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12
B R A N C H C I R C U I T M O N I T O R I N G I N S TA L L AT I O N A N D C O M M I S S I O N I N G I N S T R U C T I O N S
—
ASPMETER solid core
3. Verify that the serial numbers printed on the current strip
and on the data acquisition board match. The board and
the strip are sold as a calibrated set.
4. Configure communication and addressing parameters
using DIP switches. See the configuration section for
more information.
5. Install the ASPMETER acquisition board mounting bracket
in the panel using screws and bolts provided (Figure 7).
The grounding connection is located on the mounting
bracket, near the lower right corner. Use this stud to
ground the bracket when it is mounted on a plastic
surface.
Figure 7.
6. Connect current sensor ribbon cables to the 50-pin
connectors on the main board (Figures 8 and 9).
Orient cables so that the red stripe is on the left.
Figure 8.
Red stripe
Align ribbon cable key with connector
keyhole. Orient ribbon cable so that the red
stripe is on the left side of the connector.
Figure 9.
A
A
A
A
Panel 1
Panel 1
Panel 1
A
B
B
Panel 1
B
A
Panel 1
B
B
Panel 1
B
7. Wire RS-485 communications (see diagrams in wiring
section (page 8).
8. Connect 0.333 V AC CTs to the main conductors by snapping
CTs around lines, observing local codes regarding bending
radius (optional; Figure 10).
Figure 10.
Recommended CT: AMP1 series available in 100 A max. to 2000 A max.
Contact your local ABB sales rep for recommended CT amperages or
if higher amperages are required.
Figure 11.
CT Input
±
±
I1
±
I1
I1
±
I1
±
(0-0.333 VAC)
I1
±
±
±
I1
I2
I2
±
I2
±
I2
±
I2
±
±
±
I2
I3
I3
±
I3
±
I3
±
I3
±
±
I3
±
IN
IN
±
IN
±
IN
±
IN
±
IN
Set up Modbus registers 115–118 for CT scaling.
9. Connect 2-wire 90–277 V AC power to main power terminals.
Observe polarity. For the ASPMETERA and ASPMETERB,
connect lines to the voltage taps (Figure 12). Equip voltage
lines with fuses.
Figure 12.
V2/N
90-277 VAC
V1
Line to line (L-L) voltage: 150 to 480 V AC
Line to neutral (L-N) voltage: 90 to 277 V AC
V1
V1
V2
V2
V3
V3
V1
V2
V3
V1
V2
V3
V1
V2
V3
V1
V2
V3
N
L - L
L - N
L - L
L - N
L - L
L - N
L - L
L - N
L - L
L - N
L - L
L - N
N
N
N
N
N
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