Bias And Gain Of Frequency Setting Voltage (Current); [Pr. 125, Pr. 126, Pr. 241, C2 (Pr. 902) To C7 (Pr. 905)] - Mitsubishi Electric FR-E700 Series Instruction Manual

Parameter
6.16.3

Bias and gain of frequency setting voltage (current)

[Pr. 125, Pr. 126, Pr. 241, C2 (Pr. 902) to C7 (Pr. 905)]

You can set the magnitude (slope) of the output frequency as desired in relation to the frequency set-
ting signal (0 to 5V, 0 to 10V or 0/4 to 20mA DC).
These parameters can be used to configure the inverter precisely for set point signals that either ex-
ceed or do not quite reach 5V or 10V or 20mA. These settings can also be used to configure inverse
control (i.e. high output frequency at minimum set point signal, minimum output frequency at max-
imum set point signal).
Pr. No. Name
Terminal 2 frequency setting gain
125
frequency
Terminal 4 frequency setting gain
126
frequency
Analog input display unit
241
switchover
C2
Terminal 2 frequency setting bias
(902)
frequency
C3
Terminal 2 frequency setting
(902)
bias
C4
Terminal 2 frequency setting
(903)
gain
C5
Terminal 4 frequency setting
(904)
bias frequency
C6
Terminal 4 frequency setting
(904)
bias
C7
Terminal 4 frequency setting
(905)
gain
The above parameters can be set when Pr. 160 "User group read selection" = 0.
The parameter number in parentheses is the one for use with the operation panel (PA02) for the
FR-E500 series or parameter unit (FR-PU04/FR-PU07).
The above parameter 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".
FR-E700SC EC
Initial Value Setting Range Description
Set the frequency of terminal 2 input gain
50Hz 0–400Hz
(maximum).
Set the frequency of terminal 4 input gain
50Hz 0–400Hz
(maximum).
0 Displayed in %
0
1 Displayed in V/mA
Set the frequency on the bias side of
0Hz 0–400Hz
terminal 2 input.
Set the converted % of the bias side voltage
0% 0–300%
(current) of terminal 2 input.
Set the converted % of the gain side voltage
100% 0–300%
of terminal 2 input.)
Set the frequency on the bias side of
0Hz 0–400Hz
terminal 4 input.
Set the converted % of the bias side current
20% 0–300%
(voltage) of terminal 4 input.
Set the converted % of the gain side current
100% 0–300%
(voltage) of terminal 4 input.
Frequency setting by analog input (terminal 2, 4)
Parameters referred to
20
73
267
Select the unit of
79
analog input display.
Refer to
Section
Acceleration/ 6.7.1
deceleration reference
frequency
Analog input selection 6.16.1
Terminal 4 input 6.16.1
selection
Operation mode 6.18.1
selection
6 - 181