Sensor LDU 68 Series, Manual

Page: 39 / 40

Page 38 LDU 68 Series Manual
Ideas in Measuring ..
TECHNIQUES LIMITED
9 UNIT ADAPTOR CONNECTION DETAIL
With UA77.1 (Unit Adaptor with built-in RS422 to RS232 Converter)
External Connections
9.1 UA77.1 Unit Adaptor with built-in RS422 to RS232 converter
R1
R2
P2
P1
Span Adj.
Made in EU
Zero Adj.
R3
R4
Made in EU
F1
Buss
400mA
R2
P2 Span Adj.
R1 P1
Zero Adj.
R3
R4
Exc 6
7
Gnd
Gnd
Gnd
9
Pwr
Out
In
Out
In
Tx
Tx
Rx
Rx +
+
0
1
-
-
0
1
8
Sen 5
Inp 4
Inp 3
Sen 2
Exc 1
0
16
17
19
18
15
14
13
12
11
10
+
+
+
-
-
-
I I I
Load Cell Digitising Unit
LDU 68.1
Cert.no. DK0199 - R76 - 10.04
n
max
= 10000
-15°C/+55°C
CE
D min = 1.0 m V/VSI
NC
NC
TECHNIQUES LIMITED
www.sensortechniques.com
Tx
GND
Rx
GND
+12 - 24V
Gnd
From Computer or PLC
LOGIC I/O
Function
UA 77.1 Terminal Pin No. LDU 68.x
Common Ground (Load cell cable shield)
Gnd (Shield)
0
Positive Load cell excitation voltage
+ Exc (to load cell)
1
Positive Load cell sense voltage + Sen
2
Positive Load cell signal voltage + Inp (to LDU)
3
Negative Load cell signal voltage - Inp (to LDU)
4
Negative Load cell sense voltage - Sen
5
Negative Load cell excitation voltage - Exc (to load cell)
6
Common Ground (Load cell cable shield)
Gnd
7
Not Connected
8
Not Connected
9
Receive Data RS232 RxD (RS232)
10
RS232 Common Ground
Gnd (RS232)
11
RS232 Common Ground Gnd (RS232)
12
Transmit Data RS232 TxD (RS232)
13
Logic Input 0 (relative to common ground) 0 In
14
Logic Output 0 (relative to common ground)
0 Out
15
Logic Input 1 (relative to common ground) 1 In
16
Logic Output 1 (relative to common ground) 1 Out
17
Power Supply 12-24 V DC + PWR
18
Common Ground
Gnd
19
Issue 1h
Ideas in Measuring ..
TECHNIQUES LIMITED
Page 39 LDU 68 Series Manual
With UA73.2 (Standard Unit Adaptor)
R1
R2
P2
P1
Span Adj.
Made in EU
Zero Adj.
R3
R4
Made in EU
F1
Buss
400mA
R2
P2 Span Adj.
R1 P1
Zero Adj.
R3
R4
Exc 6
7
Gnd
Gnd
Gnd
9
Pwr
Out
In
Out
In
Tx
Tx
Rx
Rx +
+
0
1
-
-
0
1
8
Sen 5
Inp 4
Inp 3
Sen 2
Exc 1
0
16
17
19
18
15
14
13
12
11
10
+
+
+
-
-
-
I I I
Load Cell Digitising Unit
LDU 68.1
Cert.no. DK0199 - R76 - 10.04
n
max
= 10000
-15°C/+55°C
CE
D
min = 1.0
m
V/VSI
NC
NC
TECHNIQUES LIMITED
www.sensortechniques.com
Tx+
Tx-
Rx+
Rx-
Signal
Gnd
+12 - 24V
Gnd
External Connections
Function
UA 73.2 Terminal Pin No. LDU 68.x
Common Ground (Load cell cable shield)
Gnd (Shield)
0
Positive Load cell excitation voltage + Exc (to load cell)
1
Positive Load cell sense voltage + Sen
2
Positive Load cell signal voltage
+ Inp (to LDU)
3
Negative Load cell signal voltage
- Inp (to LDU))
4
Negative Load cell sense voltage
- Sen
5
Negative Load cell excitation voltage - Exc (to load cell)
6
Common Ground (Load cell cable shield) Gnd
7
Not Connected
8
Not Connected
9
Receive Data + +Rx (RS422)
10
Receive Data - -Rx (RS422)
11
Transmit Data +
+Tx (RS422)
12
Transmit Data - -Tx (RS422)
13
Logic Input 0 (relative to common ground) 0 In
14
Logic Output 0 (relative to common ground) 0 Out
15
Logic Input 1 (relative to common ground)
1 In
16
Logic Output 1 (relative to common ground) 1 Out
17
Power Supply 12-24 V DC + PWR
18
Common Ground Gnd
19
9.2 UA73.2 Standard Unit Adaptor
LOGIC I/O
Issue 1h