Siemens simatic ET 200MP Manuel - Page 15

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Resistor circuitry of the encoders

To detect a wire break, it is necessary that enough quiescent current is flowing even when

the encoder contacts are open. Connect a resistor of 25 kΩ to 45 kΩ with 0.25 W to the

encoder contacts for this reason.

Figure 3-2

Tip: Using the potential jumpers

If you want to supply both load groups with the same potential (non-isolated), use the

potential jumpers supplied with the front connector. This helps you to avoid having to

terminate two wires to one terminal.

Proceed as follows:

1. Connect the 24 V DC supply voltage to terminals 19 and 20.

2. Insert the potential jumpers between terminals 19 and 39 (xL+) and between terminals 20

and 40 (xM).

3. Use the terminals 39 and 40 to distribute the potential to the next module

Figure 3-3

Note

Ensure that the maximum current load of 8 A per potential jumper is not exceeded.

DI 32x24VDC HF digital input module (6ES7521-1BL00-0AB0)

Manual, 09/2016, A5E03485935-AF

Resistor circuitry of the encoders

Using the potential jumpers

Wiring