ELM3002-0205 - Technical data

Analog inputs

2 channels

Time relation between channels

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

ADC conversion method

ΔΣ (deltaSigma) with internal 8 Msamples/s sample rate

Ground reference

Differential

Input filter limit frequency for hardware
(see explanations in chapter
Firmware filter concept, ELM3xxx documentation)

Before AD converter: Hardware low-pass -3 dB @ 330 kHz, type: Butterworth 4th order

In the AD converter after conversion: adjustable low-pass filter
- for short settling time: Sinc3/mean filter, -3 dB@13.1 kHz, settling time tbd
- for flat frequency response: wide-range low ripple filter, -3 dB @ 21.7 kHz, <-100 dB @ 25 kHz, settling time > 10ms

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

20 µs/50 kSps per channel, fixed

Then free down sampling by Firmware via decimation factor

Oversampling

1...100 can be selected

Supported EtherCAT cycle time

(dependent on operation mode)

DistributedClocks: min. 100 µs, max. 10 ms

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

FreeRun: not yet supported

Connection diagnosis

-

Internal analog ground AGND

Not accessible

Surge voltage protection of the inputs, based on AGND (internal ground)

-

Internal power supply

via E-bus

Current consumption via E-bus

typ. 400 mA

Current consumption of power contacts

-

Thermal power dissipation

typ. 3 W

Dielectric strength – destruction limit

See information on electrical isolation

Recommended operating voltage range for compliance with specification

See information on electrical isolation

Distributed Clocks

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

Special features

ExtendedRange 107 % and 400%, free numeric filter, TrueRMS, integrator/differentiator, non-linear scaling, PeakHold

Functional diagnosis ¹⁾

Yes

Electrical isolation
channel/channel ²⁾

Reinforced insulation in accordance with EN 61010-2-030, EN60664-1

6 kV DC, 5 sec ramp, 2 sec hold production test

Type test: 13 kV DC, 1 min

Max. operating voltage range (continuous, operation without CAT measurement category, i.e. without transient overvoltages):
U_Diff: ±1288 V_Peak
U_SE: ±1000 V DC / AC_eff
U_CM: ±1000 V DC / AC_eff
For an explanation of terms, see ³⁾

Electrical isolation
channel/E-bus ²⁾

Reinforced insulation in accordance with EN 61010-2-030, EN60664-1

6 kV DC, 5 sec ramp, 2 sec hold production test

Type test: 13 kV DC, 1 min

Max. operating voltage range (continuous, operation without CAT measurement category, i.e. without transient overvoltages):
U_Diff: ±1288 V_Peak
U_SE: ±1000 V DC / AC_eff
U_CM: ±1000 V DC / AC_eff
For an explanation of terms, see ³⁾

Electrical isolation
channel/SGND ²⁾

Reinforced insulation in accordance with EN 61010-2-030, EN60664-1

6 kV DC, 5 sec ramp, 2 sec hold production test

Type test: 13 kV DC, 1 min

Max. operating voltage range (continuous, operation without CAT measurement category, i.e. without transient overvoltages):
U_Diff: ±1288 V_Peak
U_SE: ±1000 V DC / AC_eff
U_CM: ±1000 V DC / AC_eff
For an explanation of terms, see ³⁾

Measurement category / overvoltage category

1000 V CAT II; according to EN 61010-2-030

in preparation: 1000 V CAT III, 600 V CAT IV; according to EN 61010-2-030

1500 V DC upon request

Notes:
- the definition of the measurement category is an environmental definition, it defines, among other things, the expected overvoltages
- the voltage values stand for DC and AC_eff with a sinusoidal signal. From FSV_max= 1200 V, a max. sinusoidal voltage of UAC, offset = 848 V_eff is obtained. For non-sinusoidal signals, the peak value may not be higher than the specified DC value.

Configuration

via the EtherCAT Master, e.g. TwinCAT

Note to cable length

-

Connection type

4 mm safety laboratory socket, touch-protected, maintenance plug

Dimensions (W x H x D)

30 mm x 100 mm x 102 mm, see chapter Housing, ELM3xxx documentation

Mounting

on 35 mm rail conforms to EN 60715

Note mounting

Plugs not within scope of delivery, see chapter

Notes on connection technology, ELM3xxx documentation

Weight

Approx. 350 g

Permissible ambient temperature range during operation

0…+55 °C

(-25…+60 °C approval in preparation)

Permissible ambient temperature range during storage

-40…+85 °C

Permissible operating altitude range

0 up to 2000 m (according to EN 61010-1)

Relative humidity

max. 95%, no condensation

Protection class

IP 20

Pollution level

2 or better (according to EN 61010-1)

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

Approvals/ markings *⁾

CE

UL in preparation

EMC notes

Contact discharges conforming to EN61000-6-4 onto the terminal enclosure can lead to measurement deviations up to ±FSV on all channels.
The use of EKM1101 or EL9540-0010 is recommended against fast transient disturbances conforming to EN61000-4-4 (Burst) that affect the entire station.