Beckhoff ED5112 | EtherCAT Terminal, 2-channel encoder interface, incremental

The ED5112 EtherCAT Terminal is an interface for the direct connection of

two incremental encoders with A and B tracks or one encoder with A, B,

and C tracks. Encoders with differential signals (RS422) or single-ended

signals (TTL and open collector) can be connected, and input frequencies

up to 5 MHz can be evaluated.

In 2-channel mode, one 24 V DC digital input is available per channel for

saving, locking, or setting the counter value. Both inputs can be used in

1-channel mode. Furthermore, the counter value can also be set directly

to a specified value via the process data, or the counter can be locked.

The encoders can be supplied with 5 V, 12 V, or 24 V DC directly via the

connection points of the terminal.

Special features:

• can be used as 1 x ABC or 2 x AB incremental encoder interface

• save, lock, set counters

• integrated frequency and period measurement

• can optionally be used as a 5 V up/down counter

• microincrements

• synchronous reading of the position value via distributed clocks

• timestamp on the last registered incremental edge and the latch value

via the 24 V digital inputs

The ED5112 enables the measurement of period, frequency, or speed with

a resolution of 10 ns. In 1-channel mode, a duty cycle measurement of the

input signal is also implemented.

Due to the optional interpolating microincrements functionality, the ED5112

delivers particularly precise position values even with dynamic axes.

It supports the synchronous reading of the encoder value together with

other input data in the EtherCAT system via high precision EtherCAT Distributed

Clocks (DC). In addition, timestamps are available for the last registered

incremental edge, the edge at the latch input, and the zero pulse track C.

The use of encoder profiles enables simple and fast linking of the process data

into motion control applications.

The ED series EtherCAT Terminals have push-in connection technology which

makes wiring easy and tool-free.