Eaton PDI JCOMM, Инструкция по установке и эксплуатации

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28 Eaton PDI JCOMM Enclosure Installation and Operation Manual P-164001107—Rev 01
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If the BCMS is not showing direct measurements of current for one or all circuits, perform the following
checks:
1. Check connections for the branch circuit CTs and their cable harness:
a. Check that CTs for circuits with no current readings are snapped shut over their circuit wires.
b. Also check that these CTs are securely connected to the cable harness at the correct connector.
c. Check that the cable harness for these CTs is securely connected to the JCOMM Connections Panel
at the correct location. (See
Figure 7 )
2. Check the orientation of branch circuit CTs:
a. Current measurements on a circuit depend on flow of current passing through the installed CT. The
green dot on the CT and the CT wire on branch circuit split-core CTs should be oriented to the right as
you face the panelboard to ensure correct directional flow of current through the CT. CTs must be
oriented this way on both the left and right sides of the panelboard.
b. Note: while current can be measured for the CT if its orientation is reversed, correct CT orientation is
necessary for determining related measurements, such as power factor.
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If voltage or power readings are not displaying, perform these checks:
1. Check that the voltage option listed is correct for your installation.
2. Check that branch circuit CTs are oriented correctly with the CT’s wire oriented to the right as you face the
panelboard. Incorrect CT orientation produces incorrect power factor measurements. (See
Figure 10 and
Figure 11 )
Troubleshooting Installation Problems