Torque (Magnetic Flux) Setting Voltage (Current) Bias And Gain - Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual

CAUTION
• Be cautious when setting any value other than "0" as the bias frequency at 0 V (0 mA). Even if a speed command is not
given, simply turning ON the start signal will start the motor at the preset frequency.
Parameters referred to
Pr.1 Maximum frequency, Pr.18 High speed maximum
Pr.20 Acceleration/deceleration reference
Pr.73 Analog input selection, Pr.267 Terminal 4 input
Pr.79 Operation mode selectionpage 370
Pr.858 Terminal 4 function assignment, Pr.868 Terminal 1 function
5.12.6 Torque (magnetic flux) setting voltage (current)
bias and gain
Sensorless Sensorless Sensorless Vector Vector Vector PM PM PM
The magnitude (slope) of the torque can be set as desired in relation to the torque setting signal (0 to 5 VDC, 0 to 10 VDC, or
4 to 20 mA).
Use Pr.73 Analog input selection or Pr.267 Terminal 4 input selection to switch among input 0 to 5 VDC, 0 to 10 V, and 4
to 20 mA. (Refer to page 473.)
Pr. Name
C16 (919)
Terminal 1 bias command (torque) 0%
*1
T110
C17 (919)
Terminal 1 bias (torque)
*1
T111
C18 (920)
Terminal 1 gain command (torque) 150%
*1
T112
C19 (920)
Terminal 1 gain (torque)
*1
T113
C38 (932)
Terminal 4 bias command (torque) 0%
*1
T410
C39 (932)
Terminal 4 bias (torque)
*1
T411
C40 (933)
Terminal 4 gain command (torque) 150%
*1
T412
C41 (933)
Terminal 4 gain (torque)
*1
T413
241 Analog input display unit
M043 switchover
*1 The parameter number in parentheses is the one for use with the LCD operation panel and the parameter unit.
 To change the function of analog input terminal
• In the initial setting, terminal 1 is used for analog input of the auxiliary speed setting (auxiliary speed limit), and terminal 4
is used for the speed command (speed limit). To use the analog input terminal to input the torque command, torque limit,
or magnetic flux command, set Pr.868 Terminal 1 function assignment or Pr.858 Terminal 4 function assignment to
change the function. (Refer to
frequencypage 407
frequencypage 349
selectionpage 473
assignmentpage 477
Initial
Setting range
value
0 to 400%
0% 0 to 300%
0 to 400%
100% 0 to 300%
0 to 400%
20% 0 to 300%
0 to 400%
100% 0 to 300%
0
0
1
page 477.) The magnetic flux command is valid under Vector control only.
Description
Set the bias torque (magnetic flux) for the terminal 1
input.
Set the converted % of the bias voltage for the terminal
1 input.
Set the gain (maximum) torque (magnetic flux) for the
terminal 1 input.
Set the converted % of the gain voltage for the terminal
1 input.
Set the bias torque (magnetic flux) for the terminal 4
input.
Set the converted % of the bias current (voltage) for the
terminal 4 input.
Set the gain (maximum) torque (magnetic flux) for the
terminal 4 input.
Set the converted % of the gain current (voltage) for the
terminal 4 input.
% display
Select the unit for analog input
display.
V/mA display
5.12 (T) Multi-function input terminal parameters
1
2
3
4
5
6
7
8
9
10
487
5. PARAMETERS