Basic operation procedure (External operation)
Setting the frequency with analog signals (voltage input)
Turn ON the STF (STR) signal to give a start command.
Use the potentiometer (frequency setting potentiometer) to give a frequency command (by con-
necting it across terminals 2 and 5 (voltage input)).
(The inverter supplies 5 V power to the frequency setting potentiometer (terminal 10).)
Operation example: Operate at 60 Hz.
Screen at power-ON
The monitor display appears.
Turn ON the start switch (STF or STR). [FWD] or [REV] flickers as no frequency command is given.
Acceleration ➔ constant speed
Turn the potentiometer (frequency setting potentiometer) clockwise slowly to full. The frequency value on the
indication increases in Pr. 7 "Acceleration time", and "
forward rotation, and [REV] indicator is lit during the reverse rotation.
Turn the potentiometer (frequency setting potentiometer) counterclockwise slowly to full. The frequency value on the
indication decreases in Pr. 8 "Deceleration time", and the motor stops rotating with "
[FWD] or [REV] indicator flickers.
Turn OFF the start switch (STF or STR). [FWD] or [REV] indicator turns OFF.
When both the forward rotation switch (STF) and the reverse rotation switch (STR) are ON, the
motor cannot be started. If both are turned ON while the motor is running, the motor 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"). (Both settings are initial values.)
Parameters referred to
4 - 26
Forward rotation start
Reverse rotation start
Frequency setting by analog voltage input
Operate the inverter by using the analog voltage input
STF terminal function selection
STR terminal function selection
" (60.00 Hz) appears. [FWD] indicator is lit during the
" (0.00 Hz) displayed.