Bias And Gain Of Torque (Magnetic Flux) Setting Voltage (Current) (Pr. 241, C16(Pr. 919) To C19(Pr. 920), C38 (Pr. 932) To C41 (Pr. 933)) - Mitsubishi Electric FR-A740-00023 Instruction Manual

Frequency/torque setting by analog
input (terminal 1, 2, 4)
4.21.6 Bias and gain of torque (magnetic flux) setting voltage (current)
(Pr. 241, C16(Pr. 919) to C19(Pr. 920), C38 (Pr. 932) to C41 (Pr. 933))
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).
Use Pr. 73 and Pr. 267 to switch from among 0 to 5V, 0 to 10V, 4 to 20mADC. (Refer to page 275)
Parameter
Number
Analog input display unit
241
*2
switchover
Terminal 1 bias command (torque/
C16(919)
*1
magnetic flux)
Terminal 1 bias (torque/magnetic
C17(919)
*1
flux)
Terminal 1 gain command (torque/
C18(920)
*1
magnetic flux)
Terminal 1 gain (torque/magnetic
C19(920)
*1
flux)
Terminal 4 bias command (torque/
C38(932)
*1
magnetic flux)
Terminal 4 bias (torque/magnetic
C39(932)
*1
flux)
Terminal 4 gain command (torque/
C40(933)
*1
magnetic flux)
Terminal 4 gain (torque/magnetic
C41(933)
*1
flux)
*1 The parameter number in parentheses is the one for use with the parameter unit (FR-PU04/FR-PU07).
*2 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 .
(1) Change functions of analog input terminal
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 (speed limit). To use an analog input terminal as torque
command, torque limit input or magnetic flux command input, set Pr. 868 Terminal 1 function assignment and Pr. 858
Terminal 4 function assignment to change functions. (Refer to page 274)
(2) The relationship between analog input terminal and calibration parameter
Terminal 1 functional calibration parameter
Pr. 868 Terminal
Setting Function
0
Frequency (speed)
(initial
setting auxiliary
value)
Magnetic flux
1
command
Regenerative
2
torque limit
3 Torque command
Stall prevention
operation level */
4
torque limit/torque
command
Forward/reverse
5
rotation speed limit
6 Torque bias input
⎯
9999
* Use Pr. 148 Stall prevention level at 0V input and Pr. 149 Stall prevention level at 10V input to adjust bias/gain of stall prevention operation level.
288
Initial
Name
Value
0
0%
0%
150%
100%
0%
20%
150%
100%
Bias setting
C2(Pr. 902) Terminal 2 frequency setting bias frequency
C3(Pr. 902) Terminal 2 frequency setting bias
C5(Pr. 904) Terminal 4 frequency setting bias frequency
C6(Pr. 904) Terminal 4 frequency setting bias
C16(Pr. 919) Terminal 1bias command (torque/magnetic flux)
C17(Pr. 919) Terminal 1bias (torque/magnetic flux)
C16(Pr. 919) Terminal 1 bias command (torque/magnetic flux)
C17(Pr. 919) Terminal 1 bias (torque/magnetic flux)
C12(Pr. 917) Terminal 1 bias frequency (speed)
C13(Pr. 917) Terminal 1 bias (speed)
C16(Pr. 919) Terminal 1 bias command (torque/magnetic flux)
C17(Pr. 919) Terminal 1 bias (torque/magnetic flux)
⎯
Setting
Range
0 Displayed in %
1 Displayed in V/mA
Set the torque (magnetic flux) on the bias side of
0 to 400%
terminal 1 input.
Set the converted % of the bias side voltage
0 to 300%
(current) of terminal1 input.
Set the torque (magnetic flux) of the terminal 1 input
0 to 400%
gain (maximum).
Set the converted % of the gain side voltage of
0 to 300%
terminal1 input.
Set the torque (magnetic flux) on the bias side of
0 to 400%
terminal 4 input.
Set the converted % of the bias side current
0 to 300%
(voltage) of terminal 4 input.
Set the torque (magnetic flux) of the terminal 4 input
0 to 400%
gain (maximum).
Set the converted % of the gain side current
0 to 300%
(voltage) of terminal 4 input.
Calibration Parameters
Pr. 125 Terminal 2 frequency setting gain frequency
C4(Pr. 903) Terminal 2 frequency setting gain
Pr. 126 Terminal 4 frequency setting gain frequency
C7(Pr. 905) Terminal 4 frequency setting gain
C18(Pr. 920) Terminal 1 gain command (torque/magnetic flux)
C19(Pr. 920) Terminal 1 gain (torque/magnetic flux)
C18(Pr. 920) Terminal 1 gain command (torque/magnetic flux)
C19(Pr. 920) Terminal 1 gain (torque/magnetic flux)
C14(Pr. 918) Terminal 1 gain frequency (speed)
C15(Pr. 918) Terminal 1 gain (speed)
C18(Pr. 920) Terminal 1 gain command (torque/magnetic flux)
C19(Pr. 920) Terminal 1 gain (torque/magnetic flux)
Sensorless Sensorless Sensorless Vector Vector Vector
Description
Select the unit of analog input
display.
Gain setting
⎯