158
Selection of operation mode and operation location
4.15.4 Setting the speed by analog input (voltage input / current input)
POINT
Use the operation panel ( ) to give a start command.
Use the potentiometer (speed setting potentiometer) to give a speed command.
Set "4" (External/PU combined operation mode 2) in Pr. 79 Operation mode selection.
[Connection diagram voltage input] [Connection diagram current input]
(The drive unit supplies 5V of power to the speed setting
potentiometer. (terminal 10))
Assign the AU signal in one 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 51 to change the setting.)
Turn ON the AU signal.
3. Change the Pr. 79 setting to "4".
(Refer to page 50 for change of the setting.)
[PU] indicator and [EXT] indicator are lit.
4. Start
Turn ON .
[RUN] flickers fast as no speed command is given.
5. 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 indication increases in Pr. 7
Acceleration time, and " " (3000r/min) appears.
[RUN] indicator is lit during forward rotation operation and
flickers slowly during reverse rotation operation.
6. Deceleration
For voltage input, turn the potentiometer (speed setting
potentiometer) counterclockwise slowly to full.
For current input, input 4mA.
The speed value on the indication decreases in Pr. 8
Deceleration time, and the motor stops rotating with " "
(0r/min) displayed.
[RUN] flickers fast.
7. Stop
Switch power OFF .
[RUN] turns OFF.
REMARKS
Change the speed (3000r/min) at the maximum voltage input (5V initial value)
Adjust the speed in
Pr. 125 Terminal 2 speed setting gain speed
. (
Refer to page 135)
Change the speed (0r/min) at the minimum voltage input (0V initial value)
Adjust the speed in
calibration parameter C2 Terminal 2 speed setting bias speed
.
(Refer to page 135)
5
10
2
Speed
setting
potentiometer
Drive unit
Operation
panel
5(-)
4(+)
Current signal
source
(4 to 20mADC)
SD
AU signal
(terminal RH)
AU signal
Drive unit
Operation
panel
Flickering
Flickering
Stop
