Baumer NE218 Manual do Utilizador descarregar pdf (Página 30)

NE218

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3.5 Connecting the sensor supply

Connect encoder supply for rotary encoder, proximity switch, etc.

to the contacts 7 and 8. However, do not use encoder supply for

unearthed inductors or capacitive loads.

The sensor supply is not short-circuit proof.

Terminal Voltage Max. permissible current

12 12...26 VDC 85 mA

13 0 V

3.6 Connecting the interfaces (Option)

The serial interface is capable of executing the following functions:

- Accessing data

- Programming parameters

Interface parameters include:

- Data transmission rate (baud rate),

- Parity bit,

- Number of stop bits

- Address used to access the tachometer from a master computer.

These interface parameters can be set on the programming level

(lines 51, 52, 53 and 54).

The following standard interface types can be connected to the

tachometer:

- RS422

- RS485

Interface characteristics

RS422 Full duplex transmission with the characteristics:

- Symmetrical

- 4 lines

- Multiple point connection - 1 transmitter and 32 receivers

- Data transmission length max. 1500 m

➜ Assign terminals 22 (TxD+), 23 (TxD-), 24 (RxD+) and 25 (RxD-)

accordingly.

RS485 Semi-duplex transmission with the characteristics:

- Symmetrical

- 2 lines

- Multiple point connection - 1 transmitter receivers (max. 32 appl.)

- Data transmission length max. 1500 m

➜ Assign terminals 22 (T,R+) and 23 (T,R–) accordingly.

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Baumer NE218 Manual do Utilizador Página 30