Basic operation
Basic operation procedure (External operation)
FR-A800
4 - 27
4.6.4
Changing the frequency (60 Hz, initial value) at the maximum voltage input
(5 V, initial value)
Change the maximum frequency
Example
Operation example
For a frequency setting potentiometer with 0 to 5 V DC input, change the frequency at 5 V from 60
Hz (initial value) to 50 Hz.
Adjust the setting so that the inverter outputs 50 Hz when 5 V is input. Set "50 Hz" in Pr. 125.
Operation
Parameter selection
Turn
until
(Pr. 125) appears.
Press
to show the present set value (60.00 Hz).
Changing the maximum frequency
Turn
to change the set value to "
" (50.00 Hz).
Press
to enter the setting. "
" and "
" flicker alternately.
Checking the mode/monitor
Press
three times to change to the monitor / frequency monitor.
Start
Turn ON the start switch (STF or STR), then turn the frequency setting potentiometer clockwise slowly to full. (Refer to
steps
and
The motor is operated at 50 Hz.
Tab. 4-18:
Change the frequency of the maximum analog value
NOTES
To set the frequency at 0 V, use the calibration parameter C2.
Other adjustment methods for the frequency setting voltage gain are the following: adjustment
by applying a voltage directly across terminals 2 and 5, and adjustment using a specified point
without applying a voltage across terminals 2 and 5.
Parameters referred to
Pr. 125
Terminal 2 frequency setting gain frequency
=>
C2 (Pr. 902)
Terminal 2 frequency setting bias frequency
=>
C4 (Pr. 903)
Terminal 2 frequency setting gain
=>
Frequency setting signal
Output frequency [Hz]
0
0
0
100%
5 V
10 V
C4 (Pr. 903)
Gain Pr. 125
Initial value
Bias
60 Hz
(50 Hz)
C2 (Pr. 902)
C3 (Pr. 902)
Содержание FR-A820-00046 (0.4K)
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