Installation and wiring • four-gauge method, Terminals, 7 connecting the signal lines – Yokogawa DR240 User Manual

Page 70

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background image

3-25

IM DR232-01E

3

Installation and Wiring

• Four-gauge method

Jumper setup switch

DU500-12/DU500-13

DU500-14

ON

OFF

No.1
No.2

No.3

No.4
No.5

A(+)

B(L)

C(-V)

D(H)

No.1

OFF

No.2

OFF

No.3

OFF

No.4

OFF

No.5

ON

Rg1

Rg2

Rg4

Rg1

Rg2

Rg3

E

e

Rg1, Rg3

Rg2, Rg4

Rg1

Rg3

Rg1

Rg3

Rg4

Rg2

Rg1, Rg2

Rg3 Rg4

Rg3

Rg4

R = fixed resistor
r = resistance of leadwire
Rg = resistance of strain gauge
e = output voltage developed across bridge
E = voltage imposed across bridge

1

2

3

4

5

6

7

8

Rg2

Rg1

Rg3

Rg4

Wiring Pulse Input Signal Lines (Pulse Input Module)

- +

- +

Open collector
TTL open collector

Contact

CH1
CH2

CH3

CH4

CH1
CH2

CH3

CH4

Wiring Output Signal and Remote Control Signal Lines (DI/DO and Alarm modules)

Terminals

NO C NC

Failure output (transfer-contact)

REM

CHART

FAIL

ALM

1

ALM

2

NO

NO

1

3

5

7

9

11

NO

NO

C

C

C

C

C

C

C

C

C

C

NC

NC

2

4

6

8

10

12

NC

NC

Chart end output (transfer-contact)

Remote control signal input
(12 contact terminals)

Terminal arrangement

1

2

ALM output
(transfer-contact)

NO C

1

2

4

NC

3

Alarm output
(transfer contact)

Alarm output
(transfer contact)

DT200-11

DT100-11

NO C

1
2

10

Alarm
output
(make
contact)

DT200-21

3.7 Connecting the Signal Lines

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