Справочник Пользователя для Mitsubishi Electronics FR-A700

· To prevent a malfunction due to noise, keep the signal cables more than 10cm away from the power cables. Also separate the main circuit wire

of the input side and the output side. 

· After wiring, wire offcuts must not be left in the inverter.Wire offcuts can cause an alarm, failure or malfunction. Always keep the inverter clean.

When drilling mounting holes in an enclosure etc., take care not to allow chips and other foreign matter to enter the inverter.

· Set the voltage/current input switch correctly. Different setting may cause a fault, failure or malfunction.

R/L1
S/L2
T/L3

R1/L11
S1/L21

10E(+10V)

10(+5V)

2

(Analog common)

2

3

1

1

4

Jumper

U
V

W

P1

0 to 

±10VDC

*1

0 to 5VDC
0 to 10VDC

MC

IM

0 to 20mADC

AU

PTC

SINK

SOURCE

*4

*3

*5

(+)

(-)

5

ON

OFF

(+)

(-)

*2

Earth (Ground) 

PX

PR

N/-

P/+

*8

*3.JOG terminal can be used 

as pulse train input terminal.

Use Pr. 291 to select 

JOG/pulse.

Main circuit terminal

Control circuit terminal

Three-phase AC 

power supply

MCCB

Jumper

Earth

(Ground) 

EMC filter
ON/OFF
connecter

Earth

(Ground)

selectable

selectable

0 to 

±5VDC

*5

4 to 20mADC

0 to 5VDC
0 to 10VDC

selectable

*5

Option connector 1

Option connector 2

Option connector 3

Connector 
for plug-in option 
connection

Frequency setting signal (Analog)

Frequency setting

 potentiometer

1/2W1k

Ω

*6

Control input signals (No voltage input allowed)

Forward

rotation

start

Reverse

rotation

start

Start self-

holding selection

Terminal functions vary with 
the input terminal 
assignment (Pr. 178 to Pr. 189)

Middle

speed

High speed

Low speed

Multi-speed 
selection

Jog operation

Second function selection

Output stop

Reset

Terminal 4 input selection

(Current input selection)

Selection of automatic restart 

after instantaneous 

power failure

USB
connector

PU
connector

Data reception

Data transmission

RS-485 terminals

Open collector output common
Sink

/source common

Frequency detection

Running

Up to frequency

Instantaneous 
power failure

Overload

Terminal functions 
vary with the output 
terminal assignment 
(Pr. 190 to Pr. 194)

Open collector output

(Permissible load 
current 100mA)

Relay output 2

Relay output 1
(Fault output)

Terminal functions 
vary with the output 
terminal assignment 
(Pr. 195, Pr. 196)

Relay output

Motor

*4.  AU terminal can be 

used as PTC input 
terminal.

*2.  To supply power to the 

control circuit separately, 
remove the jumper across 
R1/L11 and S1/L21.

*10. It is not necessary 

when calibrating the 
indicator from the 
operation panel.

*6.  It is recommended to use 2W1k

Ω 

when the frequency setting signal 
is changed frequently. 

Jumper

(Initial value)

(Initial value)

(Initial value)

ON

4 2

OFF

Voltage/current 

input switch

*5

Auxiliary 

input

Terminal 

4 input

(Current 

input)

Brake unit
(Option)

CN8

*7

Jumper

*5.  Terminal input specifications 

can be changed by analog 
input specifications 
switchover (Pr. 73, Pr. 267). 
Set the voltage/current input 
switch in the OFF position to 
select voltage input (0 to 5V/0 
to10V) and ON to select 
current input (4 to 20mA).

R

R

        *1. DC reactor (FR-HEL)

Be sure to connect the DC reactor 
supplied with the 75K or higher.
When a DC reactor is connected to 
the 55K or lower, remove the jumper 
across P1 and P/+.

*7.  A CN8 connector (for MT-BU5) is provided 

with the 75K or higher.

Sink logic

*8. Brake resistor (FR-ABR)

Remove the jumper across terminal PR-PX 
when connecting a brake resistor.
(0.4K to 7.5K)
Terminal PR is provided for the 0.4K to 22K.
Install a thermal relay to prevent an overheat 
and burnout of the brake resistor.

*9

*9.The FR-A720-0.4K and 0.75K 

are not provided with the EMC
filter ON/OFF connector. (Always on)

+

-

*11

*11. FM terminal can 

be used for pulse
train output of open 
collector output 
using Pr.291.

(+)

(-)

(0 to 10VDC)

Analog signal output

Moving-coil type
1mA full-scale

(Frequency meter, etc.)

Indicator

Calibration 
resistor *10

24VDC power supply

(Common for external power supply transistor)

Contact input common

24V

Inrush current 

limit circuit

(Refer to page 231)