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16 communication parameters – MITSUBISHI ELECTRIC FR-S520E User Manual

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2

F

UNCT

IO

NS

Communication parameters

2.16 Communication parameters

(1) Operational functions

1) Operation mode switching
[Operation mode switching method]

*1.

* When "1" is set in the communication parameter n10 "link startup mode selection",

the inverter is placed in the computer link operation mode at power on or inverter
reset. (Note that it is overridden by the Pr. 79 "operation mode selection" setting.)

You can perform communication operation from the RS-485 connector of the
inverter through RS-485.

Symbol

Switching Type

Switching Method

PU operation to external
operation

Using the

of the operation panel or the

/

of

the parameter unit (FR-PU04)

External operation to PU
operation

Using the

of the operation panel or the

/

of

the parameter unit (FR-PU04)

External operation to
computer link operation

Using the
computer program Read (H7B)/

Write (HFB)

H0000: Communication
operation
H0001: External
operation

Computer link operation to
external operation

Using the
computer program

PU operation to computer
link operation

Switching must not be made
(External operation may be selected at

and then

switched to computer link operation at

*)

Computer link operation to
PU operation

Switching must not be made
(External operation may be selected at

and then

switched to PU operation at

*)

REMARKS

Unlike the other inverters, the FR-S500 series is not the type of inverter whose operation panel

is removed to make communication.

Parameter setting using setup S/W is not enabled in the PU operation mode and external / PU

combined operation mode (Pr. 79 = 1, 3, 4). Also, pressing the

on the operation panel

starts the inverter in the external / PU combined operation mode. (Pr. 79=1, 3)

Computer

link

operation

Switching by

computer program

External

operation

PU

operation

Switching by operation panel

/parameter unit (FR-PU04)

(Switching must not be made)

C

D

E

F

B

A

A

PU

EXT

PU

EXT

B

PU

EXT

PU

EXT

C

D

E

A

C

F

D

B

RUN

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