Beckhoff EL3443-0011 | EtherCAT Terminal, 3-channel analog input, power measurement

The EL3443-0011 EtherCAT Terminal enables the measurement

of all relevant electrical data of the supply network and carries

out simple pre-evaluation. The voltage is measured via 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 EL3443-0011 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 φ and harmonic are available. The EL3443-0011

offers extended functionality for mains analysis and energy 

management.

In addition, the EL3443-0011 comes with the option of transmitting

the time of the last voltage zero crossing to the controller via XFC

technology. This can be used, for example, to carry out switching

operations to suit the application.

The 100 mA current interface is particularly well suited for active

transformers and thus also for applications with high DC currents.