3 connecting – Baumer NE218 Benutzerhandbuch
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NE218
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27
3 Connecting
This section describes the terminal assignments followed by some
typical connections. Sections 3.1 to 3.5 contain specific instructions
and the specifications for the individual terminals. The inputs and out-
puts are assigned to plug-in screw terminals.
Terminal assignment
Control input
2
Control input
1
Signal
input
Sensor
supply
+24V 0V
P2
P1
Track A
Track B
25
24
23
22
12
11
10
9
8
7
6
5
4
3
2
1
RS485
T,R-
T,R+
RS422
RxD-
RxD+
TxD-
TxD+
max. 250 V
terminal - terminal /
- terminal
Voltage supply
Terminal assignment
Terminal
Function
1
2
3
4
5
6
7
8
9
10
11
12
Voltage supply (–)
Voltage supply (+)
Relay output P1
Relay output P1
Relay output P2
Relay output P2
Sensor supply 0 V
Sensor supply +24 V
Signal input track A
Signal input track B
Control input 1 (Main Counter Reset)
Control input 2 (Main Counter Stop)
22
23
Option RS485 T,R+
Option RS485 T,R-
22
23
24
25
Option RS422 (TxD+)
Option RS422 (TxD–)
Option RS422 (RxD+)
Option RS422 (RxD–)
For protection against shock hazards as specified in EN 61010, stran-
ded conductors may only be connected using wire end ferrules with
insulating caps. Terminals which are not assigned in the factory must
not be otherwise assigned by the user. We recommend shielding all
sensor connecting leads and earthing the shield at one end. Earthing
at both ends is recommend to avoid RF interference or if equipo-
tential bonding conductors are installed over long distances. Sensor
connecting leads should not be laid in the same trunking as the
mains power supply cable and output contact leads.