Mitsubishi Electric FR-A741-11K, Инструкция пользователя

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93
Make a start and stop with terminals
(external operation)
4
DRIVE THE MOT
O
R
4.5.5 Perform frequency setting by analog (current input)
[Connection diagram]
POINT
· Switch terminal STF(STR)-SD on to give a start command.
· Turn the AU signal on.
· Set "2" (external operation mode) in
Pr. 79 Operation mode selection
REMARKS
Pr. 184 AU terminal function selection must be set to "4" (AU signal) (initial value). (Refer to chapter 4 of the instruction manual
(applied).)
5( - )
4(+)
Three-phase
AC power supply
AU
Motor
Inverter
R/L1
S/L2
T/L3
U
V
W
AU signal
STF
Forward rotation start
Reverse rotation start
STR
Current signal
source
(4 to 20mADC)
SD
CAUTION
2.
Start
Turn the start switch (STF or STR) on.
FWD or REV of operation indication flickers.
5.
Stop
Turn the start switch (STF or STR) off.
1.
Power on
→
operation mode check
For the initial setting, the inverter operates in
external operation mode [EXT] when
powering on. Check that the operation
command indication is [EXT]. If not displayed,
press to change to the external [EXT]
operation mode. If the operation mode still does
not change, set
Pr. 79
to change to external
operation mode.
Display Operation
Forward
rotation
Reverse
rotation
Forward
rotation
Reverse
rotation
ON
OFF
ON
Flickering
Flickering
Stop
When both the forward switch and reverse
switch are on, the inverter will not start.
Also, if both switches turn on while running,
the inverter decelerates to stop.
4.
Deceleration
Perform 4mA input.
The frequency value on the indication
decreases according to
Pr. 8 Deceleration time
until " " (0.00Hz) is displayed and FWD
or REV of the operating status indication flickers.
The motor stops.
Current signal
source output
(4 to 20mADC)
Current signal
source output
(4 to 20mADC)
3.
Acceleration
→
constant speed
Perform 20mA input.
The frequency value on the indication
increases according to
Pr. 7 Acceleration time
until " " (60.00Hz) is displayed.
(Refer to page 62.)