EL5072 - Connection

EL5072 - Connection 1:
EL5072

Terminal point

No.

Comment

DI+ Ch 1

1

+ digital input 24 VDC channel 1

DI- Ch 1

9

- digital input channel 1

Usens+ Ch 1

2

+ input reference voltage channel 1

Usens- Ch 1

10

- input reference voltage channel 1

Usig+ Ch 1

3

+ input measuring voltage channel 1

Usig- Ch 1

11

- input measuring voltage channel 1

Uexc+ Ch 1

4

+ input excitation voltage channel 1

Uexc- Ch 1

12

- input excitation voltage channel 1

Uexc+ Ch 2

5

+ input excitation voltage channel 2

Uexc- Ch 2

13

- input excitation voltage channel 2

Usig+ Ch 2

6

+ input measuring voltage channel 2

Usig- Ch 2

14

- input measuring voltage channel 2

Usens+ Ch 2

7

+ input reference voltage channel 2

Usens- Ch 2

15

- input reference voltage channel 2

DI+ Ch 2

8

+ digital input 24 VDC channel 2

DI- Ch 2

16

- digital input channel 2

EL5072 - Connection 2:

Automatic switching of the bridges

All necessary bridges are automatically switched in the terminal. The user therefore only has to connect the lines shown in the following diagrams and make the corresponding settings in the CoE configuration data (index 0x80n1:12 "Connection type").

Note

Setting and activating the excitation frequency and excitation voltage

  • Check the supply to the power contacts (see chapter EL5072 – Diagnostics).
  • Set the excitation frequency index 0x8001:14 "Excitation frequency" and excitation voltage index 0x8001:15 "Excitation voltage" centrally via the first channel. These settings are then valid for both channels.
  • Before switching, make sure that both sensors support the set range!
  • The excitation voltage is switched off in the delivery state and must be switched on by setting index 0x8000:08 "Enable excitation" to TRUE.

Note

Wiring the digital input

To ensure correct function of the digital input, in addition to the 24 V signal at connection point 1 for DI+ Ch1 or connection point 8 for DI+ Ch2, the corresponding ground connection must also be connected to connection point 10 for DI- Ch1 or connection point 16 for DI- Ch2.

Further Information