Adjustment Of Real Sensorless Vector Control, Vector Control - Mitsubishi Electric FR-A700 Technical Manual

2.12 Adjustment of Real sensorless vector control,
vector control
2.12.1 Bias and gain of torque (magnetic flux) setting voltage (current)
[Pr. 241, C16 to C19 (Pr. 919, 920), C34 to C37 (Pr. 928, 929), C38 to C41 (Pr. 932,
A700
933)]
(A700)
You can set the magnitude (slope) of the torque as desired
in relation to the torque setting signal (0 to 5VDC, 0 to 10V
or 4 to 20mA).
Set [Pr. 73, Pr. 267] to switch between 0 to 5VDC, 0 to
10VDC and 4 to 20mA. (Refer to page 217)
In the initial setting status, terminal 1 and terminal 4 used
for analog input are respectively set to speed setting
auxiliary (speed limit auxiliary) and speed command
[Pr. ]
*1 Analog input display unit switchover
241
Terminal 1 bias command (torque/
C16(919)
magnetic flux)
C17(919) Terminal 1 bias (torque/magnetic flux)
Terminal 1 gain command (torque/
C18(920)
magnetic flux))
C19(920) Terminal 1 gain (torque/magnetic flux)
C34(928) Terminal 6 bias command (torque)
C35(928) Terminal 6 bias (torque)
C36(929) Terminal 6 gain command (torque)
C37(929) Terminal 6 gain (torque)
Terminal 4 bias command (torque/
C38(932)
magnetic flux)
C39(932) Terminal 4 bias (torque/magnetic flux)
Terminal 4 gain command (torque/
C40(933)
magnetic flux)
C41(933) Terminal 4 gain (torque/magnetic flux)
*1 The above parameters allow its setting to be changed during operation in any operation mode even if "0" (initial value) is set in
[Pr. 77 Parameter write selection].
Initial
Name
Value
0
0%
0%
150%
100%
0%
0%
150%
100%
0%
20%
150%
100%
(speed limit). To use an analog input terminal as torque
command, torque limit, and magnetic flux input, set [Pr. 868
Terminal 1 function assignment] and [Pr. 858 Terminal 4
function assignment] to change functions. (Refer to page 46)
Magnetic flux is valid only during vector control.
To use terminal 6 of FR-A7AZ for torque command or
torque limit, set [Pr. 406 High resolution analog input selection]
and change the function. (Refer to page 46)
Setting
Range
0 Displayed in %
1 Displayed in V/mA
Set the torque (magnetic flux) on the bias side of terminal 1
0 to 400%
input.
Set the converted % of the bias side voltage of terminal 1
0 to 300%
input.
Set the torque (magnetic flux) of the terminal 1 input gain
0 to 400%
(maximum).
Set the converted % of the gain side voltage of terminal 1
0 to 300%
input.
0 to 400% Set the torque on the bias side of terminal 6 input.
Set the converted % of the bias side voltage of terminal 6
0 to 300%
input.
0 to 400% Set the torque of the terminal 6 input gain (maximum).
Set the converted % of the gain side voltage of terminal 6
0 to 300%
input.
Set the torque (magnetic flux) on the bias side of terminal 4
0 to 400%
input.
Set the converted % of the bias side current (voltage) of
0 to 300%
terminal 4 input.
Set the torque (magnetic flux) of the terminal 4 input gain
0 to 400%
(maximum).
Set the converted % of the gain side current (voltage) of
0 to 300%
terminal 4 input.
320
PARAMETER
Description
Selects the unit for analog input display.