Mitsubishi Electric FR-A740-00023 Instruction Manual page 106

Speed control by real sensorless vector
control, vector control
Terminal 1, 4 function according to control (
Pr. 858 Setting Pr. 868 Setting
*1
(initial value)
1
0
(initial value)
6
9999
(initial value)
1
1
*4
6
9999
(initial value)
1
4
*2
6
9999
⎯
9999
*1 When the Pr. 868 setting is other than "0", other functions of terminal 1 (auxiliary input, override function, PID control) do not function.
*2 When the Pr. 858 setting is other than "0", PID control and speed command from terminal 4 do not function even if the AU signal turns on.
*3 When "1" (magnetic flux command) or "4" (torque limit) is set in both Pr. 858 and Pr. 868, function of terminal 1 has higher priority and terminal 4
has no function.
*4 Setting is valid only when exercising vector control with the FR-A7AP.
(5) Second torque limit level (TL signal, Pr. 815)
Torque limit
Reverse
regeneration
Pr.815
quad4
-
Pr.815
quad3
Reverse
driving
Reverse
rotation
Rated speed
CAUTION
⋅ Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may affect the other functions. Please
make setting after confirming the function of each terminal.
96
⎯
: without function)
Real Sensorless Vector Control (Speed Control)
*2
Terminal 4 function
0
*4
2
Speed command
3
(AU signal-ON)
4
5
*4
0
Magnetic flux command
⎯
*4
2
3
4
Magnetic flux command
5
*4
0
Torque limit (Pr. 810 = 1)
*4
2 Driving torque limit (Pr. 810 = 1)
3 Torque limit (Pr. 810 = 1)
⎯
4
5
Torque limit (Pr. 810 = 1)
*4
⎯
Forward
driving
Pr.815
quad1
+
Speed
Pr.815
quad2
Forward
regeneration
Forward
rotation
Terminal 1 function
Speed setting auxiliary
Magnetic flux command
Torque limit (Pr. 810 = 1)
Torque bias (Pr. 840 = 1 to 3)
Speed setting auxiliary
Magnetic flux command
*3
Torque limit (Pr. 810 = 1)
Torque bias (Pr. 840 = 1 to 3)
Speed setting auxiliary
Magnetic flux command
Regenerative torque limit (Pr. 810 = 1)
Torque limit (Pr. 810 = 1)
*3
Torque bias (Pr. 840 = 1 to 3)
⋅ For Pr. 815 Torque limit level 2 , the Pr. 815 value is a torque
limit value regardless of Pr. 810 Torque limit input method
selection when the torque limit selection signal (TL) is on.
⋅ Set "27" in Pr. 178 to Pr. 189 (input terminal function selection)
to assign a function to the TL signal.
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