Basic operation procedure (External operation)
4.6.4
Changing the frequency (60 Hz, initial value) at
the maximum voltage input (5 V, initial value)
Change the maximum frequency.
Changing example
With a 0 to 5 VDC input frequency setting potentiometer, 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.
Parameter selection
Turn
until
1.
Press
to show the present set value. (60.00 Hz)
Changing the maximum frequency
Turn
to change the set value to "
2.
Press
to enter the setting."
Checking the mode/monitor
3.
Press
three times to change to the monitor / frequency monitor.
Start
Turn ON the start switch (STF or STR), then turn the potentiometer (frequency setting potentiometer) clockwise slowly to full.
4.
(Refer to steps 2 and 3 in 4.6.3.)
Operate at 50 Hz.
NOTE
• 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
106
BASIC OPERATION
(Pr.125) appears.
". (50.00 Hz)
" and "
60Hz
(50Hz)
Output frequency
(Hz)
Bias
C2
(Pr.902)
0
Frequency setting signal
0
0
C3(Pr.902)
page 314
page 314
page 314
Operation
" flicker alternately.
Initial value
Gain
100%
5V
10V
C4(Pr.903)
Pr.125