91
Make a start and stop with terminals
4.5.3
Perform frequency setting by analog (voltage input)
[Connection diagram]
(The inverter supplies 5V of power to frequency setting potentiometer. (Terminal 10))
When you want to operate in external operation mode always at powering on or when you want to
save the trouble of
input, set "2" (external operation mode) in
Pr. 79 Operation mode selection
to
choose external operation mode always.
REMARKS
Pr. 178 STF terminal function selection
must be set to "60" (or
Pr. 179 STR terminal function selection
must be set to "61").
(all are initial values)
Three-phase
AC power supply
Motor
Frequency setting
potentiometer
Inverter
R/L1
S/L2
T/L3
U
V
W
5
10
2
Forward rotation
start
Reverse rotation
start
STF
STR
SD
CAUTION
2.
Start
Turn the start switch (STF or STR) on.
Operating status indication of FWD (or REV)
flickers.
4.
Deceleration
Turn the potentiometer (frequency setting
potentiometer) counterclockwise slowly to full.
The frequency value of the indication
decreases according to
Pr. 8 Deceleration
time
until (0.00Hz) is displayed.
The motor stops.
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.
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.
Display
Operation
.
3.
Acceleration
→
constant speed
Turn the potentiometer (frequency setting
potentiometer) clockwise slowly to full.
The frequency value on the indication
increases according to
Pr. 7
Acceleration time
until (60Hz) is displayed.
.
(Refer to page 62.)
Summary of Contents for FR-A741-11K
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