
g
fre
q
uency
Adjustment range : 1,5 kHz to 14 kHz (see table below)
Factory setting
: 3 kHz (2)
Sets the PWM switching frequency.
Note :
For frequencies higher than 6 kHz, please contact
LEROY-SOMER.
CAUTION:
A hi
g
h switchin
g
fre
q
uency reduces the ma
g
netic noise,
but it increases the drive temperature rise.
Refer to the installation manual to determine the deratin
g
of the drive accordin
g
to the fre
q
uency.
: Hi
g
h stability modulation
Adjustment range : Disabled (0) or Enabled (1)
Factory setting
: Disabled (0)
Disabled (0): Function disabled.
Enabled (1):
Function enabled.
Instabilities can occur:
- At 50% of the motor rated frequency for an underloaded
motor
- Around and above the motor rated speed, when the motor 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.
: Quasi s
q
uare output
Adjustment range : Disabled (0) or Enabled (1)
Factory setting
: Enabled (1)
Disabled (0):
Function disabled.
Enabled (1): The maximum drive output volta
g
e is hi
g
her,
resultin
g
in an increase in motor tor
q
ue. This is
beneficial for applications where it is desirable to reduce
speed pick-up times in the event of lon
g
cycles.
However, the motor tor
q
ue may have sli
g
ht ripples when
it is li
g
htly loaded.
: H3V removal
Adjustment range : No (0) or Yes (1)
Factory setting
: No (0)
This signal allow to remove rank 3 voltage harmonic (H3V) on
drive sitgnal output. The maximum level reduction will be
15%.
:Not used
:
Volta
g
e offset
Adjustment range : 0 to 25.5 V
Factory setting
: 0.0 V
This voltage offset is measured by the drive (see parameter
05.14
). 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, i.e.
when the drive output voltage is low.
During autotuning (
05.12
= Stationary (1) or Rotating (2)),
the value of the voltage offset is automatically stored in
05.23
.
: Transient inductance
Adjustment range : 0 to 32.000 mH
Factory setting
: 0.000 mH
During autotuning with rotation (
05.12
= Rotating (2)), the
motor leakage inductance is stored in this parameter.
: Stator inductance L
S
Adjustment range : 0 to 320.00 mH
Factory setting
: 0.00 mH
This is the motor stator inductance at rated flux.
During autotuning with rotation (
05.12
: Rotating (2)), the
total motor inductance is stored in this parameter.
: Dynamic control enable
Adjustment range : No (0) or Yes (1)
Factory setting
: No (0)
Reserved.
to
: Not used
Fre
q
uency
05.18
Fre
q
uency
05.18
2 kHz
0
6.5 kHz
9
2.5 kHz
1
7 kHz
10
3 kHz
2
8 kHz
11
3.5 kHz
3
9 kHz
12
4 kHz
4
10 kHz
13
4.5 kHz
5
11 kHz
14
5 kHz
6
12 kHz
15
5.5 kHz
7
13 kHz
16
6 kHz
8
14 kHz
17
1,5 kHz
18
05.15
Output
voltage
05.09
05.06
Boost
Output
frequency
05.09
05.06
2
2
05.15
(
)
05.16
05.17
05.18
05.19
05.20
05.21
05.22
05.23
05.24
05.25
05.26
05.27
05.31