EL3151 – Introduction
Fig.48: EL3151EtherCAT Terminal, 1-channel analog input, current, 4 … 20 mA, 16-bit, single-ended
The EL3151 analog input terminal supplies power to measuring transducers located in the field, and to transmit analog measuring signals, electrically isolated, to the automation device.
The voltage for the sensors is supplied to the terminal via the power contacts. The power contacts can optionally be supplied with operating voltage in the standard way or via a power supply terminal (EL9xxx) with electrical isolation.
The input electronics is independent of the supply voltage of the power contacts. The reference potential for the inputs is the 0 V power contact. The EtherCAT Terminal indicates its signal state by means of LEDs. The error LEDs indicate an overload condition and wire break.