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Setting The Frequency By Switches (multi-speed Setting) - Mitsubishi Electric FR-A720-0.4K Instruction Manual

Fr-a700 series.
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Start/stop using the operation panel (PU
operation)
3.3.3

Setting the frequency by switches (multi-speed setting)

POINT
· Use
or
on the operation panel (FR-DU07) to give a start command.
· Switch ON the RH, RM, or RL signal to give a frequency command. (Multi-speed setting)
· Set "4" (External/PU combination operation mode 2) in Pr. 79 Operation mode selection.
[Connection diagram]
High speed
Middle speed
Low speed
Switch
Operation example Operate in low-speed (10Hz).
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. (Refer to page 53 to change the setting.)
Frequency setting
3.
Turn ON the low-speed switch (RL).
Start
Acceleration
4.
Press
or
"
" (10.00Hz) appears.
Deceleration
stop
5.
Press
to stop. The frequency on the indicator decreases by the Pr. 8 Deceleration time, and the motor stops rotating
with "
" (0.00Hz) displayed on the indicator. Turn OFF the low-speed switch (RL).
REMARKS
· Initial value of terminal RH, RM, and RL are 60Hz, 30Hz, and 10Hz. (To change, set Pr. 4, Pr. 5, and Pr. 6.)
· In the initial setting, when two or more of multi-speed settings are simultaneously selected, priority is given to the set frequency
of the lower signal. For example, when RH and RM signals turn ON, RM signal (Pr. 5) has a higher priority.
· Maximum of 15-speed operation can be performed.
84
Inverter
RH
Operation panel
RM
(FR-DU07)
RL
SD
Operation
constant speed
to start running. The frequency on the indicator increases by the Pr. 7 Acceleration time, and
(Refer to
Chapter 4 of
Speed 1
(High speed)
Speed 2
(Middle speed)
Speed 3
(Low speed)
ON
RH
ON
RM
ON
RL
the Instruction Manual (Applied).)
Time

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