150
Speed setting by analog input (terminal 2, 4)
4.14.2 Setting the speed by analog input (voltage input / current input)
POINT
Switch ON the STF (STR) signal to give a start command.
Use the potentiometer (speed setter) (voltage input) or 4 to 20mA input (current input) to set a speed.
[Connection diagram voltage input]
[Connection diagram current input]
(The dirve unit supplies 5V power to the speed setting
potentiometer. (terminal 10))
Assign the AU signal in any of
Pr. 178 to Pr. 182
.
Operation example
Operate at 3000r/min.
Operation
Display
1.
Screen at power-ON
The monitor display appears.
2.
Assignment of the AU signal (current
input)
(Refer to the step 3 for voltage input.)
Set
Pr. 160
to "0" to activate extended parameters.
To assign the AU signal, set "4" in one of
Pr. 178 to
Pr. 182
. (
Refer to page 53
to change the setting.)
Turn ON the AU signal.
3.
Start
Turn ON the start switch (STF or STR).
[RUN] indicator blinks fast because the speed
command is not given.
4.
Acceleration
constant speed
For voltage input, turn the potentiometer (speed
setting potentiometer) clockwise slowly to full.
For current input, input 20mA.
The speed value on the display increases in
Pr. 7
Acceleration time
, and
"
" (3000r/min)
appears.
[RUN] indicator is lit during forward rotation
operation and blinks slowly during reverse
rotation operation.
5.
Deceleration
For voltage input, turn the potentiometer (speed
setting potentiometer) counterclockwise slowly to
full.
For current input, input 4mA.
The speed value on the display decreases in
Pr. 8
Deceleration time,
and the motor stops rotating with
"
" (0r/min) displayed.
[RUN] blinks fast.
Forward rotation start
Reverse rotation start
Drive unit
5
10
2
STF
STR
SD
Speed
setting
potentiometer
Drive unit
5(-)
4(+)
SD
STF
STR
Forward rotation start
Reverse rotation start
AU signal (terminal RH)
AU signal
Current signal
source
(4 to 20mADC)
ON
Forward
rotation
Reverse
rotation
ON
Blinking
Blinking
Stop
Summary of Contents for FR-D720-0.2K-G
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