Mitsubishi Electric FR-A700 EC, Instruction Manual

Page: 562 / 826

Frequency/torque setting by analog input (terminals 1, 2 and 4) Parameter
6 - 382
6.20.5 Bias and gain of frequency setting voltage (current) [Pr. 125, Pr. 126,
Pr. 241, C2 (Pr. 902) to C7 (Pr. 905), C12 (Pr. 917) bis 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 0/4 to 20mA DC).
These parameters can be used to configure the inverter precisely for set point signals that either
exceed 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 maximum set point signal).
The parameter number in parentheses is the one for use with the parameter unit (FR-PU04
or 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".
Pr. No. Name
Initial
Value
Setting
Range
Description Parameters referred to
Refer to
Section
125
Terminal 2 frequency setting
gain frequency
50Hz 0–400Hz
Set the frequency of terminal 2
input gain (maximum).
20
73
267
79
Acceleration/
deceleration
reference
frequency
Analog input
selection
Terminal 4 input
selection
Operation mode
selection 6.11.1
6.20.2
6.20.2
6.22.1
126
Terminal 4 frequency setting
gain frequency
50Hz 0–400Hz
Set the frequency of terminal 4
input gain (maximum).
241
Analog input display unit
switchover
0
0 Displayed in %
Select the unit of
analog input
display.
1
Displayed in
V/mA
C2
(902)
Terminal 2 frequency setting
bias frequency
0Hz 0–400Hz
Set the frequency on the bias side
of terminal 2 input.
C3
(902)
Terminal 2 frequency setting
bias
0% 0–300%
Set the converted % of the bias
side voltage (current) of terminal
2 input.
C4
(903)
Terminal 2 frequency setting
gain
100% 0–300%
Set the converted % of the gain
side voltage of terminal 2 input.
C5
(904)
Terminal 4 frequency setting
bias frequency
0Hz 0–400Hz
Set the frequency on the bias side
of terminal 4 input.
C6
(904)
Terminal 4 frequency setting
bias
20% 0–300%
Set the converted % of the bias
side current (voltage) of terminal
4 input.
C7
(905)
Terminal 4 frequency setting
gain
100 % 0–300 %
Set the converted % of the gain
side current (voltage) of terminal
4 input.
C12
(917)
Terminal 1 bias frequency
(speed)
0 Hz 0–400 Hz
Set the frequency (speed) on the
bias side of terminal 1 input.
C13
(917)
Terminal 1 bias (speed)
0 % 0–300 %
Set the converted % of the bias
side voltage of terminal 1 input.
C14
(918)
Terminal 1 gain frequency
(speed)
50 Hz 0–400 Hz
Set the frequency (speed) of ter-
minal 1 input gain (maximum).
C15
(918)
Terminal 1 gain (speed)
100 % 0–300 %
Set the converted % of the gain
side voltage of terminal 1 input.