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B R A NCH CI RCU IT MON ITOR I NG
I N S TA L L AT I O N A N D CO M M I SS I O N I N G I N S T R U C T I O N S
—
ASPMETER split core
7. The adapter boards are silk screened with two rows of
numbers. For applications that require odd/even branch
circuit numbering, use the row designated ODD or EVEN.
For applications that require sequential numbering, use
the number row marked SEQ (Figures 11 and 12).
Figure 11.
Figure 12.
Panel 1 uses base Modbus address as set by DIP switches.
Panel 2 uses base + 1 Modbus address as set by DIP switches.
8. Configure communication and addressing parameters
using DIP switches. The ASPMETER requires two
addresses, one for each set of 42 current sensors
and four auxiliary inputs. See the configuration section
for more information.
9. Wire RS-485 communications (see diagrams in wiring
section).
10. Connect 0.333 V AC current transducers (CTs) to the main
conductors by snapping CTs around lines, observing
local codes regarding bending radius (optional; Figures 13
and 14).
Figure 13.
Recommended CT: AMP1 series available in 100 A max. to 2000 A max. Contact
your local ABB sales rep for recommended CTs amperages or if higher amperages
are required.
Figure 14.
Set up Modbus registers 115–118 for CT scaling.
Use base + 1 address for panel 2 setup.
Note: (+) represents black, (-) represents white
41
39
37
35
33
31
29
27
25
23
21
19
17
15
13
11
9
7
5
3
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
ODD
SEQ
BLACK
WHITE
Numbering – Adapter Board A:
ODD
SEQ
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41
21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
42
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
24
24
23
22
EVEN
SEQ
WHITE
BLACK
Numbering – Adapter Board B:
EVEN
SEQ
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42
22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42
Mains
Panel 1
Mains
Panel 2
Panel 2
Panel 1
A
B
A
B
Voltage taps are shared by both panels
Panel 1
Panel 2
Panel 1
Panel 2
CT Input
(0 to
0.333 Vac)
CT Input
(0 to
I1
0.333 Vac)
I2
I3
IN
I1
I3
I2
IN
±
±
±
±
±
±
±
±
41
39
37
35
33
31
29
27
25
23
21
19
17
15
13
11
9
7
5
3
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
ODD
SEQ
BLACK
WHITE
Numbering – Adapter Board A:
ODD
SEQ
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41
21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
42
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
24
24
23
22
EVEN
SEQ
WHITE
BLACK
Numbering – Adapter Board B:
EVEN
SEQ
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42
22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42
Mains
Panel 1
Mains
Panel 2
Panel 2
Panel 1
A
B
A
B
Voltage taps are shared by both panels
Panel 1
Panel 2
Panel 1
Panel 2
CT Input
(0 to
0.333 Vac)
CT Input
(0 to
I1
0.333 Vac)
I2
I3
IN
I1
I3
I2
IN
±
±
±
±
±
±
±
±
41
39
37
35
33
31
29
27
25
23
21
19
17
15
13
11
9
7
5
3
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
ODD
SEQ
BLACK
WHITE
Numbering – Adapter Board A:
ODD
SEQ
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41
21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
42
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
24
24
23
22
EVEN
SEQ
WHITE
BLACK
Numbering – Adapter Board B:
EVEN
SEQ
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42
22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42
Mains
Panel 1
Mains
Panel 2
Panel 2
Panel 1
A
B
A
B
Voltage taps are shared by both panels
Panel 1
Panel 2
Panel 1
Panel 2
CT Input
(0 to
0.333 Vac)
CT Input
(0 to
I1
0.333 Vac)
I2
I3
IN
I1
I3
I2
IN
±
±
±
±
±
±
±
±