Beckhoff EL1904 | EtherCAT Terminal, 4-channel digital input, 24 V DC, TwinSAFE

The EL1904 TwinSAFE component is a digital input terminal for sensors

with potential-free contacts for 24 V DC. It has four fail-safe inputs.

The signals are transmitted via FSoE to a TwinSAFE Logic-capable

component and can be used there to evaluate them in terms of safety.

The EL1904 has safety parameters to adapt the functionality specifically

to the respective safety-oriented requirements (e.g., 1 channel evaluation

vs. 2-channel evaluation, testing of the individual channels).

The safety parameters are not stored directly on the component, but are

transmitted to the input terminal via a TwinSAFE Logic capable component

when the safety application is started. This simplifies service procedures,

because the component can simply be replaced. The safety-relevant

parameters are transferred to the new component when the safety

application is restarted.

The EL1489 digital input terminal acquires the binary 24 V control

signals from the process level and transmits them, in an electrically

isolated form, to the higher-level automation unit.

The EtherCAT Terminal has 16 channels, whose signal states are

indicated by LEDs. The power contacts are connected through.

With the EL1489, the reference ground for all inputs is the 24 V

power contact.

The EL1862-0010 digital input terminal offers 16 channels in a very

compact design. A 20-pin contact strip enables the secure connection

of plug connectors using insulation displacement contact, as is usual

for ribbon cables and special round cables. This significantly simplifies

the wiring of many channels. The signal states of the channels are

indicated by LEDs. The power contacts are connected through.

The digital EL1852 EtherCAT Terminal combines eight digital inputs

and eight digital outputs on a single device. The signal state of

the channels is indicated by LEDs. The EL1852 offers a high packing

density with 16 channels. A 20-pin contact strip enables the secure

connection of plug connectors using insulation displacement contact,

as is usual for ribbon cables and special round cables.

This significantly simplifies the wiring of many channels.

Special features:

• compact design through the combination of inputs and outputs in

one terminal

• no bouncing due to mechanical switches thanks to 3 ms input filter

• short-circuit proof outputs protected against reverse polarity with

output current up to 0.5 A

• direct connection of connectors with insulation displacement

contacts

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