Mitsubishi FR-A800

Torque control under Real sensorless vector control and vector control
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PARAMETERS
Speed limit mode 2 (Pr.1113="0", initial value)
• Following the polarity change in the torque command, the polarity of the speed limit value changes. This prevents the
speed from increasing in the torque polarity direction. (When the torque command is 0, the polarity of the speed limit value
is positive.)
• When Pr.807 Speed limit selection="0 or 2", the speed setting value for speed control is applied for the speed limit. When
Pr.807 Speed limit selection="1", the setting of Pr.808 Forward rotation speed limit/speed limit is applied for the speed
limit.
• When the load has reversed the rotation opposite to the torque polarity, the setting of Pr.809 Reverse rotation speed limit/
reverse-side speed limit is applied for the speed limit. (The speed limit value and reverse-side speed limit value are
limited at Pr.1 Maximum frequency (maximum 400 Hz under vector control).)
Pr.7
ONOFF
Start signal
Rotation speed
Time
Torque
command
value
Speed limit value
-Speed limit value
Reverse-side
speed limit value
Reverse-side
speed limit value
Rotation speed
-Pr.809
Pr.809
Range where torque
control is available
Range where torque
control is available
Speed limit value
Pr.8
Pr.809
Reverse-side
speed limit value
Pr.7
ONOFF
Start signal
Rotation speed
Time
Speed limit value
Pr.8
-Pr.809
Reverse-side
speed limit value
Range where torque
control is available
When the torque command value is negativeWhen the torque command value is positive