Electrex FEMTO 96 Manuel d'installation - Page 4
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Également pour Electrex FEMTO 96 : Manuel d'installation (4 pages)
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 metered 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
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, the P1-P2 orientation and the S1-S2 connection of the CT(s) must be carefully respected. Disregard of this warning
or of wiring diagram leads to major measurement errors.
P1
P2
L1
S1
S2
L2
P1
P2
L3
S1
S2
U1 U2 U3
N
VOLTAGE INPUT POWER
I1
I2
I3
S1 S2 S1 S2 S1 S2 A B
P1
P2
L1
S1
S2
P1
P2
L2
S1
S2
P1
P2
L3
S1
S2
N
U1 U2 U3
N
VOLTAGE INPUT POWER
I1
I2
I3
S1 S2 S1 S2 S1 S2 A B
SINGLE PHASE 1PH-2W
P1
P2
L1
S1
S2
N
U1 U2 U3
N
17
18 19
VOLTAGE INPUT POWER
AUX
I1
I2
I3
RS-485
AUX
S1 S2 S1 S2 S1 S2 A B
10 11 12
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
if stranded and 4 mm
2
TRIANGLE 3W (3 WIRES) 3PH-3W-2CT
L1
L2
P1
L3
S1
17
18 19
20
AUX
RS-485
AUX
10 11 12
STAR 4W (4 WIRES) 3PH-4W
L1
L2
L3
17
18 19
20
AUX
RS-485
AUX
10 11 12
P1
P2
L1
S1
S2
N
20
U1 U2 U3
VOLTAGE INPUT POWER
I1
I2
S1 S2 S1 S2 S1 S2 A B
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 rigid.
2
P1
P2
S1
S2
P2
S2
U1 U2 U3
N
17
18 19
VOLTAGE INPUT POWER
I1
I2
I3
RS-485
S1 S2 S1 S2 S1 S2 A B
P1
P2
S1
S2
P1
P2
S1
S2
P1
P2
S1
S2
U1 U2 U3
N
17
VOLTAGE INPUT POWER
I1
I2
I3
RS-485
S1 S2 S1 S2 S1 S2 A B
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
N
17
18 19
20
AUX
I3
RS-485
AUX
10 11 12
L1
L2
P1
P2
L3
S1
S2
20
AUX
AUX
10 11 12
L1
L2
18 19
20
AUX
AUX
10 11 12
230 ÷ 240 V ±10%
U1 U2 U3
VOLTAGE INPUT POWER
I1
I2
S1 S2 S1 S2 S1 S2 A B
Serial RS485 port
P1
P2
S1
S2
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
P1
P2
S1
S2
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
2
if stranded, 4
N
L
FUSE
(50mA T)
N
17
18 19
20
AUX
I3
RS-485
AUX
10 11 12
A B
Engineered and manufactured in Italy
Made
in
Italy
Pensato, progettato e prodotto in Italia
Subject to modifi cation without notice.
Edition 2015 04 24 ENG0055