Mitsubishi Electronics FR-A701 ユーザーズマニュアル

*2

Op

en

 c

o

lle

cto

r

RUN

Inverter 
running

Switched low when the inverter output frequency is equal to or 
higher than the starting frequency (initial value 0.5Hz). Switched 
high during stop or DC injection brake operation.

 

Permissible load  
24VDC (27VDC 
maximum) 0.1A
(A voltage drop is 
2.8V maximum 
when the signal is 
on.)

*1 Low is when the 

open collector 
output transistor is 
ON (conducts).
High is when the 
transistor is OFF 
(does not 
conduct).

SU

Up to 
frequency

Switched low when the output 
frequency reaches within the range of 
±10% (initial value) of the set frequency.  
Switched high during acceleration/
deceleration and at a stop.

Alarm code (4bit) 
output 

OL

Overload 
warning

Switched low when stall prevention is 
activated by the stall prevention 
function.  Switched high when stall 
prevention is cancelled. 

IPF

Instantaneous 
power failure

Switched low when an instantaneous 
power failure and under voltage 
protections are activated. 

FU

Frequency 
detection

Switched low when the inverter output 
frequency is equal to or higher than the 
preset detected frequency and high 
when less than the preset detected 
frequency. 

SE

Open collector 
output common

Common terminal for terminals RUN, SU, OL, IPF, FU

--------------------

-----

Pu

lse FM

For meter

Select one e.g. output frequency from 
monitor items. Not output during 
inverter reset.
The output signal is proportional to the 
magnitude of the corresponding 
monitoring item.
To set a full-scale value for monitoring 
the output frequency and the output 
current, set Pr. 56 and Pr.158. 

*2

Output item: 
Output frequency 
(initial setting)

Permissible load 
current 2mA
1440pulses/s at 
60Hz

NPN open 
collector output

Signals can be output 
from the open 
collector terminals by 
setting Pr. 291.

Maximum output 
pulse: 50kpulses/s
Permissible load 
current : 80mA

A

nal

og

AM

Analog signal 
output

Output item: 
Output frequency 
(initial setting)

Output signal 0 to 
10VDC
Permissible load 
current 1mA
(load impedance 
10k

Ω or more) 

Resolution 8 bit

RS-4

8

5

--------------------

 PU 
connector

With the PU connector, communication can be made through RS-485.
(for connection on a 1:1 basis only)
. Conforming standard : EIA-485 (RS-485)
. Transmission format

: Multidrop link

. Communication speed : 4800 to 38400bps
. Overall length

: 500m

RS-4

8

5 t

e

rm

in

a

ls

TXD+

Inverter 
transmission 
terminal

With the RS-485 terminals, communication can be made through RS-485.
Conforming standard

: EIA-485 (RS-485)

Transmission format

: Multidrop link

Communication speed : 300 to 38400bps
Overall length

: 500m

TXD-

RXD+

Inverter 
reception 
terminal

RXD-

SG

Earth (Ground)

USB

--------------------

USB 
connector

The FR Configurator can be used by connecting the inverter to the personal 
computer through USB.
Interface:Conforms to USB1.1
Transmission speed:12Mbps
Connector:USB B connector (B receptacle)