CARLO GAVAZZI EM21 - COMMUNICATION PROTOCOL V1 REV0 Instrukcja Użytkownika Pobierz pdf (Strona 8)

8 Specifications ar

e subject to change without notice EM2172D DS ENG 280708

EM21 72D

3-CT and 3-VT/PT connections3-CT connection

3-ph, 4-wire, unbalanced load

Fig. 2

3-ph, 4-wire, unbalanced load Fig. 1

(6A) Self power supply, system type selection: 3P.n

6A inputs V inputs

Wiring diagrams

3-CT and 2-VT/PT connections

3-ph, 3-wire, unbalanced load

Fig. 4

2-CT and 2-VT/PT connections ARON

3-ph, 3-wire, unbalanced load

Fig. 6

2-CT connections (ARON)

3-ph, 3-wire, unbalanced load Fig. 5

1-CT and 2-VT/PT connections

3-ph, 3-wire, balanced load

Fig. 8

3-CT connection

3-ph, 3-wire, unbalanced load

Fig. 3

1-CT connection

3-ph, 3-wire, balanced load

Fig. 7

(6A) System type selection: 3P.n

(6A) Self power supply, system type selection: 3P

NOTE: a 2-wire connection for voltage mea-

sur

ement is available accross

9 and 10 .

RS485

Static output

8710

321

8710

321

8710

321

8710

321

8710

321

8710

321

8710

(*)

(*) NOTE: For a correct power supply of the instrument, the neutral must always be connected.

1 2 3 4 5 6 7 8 9 10

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CARLO GAVAZZI EM21 - COMMUNICATION PROTOCOL V1 REV0 Instrukcja Użytkownika Strona 8

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