Setting Procedure Of Pm Sensorless Vector Control (Speed Control) - Mitsubishi Electric FR-A800 Series Instruction Manual

5.3.3 Setting procedure of PM sensorless vector control
(speed control)
PM PM PM
This inverter is set for a general-purpose motor in the initial setting. Follow the following procedure to change the setting for the
PM sensorless vector control.
 Driving an MM-CF IPM motor
Operating procedure
1.
Perform IPM parameter initialization. (Refer to
Set "3003 or 3103" in Pr.998 PM parameter initialization, or select "3003" in "
setting
3003
3103
2.
Set parameters such as the acceleration/deceleration time and multi-speed setting.
Set parameters such as the acceleration/deceleration time and multi-speed setting as required.
3.
Set the operation command. (Refer to
Select the start command and speed command.
4.
Perform the test operation.
As required
• Perform offline auto tuning for a PM motor. (Refer to
NOTE
• To change to the PM sensorless vector control, perform PM parameter initialization at first. If parameter initialization is
performed after setting other parameters, some of those parameters are initialized too. (Refer to
that are initialized.)
• To use a motor capacity that is one rank lower than the inverter capacity, set Pr.80 Motor capacity before performing PM
parameter initialization.
• The speed setting range for an MM-CF IPM motor is between 0 and 200 Hz.
• The carrier frequency is limited during PM sensorless vector control. (Refer to
• Constant-speed operation cannot be performed in the low-speed range of 200r/min or less under current synchronization
operation. (Refer to
• During PM sensorless vector control, the RUN signal is output about 100 ms after turning ON the start command (STF, STR).
The delay is due to the magnetic pole detection.
• During PM sensorless vector control, the automatic restart after instantaneous power failure function operates only when an
MM-CF IPM motor is connected
When a built-in brake or a regeneration unit is used, the frequency search may not be available at 2200 r/min or higher.
The restart operation cannot be performed until the motor speed drops to a frequency where the frequency search is available.
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5. PARAMETERS
5.3 Speed control under Real sensorless vector control, vector control, PM sensorless vector control
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Description
Parameter settings for MM-CF IPM motor (rotations
per minute)
Parameter settings for MM-CF IPM motor
(frequencies)
page
page 233.)
search engine
page 230.)
389.)
page 551.)
" (IPM initialization).
page 231 for the parameters
page 356.)