Mitsubishi Electric FR-F820-00046 Instruction Manual page 386

• Perform tuning using Pr.574 Second motor online auto tuning .
• Pr.574 is enabled when the Second function selection (RT) signal is turned ON.
Pr.
450
453
454
*1 If a motor with substantially low rated current compared with the inverter rated current is used, speed and torque accuracies may deteriorate due
to torque ripples, etc. Set the rated motor current to about 40% or higher of the inverter rated current.
NOTE
• The RT signal is the Second function selection signal. The RT signal also enables other second functions. (Refer to
The RT signal is assigned to terminal RT in the initial status. Set "3" in one of Pr.178 to Pr.189 (Input terminal function
selection) to assign the RT signal to another terminal.
• Changing the terminal assignment using Pr.178 to Pr.189 (input terminal function selection) may affect the other functions.
Set parameters after confirming the function of each terminal.
Parameters referred to
Pr.9 Electronic thermal O/L relaypage 252
Pr.71 Applied motorpage 362
Pr.80 Motor capacitypage 169,
Pr.81 Number of motor polespage
Pr.96 Auto tuning setting/statuspage
Pr.178 to Pr.189 (Input terminal function
Pr.190 to Pr.196 (Output terminal function
Applied motor
Motor capacity (with the rated motor current equal to or less than the inverter rated current)
Number of motor poles
page 366, page 375
169, page 366, page 375
366, page 375
selection)page 355
selection)page 312
Description
5.10 (C) Motor constant parameters
1
*1
2
3
page 355.)
4
5
6
7
8
9
10
385
5. PARAMETERS