EL3054 - Introduction
Fig.48: EL3054EtherCAT Terminal, 4-channel analog input, current, 4 … 20 mA, 12-bit, single-ended
The EL3054 analog input terminal processes signals in the range 4 … 20 mA. The current is digitized to a resolution of 12 bits and transmitted, electrically isolated, to the higher-level automation device. The input electronics is independent of the supply voltage of the power contacts.
The power contacts are connected through. The reference ground for the inputs is the 0 V power contact.
The error-LEDs indicate an overload condition and a wire break.
In the EL3054 with four inputs the 24 V power contact is connected to the terminal, in order to enable connection of 2-wire sensors without external supply.