Mitsubishi Electric FR-A800, Instruction Manual

Page: 294 / 1042

Speed control under Real sensorless vector control, vector control, PM sensorless vector control Parameters
5 - 114
Setting the torque bias amount using contact input (Pr. 840 = "0", Pr. 841 to Pr. 843)
●
Select the torque bias amount shown in the table below using the corresponding contact signal
combination.
●
To input the X42 signal, set "42" in any of Pr. 178 to Pr. 189 (input terminal function selection) to
assign the function to a terminal, and to input the X43 signal, set "43".
●
When Pr. 841 = 1025, the torque bias is 25%. When Pr. 842 = 975, the torque bias is –25%.
When Pr. 843 = 925, the torque bias is –75%.
Torque bias selection 1
(X42)
Torque bias selection 2
(X43)
Torque bias amount
OFF OFF 0%
ON OFF Pr. 841 –400% to +400% (Setting value: 600 to 1400%)
OFF ON Pr. 842 –400% to +400% (Setting value: 600 to 1400%)
ON ON Pr. 843 –400% to +400% (Setting value: 600 to 1400%)
Tab. 5-41: Setting torque bias amount with the contact input
NOTE Changing the terminal assignment using Pr. 178 to Pr. 189 (input terminal function selection) may
affect the other functions. Set parameters after confirming the function of each terminal.