Automatic Tuning & Adjustment - Amtech Axpert-Eazy Series Instruction Manual

4-3 Automatic tuning & adjustment
Automatic tuning measures the constants of the connected motor, and automatically adjusts the
parameters so that the system is used to the fullest.
The automatic tuning function performs differ measurements for each of the four control modes. Carry
out automatic tuning each time the motor being used or the applicable control mode is changed.
The automatic tuning mode is set with parameter B201 (automatic tuning selection).
Control mode
V/f control (A401 = 1, 5)
Close loop V/f control (A401 = 2, 6)
Sensor-less vector control (A401 = 3, 7)
4
Close loop vector control (A401 = 4, 8)
Note:
Automatic tuning can be performed with a non-fluctuating load of 10% or less or if a machine is
connected. However, if the applications require an accurate actual output torque in respect to the
torque command, a sufficient performance may not be attained (applicable for B201 = 3, 4).
Autotune selection procedure:
1. Set motor parameter in B102, B103, B104, B105, B106, B107, B109 (if A401 = 2, 4, 6, 8)
2. A201 (Acceleration time) and A202 (deceleration time) should be 10 second or greater than.
3. Set the automatic tuning mode in 'B201: Automatic tuning selection'.
4. Press "RUN" key.
- The auto tuning progress is displayed in M303 and the "RUN" LED will blink on the Digital Operation
Panel.
- After the Successful completion of the process, M303 will display 10 meaning the auto tuning stage
is 100% (complete). If it is 30% complete, it will display 3.
Normal completion of automatic tuning
- When the automatic tuning ends normally, the "RUN" LED will change from a flicker to a stable OFF
state.
- The estimated parameters of the motor will be displayed in Mode B, Group 2. Note down the
parameters for the future use.
The following parameters shown in below table are automatically adjusted by executing autotune
processes.
1) B201 = 2: Stationary mode (Execution time: approx. 40 seconds)
Applicable mode
B201 = 2
Stationary
(Belt ON)
Amtech
4.6
B201 = 2
B201 = 2
B201 = 3, 4
B201 = 3, 4
Parameter No
B202 , B203 R1 : Primary (stator) resistance
B204 , B205 R2' : Secondary (rotor) resistance
B206 , B207 Lσ : Leakage inductance
B208 , B209 M' : Excitation (magnetizing) inductance
A501, D301 Manual torque boost
Automatic tuning mode
Name