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Start and stop using terminals (External operation)
5.2.3 Setting the frequency by analog input (voltage input)
POINT
y Switch ON the STF(STR) signal to give a start command.
y Use the potentiometer (frequency setting potentiometer) to give a frequency command.
[Connection diagram]
(The inverter supplies 5V power to the
frequency setting potentiometer.
(terminal 10))
Operation example Operate at 60Hz.
Operation
1.
Screen at power-ON
The monitor display appears.
2.
Start
Turn the start switch (STF or STR) ON.
[RUN] flickers fast because the frequency command is not given.
3.
Acceleration Æ constant speed
Turn the potentiometer (frequency setting potentiometer) clockwise slowly to full.
The frequency value on the display increases in Pr. 7 Acceleration time, and " " (60.00Hz) appears.
[RUN] indicator is lit during forward rotation operation and flickers slowly during reverse rotation operation.
4.
Deceleration
Turn the potentiometer (frequency setting potentiometer) counterclockwise slowly to full.
The frequency value on the
display
decreases in
Pr. 8 Deceleration time
,
and the motor stops rotating with " " (0.00Hz)
displayed
.
[RUN] flickers fast.
5.
Stop
Turn the start switch (STF or STR) OFF.
[RUN] turns OFF.
REMARKS
y The frequency at the full clockwise turn of the potentiometer (frequency setting potentiometer) (maximum potentiometer
setting) is 60Hz in the initial setting. (To change the setting, use Pr.125.) (Refer to page 27.)
Frequency setting
potentiometer
Inverter
5
10
2
Forward rotation start
Reverse rotation start
STF
STR
SD