ABB AC 800M Installation Manual page 68

Primary Network Configuration
3.
4.
Figure 24
Figure 24. Single Supply Center-Connected
Calculation method:
Section 1 length = Section 2 length = 400 ft.
Section 1 electric current = 0.1 A + 0.25 A + 0.2 A = 0.55 A.
Section 2 electric current = 0.15 A + 0.25 A + 0.15 A = 0.55 A.
Table 13
Table 13
Conclusion: Power supply located in the center is feasible for both sections.
68
If thin cable trunk line is used for a section, then refer to
If the electric current in both thick trunk line and thin trunk line are lower than
the values provided in the respective tables
network can support a single supply center-connected configuration.
shows the single supply center-connected using a thick cable trunk line.
electric current limit for 400 ft (Section 1) = 2.63 A.
electric current limit for 400 ft (Section 2) = 2.63 A.
(Table 13
Power Tap
Power
Supply
Section 3 Installation
Table 23 and Figure
and Table 23), then the
9ARD000015-600
9.