3. Test Operation and Adjustment
3-8
1) Preparation
Separate the motor and load, machine, etc., and confirm the safety on the load side.
2) Selection of control method
• Set A05-2 to 1. (enables parameter display)
• By parameter (C30-0), select V/f control according the load conditions
V/f control (constant torque) (C30-0 = 1) ( Default value)
V/f control (variable torque) (C30-0 = 2)
3) Initialisation of motor constants
Input the motor rating nameplate value parameters. Automatic tuning will automatically change the
parameters shown in table 3-6-1 or table 3-6-2.
Table 3-6-3
Parameter No. Name
B00-0
B00-1
B00-2
B00-3
B00-4
B00-5
B00-6
B00-7
Rated input voltage setting [V]
Max/base frequency simple setting [Hz]
Motor rated output [kW]
Rated output voltage [V]
Max. frequency [Hz]
Base frequency [Hz]
Motor rated current [A]
Carrier frequency [kHz]
* The max. frequency cannot be set below the base frequency, and the base frequency cannot
be set above the max. frequency.
4) Selection of automatic tuning function
• Set A05-0 to 1. (enables parameter display)
• By parameter (B19-0), select the automatic tuning mode according working conditions. Refer to
section 3-6-1 for details.
• The automatic tuning will star when the
key is pressed.
• During the automatic tuning state, the LCL LED will blink.
• To abort the automatic tuning, press the
key.
5) Starting automatic tuning
Automatic tuning will start when either the
key or key is pressed according to the
required rotation direction. A message indicating starting will appear on the operation panel.
To stop, press the
key or input the emergency stop signal (EMS) from the terminal block.
* Keys other than
and are disabled during automatic tuning.
6) During automatic tuning execution
The progression state can be shown by parameter display D22-0.
Refer to section 3-6-4 for details.
7) Normal completion of automatic tuning
The "LCL" LED will end blinking, lighting stable, and a message indicating the end will be
displayed. Refer to section 3-6-1 for the adjustment details.
8) Abnormal completion of automatic tuning
If the automatic tuning ends abnormally, a error message will appear. Check according to the
error codes. Refer to section 3-6-3 for details.