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Mitsubishi Electric FR-F800 Series Instruction Manual page 128

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Pr.125 Terminal 2 frequency setting gain
C2 (Pr.902) Terminal 2 frequency setting bias
4.5.5
• Use
• Use the current regulator which outputs 4 to 20 mA to give a frequency command (by connecting it across terminals 4 and 5
(current input)).
• Turn ON the AU signal.
• Set Pr.79 Operation mode selection = "4" (External/PU combination operation mode 2).
[Connection diagram]
AU signal
Current signal
source
(4 to 20mADC)
The following shows the procedure to operate at 60 Hz.
Operating procedure
1.
Turning ON the power of the inverter
The operation panel is in the monitor mode.
2.
Changing the operation mode
Set "4" in Pr.79. [PU] and [EXT] indicators are ON. (To change the setting, refer to
3.
Selecting the input via terminal 4
Turn ON the Terminal 4 input selection (AU) signal. Input via terminal 4 to the inverter is enabled.
4.
Start
Press
5.
Acceleration → constant speed
Input a current of 20 mA to the inverter from the regulator. The frequency value on the monitor increases according
to the setting of Pr.7 Acceleration time, and "
6.
Deceleration
Input a current of 4 mA or less. The frequency value on the monitor decreases according to the setting of Pr.8
Deceleration time, the monitor displays "
blinks.
7.
Stop
Press
NOTE
• Pr.184 AU terminal function selection must be set to "4 (initial value)" (AU signal).
• To change the frequency (60 Hz) at the maximum current input (initial value: 20 mA), adjust Pr.126 Terminal 4 frequency
setting gain frequency.
• To change the frequency (0 Hz) at the minimum current input (initial value: 4 mA), adjust the calibration parameter C5
Terminal 4 frequency setting bias frequency.
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frequencypage 357
frequencypage 357
Setting the frequency using an analog signal
(current input)
or
on the operation panel (FR-DU08) to give a start command.
Inverter
AU
SD
4(+)
5(-)
or
. [FWD] or [REV] indicator blinks as no frequency command is given.
. [FWD] or [REV] indicator turns OFF.
search engine
Operation panel
(FR-DU08)
" (60.00 Hz) appears on the monitor.
" (0.00 Hz), and the motor stops rotating. [FWD] or [REV] indicator
page
116.)
4. BASIC OPERATION
4.5 Basic operation procedure (PU operation)
1
2
3
4
5
6
7
8
9
10
127

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