
115
MENU 21: OPERATING PARAMETERS FOR A SECOND MOTOR
LEROY-SOMER
21.09
:Motor 2 rated voltage
Adjustment range : TL = 0 to 240 V
T = 0 to 480V
Factory setting
:
Eur TL = 200V
USA TL = 230V
Eur T = 400V
USA T= 460V
Defines the voltage/frequency ratio as follows:
* If the fixed boost has been selected
5
5
.
.
1
1
4
4
= 2.
This parameter is equivalent to 5
5
.
.
0
0
9
9
in motor 1.
21.10
:Motor 2 power factor (Cos
ϕ
)
Adjustment range : 0 to 1.00
Factory setting
: 0.85
The power factor is measured automatically during an
autotune phase in level 2 (see
5
5
.
.
1
1
2
2
) and set in this
parameter. If it has not been possible to carry out the
autotune procedure, enter the Cos
ϕ
value indicated on the
motor nameplate.
This parameter is equivalent to 5
5
.
.
1
1
0
0
in motor 1.
21.11
:Motor 2 number of poles
Adjustment range : 0 to 4
Factory setting
: 0
When this parameter is at 0 (Auto), the drive automatically
calculates the number of poles according to the rated speed
(
2
2
1
1
.
.
0
0
8
8
) and the rated frequency (
2
2
1
1
.
.
0
0
6
6
). However, the
value can also be entered directly as a number of pairs of
poles.
This parameter is equivalent to 5
5
.
.
1
1
1
1
in motor 1.
21.12
:Motor 2 stator resistance
Adjustment range : 0 to 32.000
Ω
Factory setting
: 0
This parameter stores the motor stator resistance for flux
vector control mode (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 stored automatically.
This parameter is equivalent to 5
5
.
.
1
1
7
7
in motor 1.
21.13
:Motor 2 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 stored automatically.
This parameter is equivalent to 5
5
.
.
2
2
3
3
in motor 1.
21.14
:Motor 2 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.
This parameter is equivalent to 5
5
.
.
2
2
4
4
in motor 1.
21.15
:Motor 2 parameters active
Adjustment range : 0 or 1
2
2
1
1
.
.
1
1
5
5
changes from 0 to 1 when the motor 2 parameters are
active.
They are taken into account when
1
1
1
1
.
.
4
4
5
5
is set to 1 and the
drive is disabled or in the trip state. During drive operation,
1
1
1
1
.
.
4
4
5
5
can be set to 1, but the characteristics of motor 2 are
not taken into account. This parameter can be assigned to a
digital output, in order to control closing of the second motor
contactor when the motor 2 characteristics have been
enabled.
21.16, 21.17, 21.18, 21.19, 21.20, 21.21, 21.22, 21.23
to
: Not used
21.24
:Motor 2 stator inductance L
S
Adjustment range : 0 to 3200.0 mH
Factory setting
: 150.0 mH
This is the motor stator inductance at rated flux.
This parameter is equivalent to 5
5
.
.
2
2
5
5
in motor 1.
21.25, 21.26, 21.27, 21.28, 21.29
to
: Not used
21.30
:Motor volts per 1000 rpm (Ke)
Adjustment range : 0 to 10000 V
Factory setting
: 98V
Used to set the motor voltage per 1000 rpm. Is used to adjust
the current controller integral gain to prevent current peaks
when the drive is enabled with a spinning motor.
This parameter is equivalent to 5
5
.
.
3
3
3
3
in motor 1.
Function not available in version V2.10.
21.31, 21.32, 21.33, 21.34, 21.35, 21.36, 21.37, 21.38, 21.39, 21.40, 21.41, 21.42, 21.43, 21.44, 21.45, 21.46, 21.47, 21.48, 21.49, 21.50
to
: Not used
21.51
:q axis inductance
Adjustment range : 0 to 999.9 mH
Factory setting
: 150.0 mH
This is the motor stator inductance in quadrature with the total
inductance Ls
2
2
1
1
.
.
2
2
4
4
, used to control a synchronous motor
with projecting poles.
This parameter is equivalent to 5
5
.
.
5
5
1
1
in motor 1.
Motor rated speed rpm
Number of poles
2
2
1
1
.
.
1
1
1
1
3000
2
1
1500
4
2
1000
6
3
750
8
4
2
2
1
1
.
.
0
0
9
9
Output voltage
Output voltage
characteristic for
boost of less
than 6.25%
Output
frequency
Boost
*
21.09
21.09
2
21.06
2
21.06
2
2
1
1
.
.
1
1
0
0
2
2
1
1
.
.
1
1
1
1
2
2
1
1
.
.
1
1
2
2
2
2
1
1
.
.
1
1
3
3
2
2
1
1
.
.
1
1
4
4
2
2
1
1
.
.
1
1
5
5
2
2
1
1
.
.
1
1
6
6
2
2
1
1
.
.
2
2
3
3
2
2
1
1
.
.
2
2
4
4
2
2
1
1
.
.
2
2
5
5
2
2
1
1
.
.
2
2
9
9
2
2
1
1
.
.
3
3
0
0
2
2
1
1
.
.
3
3
1
1
2
2
1
1
.
.
5
5
0
0
2
2
1
1
.
.
5
5
1
1