CARLO GAVAZZI EM21 - COMMUNICATION PROTOCOL V1 REV0 Instrukcja Użytkownika Pobierz pdf

Specifications are subject to change without notice EM2172D DS ENG 280708 1

• Class B (kWh) according to EN50470-3

• C

lass 1 (kWh) according to EN62053-21

• Class 2 (kvarh) according to EN62053-23

• Accuracy ±0.5 RDG (current/voltage)

• Energy meter

• Instantaneous variables readout: 3 DGT

• Energies readout: 6+1 DGT

•

System variables: W, var, PF, Hz, Phase-sequence.

• S

ingle phase variables: V

A, PF

• Energy measurements: total kWh and kvarh

• T

RMS measurements of distorted sine waves

(voltages/currents)

• Self power supply

• Dimensions: 4-DIN modules and 72x72mm

• Protection degree (front): IP50

• Application adaptable display and programming

procedure (Easyprog function)

•

Easy connections management

• Detachable display

Product Description

Three-phase energy meter

with removable front LCD

display unit. The same unit

can be used either as a

DIN-rail mounting or a pan-

el mounting energy meter.

This general purpose three-

phase energy meter is suit-

able for both active and

reactive energy metering

for cost allocation but also

for main electrical parame-

ter measurement and

retransmission (transducer

function). Housing for DIN-

rail mounting with IP50

Energy Management

Energy Meter

Type EM21 72D

• Multi-use housing: for both DIN-rail and panel

mounting applications

(front) protection degree.

Current measurements car-

ried out by means of exter-

nal current transformers

and voltage measurements

carried out either by means

of direct connection or by

means of potential trans-

formers. EM21-72D is pro-

vided, as standard, with a

pulsating output for active

energy retransmission. In

addition a 2-wire RS485

communication port is

available as an option.

Model

Range code

System

Power supply

Output 1

Output 2

Option

How to order

EM21 72D AV5 3 X O X X

Type Selection

Range codes

V5 (*)

400V

AC, 5(6)A or

1(6)A

(***)

(CT connection)

AV6 (**):120V

/230V

5(6)A or 1(6)A

(***)

(VT/PT and

CT connections)

Options

X (*): None

System

3 (*): balanced and

unbalanced load:

3-phase, 4-wire;

3-phase, 3-wir

2-phase, 3-wire;

1-phase, 2-wire

Output 1

O (*): Single static output

(opto-mosfet)

Power supply

X (*): Self power supply

from 18V to 260VAC

VLN, 45 to 65 Hz

(connection VL1-N)

Output 2

X (*): None

S (**): RS485 port

(*) as standar

(**) on request.

(***) the range 1(6)A

is available but not in

compliance with the

EN50470-3 standar

1 2 3 4 5 6 7 8 9 10

Podsumowanie treści

Strona 1 - Type EM21 72D

Specifications are subject to change without notice EM2172D DS ENG 280708 1• Class B (kWh) according to EN50470-3• Class 1 (kWh) according to EN

Strona 2 - Input specifications

10 Specifications are subject to change without notice EM2172D DS ENG 280708EM21 72D1. KeypadTo program the configuration parameters and scroll th

Strona 3 - Software functions

2 Specifications are subject to change without notice EM2172D DS ENG 280708EM21 72DRated inputsSystem type: 3Current type Not isolated (shunt inpu

Strona 4 - General specifications

Specifications are subject to change without notice EM2172D DS ENG 280708 3EM21 72DProtocol MODBUS/JBUS (RTU)Data (bidirectional)Dynamic (readin

Strona 5 - Used calculation formulas

4 Specifications are subject to change without notice EM2172D DS ENG 280708EM21 72DSelf power supply 18 to 260VAC (48-62Hz).Across input “VL1” and

Strona 6 - Display pages

Specifications are subject to change without notice EM2172D DS ENG 280708 5EM21 72DAccuracy (According to EN50470-3 and EN62053-23)kWh, accuracy

Strona 7

6 Specifications are subject to change without notice EM2172D DS ENG 280708EM21 72D(x) = available(o) = not available (zero indication on the disp

Strona 8 - Wiring diagrams

Specifications are subject to change without notice EM2172D DS ENG 280708 7EM21 72DAdditional available information on the displayList of selec

Strona 9 - RS485 port wiring diagram

8 Specifications are subject to change without notice EM2172D DS ENG 280708EM21 72D3-CT and 3-VT/PT connections3-CT connection3-ph, 4-wire, unbala

Strona 10 - Front panel description

Specifications are subject to change without notice EM2172D DS ENG 280708 9EM21 72D2-CT connection2-ph, 3-wire Fig

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CARLO GAVAZZI EM21 - COMMUNICATION PROTOCOL V1 REV0 Instrukcja Użytkownika

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Podsumowanie treści

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