Mitsubishi Electric 800 Series, Инструкция по эксплуатации, Страница: 157 / 727

Speed control under Real sensorless vector control, vector control, PM sensorless vector
control
156
PARAMETERS
 Selecting the torque limit input method (Pr.810)
• Use Pr.810 Torque limit input method selection to select which method to use to limit the output torque during speed
control.

Torque limit level using parameter settings (Pr.810 = "0", Pr.812 to
Pr.814)
• The torque is limited by parameter setting. (Internal torque limit 1)
• In the initial value, a limit is applied to all quadrants with
Pr.22 Stall prevention operation level (Torque limit level) .
• To set individually for each quadrant, use Pr.812 Torque limit level (regeneration) , Pr.813 Torque limit level (3rd
quadrant) , Pr.814 Torque limit level (4th quadrant) . When "9999" is set, Pr.22 setting is regarded as torque limit level in
all the quadrants.
Pr.810 setting
Torque limit input
method
Operation
0 (Initial value) Internal torque limit 1
Perform the torque limit operation using the parameter (Pr.22, Pr.812 to Pr.814) settings.
If changing the torque limit parameters via communication is enabled, the torque limit
input can be performed via communication.
1 External torque limit Torque limit using analog voltage (current) to terminal 1 or terminal 4 is valid.
2 Internal torque limit 2 The torque limit by communication option (FR-A8NC/FR-A8NCE) is enabled.
quad1
(Pr.22)
quad4
(Pr.814)
(Pr.813)
quad2
(Pr.812)
Reverse
rotation
Forward
rotation
Torque limit
Speed
Reverse
driving
Reverse
regeneration
Rated speed
quad3
+
-
Forward
regeneration
Forward
driving