LSIS LSLV-S100 - Page 160

146
Learning Advanced Features
Code
Description
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 Curr,
bA.21 Rs–bA.24 Tr
Displays motor parameters measured by auto tuning. For parameters that are not
included in the auto tuning measurement list, the default setting will be
displayed.
• Perform auto tuning ONLY after the motor has completely stopped running.
• Before you run auto tuning, check the motor pole number, rated slip, rated current, rated volage
and efficiency on the motor ’s rating plate and enter the data. The default parameter setting is used
for values that are not entered.
• When measuring all parameters after selecting 2 ( All - static type) at bA20: compared with rotation
type auto tuning where parameters are measured while the motor is rotating, parameter values