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You can connect proximity switches (contacts, two–wire BERO proximity
limit switches) to the inputs on the terminal block (see Figure 9-14).
Figure 9-14Assignment Diagram for the Terminal Block
ET 200U Distributed I/O Station
EWA 4NEB 812 6087–02b
1
3
5
2
4
6
Terminal
Terminal Assignment
1
24 V DC Supply for the Module
2
Ground
3
24 V DC Supply for Enable Signal
4
DI Enable Signal
5
DQ 24 V / 0.5 A Setpoint 1 (Q0)
6
Ground
7
24 V DC Supply for Reference Signal
8
DI Reference Signal
9
DQ 24 V / 0.5 A Setpoint 2 (Q1)
10
Ground
Assignment of Inputs on the Terminal Block
You can connect two–wire BERO proximity limit switches to the refer-
ence input. The enable input can also be driven by a 24 V DC digital out-
put module.
Outputs on the Terminal Block
There are two short–circuit protected 24 V DC digital outputs on the ter-
minal block.
Short–Circuit Indication
The red LED on the front panel indicates a shorted output.
Function Modules
7
9
1
3
5
7
9
8
10
2
4
6
8
10
9-25
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