Flintec LDU 68.2 - Manual (Page 10)

LDU 68.
5.4. T
LDU 68
Pin no
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Remarks:
 UA 73
Valid
 UA 77
5.5. L
The load ce
cells. The i
The sense
chapter 5.1
Flintec loa
.1 & 68.2 Tech
erminal
8.x
UA
o.
Gnd (Sh
+Exc
+ Sens
+ Sig
– Sig
– Sen
– Exc
Gnd
NC
NC
+ Rx
- Rx
- Tx
+ Tx
0 In
0 out
1 In
1 Out
+ PWR
Gnd
3.2 (see chap
for half-dupl
7.1 with integ
oad Cell
ell wiring sho
nput resistan
pins of the in
1) have to be
ad cell; 4 wire
hnical Manual
Configu
A 73.2
hield)
pter 5.3) is p
ex operation
grated RS42
Connec
ould be made
nce of the loa
nstrument sh
e short circuit
e connection
, Rev. 12 Jan
ration
UA 77.
Gnd (Shield)
+ Exc
+ Sens
+ Sig
– Sig
– Sen
– Exc
Gnd
NC
NC
RxD (RS232
Gnd (RS232
Gnd (RS232
TxD (RS232)
0 In
0 out
1 In
1 Out
+ PWR
Gnd
prepared for f
n: pin no. 10 +
2/RS232 con
ction
e carefully be
ad cells that
hould be con
ted.
nuary 2010
.1
) Com
+ Ex
+ Se
+ Si
– Si
– Se
– Ex
Sign
Not
Not
2) Rec
) UA 7
) UA 7
) Tran
Digi
Digi
Digi
Digi
Pow
Com
full-duplex o
+ 13 = A an
nverter (see
efore energiz
you want to
nnected. In 4-
Flin
mmon Ground
xcitation for lo
ense for load
gnal
gnal
ense for load
xcitation for lo
nal ground / 0
connected
connected
ceive
73.2: Receive
77.1: Senden
nsmit
tal input 0 (w
tal output 0 (w
tal input 1 (w
tal output 1 (w
wer supply 12
mmon ground
peration
d pin no. 11
chapter 5.2)
zing to avoid
connect sho
-wire installa
ntec load cel
Functio
d
oad cell
cell
cell
oad cell
0 V DC
e / UA 77.1: C
n / UA 77.1: C
ith reference
with reference
ith reference
with reference
...24 V DC
/ 0 V DC
+ 12 = B
damages to
ould be more
ations the sw
l; 6 wire conn
on
Common grou
Common grou
to ground)
e to ground)
to ground)
e to ground)
o the amplifie
e than 250 Ω.
witches SW1
nection
Page 10 of
und RS232
und RS232
er and the loa
.
and SW2 (se
f 28
ad
ee