Product Name: BECKHOFF EL3021 1-Channel Analog Input Terminal Product Brand: BECKHOFF Product Code: EL3021 Product Artikel: BECKHOFF EL3021 1-Channel Analog Input Terminal
The EL3021 analog input terminal processes signals in the range between 4 and 20 mA. The current is digitised to a resolution of 12 bits and is transmitted, electrically isolated, to the higher-level automation device. The input channels of the EtherCAT Terminal have differential inputs and possess a common, internal ground potential. The EL3021 is the single-channel version and is characterised by its fine granularity and electrical isolation. An open lead or overload condition are detected. The terminal status is relayed to the controller via the E-bus. The EtherCAT Terminal indicates its signal state by means of light emitting diodes. The error LEDs indicate an overload condition and a broken wire. Technical data EL3021 | ES3021 Number of inputs 1 (differential) Power supply via the E-bus Technology differential input Signal current 4…20 mA Distributed clocks – Internal resistance typ. 85 Ω + diode voltage Input filter limit frequency 1 kHz Common-mode voltage U CM max. 10 V Conversion time 0.625 ms default setting, configurable, multiplex Resolution 12 bit (16 bit presentation incl. sign) Measuring error < ±0.3 % (relative to full scale value) Surge voltage resistance max. 35 V Electrical isolation 500 V (E-bus/signal voltage) Current consumption power contacts – Current consumption E-bus typ. 130 mA Bit width in the process image inputs: 4 byte Special features standard and compact process image, activatable FIR/IIR filters, limit value monitoring 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. class/installation pos. IP 20/variable Pluggable wiring for all ESxxxx terminals Approvals/markings CE, UL, ATEX Ex-Marking II 3 G Ex nA IIC T4 Gc
