SCOV SV800 Series, User Manual

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SV800/SV800A User Manual 5 Introduction of operation and running
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Table 5-1 Summary Table for Self-Learning
DC mode self-learning Full mode self-learning
Self-learning
implementati
on conditions

Input the induction motor nameplate
parameters correctly (b1-00 to b1-06, or b2-00
to b2-06)

The pulse number of PG must be
correctly input under close-loop vector control
mode (b1-07 or b2-07)

Motor and the transmission machinery
not need to be separated

Input the induction motor nameplate
parameters correctly (b1-00 to b1-06, or b2-00
to b2-06)

The pulse number of PG must be
correctly input under close-loop vector control
mode (b1-07 or b2-07)

As far as possible, separate the motor is
from the transmission machinery in a single
state
Self-learning
detection
parameter

Static time compensation constant
(visible to manufacturers)

Frequency inverter nonlinear
parameters (visible to manufacturers)

Motor primary side resistance and
motor wiring resistance (b1-08 or b2-08)
Note : In vector control mode, if you need to
replace the main control board or the inverter,
please ensure that the electrical parameters
(b1-08 to b1-16, or b2-08 to b2-16) are correct
after performing DC mode. You can choose the
upload and download function of the keyboard.
Use (A0-07) to upload the parameters before
replacing and download the parameters to the
replaced inverter. Thereafter perform DC mode
self-learning. You can also enter electrical
parameters manually after the DC mode
self-learning finished.

Static time compensation constant
(manufacturer's visibility)

Frequency inverter nonlinear
parameters (visible to manufacturers)

Motor primary side resistance and
motor wiring resistance (b1-08 or b2-08)

Motor secondary side resistance (b1-09
or b2-09)

Motor leakage inductance (b1-10 or
b2-10)

Motor mutual inductance (b1-11 or
b2-11)

Motor inductance saturation
compensation coefficient (b1-12, b1-13 or
b2-12, b2-13)

Motor iron loss conductance (b1-14 or
b2-14)

Motor mechanical loss coefficients
(b1-15, b1-16 or b2-15, b2-16)
Self-learning
motor state

Due to the mechanical symmetry
deviation of the three-phase winding, there will
be slight jitters at the beginning of the
self-learning. After rotate forward at low speed
for a half cycle, and then rotate reverse at low
speed for a half cycle, the self-learning finish.
Note: Because DC mode self-learning does not
require motor rotation, self-learning can be
performed when the motor is loaded or has
mechanical brake. At this time, the motor will
neither shake nor reverse speed.

Due to the mechanical symmetry
deviation of the three-phase winding, there will
be slight jitters at the beginning of the
self-learning. Then the motor will become
static. After a period of time, the motor will
accelerate to 80% of the rated rotating speed of
the motor and then decelerate to zero speed.
After rotate forward at low speed for a half
cycle, and then rotate reverse at low speed for a
half cycle, the self-learning finish.
Note: Please remove the load or mechanical
brake from the motor when perform full-mode
self-learning. If the motor can not rotate during
the full-mode self-learning, the detected
electrical parameters would be wrong, which
may cause the motor to fail to run or even cause
inestimable danger.
Note: It is recommended to perform the motor self-learning at ambient temperature (25 °C). Do not perform
self-learning after the motor runs out of heat, otherwise it will result in inaccurate parameters for
constructing the motor mathematical model and lead to motor control accuracy decrease. Temperature