Mitsubishi Electric FR-A7AZ Instruction Manual page 32

(4) Calibration of stall prevention operation level (Pr. 406 = "4")
When Pr. 406 = "4" under V/F control and Advanced magnetic flux vector control, terminal 6 acts as stall
prevention operation level and Pr. 148 and Pr. 149 are used for calibration parameter.
(5) Calibration of torque bias input (Pr. 406 = "6")
When Pr. 406 = "6", terminal 6 acts as torque bias input and Pr. 846 to Pr. 848, C34 to C37 are used for
calibration parameter.
Pr. 840 = "1" (at driving when the motor is in forward rotation)
<When the motor runs in forward rotation direction>
Bias amount
150%
C35 (Pr. 928)
Torque bias
Bias
0
C34 (Pr. 928)
Current limit level(%)
200%
Initial value
150%
-10V 0V
Current limit level at 0V input (Pr. 148)
Initial value
Torque bias
Gain
C36 (Pr. 929)
Input voltage
Voltage for max. load
C37 (Pr. 929)
Voltage for balanced load
Pr. 846
HIGH RESOLUTION ANALOG INPUT
Current limit level
at 10V input
(Pr. 149)
Input voltage
10V
<When the motor runs in reverse rotation direction>
Bias amount
150%
Fall-time
torque bias
0
Bias
Pr. 847
Initial value
Fall-time
torque bias
Gain
Pr. 848
Input voltage
Voltage for max. load
Voltage for balanced load
Pr. 846
5
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