Mitsubishi Electric FR-A700 EC, Инструкция по эксплуатации

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Speed control by real sensorless vector control, vector control Parameter
6 - 102
6.3.5 Torque biases (Pr. 840 to Pr. 848)
This function accelerates the rise of the torque at a start. Adjust the torque at a motor start using
the contact signals or analog signals.
The above parameters can be set when the FR-A7AP (option) is mounted.
Pr.
No.
Name
Initial
Value
Setting Range Description Parameters referred to
Refer to
Section
840
Torque bias selection 9999
0
Set the torque bias amount with the
contact signal (X42, X43) using
Pr. 841 to Pr. 843.
73
178–189
C16–C19
Analog input selec-
tion
Input terminal
function selection)
Torque setting
voltage (current)
bias and gain 6.20.2
6.14.1
6.20.6
1
Set the terminal 1-based torque bias
amount as desired in C16 to C19.
(in the case a cage goes up when a
motor runs reversely)
2
Set the terminal 1-based torque bias
amount as desired in C16 to C19.
(in the case a cage goes up when a
motor runs forward)
3
The terminal 1-based torque bias
amount can be set automatically in
C16 to C19, Pr. 846 according to the
load.
9999
Without torque bias, rated torque
100%
841
Torque bias 1
9999
600–999%
Negative torque bias amount
(
−
400% to
−
1%)
842
Torque bias 2 1000–1400%
Positive torque bias amount
(0 % to 400 %)
843
Torque bias 3 9999 Without torque bias setting
844
Torque bias filter 9999
0–5s Time until torque rises.
9999 Same operation as when 0s is set.
845
Torque bias operation
time
9999
0–5s
Time for maintaining torque equiva-
lent to the torque bias amount.
9999 Same operation as when 0s is set.
846
Torque bias balance
compensation
9999
0–10V Set the voltage under balanced load.
9999 Same operation as when 0V is set.
847
Fall-time torque bias
terminal 1 bias
9999
0–400%
Set the bias value of the torque
command.
9999
Same as at a rise time (C16, C17
(Pr. 919)).
848
Fall-time torque bias
terminal 1 gain
9999
0–400%
Set the gain value of the torque
command.
9999
Same as at a rise time (C18, C19
(Pr. 920)).
Vector Vector Vector