Mitsubishi Electric FR-A700 Instruction Manual page 265

Parameter
Second torque limit level (TL signal, Pr. 815)
● 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.
Fig. 6-11: Second torque limit level
NOTE Changing the terminal assignment using Pr. 178 to Pr. 189 "Input terminal function selec-
tion" may affect the other functions. Please make setting after confirming the function of
each terminal.
Set a torque limit value during acceleration and deceleration individually (Pr. 816, Pr. 817 )
You can set torque limit during acceleration and deceleration individually.
The following chart shows torque limit according to the settings of Pr. 816 "Torque limit level dur-
ing acceleration" and Pr. 817 "Torque limit level during deceleration".
frequency [Hz]
frequency
Fig. 6-12: Individual torque limit value during acceleration and deceleration
FR-A700 EC
Reverse
regeneration
Pr. 815
Pr. 815
Reverse
driving
Reverse
rotation
Pr. 816
"Torque limit level during
acceleration"
1s
Output
Set
Acceleration
Speed control by real sensorless vector control, vector control
Torque limit
quad1
quad4
quad3 quad2
Pr. 22
"Torque limit level"
Constant speed
Forward
driving
Pr. 815
Speed
Pr. 815
Forward
regeneration
Forward
rotation
Pr. 817
"Torque limit level during
deceleration"
After the state where dif-
ference between the set
speed and running
speed is within ±2Hz has
persisted for 1s, torque
limit level during acceler-
ation/deceleration (Pr.
816 or Pr. 817) shifts to
torque limit level during
constant speed (Pr. 22).
Deceleration
I001505E
Time
I001506E
6 - 85