ABB DATUM L160 - Page 38

36
Fig. 5.6 Electrical Connections
Note. Connect earth
(ground) wire and sensor
screens to chassis earth stud.
…5 INSTALLATION
+ –
Sensor Connections
Relay 1
N/CCN/O
Relay 2
TX–
RS485
14 15 16 17 18 19 20 21 22 23 24
N/CC
N/O
Logic
Input
– +
3 4 5 6 7 8 9 10 11 12 13
TX+ C RX– RX+
Relay 3
N/CCN/O
Isig +3v 0vs–3vs
1 2
85 to 265V AC
Mains Supply
24V DC
Supply
12
or
LN
Power Connections
P851/P861 Sensor
4 14
–+
P871/P881 Sensor
21 22 23 24
Isig +3v 0vs –3vs
Make connections
via glands 1, 2 and 3
1 2 3 4
Sealed vent gland
(4) – do not use
Not used
P871/P881–
Not used
P871/P881+
Logic
output
Analog
output
P851/P861 Sensor input
+
–
–
+