44
MENU 5: MOTOR CONTROL
LEROY-SOMER
5.12
:Autotune
Adjustment range : 0 to 2
Factory setting
: 0
• The measurement taken when 5
5
.
.
1
1
2
2
= 2 should be
taken with the motor uncoupled since the variable
speed drive drives the motor at 2/3 of its rated speed.
Check that this operation does not present any safety
risks, and ensure that the motor is stopped before the
autotune procedure.
• After modifying the motor parameters, repeat
autotuning.
0 (no): No autotune
1 (StoP):
Measurement of motor characteristics when
stopped.
The stator resistance and the voltage offset are stored in
5
5
.
.
1
1
7
7
and
5
5
.
.
2
2
3
3
respectively.
Procedure:
- Ensure that the motor parameters have been set and that
the motor is standstill.
- Enable the drive.
- Give a run command. The display indicates "Auto" and
"tunE" alternately. Wait for the display to stabilise at 0.
- Disable the drive and remove the run command.
The motor is then ready to operate normally.
Parameter
5
5
.
.
1
1
2
2
returns to 0 as soon as autotuning
is complete.
CAUTION:
This autotune is performed automatically even though
5
5
.
.
1
1
2
2
= 0, in the following cases:
- Initial commissioning of the drive
- Return to factory settings, after the drive has been
enabled and a run command given
2 (rot):
Measurement of motor characteristics with rotation.
The stator resistance and the voltage offset are stored in
5
5
.
.
1
1
7
7
and
5
5
.
.
2
2
3
3
respectively, and the reactive current and the
leakage inductance are used to calculate the power factor
5
5
.
.
1
1
0
0
. This mode is used to obtain optimum performance.
Procedure:
- Ensure that the motor parameters have been set and that
the motor is standstill.
- Enable the drive.
- Give a run command. The motor accelerates up to 2/3 of the
rated speed, then performs a freewheel stop. During
autotuning, the display indicates "Auto" and "tunE"
alternately. Wait for the display to stabilise at 0.
Disable the drive and remove the run command.
The motor is then ready to operate normally.
Parameter
5
5
.
.
1
1
2
2
returns to 0 as soon as autotuning is
complete.
5.13
:Dynamic V to F
Adjustment range : 0 or 1
Factory setting
: 0
0 (Lin): The V/F ratio is fixed and set by the base
frequency (5
5
.
.
0
0
6
6
).
1 (dyn):
Dynamic V/F ratio.
Generates a voltage/frequency characteristic which varies
with the load. It is for use in quadratic torque applications
(pumps/fans/compressors). It can be used in constant torque
applications with low dynamics to reduce motor noise.
CAUTION:
5
5
.
.
1
1
3
3
is only active if 5
5
.
.
1
1
4
4
= 2 (UtoF).
5.14
:Voltage mode select
Adjustment range : 0 to 5
Factory setting
: 3
Determines the open loop control mode. Modes 0, 1, 3 or 4
are used in flux vector control mode. The difference between
these modes is the method used to identify the motor
parameters, particularly the stator resistance. As these
parameters vary with the temperature and are essential to
obtain optimum performance, the machine cycle should be
taken into account when selecting the most appropriate
mode. Modes 2 and 5 correspond to a U/F ratio control mode.
This ratio is linear in mode 2 and square in mode 5.
0 (r.run):
The stator resistance and voltage offset are
measured each time the drive receives a run command.
These measurements are only valid if the machine is
stopped, and totally defluxed. The measurement is not taken
when the run command is given less than 2 seconds after the
previous stop. This is the most effective flux vector control
mode. However, the operating cycle should be compatible
with the 2 seconds required between a stop command and a
new run command.
1 (r.no):
The stator resistance
5
5
.
.
1
1
7
7
and voltage offset
5
5
.
.
2
2
3
3
are not measured.
This mode is of course the least effective. It should only be
used when mode 0 (r.run) is incompatible with the operating
cycle. If this were to be the case, during commissioning, an
autotune (
5
5
.
.
1
1
2
2
) should be performed to read the values
measured in
5
5
.
.
1
1
7
7
and
5
5
.
.
2
2
3
3
and use them with mode 1 (r.no)
during normal operation.
2 (UtoF):
Voltage-frequency ratio with fixed boost adjustable
via parameters
5
5
.
.
1
1
5
5
and
5
5
.
.
0
0
9
9
.
CAUTION:
Use this mode to control several motors.
3 (r.FSt): The stator resistance 5
5
.
.
1
1
7
7
and voltage offset
5
5
.
.
2
2
3
3
are measured the first time the drive is enabled.
4 (r.On):
The stator resistance
5
5
.
.
1
1
7
7
and voltage offset
5
5
.
.
2
2
3
3
are measured the first time the drive is enabled following each
power-up.
5 (SqrE):
Square law characteristic.
• In mode 4 (r.On), a voltage is briefly applied to the
motor. For safety, no electrical circuit must be
accessible once the drive has been powered up.
5
5
.
.
1
1
2
2
5
5
.
.
1
1
3
3
5
5
.
.
1
1
4
4
Motor voltage
Boost
Motor frequency
5.09
/2
5.09
5.06
/2
5.06
5.15
Motor voltage
Boost
Motor frequency
5.09
5.06
5.15
Содержание PROXIDRIVE
Страница 8: ...8 ADVANCED USER GUIDE PROXIDRIVE IP66 variable speed drive LEROY SOMER 3756 en 05 2004 b Notes ...
Страница 24: ...24 ADVANCED USER GUIDE PROXIDRIVE IP66 variable speed drive MENU 2 RAMPS LEROY SOMER 3756 en 05 2004 b Notes ...
Страница 104: ...104 ADVANCED USER GUIDE PROXIDRIVE IP66 variable speed drive MENU 15 RESERVED LEROY SOMER 3756 en 05 2004 b Notes ...
Страница 121: ...121 ADVANCED USER GUIDE PROXIDRIVE IP66 variable speed drive OPERATION WITH MODBUS RTU LEROY SOMER 3756 en 05 2004 b ...
Страница 122: ...122 ADVANCED USER GUIDE PROXIDRIVE IP66 variable speed drive OPERATION WITH MODBUS RTU LEROY SOMER 3756 en 05 2004 b ...
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