Setting The Frequency By Analog Input (Voltage Input) - Mitsubishi Electric FR-A720-0.4K Instruction Manual

3.3.4

Setting the frequency by analog input (voltage input)

POINT
· Use or on the operation panel (FR-DU07) to give a start command.
· Use the potentiometer to give a frequency command. (by connecting terminal 2 and 5 (voltage input))
· Set "4" (External/PU combination operation mode 2) in Pr. 79 Operation mode selection.
[Connection diagram]
(The inverter supplies 5V of power to the frequency setting potentiometer.(Terminal 10))
Operation example Performing operation at 60Hz.
Screen at power-ON
1.
The monitor display appears.
Operation mode change
2.
Set "4" in Pr. 79. [PU] indicator and [EXT] indicator are lit. (
Start
3.
Press or
Acceleration constant speed
4.
Turn the potentiometer (frequency setting potentiometer) clockwise slowly to full. The frequency value on the indicator
increases according to Pr. 7 Acceleration time until "
Deceleration
Turn the potentiometer (frequency setting potentiometer) counterclockwise slowly to full. The frequency on the indicator
5.
decreases by the Pr. 8 Deceleration time, and the motor stops rotating with "
[FWD] indicator or [REV] indicator flickers.
Stop
6.
Press . [FWD] indicator or [REV] indicator turns OFF.
Change the frequency (60Hz) of the maximum value of potentiometer (at 5V, initial value)
Adjust the frequency in Pr. 125 Terminal 2 frequency setting gain frequency. (Refer to page 90.)
Change the frequency (0Hz) of the minimum value of potentiometer (at 0V, initial value)
Adjust the frequency in calibration parameter C2 Terminal 2 frequency setting bias frequency. (Refer to
Chapter 4 of
Frequency setting
potentiometer
Potentiometer
. [FWD] or [REV] is flickering as no frequency command is given.
the Instruction Manual (Applied).)
Start/stop using the operation panel (PU
Inverter
Operation panel
(FR-DU07)
10
2
5
Operation
Refer to page 53
to change the setting.)
"(60Hz) is displayed.
operation)
" (0.00Hz) displayed on the indicator.
3
85