Delta C2000 Series User Manual page 609

Chapter 12 Description of Parameter SettingsC2000
7. Cycle the power.
8. Execute inertia estimation for PM
(1) Set Pr. 00-11 = 4 FOCPG control.
(2) Set the operation frequency command to 2/3 of the motor's rated frequency.
(3) Set the acceleration / deceleration time (Pr. 01-12, Pr. 01-13) to 1/10 of the default time.
(Adjust the acceleration / deceleration time according to the load inertia. The smaller the
load inertia, the shorter the acceleration / deceleration time is set).
(4) Check if the load and the motor is connected.
(5) Set Pr. 11-00 bit1 = 1 inertia estimate (only in FOCPG mode).
(6) Press "RUN" key to proceed the inertia
Quickly run the motor in forward and reverse direction repeatedly, and observe the
inertia estimated value of Pr. 11-01 for the keypad.
a. If the system inertial estimated value of Pr. 11-01 does not change ( = default 256), it
means the inertia estimation is wrong. Reduce the frequency command and estimate
the inertia again.
b. If the system inertia estimated value of Pr. 11-01 is still a lot different from the
estimated value of FWD/REV operation, continue the estimation in forward / reverse
operating direction to restraint the estimated inertia to small difference.
(7) Press "STOP" key to obtain the estimated inertia value:
a. Press "ENTER" to confirm the input value at the displayed page of the last estimated
inertia value of Pr. 11-01.
b. Set Pr.11-01 bit1 = 0, return the control mode to speed mode.
c. Set the acceleration / deceleration time (Pr. 01-12, Pr. 01-13) back to the default value.
12.2-00-14