ELM360x - Technical data

Analog inputs

2 channel (single-ended)

4 channel (single-ended)

Time relation between channels to each other

Simultaneous conversion of all channels in the terminal, synchronous conversion between terminals, if DistributedClocks will be used

ADC conversion method

ΔΣ (Delta-Sigma) with internal sample rate

8 Msps

5.12 Msps

Cutoff frequency input filter hardware
(see explanations in chapter
Firmware filter concept)

Before AD converter:
hardware low pass -3 dB @ 30 kHz
type butterworth 3th order

Within ADC after conversion:

Low pass
-3 dB @ 13.6 kHz, ramp-up time 60 µs

Low pass
-3 dB @ 5.3 kHz, ramp-up time 150 µs

Type sinc3/average filter

The ramp-up time/ settling time/ delay caused by the filtering will be considered within the DistributedClocks-Timestamp.

Resolution

24 bit (including sign)

Connection technology

2‑wire

Sampling rate (per channel, simultaneous)

20 µs/50 ksps

50 µs/20 ksps

Free down sampling by Firmware via decimation factor

Oversampling

1…100 selectable

Supported EtherCAT cycle time

(depending on the operation mode)

DistributedClocks: min. 100 µs, max. 10 ms

FrameTriggered/Synchron: min. 200 µs, max. 100 ms

FreeRun: not yet supported

Operation range IEPE

Measuring ranges ±20/40/80/160/320/640 mV, ±1.25/2.5/5/10 V adjustable,

Current supply/ I_EXCITE (IEPE Bias Current) 0/2/4 mA,

Acquisition of the modulated alternating voltage,

AC/DC coupling (parameterizable high pass),

2-wire-connection

Operation range voltage measurement

±10/5/2.5/1.25 V, ±640/320/160/80/40/20 mV, 0…10/20 V ¹⁾

2-wire-connection

Connection diagnosis

Wire break/short cut

Internal analog ground AGND

Existing by external connection to -Uv

Overvoltage protection of the inputs related on ‑Uv (internal ground)

+Input1: at > +24 V and < -8 V respectively

Internal power supply

via E-bus

Current consumption E-bus

typ. 460 mA

typ. 650 mA

Current consumption power contacts

-

Thermal power dissipation

typ. 3 W

Dielectric strength - destruction limit

Max. permitted short-term/continuous voltage

Voltage between each contact point ±I1, ±I2, +Uv and –Uv: non-supplied ±40 V, supplied ±36 V

Voltage between every contact point and SGND (shield, mounting rail): ±36 V

Note: -Uv corresponds to internal AGND

Recommended operation voltage range to compliance with specification

Max. permitted voltage during specified normal operation

±I1 and ±I2: typ. ±10 V against –Uv,

for ELM360x: related to GND: -5...+21.5 V

Note: -Uv corresponds to internal AGND

Distributed Clocks

Yes, with Oversampling n = 1…100, accuracy << 1 μs

Special features

Extended Range 107 %, freely configurable numeric filters, TrueRMS, integrator/differentiator, non-linear scaling, PeakHold

Functional diagnosis ¹⁾

Yes

Electrical isolation channel/channel ²⁾

no

Electrical isolation channel/E-Bus ²⁾

Functional insulation, 707 V DC (type test)

Electrical isolation channel/SGND ²⁾

Functional insulation, 707 V DC (type test)

Configuration

via the EtherCAT Master, e.g. TwinCAT

Note to cable length

Signal cable lengths to the sensor / encoder over 3 m must be shielded, the shield design must be in line with the state of the art and be effective. For larger cable lengths > 30 m, a suitable surge protection should be provided if appropriate interference could affect the signal cable.

Connection type

Variant ELM360x-0000: 2-pin push-in cageclamp, service plug

Variant ELM360x-0002: BNC, shielded

Note: shield is the analog ground, electrically isolated from housing

Dimensions (W x H x D)

See chapter Housing

Mounting

on 35 mm rail conforms to EN 60715

Note Mounting

Plug partly not within scope of delivery, see chapter

Notes on connection technology

Weight

Approx. 350 g

Permissible ambient temperature range during operation

-25…+60 °C

Permissible ambient temperature range during storage

-40…+85 °C

Permissible operating altitude range

0 up to 2000 m (derating at higher altitudes on request)

Relative humidity

max. 95%, no condensation

Protection class

IP 20

Vibration-/shock resistance

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

EMC-resistance / emission

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

Approvals/ markings *⁾

CE, UKCA, EAC, cULus

EMC notes

In case of push-in and mini-TC connectors, ESD air discharges conforming to EN 61000-6-4 into the connectors or to the lines connected there can lead to measurement deviations up to ±FSV within the respective channel or to other channels by crosstalk.

Peak voltages (surge) conforming to EN 61000-6-2 that are applied to the cable shield can lead to measurement deviations up to ±FSV.