p4
3. WIRING
20
21
22
1 2 3 4 5 6 7 8 9
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
C
E
D
B
A
- inputs
Location of terminals
(view of case rear side)
Wiring recommendations
The input network may carry significant parasites, and they may disturb the complete processing chain. In order to
avoid this, the immunity from disturbances can be made significantly better by respecting a few simple rules :
- do not connect too close : the input network and the Peca 5 power supply wires,
- do not connect too close : the inut network and all the Peca 5 output wires,
- use for all Peca 5 outputs shielded cables connected to the GND on both ends.
To avoid any influence of the current intake on the voltage
measurement, connect CTs before VTs.
Network
Load
S1
!
INPUTS
Respect correct wiring : S1 corresponds to P1, S2 corresponds to P2. The CT and VT S2 secondaries must
be connected to the earth. Connect this point to terminal 2 on the instrument.
!
1
2
3
-
~
~
+
AC
DC
OUTPUTS
(Options)
POWER SUPPLY
26
27
28
29
30
31
2 RELAYS
T1
C1
R1
T2
C2
R2
T : ON
C : Common
R : OFF
0-4/20mA active
ACTIVE CURRENT
0-4/20mA passive
External source 30 V max.
VOLTAGE
PASSIVE CURRENT
32
33
34
35
36
37
4 RELAYS
20
21
22
DIGITAL
Data link RS 485
B
A
COM
T3
C3
R3
T4
C4
R4
or
+
23
24
25
V
Lr
+
-
+
-
23
24
25
mA
C
C
E
D
B
A
6 5 7 8
L1
L2
L3
Load
S1 S2
6 5 7 8
Load
L1
L2
L3
S1 S2
5
6
7 8
P
N
Load
6 5
7 8
P
N
Load
without VT
without CT
Umax = 500 V
Imax = 5 A
with VT
with CT
with VT
with CT
SINGLE PHASE
3-PHASE BAL. WITHOUT NEUTRAL:
3W BAL
3-PHASE BALANCED WITH NEUTRAL:
4W BAL
without VT
without CT
Umax = 500 V
between phs.
Imax = 5 A
6 5 7 8
Load
without VT
without CT
Umax = 500 V
phase neutral
Imax = 5 A
L1
L2
L3
N
S1 S2
6 5 7 8
Load
L1
L2
L3
N
with VT
with CT
