EL3xxx | Analog input

The EL3001 analog input terminal processes signals in the range between -10 and +10В V. The voltage is digitized to a resolution of 12В bits, and is transmitted, electrically isolated, to the higher-level automation device. The input channels of the EtherCAT Terminal are single-ended inputs with a common, internal ground potential. The EL3001 is characterized by its fine granularity and electrical isolation. The signal state of the EtherCAT Terminals is indicated by light emitting diodes.

The EL3044 analog input terminal processes signals in the range between 0В and 20В mA. The current is digitized to a resolution of 12В bits and is transmitted (electrically isolated) to the higher-level automation device. The EL3044 EtherCAT Terminal features 2-wire conductors for the four single-ended inputs with a common internal ground potential. The power contacts are connected through. The signal state of the EtherCAT Terminal is indicated by light emitting diodes.

The job of the EL3052 analog input terminal is to supply power to measuring transducers located in the field and to transmit analog measurement signals with electrical isolation to the automation device. The voltage for the sensors is supplied to the terminals via the power contacts. The power contacts can optionally be supplied with operating voltage in the standard way or via a supply terminal (EL9xxx) with electrical isolation. The input electronics are independent of the supply voltage of the power contacts. The reference potential for the inputs is the 0В V power contact. The EtherCAT Terminal indicates its signal state by means of light emitting diodes. The error LEDs indicate an overload condition and a broken wire.

The EL3111 analog input terminal processes signals in the range between 0В and 20В mA. The current is digitized to a resolution of 16В 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 EL3111 is the single-channel version and is characterized by its fine granularity and electrical isolation. Overload condition is detected, and 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.

The EL3122 analog input terminal processes signals in the range between 4В and 20В mA. The current is digitized to a resolution of 16В 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 EL3122 combines two channels in one housing. 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.

The EL3161 analog input terminal processes signals in the range between 0В and 10В V. The voltage is digitized to a resolution of 16В bits, and is transmitted, electrically isolated, to the higher-level automation device. The input channels of the EtherCAT Terminal have the reference ground as common ground potential. The signal state of the EtherCAT Terminal is indicated by light emitting diodes.

The EL3174-0030 analog input terminal has four individually parameterizable inputs. Signals in the range from -10/0 to +10В V or -20/0/+4 to +20В mA can be processed via each channel. Physically, the voltage and current signals should be connected to different terminal points. Each channel should then be set by the controller/TwinCAT to U or I mode via CoE. The voltage inputs operate differentially, the current inputs are single-ended. All inputs are digitized with a resolution of 16В bits and transmitted, electrically isolated, to the higher-level automation device. With a technical measuring range of В±107% of the nominal range, the terminal also supports commissioning with sensor values in the limit range and diagnostics according to NAMURВ NE43.

The EL3174 analog input terminal has four individually parameterizable inputs. Signals in the range from -10/0 to +10В V or -20/0/+4 to +20В mA can be processed via each channel. Physically, the voltage and current signals should be connected to different terminal points. Each channel should then be set by the controller/TwinCAT to U or I mode via CoE. The voltage inputs operate differentially, the current inputs are single-ended. All inputs are digitized with a resolution of 16В bits and transmitted, electrically isolated, to the higher-level automation device. With a technical measuring range of В±107% of the nominal range, the terminal also supports commissioning with sensor values in the limit range and diagnostics according to NAMURВ NE43.

The EL3311 analog input terminal allows thermocouples to be connected directly. The EtherCAT Terminal’s circuit can operate thermocouple sensors using the 2-wire technique. Linearization over the full temperature range is realized with the aid of a microprocessor. The temperature range can be selected freely. The error LEDs indicate a broken wire. Compensation for the cold junction is made through an internal temperature measurement at the terminal. The EL3311 can also be used for mV measurement.

The EL3351 analog input terminal permits direct connection of a resistor bridge. The bridge voltage, UD, and the supply voltage, UREF, to the bridge are digitized with a 16В bit resolution, and are transmitted along an electrically isolated channel to the supervising automation system. The input channels are available in the form of two 16В bit values for further processing. The resulting measurement can be calculated from the formula: measurement = UD/UREF. Precise acquisition of the supply voltage along with the bridge voltage compensates for long-term and temperature drift.

The EL3403 EtherCAT Terminal enables the measurement of all relevant electrical data of the supply network. The voltage is measured via the direct connection of L1, L2, L3 and N. The current of the three phases L1, L2 and L3 is fed via simple current transformers. All measured currents and voltages are available as root-mean-square values. In the EL3403 version, the effective power and the energy consumption for each phase are calculated. The root-mean-square value of voltage U, current I and the effective power P, apparent power S, reactive power Q, frequency F and phase shift angle cos П† can be derived. The EL3403 provides a comprehensive network analysis and an energy management option.

The EL3403 EtherCAT Terminal enables the measurement of all relevant electrical data of the supply network. The voltage is measured via the direct connection of L1, L2, L3 and N. The current of the three phases L1, L2 and L3 is fed via simple current transformers. All measured currents and voltages are available as root-mean-square values. In the EL3403 version, the effective power and the energy consumption for each phase are calculated. The root-mean-square value of voltage U, current I and the effective power P, apparent power S, reactive power Q, frequency F and phase shift angle cos П† can be derived. The EL3403 provides a comprehensive network analysis and an energy management option.

The EL3446 EtherCAT Terminal enables the measurement of all relevant electrical data of the supply network and carries out simple pre-evaluation. Since the EL3446 itself has no voltage inputs, the voltage measured values are transmitted via EtherCAT by an EL3443 to be installed once per network. The current of up to six phases is fed via simple current transformers. All measured currents and voltages are available as root-mean-square values. In the EL3446 terminal, the effective power and energy consumption for each phase are calculated. The RMS values of voltage U and current I as well as the active power P, apparent power S, reactive power Q, frequency f, phase shift angle cos П† and harmonic are available. The EL3446 offers extended functionality for mains analysis and energy management.

The EL3453-0090 EtherCAT power measurement terminal has voltage inputs for direct monitoring of high-capacity generators up to max. 690 V AC, as is common in the wind industry, for example. No upstream voltage transformer is required. The four current inputs are electrically isolated so that the terminal can be used in all common grounded current transformer configurations such as 2- or 3-transformer configurations with star or delta connection incl. neutral conductor current measurement. The EL3453-0090 can be used for simple grid analysis up to the 63rd harmonics analysis. Alternatively, all readings can be combined in a power quality factor for simplified diagnostics. Like all measured terminal data, the harmonic content can be read via the process data. The EL3453-0090 offers the “ExtendedRange” feature enabling the use of the full technical measuring range, which equals 130% of the specified nominal measuring range.