Mitsubishi Electric FR-A700 Instruction Manual page 263

Frequency inverter
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Parameter
Torque limit level by analog input (terminal 1, 4) (Pr. 810 = 1, Pr. 858, Pr. 868)
● With the upper limit of torque limit as set in Pr. 22, the analog input from terminal 1 input is
used as the torque limit value within the Pr. 22 setting range.
● When torque limit value is input from terminal 1, set "4" in Pr. 868 "Terminal 1 function
assignment". When torque limit value is input from terminal 4, set "4" in Pr. 858 "Terminal 4
function assignment".
● When Pr. 858 = "4" and Pr. 868 = "2", torque is limitted by analog input from terminal 1 for
regeneration and by terminal 4 for driving.
● Torque limit by analog input can be calibrated using calibration parameter C16 (Pr. 919) to
C19 (Pr. 920), C38 (Pr. 932) to C41 (Pr. 933). (Refer to section 6.20.6.)
Reverse
regeneration
Reverse
rotation
Reverse
driving
Analog input (terminal 1, 4) or internal torque control (Pr. 22 etc.)
whichever is smaller
Fig. 6-10: Torque limit level by analog input
FR-A700 EC
Speed control by real sensorless vector control, vector control
Torque limit
quad4
quad1
(Pr. 814)
(Pr. 22)
quad3.
quad2
(Pr. 813)
(Pr. 812)
Rated speed
Pr. 858 = 4, Pr. 868 = 2
Reverse
regeneration
Terminal 1 input or internal torque limit
(Pr. 22 etc.) whichever is smaller
Reverse
rotation
Terminal 4 input or internal torque limit
(Pr. 22 etc.) whichever is smaller
Reverse
driving
Fig. 6-9:
Torque limit level by analog input
Forward
driving
Forward
rotation
Speed
Forward
regeneration
Torque limit
quad4
quad1
quad3
quad2
Rated speed
Forward
driving
Terminal 4 input or internal torque limit
(Pr. 22 etc.) whichever is smaller
Forward
rotation
Speed
Terminal 1 input or internal torque limit
(Pr. 22 etc.) whichever is smaller
Forward
regeneration
I001503E
I001504E
6 - 83

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