7647 datasheet(10/28 Pages) PHOENIX

Part #	7647

Description	Inline analog strain gauge input terminal,two precise inputs, 4, 6-wire connection method

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Manufacturer	PHOENIX [PHOENIX CONTACT]

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IB IL SGI 2/P-PAC

7647_en_04

PHOENIX CONTACT

10

8

Terminal point assignment

Figure 3

Terminal point assignment

9

Electrical isolation

Figure 4

Electrical isolation of the individual function

areas

10

Installation instructions

High current flowing through potential jumpers U

M and US

leads to a temperature rise in the potential jumpers and inside

the terminal. To keep the current flowing through the potential

jumpers of the analog terminals as low as possible, always

place the analog terminals after all the other terminals at the

end of the main circuit (for the sequence of the Inline termi-

nals: see also IL SYS INST UM E user manual).

Terminal

point

Signal

Assignment

Connector 1

1.1 / 2.1

+U

V1/GNDUv

Jumper supply U

V1

1.2 / 2.2

+U

01/-U01

Jumper voltage U

01

1.3 / 2.3

+U

d1/-Ud1

Jumper difference U

d1

1.4 / 2.4

FE

Shield connection

Connector 2

1.1 / 2.1

Tx+ / Tx-

RS-485 interface

1.2 / 2.2

GND

Tx

Reference potential of the

RS-485 interface

1.3 / 2.3

K

a1/Kb1

N/O contact for shunt cali-

bration of channel 1

1.4 / 2.4

FE

Shield connection

Connector 3

1.1 / 2.1

+U

V2/GNDUv

Jumper supply U

V2

1.2 / 2.2

+U

02/-U02

Jumper voltage U

02

1.3 / 2.3

+U

d2/-Ud2

Jumper difference U

d2

1.4 / 2.4

FE

Shield connection

Connector 4

1.1 / 2.1

-

Not used

1.2 / 2.2

-

Not used

1.3 / 2.3

K

a2/Kb2

N/O contact for shunt cali-

bration of channel 2

1.4 / 2.4

FE

Shield connection

12

1

2

3

4

1

2

3

4

12

1

2

3

4

1

2

3

4

1.1

1.2

1.3

1.4

2.1

2.2

2.3

2.4

1.1

1.2

1.3

1.4

2.1

2.2

2.3

2.4

No definition is available for the designations of

sensor cables. For this reason, the designa-

tions used in data sheets may deviate from

those used by sensor manufacturers.

Examples:

Bridge voltage U

0x = sense input US

Bridge difference U

dx = signal or output

A

B

N/O contact

Ka–Kb

Analog

inputs

Jumper

supply

Electrical isolation

between area

A and B

RS-485

Local bus (OUT)

U(7.5 VDC)

L

U

(24 VDC)

ANA

RS–485

Analog

I/O

Logic area

(microprocessor,

protocol chip,

bus interface)

Local bus (IN)

U(7.5 VDC)

L

U

(24 VDC)

ANA

FE potential

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