Thiết bị đầu cuối Analog EL3702 Beckhoff | Đại lý Beckhoff Việt Nam

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EtherCAT terminals EL3702 Beckhoff Vietnam

Đại lý Beckhoff tại thi trường Việt Nam

Thiết bị đầu cuối Analog EL3702 Beckhoff | Đại lý Beckhoff Việt Nam

Beckhoff Vietnam - Nhà cung cấp Module nguồn Beckhoff tại Việt Nam.

Thiết bị đầu cuối Analog EL3702 Beckhoff Vietnam

EL3702 | 2-channel analog input terminal -10…+10 V with oversampling

EtherCAT terminals EL3702 Beckhoff Vietnam

Thiết bị đầu cuối Analog EL3702 Beckhoff | Đại lý Beckhoff Việt Nam

The EL3702 analog input terminal handles signals in the range between -10 and +10 V. The voltage is digitised to a resolution of 16 bits, and is transmitted, electrically isolated, to the controller. The signals are oversampled with an adjustable, integer multiple (oversampling factor: n) of the bus cycle time (n microcycles per bus cycle). For each microcycle, the EtherCAT Terminal generates a process data block that is transferred collectively during the next bus cycle. The time base of the terminal can be synchronised precisely with other EtherCAT devices via distributed clocks. This procedure enables the temporal resolution of the analog input signals to be increased to n times the bus cycle time. In conjunction with the EL47xx (analog output terminal with oversampling), responses with equidistant time intervals, e.g. in the event of a threshold value being exceeded, become possible.

The distributed clocks function enables several EL3702 devices to be synchronised in almost any configuration. The maximum sampling rate per channel is 100 ksamples/s (100,000 samples/s).

Technical data

EL3702 | ES3702

Number of inputs

2 (differential)

Power supply

via the E-bus

Technology

differential input, oversampling

Signal voltage

-10…+10 V

Max. sampling rate

max. 10 µs/100 ksps (per channel, simultaneously)

Oversampling factor

n = 1…100 selectable (max. 100 ksamples/s)

Input signal bandwidth

0…30 kHz recommended

Distributed clocks

yes

Distributed clock precision

<< 1 µs

Internal resistance

> 200 kΩ

Input filter limit frequency

80 kHz

Common-mode voltage UCM

max. 35 V

Conversion time

~ 10 µs per sample

Resolution

16 bit (incl. sign)

Measuring error

< ±0.3 % up to 10 Hz (relative to full scale value)

Electrical isolation

500 V (E-bus/signal voltage)

Current consumption power contacts

Current consumption E-bus

typ. 200 mA

Bit width in the process image

input: n x 2 x 16 bit data; optionally 2 x 16 bit cycle counter, 4 byte StartNextLatch time

Special features

oversampling

Weight

approx. 60 g

Operating/storage temperature

-25…+60 °C/-40…+85 °C

Relative humidity

95 %, no condensation

Vibration/shock resistance

conforms to EN 60068-2-6/EN 60068-2-27

EMC immunity/emission

conforms to EN 61000-6-2/EN 61000-6-4

Protect. class/installation pos.

IP 20/variable

Pluggable wiring

for all ESxxxx terminals

Approvals/markings

CE, UL, ATEX, IECEx

Ex-Marking

II 3 G Ex nA IIC T4 Gc
Ex nA IIC T4 Gc
Ex tc IIIC T135 °C Dc

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