Setting The Frequency By Analog Input (Current Input) - Mitsubishi 700 Series Instruction Manual

3.5.5

Setting the frequency by analog input (current input)

POINT
Switch terminal STF(STR)-SD ON to give a start command.
Frequency command is given by current input (across terminals 4 and 5.)
Set "4" in any of Pr. 178 to Pr. 182 (input terminal function selection) and turn the AU signal ON. (Refer to page 60)
Pr. 178 to Pr. 182 are extended parameters. Set "0" in Pr. 160. (Refer to page 74)
Set "2" (External operation mode) in Pr. 79 Operation mode selection .
[Connection diagram]
Operation
1.
Screen at powering ON
The monitor display appears.
2.
Start
Turn the start switch (STF or STR) ON.
[RUN] flickers fast because the frequency
command is not given.
3.
Acceleration constant speed
Perform 20mA input.
The frequency value on the display increases
according to Pr. 7 Acceleration time until
" " (60.00Hz) is displayed.
[RUN] display is lit during forward rotation
operation and flickers slowly during reverse
rotation operation.
4.
Deceleration
Perform 4mA input.
The frequency value on the display decreases
according to Pr. 8 Deceleration time until "
(0.00Hz) is displayed, and the motor is stopped.
[RUN] flickers fast.
5.
Stop
Turn the start switch (STF or STR) OFF.
[RUN] turns OFF.
Make a start and stop with terminals (External operation)
Forward rotation start
Reverse rotation start
AU signal
Current signal
source
(4 to 20mADC)
ON
Forward
rotation
Reverse
ON
rotation
Current signal
source
(4 to 20mADC)
Current signal
source
(4 to 20mADC)
"
Forward
rotation
Reverse
rotation
OFF
Inverter
STF
STR
AU signal (terminal RH)
SD
4(+)
5(-)
Display
Flickering
Flickering
Stop
69
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