FP-TB-1/2/3 Operating Instructions
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Powering the FieldPoint System
Consider the following points when connecting power to the
FieldPoint system.
•
The total current flowing through the V and C terminals must
be limited to 10 A. If you have a single external supply for the
field devices of more than one module, wire the supply to the
V and C terminals as shown in Figure 9.
Figure 9.
Connecting Power for Current Draws Below and Above 10 A
Caution
Cascading power from neighboring bases or
network modules defeats isolation between cascaded
modules.
•
When total current draw is less than 3 A, you can use a single
terminal for the return path. If the total current draw is greater
than 3 A, you should use separate C terminals, as shown in
Figure 10.
1
When total current draw is
less than 10 A
2
When total current draw is
greater than 10 A
1
2
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