Bias And Gain Of Frequency Setting Voltage (Current) (Pr. 125, Pr. 126, Pr. 241, C2(Pr. 902) To C7(Pr. 905), C12(Pr. 917) To C15(Pr. 918)) - Mitsubishi Electric FR-A720-00030-NA Instruction Manual

4.21.5 Bias and gain of frequency setting voltage (current)
(Pr. 125, Pr. 126, Pr. 241, C2(Pr. 902) to C7(Pr. 905), C12(Pr. 917) to C15(Pr. 918))
You can set the magnitude (slope) of the output frequency as desired in relation to the frequency setting signal (0
to 5V, 0 to 10V or 0 to 20mADC).
Set Pr. 73, Pr. 267 and voltage/current input switch to switch between 0 to 5VDC, 0 to 10VDC and 4 to 20mADC.
(Refer to page 291)
Frequency setting bias/gain parameter

Parameter
Number
Terminal 2 frequency setting gain
125
frequency
Terminal 4 frequency setting gain
126
frequency
Analog input display unit
241
*2
switchover
Terminal 2 frequency setting bias
C2(902)
*1
frequency
Terminal 2 frequency setting bias
C3(902)
*1
C4(903) Terminal 2 frequency setting gain
*1
Terminal 4 frequency setting bias
C5(904)
*1
frequency
C6(904) Terminal 4 frequency setting bias
*1
C7(905) Terminal 4 frequency setting gain
*1
Speed limit bias/gain parameter

Parameter
Number
C12(917) Terminal 1 bias frequency (speed)
*1
C13(917) Terminal 1 bias (speed)
*1
C14(918) Terminal 1 gain frequency (speed)
*1
C15(918) Terminal 1 gain (speed)
*1
*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.
Name Initial Value
60Hz
60Hz
0Hz
0%
100%
0Hz
20%
100%
Name Initial Value
0Hz
0%
60Hz
100%
Frequency/torque setting by analog
Setting
Range
Set the frequency of terminal 2 input gain
0 to 400Hz
(maximum).
Set the frequency of terminal 4 input gain
0 to 400Hz
(maximum).
0 Displayed in %
0
1 Displayed in V/mA
Set the frequency on the bias side of
0 to 400Hz
terminal 2 input.
Set the converted % of the bias side
0 to 300%
voltage (current) of terminal 2 input.
Set the converted % of the gain side
0 to 300%
voltage (current) of terminal 2 input.
Set the frequency on the bias side of
0 to 400Hz
terminal 4 input.
Set the converted % of the bias side
0 to 300%
current (voltage) of terminal 4 input.
Set the converted % of the gain side
0 to 300%
current (voltage) of terminal 4 input.
Setting
Range
Set the frequency (speed) on the bias side
0 to 400Hz
of terminal 1 input.
Set the converted % of the bias side
0 to 300%
voltage of terminal 1 input.
Set the frequency (speed) of terminal 1
0 to 400Hz
input gain (maximum).
Set the converted % of the gain side
0 to 300%
voltage of terminal 1 input.
input (terminal 1, 2, 4)
Description
Select the unit of
analog input display.
Description
299
4