Mitsubishi Electric 800 Series Instruction Manual page 108

• To avoid overload or overcurrent of the inverter or motor, use Pr.801 Output limit level to limit the torque current.
Pr.801 setting
0% to 400% Set the torque current limit level.
9999 The torque limit setting value (Pr.22, Pr.812 to Pr.817, etc.) is used for limiting the torque current.
Pr.803=0
Torque
Low-speed Constant torque
range range
Torque rise limit
Pr.803=2
Torque
Low-speed Constant torque
range range
Pr.801
Constant torque
limit
Pr.803=10
Torque
Low-speed Constant torque
range range
Constant torque limit
NOTE
• When the Pr.801 setting value is less than the torque limit setting value (Pr.22, Pr.812 to Pr.817, etc.), the Pr.801 setting is
used for limiting the torque current.
 Trip during torque limit operation (Pr.874)
• The inverter can be set to be shut off at activation of torque limit and stalling of the motor.
Constant power range
Constant power limit
Rated speed Speed
Constant power range
Torque reduction when the
output is limited
When the output limit
Constant torque is not exceeded
limit
Rated speed
Speed
Constant power range
Constant power limit
Rated speed Speed
Description
Pr.803=1
Torque
Low-speed Constant torque
range range
Constant torque limit
Constant power range
Constant torque limit
Rated speed Speed
5. Speed Control
5.3 Setting the torque limit level
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10
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