Parameters
Speed control under Real sensorless vector control, vector control, PM sensorless vector control
FR-A800
5 - 89
NOTES
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 5-78 for the parameters that are initialized.)
To use a motor capacity that is one rank lower than the inverter capacity, set Pr. 80 "Motor capac-
ity" 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 5-227.)
Constant-speed operation cannot be performed in the low-speed range of 200 r/min or less under
current synchronization operation. (Refer to page 5-81.)
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 func-
tion 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.
Summary of Contents for FR-A820-00046 (0.4K)
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Page 144: ...System configuration for Ethernet communication FR A800 E Installation and wiring 2 114 ...
Page 202: ...Basic operation procedure JOG operation Basic operation 4 32 ...
Page 1090: ...Check first when you have a trouble Protective functions 6 50 ...
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