Mitsubishi Electronics A800 ユーザーズマニュアル



Terminal FM is provided in the FM-type inverter.



Terminal CA is provided in the CA-type inverter.



O

p

e

n

 c

o

lle

cto

r

RUN

Inverter running

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

Permissible load 24 
VDC (maximum 27 
VDC) 0.1 A
(The voltage drop is 
2.8 V at maximum 
while the signal is 
ON.)
LOW is when the 
open collector output 
transistor is ON 
(conducted).
HIGH is when the 
transistor is OFF (not 
conducted).

SU

Up to frequency

Switched to LOW when the output frequency 
is within the set frequency range 

10% (initial 

value). Switched to HIGH during acceleration/
deceleration and at a stop.

Fault code (4 bits) 
output.

OL

Overload alarm

Switched to LOW when stall prevention is 
activated by the stall prevention function. 
Switched to HIGH when stall prevention is 
canceled.

IPF

Open collector output

No function is assigned in the initial setting.
The function can be assigned setting Pr.192.

FU

Frequency detection

Switched to LOW when the inverter output 
frequency is equal to or higher than the preset 
detection frequency, and to HIGH when it is 
less than the preset detection frequency.

SE

Open collector output 
common

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

———

Pul

se FM

For meter

Outputs a selected monitored item (such as 
output frequency) among several monitored 
items. The signal is not output during an 
inverter reset.
The output signal is proportional to the 
magnitude of the corresponding monitoring 
item.
Use Pr.55, Pr.56, and Pr.866 to set full scales 
for the monitored output frequency, output 
current, and torque.

Output item:
Output frequency (initial 
setting)

Permissible load 
current 2 mA
For full scale
1440 pulses/s

NPN open
collector output

This terminal can be 
used for open collector 
outputs by setting 
Pr.291.

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

Analog

AM

Analog voltage output

Output item:
Output frequency (initial 
setting)

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

 or more) 

resolution 8 bits

CA

Analog current output

Load impedance 200 
 to 450 
Output signal 0 to 20 
mADC

RS

-485

—

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 115200 bps
Wiring length: 500 m

RS-485 t

e

rminals

TXD+

Inverter 
transmission 
terminal

The RS-485 terminals enable the communication by RS-485.
Conforming standard: EIA-485 (RS-485)
Transmission format: Multidrop link
Communication speed: 300 to 115200 bps
Overall length: 500 m

TXD-

RXD+

Inverter 
reception 
terminal

RXD-

SG

Earthing 
(grounding)

US

B

—

USB A 
connector

A connector (receptacle)
A USB memory device enables parameter copies and the trace 
function.

Interface: Conforms to USB1.1 
(USB2.0 fullspeed compatible)
Transmission speed: 12 Mbps

USB B 
connector

Mini B connector (receptacle)
Connected to a personal computer via USB to enable setting, 
monitoring, test operations of the inverter by FR Configurator2.