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Start/stop from the operation panel (PU operation)
5
5.1.4 Setting the frequency by analog input (voltage input/current input)
POINT
y Use the operation panel ( ) to give a start command.
y Use the potentiometer (frequency setting potentiometer) (voltage input) or 4-to-20mA input (current input) to
give a frequency command.
y Set "4" (External/PU combined operation mode 2) in Pr. 79 Operation mode selection.
[Connection example for voltage input] [Connection example for current input]
(The inverter supplies 5V power to the frequency setting
potentiometer. (terminal 10))
Assign the AU signal in one of Pr. 178 to Pr. 182.
Operation example Operate at 60Hz.
Operation
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 4 to change the setting.)
Turn ON the AU signal.
3.
Easy operation mode setting
Press and for 0.5s. " " appears, and the [PRM] indicator flickers.
4.
Operation mode selection
Turn until " " appears. [PU] and [PRM] indicators flicker.
5.
Operation mode setting
Press to enter the setting. (Set "4" in Pr.79.)
" " and " " flicker alternately. [PU] and [EXT] indicators are lit.
6.
Start
Press . [RUN] flickers fast as no frequency command is given.
7.
Acceleration Æ constant speed
For voltage input, turn the potentiometer (frequency setting potentiometer) clockwise slowly to full.
For current input, input 20mA.
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.
8.
Deceleration
For voltage input, turn the potentiometer (frequency setting potentiometer) counterclockwise slowly to full.
For current input, input 4mA.
The frequency value on the display decreases in
Pr. 8
Deceleration time
, and the motor stops rotating with " " (0.00Hz) displayed.
[RUN] flickers fast.
9.
Stop
Press . [RUN] indicator turns OFF.
REMARKS
y For voltage input, the frequency (maximum potentiometer setting) at the full right turn of the (frequency setting) potentiometer is
60Hz in the initial setting. (To change the setting, use Pr. 125.) (Refer to page 28.)
y For current input, the frequency at 20mA input is 60Hz in the initial setting. (To change the setting, use Pr. 126.) ( Refer to
Chapter 4 of the Instruction Manual (Applied.))
y To input 10VDC to the terminal 2, set Pr. 73 Analog input selection = "0". The initial value is "1 (0 to 5V input)" ( Refer to
Chapter 4 of the Instruction Manual (Applied.)).
5
10
2
Frequency
setting
potentiometer
Inverter
Operation
panel
5(-)
4(+)
SD
Inverter
Operation
panel
AU signal
Current signal
source
(4 to 20mADC)
AU signal
(terminal RH)