Electrex FEMTO D4 70A Istruzioni per l'installazione - Pagina 4

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Electrex FEMTO D4 70A Istruzioni per l'installazione
Voltage connection: Use cables with max cross-section of 2,5 mm
the applicable diagrams that follow.
Current connection
Use only the CT's provided with the instrument. Connect the CT output(s) to the terminals marked I1, I2, I3 (CURRENT INPUT) of the instrument according to the applicable diagrams
that follow.
N.B. 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.
Warning: The phase relationship among voltage and current signals and the R-B orientation of the CT must be carefully respected. All disregard of this rule or of the wiring diagram leads
to severe measurement errors. Do not lengthen the CT cables.
STAR 4W (4 WIRES) 3PH-4W
L1
R
L2
R
B
L3
R
B
N
TRIANGLE 3W (3 WIRES) 3PH-3W-2CT
L1
R
L2
L3
R
B
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
B
U1 U2 U3
N
17
18 19
20
VOLTAGE INPUT POWER
AUX
I1
I2
I3
RS-485
AUX
S1 S2 S1 S2 S1 S2 A B
10 11 12
B
U1 U2 U3
N
17
18 19
20
VOLTAGE INPUT POWER
AUX
I1
I2
I3
RS-485
AUX
S1 S2 S1 S2 S1 S2 A B
10 11 12
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
L1
N
L1
L2
POWER SUPPLY AND SERIAL LINE CONNECTION
The instrument is fi tted with a separate power supply. The power supply terminals are
numbered (17) and (18). Use cables with max cross-section of 2,5 mm
mm
if rigid.
2
SINGLE PHASE 1PH-2W
R
B
U1 U2 U3
N
17
18 19
20
VOLTAGE INPUT POWER
AUX
I1
I2
I3
RS-485
AUX
S1 S2 S1 S2 S1 S2 A B
10 11 12
BI-PHASE 2PH-2W
R
B
U1 U2 U3
N
17
18 19
20
VOLTAGE INPUT POWER
AUX
I1
I2
I3
RS-485
AUX
S1 S2 S1 S2 S1 S2 A B
10 11 12
230 ÷ 240 V ±10%
N
L
FUSE
(50mA T)
U1 U2 U3
N
17
18 19
20
VOLTAGE INPUT POWER
AUX
I1
I2
I3
RS-485
AUX
S1 S2 S1 S2 S1 S2 A B
10 11 12
Serial RS485 port
A B
Subject to modifi cation without notice.
2
if stranded, 4
Engineered and manufactured in Italy
Made
in
Italy
Pensato, progettato e prodotto in Italia
Edition 15-09-2009.