Mitsubishi Electric FR-A5NR Instruction Manual download pdf (Page 15)

Settings

2.2.2 Communication Settings

The VFD Setup Software uses the serial port of the personal computer to control the inverters through serial

communication. Its communication settings must be the same as those of the inverter. (The initial values of the

setup software have been matched with the factory settings of the inverter.)

When you start this software, the initial screen appears. Pressing the [OK] button displays the system setting

screen. Choosing the [Settings] → [Communication settings] command on the menu bar. The screen then shows

the following dialog box, where various communication settings can be made.

Communication settings will be described below:

(1) Screen explanations

The values in parentheses are initial values.

1) Co

mmunication Port (1)

Choose the communication port of the personal computer.

2) B

aud Rate (19200)

Set the communication speed.

3) Data L

ength (8)

Set the data bit length.

4) P

arity Check (Even)

Specify the parity bit.

5) S

top Bit (2)

Set the stop bit length.

6) D

elimiter (CR)

Specify the delimiter at the data trailer.

7) I

nterrogate Time [sec] (1)

Set the interval at which data transmission (operation mode indication and error check) is always made to

the inverter.

8) T

ime Out [msec] (1000)

Set the time from when data is transferred from the personal computer to the inverter until when the personal

computer receives a reply from the inverter. If a reply is not given after the preset time has passed, the "time-

out" error is displayed.

The above set values depend on the inverter connected. Set them after confirming the set values of the

communication function parameters of the inverter.

(2) Button settings

1) [OK] button

Recognizes the settings on the communication screen and returns to the system setting screen.

2) [Cancel] button

Cancels the communication settings and returns to the system setting screen.

3) [Re

flect Default] button

Used to omit the setting of the values specified in communication settings from the next time onward.

4) [Default R

ead] button

Used to read the default values. The value is as set with the [Reflect Default] button.

5) [Initial V

alue] button

This button is used to return the communication setting to the initial value (factory setting of the inverter).

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Mitsubishi Electric FR-A5NR Instruction Manual Page 15

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