Precautions when preparing a cable

(1)Cable length

The length of the RS-422 cable must be 500m or less.

(2)GOT side connector

For the GOT side connector, refer to the following.

1.4.1 GOT connector specifications

(3)Inverter connector specifications

(a)Pin layout in the PU port

When seen from the front of the inverter (receptacle side)

(4)Terminal block layout in the FR-A5NR computer link option

Attach this option to the A500 and F500 Series.

Terminal block

Screw size: M3

SDA SDB RDA RDB RDR SG

A B C

Terminal symbol

Connected to the GOT

(5)Terminal block layout in the FR-E7TR control terminal option

Mount the FR-E7TR to the E700 series.

Modular jack

Pin No.

Signal name

Remark

1

GND (SG)

 

 

 

 

2

(P5S)

Not used

 

 

 

3

RXD+ (RDA)

 

 

 

 

4

TXD- (SDB)

 

 

 

 

5

TXD+ (SDA)

 

 

 

 

6

RXD- (RDB)

 

 

 

 

7

GND (SG)

 

 

 

 

8

(P5S)

Not used

 

 

 

The contents inside ( ) indicate symbols described in the inverter manual.

To the GOT or the previous inverter

 

 

OPEN

Set the terminal 2/SG switch to the

 

 

right position (ON) to change the

 

 

 

terminal 2 to the terminal SG.

10

4

100

 

 

 

 

I

 

 

 

 

 

 

V

 

 

 

 

SDA SDB RDA RDB SG

2

SINK

SOURCE

 

 

 

 

O

 

 

 

 

N

 

 

SDA

SDB

RDA RDB

RUN

FU SE

 

 

FM RL RMRHMRSRESSDPCSTFSTRSDSD

A B C To the next inverter

The pins number 2 and 8 (P5S) are connected to the power supply for an operation panel or a parameter unit.

Do not use them in RS-422 communication.

(b)Connector of cable between FREQROL Series inverters

Use the commercial connectors and cables shown in the table below or the comparable products.(Refer to the manual for the inverter.)

Name

Model name

Specifications

Manufacturer

Connector

5-554720-3

RJ45 connector

Tyco International,

Ltd

 

 

 

 

 

 

 

 

 

Modular

 

 

 

HACHIKO

ceiling

BMJ-8

 

-

ELECTRIC

rosette

 

CO.,LTD.

 

 

 

(Distributor)

 

 

 

TEL(03)-3806-9171

 

 

 

 

 

 

 

 

Cable

 

 

SGLPEV

 

conforming to

MITSUBISHI

Cable

 

EIA568

CABLE

0.5mm

4P

 

(such as cable

INDUSTRIES, LTD.

 

 

 

 

 

 

10BASE-T)

 

 

 

 

 

 

Connecting terminating resistors

(1)GOT side

When connecting a PLC to the GOT, a terminating resistor must be connected to the GOT.

(a)For GT16, GT15, GT12

Set the terminating resistor setting switch.

(b)For GT14, GT11, GT10

Set the terminating resistor selector switch.

For the procedure to set the terminating resistor, refer to the following.

1.4.3 Terminating resistors of GOT

15 - 28

15. INVERTER CONNECTION

 

15.3 Connection Diagram