Beckhoff ELM3602-0000 | EtherCAT Terminal, 2-channel analog input

The ELM3542 and ELM3544 EtherCAT Terminals from the ELM3x4x economy

series are designed for the evaluation of measuring bridges in full bridge,

half bridge and quarter bridge configuration. With a maximum data rate of

1 ksps per channel they are ideally suited for the recording of less dynamic

procedures, such as slow oscillations and corresponding weighing procedures.

In return, they measure with extremely low noise and are temperature-

stable up to an ambient temperature of 60°C. The integrated bridge supply

can supply 1 to 12 V and, like all other parameters, is adjustable online in

the CoE at runtime.

In addition, the ELM3542 features a connection for one TEDS-IC in the sensor

per channel – this way the SG can be electronically read, detected and also

written immediately upon plugging in. Apart from that, the ELM354x have

all the features familiar from the fast ELM350x basic series, such as internally

switchable extension resistors and comprehensive sensor and function

diagnostics for industrial 24/7 operation. The 6-pin connector (push-in) is

removable for maintenance purposes without releasing the individual wires.

The ELM350x EtherCAT Terminals are designed for the evaluation of measuring

bridges in full-bridge, half-bridge and quarter bridge configuration.

The terminals feature internally switchable supplementary resistors. The feed

is integrated. Like all other parameters, the supply voltage is adjustable in the

CoE. Irrespective of the signal configuration, all ELM modules have the same

technological properties. The ELM350x modules for the evaluation of measuring

bridges offer a maximum sampling rate of 10.000 or 20.000 samples per second.

The 6-pin plug (push-in) can be removed for maintenance purposes without

releasing the individual wires.

This terminal is also available as a variant with an individual calibration certificate.

(See related products)

Extensive documentation is available from Beckhoff sales, support or

measurement@beckhoff.com.

The EL3453 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 connectionz

incl. neutral conductor current measurement.

The EL3453 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 offers the “ExtendedRange” feature enabling the use

of the full technical measuring range, which equals 130% of the

specified nominal measuring range.

In addition, the EL3453 comes with the option of transmitting the

times of the last voltage and current zero crossing to the controller

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

switching operations to suit the application.

The EL3483 EtherCAT Terminal enables the monitoring of relevant electrical

data of the supply network. The voltage is measured internally via direct

connection of L1. L2. L3 and N. The internal measured values are compared

with threshold values preset by the user. The result is available as digital

information in the process image. The EL3483 checks for the correct phase

order L1. L2. L3. phase failure, undervoltage and overvoltage, and possible

phase asymmetry. An error bit is set in the case of an incorrect phase order

or the failure of a phase. Should, for example, an asymmetry or voltage error

occur, only a warning bit is set initially. In addition, an internally calculated

mains quality factor provides information about the quality of the monitored

voltage supply. The EL3483 offers basic functionality for mains monitoring

and analysis.