Chapter 3. Machine Adjustment Procedure | VFD-VJ
3-14
NOTE:
When using SPM motor, set Pr01-07=5 to do rolling test for SPM motor.
When using IPM motor, set Pro1-07=13 to do dynamic rolling test for IPM motor.
Step 2. Estimation of Inertia
Set the speed command as 1000 rpm
Set Pr.01-05 & Pr.01-06 = 0.3~0.5 seconds
Acceleration time setting
Setting value
of Pr.01-05
0.00 – 600.00 seconds
Deceleration time setting
Setting value
of Pr. 01-06
0.00 – 600.00 seconds
Set Pr.01-31 = 2 and then press [Run]
System control
Setting value
of Pr.01-31
0: No function
1: ASR automatic tuning
2: Estimation of inertia
Check if the value of Pr.01-32 is converged. If it is converged, stop the operation. If not, switch
the rotation direction after the speed is stable.
The unity value of the system inertia
Setting value
of Pr. 01-32
1~65535 (256 = 1 per unit)
After the operation stops, select Pr.01-32 and press the [ENTER] button to complete the
“write” operation.
Set Pr.01-31=1 and the estimation of the motor’s inertia is complete.
Step 3. Connect the motor and the pump and then confirm the pressure feedback
signal
Set Parameter 00-04 = 11 and then supply voltage to PS
Selection of multi-function display
Setting value
of Pr.00-04
11: display the signal value of the analog input terminal PS with 0~10V
mapped to 0~100%
Pr.00-08 = related pressure setting value of the pressure sensor at 10V
Maximum pressure feedback value
Setting value
of Pr.00-08
0~250 bar
Set the speed command as 10rpm and press [RUN] to confirm if the pressure value through
the pressure gauge > 0.
If the pressure value 0≦
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