Mitsubishi Electric FR-A700 EC, Instruction Manual

Page: 566 / 826

Frequency/torque setting by analog input (terminals 1, 2 and 4) Parameter
6 - 386
There are three methods to adjust the frequency setting voltage (current) bias/gain:
●
Method to adjust any point by application of voltage (current) to across the terminals 2-5
(4-5). (Refer to page 6-388.)
●
Method to adjust any point without application of a voltage (current) to across terminals 2-
5 (4-5). (Refer to page 6-389.)
●
Adjusting only the frequency without adjusting the voltage (current).
(Refer to page 6-390.)
I001191E
Fig. 6-186: Signal adjustment of terminal 2
I001191E
Fig. 6-187: Signal adjustment of terminal 4
NOTES
When the terminal 2 is calibrated to change the inclination of the set frequency, the setting of
the terminal 1 is also changed.
When a voltage is input to the terminal 1 to make calibration, (terminal 2 (4) analog value +
terminal 1 analog value) is the analog calibration value.
When the voltage/current input specifications were changed using Pr. 73 and Pr. 267, be
sure to make calibration.
Frequency setting signal
Output frequency [Hz]
0
0
0
C3 (Pr. 902)
C13 (Pr. 917) 100%
5V
10V
C4 (Pr. 903)
C15 (Pr. 918)
Gain
Pr. 125
C14 (Pr. 918)
Initial value
Bias
50Hz
C2 (Pr. 902)
C12 (Pr. 917)
Frequency setting signal
Output frequency [Hz]
0
0
C6 (Pr. 904) 100%
20mA
C7 (Pr. 905)
Gain Pr. 126
Initial value
Bias
50Hz
C5
(Pr. 904)