Setting The Frequency By Switches (Three-Speed Setting) (Pr. 4 To Pr. 6) - Mitsubishi 700 Series Instruction Manual

3.4.3

Setting the frequency by switches (three-speed setting) (Pr. 4 to Pr. 6)

POINT
Use operation panel (
To give a frequency command, terminal between SD and RH, RM, or RL is turned ON. (three-speed setting)
Pr. 79 Operation mode selection must be set to "4" (External/PU combined operation mode 2).
[Connection diagram]
High speed
Middle speed
Low speed
Operation
Operation at low speed (10Hz)
example
Operation
1.
Screen at powering ON
The monitor display appears.
2.
Change the Pr. 79 setting to "4". (Refer to page 34 for change of the setting.)
[PU] display and [EXT] display are lit.
3.
Start
Turn ON the low-speed switch (RL).
4.
Acceleration
Press to start running.
The frequency value on the indication increases
according to Pr. 7 Acceleration time until "
(10.00Hz) is displayed.
[RUN] display is lit during forward rotation operation
and flickers slowly during reverse rotation operation.
5.
Deceleration
Press to stop.
The frequency value on the indication decreases
according to Pr. 8 Deceleration time and displays
" " (0.00Hz) when the motor is stopped.
6.
Stop
Turn OFF the low-speed switch (RL).
Start/stop from the operation panel (PU operation)
)
to give a start command.
Inverter
RH
RM
RL
SD
constant speed
"
Operation
panel
RH
RM
RL
Low
speed
High
ON
speed
Middle
speed
Low
speed
High
OFF
speed
Middle
speed
Speed 1
(High speed)
Speed 2
(Middle speed)
Speed 3
(Low speed)
Time
ON
ON
ON
Display
Stop
3
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