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Beckhoff EL1252 EtherCAT 2-channel Digital Input Terminal with Timestamp

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Beckhoff EL1252 EtherCAT 2-channel Digital Input Terminal with Timestamp

The EL1252 digital input terminal is a controller with EtherCAT Terminals I/O systems, two channels, 24 V DC, 1 µs, with timestamp. It is widely used in Homag machines.

With this XFC technology, signal characteristics can be traced exactly in time and correlated with the distributed clocks system-wide.

Special features:
suitable for particularly fast signals due to very low input delay
synchronized operation through distributed clocks XFC technology possible
support of XFC technology timestamp

Technical data for EL1252:

Technical data	EL1252
Connection technology	4-wire
Specification	similar to EN 61131-2, type 3, “0”: -3…5 V DC, “1”: 11…30 V DC, typ. 3 mA input current
Number of inputs	2
Nominal voltage	24 V DC (-15 %/+20 %)
“0” signal voltage	-3…+5 V (similar to EN 61131-2, type 3)
“1” signal voltage	11…30 V (similar to EN 61131-2, type 3)
Input current	typ. 3 mA (similar to EN 61131-2, type 3)
Input filter	typ. < 1 µs
Resolution timestamp	1 ns
Precision of timestamp in the terminal	10 ns (+ input delay)
Distributed clock precision	<< 1 µs
Input delay TON/TOFF	< 1 µs
Distributed clocks	yes
Time resolution signal	1 ns
Current consumption power contacts	typ. 6 mA + load
Current consumption E-bus	typ. 110 mA
Electrical isolation	500 V (E-bus/field potential)
Bit width in the process image	2 x input + 2 x 16 byte timestamp
Configuration	no address or configuration setting
Special features	timestamping, latch last edge
Weight	approx. 55 g
Operating/storage temperature	-25…+60 °C/-40…+85 °C
Relative humidity	95 %, no condensation
Vibration/shock resistance	conforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emission	conforms to EN 61000-6-2/EN 61000-6-4
Protect. rating/installation pos.	IP20/variable
Pluggable wiring	for all ESxxxx terminals
Approvals/markings	CE, UL, ATEX
Ex marking	II 3 G Ex nA IIC T4 Gc