Beckhoff ED2838 | EtherCAT Terminal, 8-channel digital output

The EL2838 digital output terminal connects the binary control signals

of the automation device to the actuators at process level with electrical

isolation. The EtherCAT Terminal contains eight channels, which indicate

their signal status by means of LEDs.

The integrated diagnostics can be evaluated in the controller and are

indicated by the LEDs. A diagnostic bit is set for the affected channel if

there is an overload. The diagnostics serve to simplify the maintenance

of the application. The power contacts are looped through.

The outputs of the EL2838 are supplied via the 24 V power contact.

The outputs are electrically isolated from the fieldbus side.

Special features:

• connection of different load types possible (resistive, inductive,

lamp load).

• max. output current of 2 A per channel (∑ 10 A)

• short-circuit proof outputs and reverse polarity protection

• integrated diagnostic option overload

• tool-free connection due to direct plug-in technology for solid 

conductors.

The digital EL2788 EtherCAT Terminal provides eight switches

that can be used like a relay contact for AC/DC voltages.

The electronic switch is realized through high-performance

MOSFET transistors with low on-resistance.

The switch itself is not short circuit proof, but thanks to its

high pulse current capability it can cope with current until

an external fuse is triggered. The wear resistance increases

the availability of the application. Ohmic and slightly inductive

loads can be switched up to a rated voltage of 30 V AC/DC.

Purely ohmic loads can be switched up to 48 V DC rated

voltage. High peak voltages and electromagnetic interference

pulses are prevented. The power contacts are linked.

The outputs of the EL2788 are supplied via the power contacts.

The ED2807 digital output terminal connects the binary 24 V DC

control signals from the automation device on to the actuators at

the process level with electrical isolation. The EtherCAT Terminal

has 32 channels that indicate their signal state via light emitting

diodes (status LEDs). The power contacts are looped through

internally. In the ED2807 the outputs are supplied via the 24 V

DC power contact.

The ED series EtherCAT Terminals have push-in connection technology

which makes wiring easy and tool-free.

The EL2535-xxxx output terminals are specially designed for the precise

control of single and double-coil proportional valves and proportional

solenoid valves. They regulate the output current through pulse width

modulation (PWM) of the supply voltage and are electrically isolated

from the E-bus. The current values (0 to maximum output current)

are specified by the automation device through a 16-bit value. 

The output stages are protected against overload and short circuit.