Beckhoff ELM3704-1001 | EtherCAT Terminal, 4-channel analog input, multi-function

The ELM360x EtherCAT Terminals are designed for the evaluation of IEPE

sensors (Integrated Electronics Piezo-Electric), which are mainly used for

vibration diagnostics and acoustics. The constant current feed can be set

to 0/2/4 mA. The input characteristics are also flexibly adjustable from

DC to 10 Hz in the CoE. The ELM360x basically measures voltages AC/DC

and in addition, the internal scaler function can be used if, for example,

an output in acceleration [m/s²] is desired. In voltage measurement mode

12 different measurement ranges from ±20 mV to ±10 V and 0 to 20 V

are adjustable.

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

technological properties. The ELM360x modules for IEPE evaluation offer

a maximum sampling rate of 20.000 or 50.000 samples per second. IEPE

sensors are often connected via coaxial cables, therefore the ELM360x-0002

feature a BNC connector. The 2-pin version with push-in (ELM360x-0000)

on the other hand is ideal for industrial use where a plug is unplugged

less frequently for maintenance purposes and fast wiring is much more

important.

Available on request as variant with factory calibration certificate or ISO

17025-/DAkkS-compliant certificate including Beckhoff recalibration service.

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.

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.