LSIS LSLV-S100 - Page 199

Learning Advanced Features
185
Auto Tuning Parameter Setting Details
Code
Description
bA.20 Auto
Tuning
Select an auto tuning type and run it. Select one of the options and then
press the [ENT] key to run the auto tuning.
Setting
Function
0
None
Auto tuning function is not enabled. Also, if you select
one of the auto tuning options and run it, the
parameter value will revert back to “0” when the auto
tuning is complete.
1
All (rotating
type)
Measures all motor parameters, including stator
resistance (Rs), stator inductance (Lsigma), no-load
current (Noload Curr), rotor time constant (Tr), etc.,
while the motor is rotating. As the motor is rotating
while the parameters are being measured, if the load
is connected to the motor spindle, the parameters
may not be measured accurately. For accurate
measurements, remove the load attached to the
motor spindle.
However, note that the rotor time constant (Tr) must
be measured in a stopped position.
2
All (static
type)
Measures all parameters while the motor is in the
stopped position. Measures stator resistance (Rs),
stator inductance (Lsigma), no-load current (Noload
Curr), rotor time constant (Tr), etc., while the motor is
in the stopped position. As the motor is not rotating
while the parameters are measured, the
measurements are not affected when the load is
connected to the motor spindle. However, when
measuring parameters, do not rotate the motor
spindle on the load side.
3
Rs+Lsigma
(rotating
type)
Measures parameters while the motor is rotating. The
measured motor parameters are used for auto torque
boost or sensorless vector control.
6
Tr (static
type)
Measures the rotor time constant (Tr) with the motor
in the stopped position and Control Mode (dr.09) is set
to IM Sensorless.
7
All (PM)
When dr.09 (Control Mode) is set to 6 (PM
Sensorless), the motor parameters are measured in
the stopped position. Check the motor’s rating plate
for motor specifications, such as the base frequency
(dr.18), rated voltage (bA.15), pole number (bA.11).
Then, perform auto tuning by setting bA.20 to 7 [All
(PM)]. The auto tuning operation will configure the
bA.21 (Rs), bA.28 [Ld (PM)], bA.29 [Lq (PM)], and
bA.30 (PM Flux Ref) parameters.
bA.14 Noload
Displays motor parameters measured by auto tuning. For parameters that