10 DATA
TD 172838
Table 7.8
Symptom
Probable Cause(s)
So
luti
on
All Operator Panel indicators are off.
•
Control power is deficient.
•
Locate control power deficiency.
•
Unit is malfunctioning.
•
Replace unit. (See Paragraph
7.2)
Before attempting to troubleshoot the
10
Data and the
associated equipment, read and observe the Dangers listed
in the box on the previous page. When the normal operational
conditions of the
10
Data listed above cannot be observed,
refer to Table 7.A. This Table lists a probable cause and sug
gests an approach for each possible symptom.
7.1.2 Operational Troubleshooting -
A troubleshooting
chart, shown in Table 7.B, lists the probable causes and solu
tions for each of a number of symptoms. This Table assumes
the
10
Data has been operating properly for a period of time.
Before attempting to troubleshoot the unit and its associated
equipment, read and observe the Dangers listed in this
Section.
7.2 Unit Replacement -
Follow this procedure to replace
the
10
Data.
Step 1 -
Remove AC power at the main disconnect or isola
tion switch of the line being monitored. If the switch is located
at a distance from the
10
Data, lock it out to guard against
personnel accidentally turning it on.
Step 2 -
Before disconnecting any wires from the unit, make
sure they are individually identified to assure that reconnec
tion will be correctly performed. Make a sketch to help with
the task of terminal and wire identification.
Step 3-
If an optional module connects with the Communi
cations Port, carefully unplug it. The connectors may be
screwed together.
Step 5 -
Loosen each screw terminal or nut where there is
24
a wire connection. Remove the associated wire.
Step 6 -
Remove the 6 mounting screws holding the unit
against the door or panel. These are accessed from the
10
Data's rear.
CAUTION: Be prepared to support the
10
Data from its front
side once most of the screws are loosened or removed. With
out such support, the unit could fall off, and the Panel could
be damaged.
Step 7 -
Carefully lay these screws aside for later use.
Step
8 -
Read Paragraph 4.1.2 before attempting to mount
the replacement unit.
Step
9
-
Reverse the procedure noted in Steps 3 thru 6.
Step
10
-
Using the sketch noted in Step 2, above, replace
each wire at the correct terminal. Be sure each is firmly
tightened.
Step 11 -
Set the DIP switches on the right rear of the unit
according to the individual application's Installation Record
Sheet. (If necessary, see Paragraph 4.3 for details.)
Step 12 -
Restore AC power and verify that the Operator
Panel functions, after an initial 2-second delay, are as follows:
•
The l
A
AMPS RMS LED and V
AB
VOLTS RMS LED
illuminate.
•
The Display Window shows the actual line phase A
amperes and phase A-B voltage.
Shaded area designates information that
replaces or supplements applications using
the 3-phase Power Module.
www
. ElectricalPartManuals
. com
