Set-Up Using The Sensorless Vector Control; The Sequence Of Motor Parameter Autotuning - TECO speecon 7200ma Instruction Manual

G Set-up using the Sensorless Vector Control.
The 7200MA standard with two selectable control modes, V/F control mode
(Sn-67=0) and sensorless vector control mode (Sn-67=1). When the sensorless vector
control mode is selected, be sure to make the inverter capacity and the motor rating
are suitably matched.
The AUTOTUNE feature can be used to identify and store the important motor
parameters for the sensorless control mode.
Refer to p. 60, 61 and 100 to see more details about sensorless vector control.

• The Sequence of Motor Parameter Autotuning:

1. Disconnect the motor load and make sure that the wiring between the inverter
and the motor is suitable. Check the class difference of inverter capacity and
motor rating is less than 2 class or equal.
2. Switch to PRGM operation mode by pressing the LCD Digital Operator
key.
3. Key in motor rated voltage data to Cn-03 (Max. Output Voltage) and the motor
rated frequency to Cn-04 (Max. voltage frequency) according to the motor's
nameplate.
4. Enable the Autotuning function by setting Sn-66=1.
5. Switch to DRIVE operation mode by pressing the
inverter by pressing the
6. The inverter system immediately enters into the autotuning operation, while
complete (normally, about 25 seconds), the inverter return to stopped condition.
Press the
abnormality occurs during autotuning operation.
7. Finally, press the
The value of motor parameter will be automatically stored in these parameters
Cn-57 (motor line-to-line resistance R1), Cn-58 (motor rotor equivalent
resistance R2), Cn-59 (motor leakage inductance Ls) and Cn-60 (mutual
inductance Lm).
RUN
STOP key to stop the parameter autotuning operation while
STOP
key to return the system to normal operation mode.
key.
117
PRGM
key, then run the
DRIVE
PRGM
DRIVE