Perform Frequency Setting By Analog (Voltage Input) - Mitsubishi Electric FR-A700 Series Instruction Manual

3.5.3

Perform frequency setting by analog (voltage input)

[Connection diagram]
(The inverter supplies 5V of power to frequency setting potentiometer. (Terminal 10))
Forward rotation
start
Reverse rotation
start
1.
Power on → operation mode check
For the initial setting, the inverter operates
in the external operation mode [EXT] when
powering on. Check that the operation
command indication is [EXT]. If not displayed,
press
operation mode. If the operation mode still
does not change, set Pr. 79 to change to the
external operation mode.
2.
Start
Turn the start switch (STF or STR) on.
Operation status indication of FWD (or REV)
flickers.
CAUTION
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.
3.
Acceleration → constant speed
Turn the volume (frequency setting
potentiometer) clockwise slowly to full.
The frequency value on the indication
increases according to Pr. 7
Acceleration time until 60Hz is displayed.
4.
Deceleration
Turn the volume (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.
When you want to operate in the external operation mode always at powering on or when you want to
save the trouble of
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
Frequency setting
potentiometer
Operation
to change to the external [EXT]
(Refer to page 54.)
input, set "2" (external operation mode) in Pr. 79 Operation mode selection to
Make a start and stop with terminals
Inverter
R/L1
U
Motor
S/L2
V
T/L3
W
STF
STR
SD
10
2
5
Display
ON
Forward
rotation Reverse
rotation
ON
Forward
rotation Reverse
rotation
OFF
(external operation)
Flickering
Flickering
Stop
81
3