EL4021, EL4022, EL4122 | 1-, 2-channel analog output terminals 4…20 mA, 12/16 bits

The EL4021, EL4022 and EL4122 analog output terminals generate signals in the range between 4 and 20 mA. The power is supplied to the process level with a resolution of 12 bits (EL4021/EL4022) or 16 bits (EL4122) and is electrically isolated. Ground potential for the output channels of an EtherCAT Terminal is common with the 24 V DC supply. The output stages are powered by the 24 V supply. The EL4021 is a single-channel version. The EL4022 and the EL4122 combine two channels in one housing. The signal state of the EtherCAT Terminals is indicated by light emitting diodes.

Technical data	EL4021 \| ES4021	EL4022 \| ES4022	EL4122 \| ES4122
Number of outputs	1	2	2
Power supply	24 V DC via the power contacts
Signal current	4…20 mA
Distributed clocks	yes
Load	< 350 Ω (short-circuit-proof)	< 350 Ω (short-circuit-proof)	< 500 Ω (short-circuit-proof)
Measuring error	< 0.1 % (relative to full scale value)	< 0.1 % (relative to full scale value)	±0.2 % (relative to full scale value)
Resolution	12 bits	12 bits	16 bit (incl. sign)
Electrical isolation	500 Vrms (E-bus/signal voltage)
Conversion time	~ 100 µs	~ 150 µs	~ 40 µs (fast mode ~ 25 µs)
Current consumption E-bus	180 mA (see documentation)
Bit width in the process image	1 x 16 bit AO output	2 x 16 bit AO output	2 x 16 bit AO output
Weight	approx. 60 g
Operating/storage temperature	0…+55 °C/-25…+85 °C
Relative humidity	95 %, no condensation
Vibration/shock resistance	conforms to EN 60068-2-6/EN 60068-2-27/29
EMC immunity/emission	conforms to EN 61000-6-2/EN 61000-6-4
Protect. class/installation pos.	IP 20/variable
Pluggable wiring	for all ESxxxx terminals

Product announcement

EL4021, ES4021, EL4022, ES4022, EL4122: available
ES4122: estimated market release 4th quarter 2008