• When both the forward rotation start switch (STF signal) and the reverse rotation start switch (STR signal) are turned ON, the
motor cannot be started. If both are turned ON while the inverter is running, the inverter decelerates to a stop.
• Pr.178 STF terminal function selection must be set to "60" (or Pr.179 STR terminal function selection must be set to "61")
Parameters referred to
Pr.7 Acceleration time, Pr.8 Deceleration
Pr.178 STF terminal function selection, Pr.179 STR terminal function
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.
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