Speed control under Real sensorless vector control, vector control, PM sensorless vector
control
184
PARAMETERS
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 will be initialized too. (Refer to page 174 for the
parameters 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 page 277.)
• Constant-speed operation cannot be performed in the low-speed range of 200 r/min or less under current synchronization
operation. (Refer to page 176.)
• 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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