Setting The Frequency By Analog Input (Voltage Input) - Mitsubishi Electric FR-F720P-0.75K Instruction Manual

4.4.4

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 (by connecting terminal 2 and 5) to give a frequency command.
· 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.
Operation
1. Screen at power-ON
The monitor display appears.
2. Operation mode setting
Set "4" in Pr.79.
[PU] indicator and [EXT] indicator are lit.
(To change the set value, refer to page 48)
3. Start
Press or .
[FWD] or [REV] is flickering as no frequency
command is given.
4. Acceleration → constant speed
Turn the potentiometer (frequency setting potentiometer) clock-
wise slowly to full.
The frequency value on the display increases according to Pr. 7
Acceleration time until "
5. Deceleration
Turn the potentiometer (frequency setting potentiometer) counter-
clockwise slowly to full. The frequency on the display decreases
in the Pr. 8 Deceleration time, and the motor stops rotating with
" " (0.00Hz) displayed.
[FWD] indicator or [REV] indicator flickers.
6. Stop
Press
[FWD] indicator or [REV] indicator turns OFF.
Change the frequency (60Hz) of the maximum value of potentiometer (at 5V)
Adjust the frequency in Pr. 125 Terminal 2 frequency setting gain frequency. (Refer to page 68.)
Change the frequency (0Hz) of the minimum value of potentiometer (at 0V)
Adjust the frequency in calibration parameter C2 Terminal 2 frequency setting bias frequency. (Refer to
Chapter 4 of
10
Frequency setting
potentiometer
"(60Hz) is displayed.
the Instruction Manual (Applied).)
Start/stop from the operation panel (PU
Inverter
Operation panel
(FR-DU07)
2
5
/
operation mode)
Display
Flickering
Stop
Flickering
59
4