Torque (Magnetic Flux) Setting Current (Voltage) Bias And Gain - Mitsubishi Electric 800 Series Instruction Manual

12.5
Torque (magnetic flux) setting current (voltage)
bias and gain
PM PM PM
Sensorless Sensorless Sensorless
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.267 Terminal 4 input selection to switch among input 0 to 5 VDC, 0 to 10 V, and 4 to 20 mA. (Refer to
Pr.
C38 Terminal 4 bias command (torque/
T410 magnetic flux)
C39 Terminal 4 bias (torque/magnetic
T411 flux)
C40 Terminal 4 gain command (torque/
T412 magnetic flux)
C41 Terminal 4 gain (torque/magnetic
T413 flux)
241 Analog input display unit
M043 switchover
 Changing the function of analog input terminal
• In the initial setting, terminal 4 is used for analog input of the speed command (speed limit). To use the analog input
terminal to input the torque command, torque limit, or magnetic flux command, set Pr.858 Terminal 4 function
assignment to change the function. (Refer to
 Relationship between the analog input terminal function and the
calibration parameter
• Calibration parameter according to the terminal 4 function
Pr.858
Terminal function
setting
0 (initial Frequency (speed) command /
value) speed limit
4 Torque limit
9999 No function
 Changing the torque for the maximum analog input (C40)
• Use C40 to change the torque setting (gain) for the maximum analog input current (voltage).
 Analog input bias/gain calibration (C38 to C41)
• The "bias" and "gain" functions serve to adjust the relationship between a setting input signal and the torque. A setting
input signal is such as a 0 to 5 VDC, 0 to 10 VDC, or 4 to 20 mADC signal externally input to set the torque command or
the torque limit.
• Set the bias torque of the terminal 4 input using C38. (The initial value is the torque for 4 mA.)
278
12. (T) Multi-Function Input Terminal Parameters

12.5 Torque (magnetic flux) setting current (voltage) bias and gain

Initial
Name
value
0%
20%
150%
100%
0
page
C5 Terminal 4 frequency setting bias
frequency
C6 Terminal 4 frequency setting bias
C38 Terminal 4 bias command (torque/
magnetic flux)
C39 Terminal 4 bias (torque/magnetic flux)
—
Setting range
Set the bias torque (magnetic flux) for the terminal 4
0% to 400%
input.
Set the converted % of the bias current (voltage) for the
0% to 300%
terminal 4 input.
Set the gain (maximum) torque (magnetic flux) for the
0% to 400%
terminal 4 input.
Set the converted % of the gain current (voltage) for the
0% to 300%
terminal 4 input.
0 % display
1 V/mA display
270.)
Calibration parameter
Bias setting
Description
Select the unit for analog input
display.
Gain setting
Pr.126 Terminal 4 frequency setting gain
frequency
C7 Terminal 4 frequency setting gain
C40 Terminal 4 gain command (torque/
magnetic flux)
C41 Terminal 4 gain (torque/magnetic flux)
—
page 266.)