Changing the frequency (60 Hz, initial value) at the
maximum voltage input (5 V, initial value)
• Change the maximum frequency.
The following shows the procedure to change the frequency at 5 V from 60 Hz (initial value) to 50 Hz using a frequency setting
potentiometer for 0 to 5 VDC input. Set 50 Hz in Pr.125 so that the inverter outputs 50 Hz at 5 V input.
Selecting the parameter
Changing the maximum frequency
Selecting the mode and the monitor item
Turn ON the start switch (STF/STR signal), and turn the frequency setting potentiometer clockwise slowly to full.
(Refer to steps 2 and 3 in 4.6.3.)
The motor is operated at 50 Hz.
• To change the frequency at the input of 0 V (minimum voltage), 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. (Refer
Parameters referred to
Pr.125 Terminal 2 frequency setting gain
C2 (Pr.902) Terminal 2 frequency setting bias
C4 (Pr.903) Terminal 2 frequency setting
4. BASIC OPERATION
4.6 Basic operation procedure (External operation)
" (Pr.125) appears.
to read the present set value. (60.00 Hz)
to change the set value to "
to confirm the selection. "
three times to select the monitor mode, and change the monitor item to the frequency.
". (50.00 Hz)
" and "
"are displayed alternately.
Frequency setting signal