Electrex EXA RJ45 설치 매뉴얼 - 페이지 4

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페이지 인쇄
Voltage connection: Use cables with max cross-section of 2,5 mm
the applicable diagrams that follow.
Current connection: It is necessary to use external CTs with a primary rating adequate to the load to be measured and with a 5A or 1A secondary rating. Connect the CT output(s) to
the terminals marked I1, I2, I3 (CURRENT INPUT) of the instrument according to the applicable diagrams that follow. Use cables with cross-section adequate to the VA rating of the CT
and to the distance to be covered. The max cross-section for the terminals is 2,5 mm
Note: The CT secondary must always be in short circuit when not connected to the instrument in order to avoid damages and risks for the operator.
Scrupulously respect the matching of phase between the voltage signals and current signals (RTD) and the direction of insertion of CT (P1-P2 and S1-S2). Failure to comply with this
correspondence and connection diagrams gives rise to measurement errors. (*) The grounding of S2 must be close to the CT and not near the instrument.
STAR 4W (4 WIRES) 3PH-4W LV
P1
L3
S1
P1
P2
L2
S1
S2
P1
P2
L1
S1
S2
N
*
S1 S2 S1 S2 S1 S2
I1
I2
CURRENT INPUTS
VOLTAGE INPUTS
V1
V2
V3
TRIANGLE 3W (3 WIRES ) 3PH-3W
P1
L3
S1
P1
P2
L2
S1
S2
P1
P2
L1
S1
S2
*
S1 S2 S1 S2 S1 S2
I1
I2
CURRENT INPUTS
VOLTAGE INPUTS
V1
V2
V3
TRIANGLE 2CT(3 WIRES ) 3PH-3W MV
L3
L2
P1
P2
L1
S1
S2
*
S1 S2 S1 S2 S1 S2
I1
I2
CURRENT INPUTS
VOLTAGE INPUTS
V1
V2
V3
akse srl Via Aldo Moro, 39 42124 Reggio Emilia Italy
Tel. +39 0522 924 244 Fax +39 0522 924 245 [email protected] www.akse.it
P.I. 01544980350 R.E.A. 194296
VOLTAGE AND CURRENT CONNECTION
2
if stranded 4 mm
P2
L3
S2
L2
L1
B A 10 11 12
I3
AUX
RS-485
IN/OUT
Exa
Net
POWER
AUX
SUPPLY
IN/OUT
N
17
18
19 20
21
P2
S2
L2
L1
B A 10 11 12
AUX
I3
RS-485
IN/OUT
Exa
Net
POWER
AUX
SUPPLY
IN/OUT
N
17
18
19 20
21
P1
P2
S1
S2
B A 10 11 12
I3
AUX
RS-485
IN/OUT
Exa
Net
POWER
AUX
SUPPLY
IN/OUT
N
17
18
19 20
21
Cap. Soc. Euro 85.800,00 i.v.
2
if rigid and connect them to the clamps marked VOLTAGE INPUT on the instrument according to
if stranded and 4 mm
if rigid.
2
2
STAR 4W (4 WIRES) 3PH-4W MV
P1
P2
S1
S2
P1
P2
S1
S2
P1
P2
S1
S2
*
S1 S2 S1 S2 S1 S2
B A 10 11 12
I1
I2
I3
CURRENT INPUTS
RS-485
VOLTAGE INPUTS
POWER
SUPPLY
V1
V2
V3
N
17
18
BI-PHASE (2 WIRES ) 2PH-2W
P1
P2
S1
S2
*
S1 S2 S1 S2 S1 S2
B A 10 11 12
I1
I2
I3
CURRENT INPUTS
RS-485
VOLTAGE INPUTS
POWER
SUPPLY
V1
V2
V3
N
17
18
19 20
The instrument is fi tted with a separate power supply. The power supply terminals are
numbered (17 e 18). Use cables with max cross-section of 2,5 mm
rigid.
SINGLE PHASE (2 WIRES) 1PH-2W
L1
N
*
AUX
IN/OUT
Exa
Net
AUX
IN/OUT
19 20
21
TRIANGLE 2CT (3 WIRES ) 3PH-3W
L3
L2
L1
*
AUX
IN/OUT
Exa
Net
AUX
IN/OUT
21
POWER SUPPLY
S1 S2 S1 S2 S1 S2
B A 10 11 12
I1
I2
I3
CURRENT INPUTS
RS-485
VOLTAGE INPUTS
POWER
SUPPLY
V1
V2
V3
N
17
18
FUSE
85-265VAC 100-375VDC
T 500mA
P1
P2
S1
S2
S1 S2 S1 S2 S1 S2
B A 10 11 12
I1
I2
I3
AUX
CURRENT INPUTS
RS-485
IN/OUT
Exa
Net
VOLTAGE INPUTS
POWER
AUX
SUPPLY
IN/OUT
V1
V2
V3
N
17
18
19 20
21
P1
P2
S1
S2
P1
P2
S1
S2
S1 S2 S1 S2 S1 S2
B A 10 11 12
I1
I2
I3
AUX
CURRENT INPUTS
RS-485
IN/OUT
Exa
Net
VOLTAGE INPUTS
POWER
AUX
SUPPLY
IN/OUT
V1
V2
V3
N
17
18
19 20
21
if stranded, 4 mm
if
2
2
AUX
IN/OUT
AUX
IN/OUT
19 20
21
Engineered and manufactured in Italy
Made
in
Italy
Pensato, progettato e prodotto in Italia
Subject to modifi cation without notice.
Eidition 2015 04 24 ENG0091