Siemens LU01 Manuel D’Utilisation

7ML19985BE02

SITRANS LU01 – INSTRUCTION MANUAL

Page 11

Before interconnecting system components to the SITRANS LU01 terminals, verify all 
components have been installed in accordance with the associated product instruction 
manuals. 

Connect all associated equipment cable shields to the SITRANS LU01 shield connections. 
To avoid differential ground potentials, do not connect cable shields to ground (earth) 
elsewhere. Insulate or tape cable shields at all shield junctions to prevent ground loops.

•All field wiring must have insulation suitable for at least 250V.
•Hazardous voltage present on transducer terminals during operation
•Relay contact terminals are for use with equipment having no accessible 
live parts and wiring having insulation suitable for at least 250V.

115V

200V

POSITION SW1 FOR
100/115/200/230
OPERATION

1

2

3

8

9

10

11

12

13 14 15

26

27 28

29

30 31

32

33

35

36

37

L2/N L1

BIPOLAR CURRENT LOOP

RS-232

RX

1

2

1

2

SY

N

C

34

4

5

6

7

16

17

18

19 20

21 22

23

24

25

1

2

3

4

RELAYS

-

+

RELAYS SHOWN IN
DE-ENERGIZED POSITION
250      
SEE INSTRUCTION BOOK
FOR COMPLETE RATING

1

2

OFF

100V

!

V

5AMP

V

!

RJ-11 

RS-232

RS-485

BIPOLAR

TERM INATIO N

RS-485

SH

LD

SH

L

D

TX

TX

RX

SH

L

D

SH

L

D

SH

L

D

SH

L

D

CO

M

CO

M

B

A

TB1

-

+

mA

OUTPUTS

NORM

TRIP

BL

K

WH

T

/S

H

L

D

1

2

BL

K

WH

T

/S

H

L

D

2

1

SW1

S1

[ 50/60 HZ  31VA ]

TP 6

TP 5

U31

TP4

G ND

SCO PE

SYN C

BL

K

WH

T

/S

H

L

D

BL

K

W

H

T/

S

H

LD

display

voltage

select

EPROM

board A

optional

SmartLinx

module

scope

connections

communication

mode LED

NORM/TRIP

switch

terminal block

board B

RJ-11 port