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 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 5 V, 0 to 10 V or 0/4 to 20 mA DC).
These parameters can be used to configure the inverter precisely for set point signals that either ex-
ceed or do not quite reach 5 V or 10 V or 20 mA. 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-E700 SC EC/ENE
Initial Value Setting Range Description
Set the frequency of terminal 2 input gain
50 Hz 0–400 Hz
(maximum).
Set the frequency of terminal 4 input gain
50 Hz 0–400 Hz
(maximum).
0 Displayed in %
0
1 Displayed in V/mA
Set the frequency on the bias side of
0 Hz 0–400 Hz
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
0 Hz 0–400 Hz
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 Acceleration/
deceleration reference
frequency
73 Analog input selection
267 Terminal 4 input
selection
Select the unit of
79 Operation mode
analog input display.
selection
Refer to
Section
6.7.1
6.16.1
6.16.1
6.18.1
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