Beckhoff EL2521 | EtherCAT Terminal, 1-channel pulse train output, incr. enc. simulation, RS422, 50 mA

The EL2502-0010 output terminal modulates the pulse width of a binary

signal, and outputs it electrically isolated from the E-bus.

The mark/space ratio is preset by a 16-bit value from the automation device.

The output stage is protected against overload and

short-circuit. The EtherCAT Terminal contains two channels whose signal

state is indicated by LEDs. The LEDs are driven in time with

the outputs, and show the duty factor by their brightness.

The EL2502-0010 supports EtherCAT distributed clock timestamps in

order to influence switching on, off and over of a PWM signal with

microsecond precision.

Special features:

• PWM output with push-pull output stage

• max. output current 0.5 A per channel

• separate frequency adjustable for each channel

• synchronized operation through distributed clocks XFC technology possible

• support of XFC technology timestamp

The EL2212 digital output terminal connects the binary control signals

from the automation device on to the actuators at the process level

with electrical isolation. The multi-timestamp features allow each

EtherCAT cycle to capture as many events per channel as were

preloaded in the internal buffer.

The EL2212 supports the particularly fast switching of inductive loads,

such as valves or relays. 24 to 72 V DC supplies are connected to the

power contacts and passed through to the load when switched on.

After an adjustable waiting period the terminal begins to control

channel-wise the current in order to protect the load.

The switching process can be positioned exactly using the timestamp.

The switch-off process is also accelerated considerably by the pole 

reversal of the voltage. The two channels are independently controllable.

The EL2202/EL2202-0100 digital output terminal connects the

binary control signals from the automation device on to the

actuators at the process level with electrical isolation.

This terminal benefits from very small output delay and is therefore

suitable for signals requiring particularly fast output.

The EtherCAT Terminal has a push-pull output that can be actively

switched to 24 V, 0 V or high-impedance.

The EL2202-0100 contains two channels. LEDs indicate the signal

state of each channel.

Unlike the EL2202. the EL2202-0100 already has distributed clocks

(DC) support enabled, i.e. the output data can be monitored

synchronously with other data from terminals with distributed clock

support. The system-wide DC accuracy is << 1 μs. The activation or

deactivation of the distributed clocks support can also be done by

the user on the EL2202 (see documentation), on the EL2202-0100

it is included ex works.

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