1. Parameter reset:
2. Select IPM motor type:
3. Motor nameplate parameter setting:
Press’STOP’
1)
Press 'ENTER’ at the display
screen of the last inertia
estimation of Pr.11-01
2) Set Pr.11-00=bit 1 as 0
3) Set the accel./decel time to
default value
9.No-load
Trial Run
7.Re-power after Power Off
8.PM Motor Inertia Estimation
1) Pr.00-11=4 FOCPG control
2) Set the running frequency to 2/3 of the motor rated
frequency.
3) Set the accel./decel. time as 1/10 of the default value.
(Adjust the accel./decel time based on the load inertia.
The smaller the inertia is, the shorter the accel./decel.
time will be)
4) Check connection of the load and the motor
5) Pr.11-00=bit1=1 inertia estimation(for FOCPG mode)
Observe if the inertia
estimation of Pr.11-01
has converged to small
changes?
Continue forward/backward running,
so the inertia estimation can
converge to small changing
differences.
NO
YES
Press’RUN’
Rapid forward/reverse run repeatedly
Observe the system inertia per-unit
Pr.11-01
Observe if Pr.11-
01 has changed?
If the value does not change (inertia
estimation error), decrease the
frequency command, and re-estimate
the inertia
Different load inertia will have
different converging speed. The
larger the intertia is, the slower
it will converge. Which needs to
estimate for several times.
NO
YES