Delta VFD300C43S-HS User Manual page 483

If the value does not change (inertia
estimation error), decrease the
frequency command, and re-estimate
the inertia
Continue forward/backward running,
so the inertia estimation can
converge to small changing
differences.
 Basic Motor Parameters Adjustment
1. Parameter reset:
Reset Pr.00-02=10 (60Hz) to the default value.
2. Select PM motor type:
Pr.05-33=1 (SPM) or 2 (IPM)
3. Motor nameplate parameter setting:
Parameter
Pr.01-01
Pr.01-02
Pr.05-33
Pr.05-34
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）
Press'RUN'
Rapid forward/reverse run repeatedly
Observe the system inertia per-unit
Pr.11-01
Observe if Pr.11-
01 has changed?
NO
YES
Observe if the inertia
estimation of Pr.11-01
has converged to small
NO
changes?
YES
Press'STOP'
1)
Press 'ENTER'
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
Description
Rated frequency (Hz)
Rated voltage (V )
AC
PM motor type (IPM or SPM)
Rated current (A)
12.2-00-13
Chapter 12 Description of Parameter SettingsC2000-HS
at the display
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.