Step Of Operation - Mitsubishi Electric FR-A720-0.4K Instruction Manual

Step of operation

1.2 Step of operation
The inverter needs frequency command and start command. Frequency command (set frequency) determines the
rotation speed of the motor. Turning ON the start command starts the motor to rotate.
Refer to the flow chart below to perform setting.
: Initial setting
(Hz)
Frequency
command
Start command with
on the operation panel (PU)
How to
give a frequency
command?
Set from the
PU (FR-DU07/
FR-PU04/
FR-PU07).
(PU)
{Refer to page 82}
CAUTION
Check the following items before powering on the inverter.
· Check that the inverter is installed correctly in a correct place. (Refer to page 8)
· Check that wiring is correct. (Refer to page 9)
· Check that no load is connected to the motor.
·When protecting the motor from overheat by the inverter, set Pr.9 Electronic thermal O/L relay (Refer to
page 58)
· When the rated frequency of the motor is 50Hz, set Pr.3 Base frequency (Refer to page 58)
2
Frequency command
Inverter
output
frequency
Time
(S)
ON
Perform frequency
Change frequency
setting by a current
with ON/OFF switches
output device
connected to terminals
(Connection across
(multi-speed setting)
terminals 4 and 5)
(External)
{Refer to page 84} {Refer to page 86}
Set from the
PU (FR-DU07/
FR-PU04/
FR-PU07).
(PU)
{Refer to page 87}
Step of operation
Step of operation f op
{Refer to page 8}
Installation/mounting
Wiring of the power
{Refer to page 11}
supply and motor
{Refer to page 63, 66}
Control mode selection
Start command using the PU connector and
How
RS-485 terminal of the inverter and plug-in option
to give a start
(Communication)
command?
Refer to Chapter 4 of
Connect a switch, relay, etc.
to the control circuit
terminal block of the inverter
to give a start command. (External)
Perform frequency
setting by a voltage
output device
(Connection across
terminals 2 and 5)
(External) (External)
{Refer to page 85}
Change of frequency
with ON/OFF switches
connected to terminals
(multi-speed setting)
(External)
{Refer to page 88}
the Instruction Manual (Applied).
How to
give a frequency
command?
Perform frequency
Perform frequency
setting by a current
setting by a voltage
output device
output device
(Connection across
(Connection across
terminals 4 and 5)
terminals 2 and 5)
(External)
{Refer to page 91} {Refer to page 89}
(External)