Eaton Cutler-Hammer IQ DP-4000 Installation, Operation And Maintenance Instructions page 43

IQ DP-4000
SECTION 6 - TROU BLESHOOTING AND MAINTENANCE
Advanced Products Support Center {APSC) at
809-2772.
Symptom
All Operator Panel indicators are off.
Digit 1 flashes in the display window,
indicating an external trip.
Digit 2 flashes in the display window
indicating an overvoltage
Digit 3 flashes in the display window,
indicating an undervoltage.
Digit flashes in the display window,
4
indicating a phase unbalance.
Digit 5 flashes in the display window,
indicating a voltage phase loss.
Digit 6 flashes in the display window,
indicating a cu rrent phase loss.
Digit 7 flashes in display
indicating a phase reversal.
8
Digit
flashes i n display
indicating an internal malfunction.
One or more voltage
incorrectly.
Cu rrent readings are not accurate or read
zero.
Power readings are incorrect.
Table 6 . A Initial Power-On Troubleshooting
40
1 -800-
Probable Cause(s)
AC line voltage level is deficient.
Separate Source AC control power is
deficient (only if using separate source
power module).
AC line, o r optional, external PTs are not
properly selected, wired, or installed.
A trip condition
i nitiated through
Port.
AC line, o r optional, external PTs are not
properly i n stalled or wired.
An Undervoltage condition actually exists.
A Phase Unbalance condition exists.
A Voltage Phase Loss condition exists.
Blown o r loose fuse(s).
A C u rrent Phase Loss condition exists.
window, A Phase Reversal condition exists.
I Q
window, DP-4000
malfunction.
phases read Blown or loose fuse(s).
I nco rrect PT ratio.
I ncorrect size CTs used.
I ncorrect CT ratio.
Phasing
incorrect.
has been externally
the Communications
detecting an internal
is
for voltage and cu rrent
Solution
Locate cause of deficiency in AC line
monitored.
Locate the cause of the deficiency in the
AC control power line.
sufficient, replace unit.
Verify that the AC line and/or PTs are
wired as shown on
drawings for the application.
Determine why the trip was i nitiated from
the external device
Communications Option.
Verify that the AC line, and PTs are
installed and wired as shown on the
wiring plan drawi ng for the application.
Isolate the AC line deficiency's cause.
Isolate the cause of
deficiency.
Isolate the cause of the
cause.
on
Check the fuse(s)
phase(s). Reseat fuse(s).
necessary.
Correct the i mproper wiring.
Isolate the cause of the AC line reversal.
Check the utility to determine thei r phase
sequence.
Replace the unit.
Check fuse(s) on the affected phase(s).
Reseat the fuse(s). Replace if necessary.
Check PT ratio.
Replace with proper size CTs.
Check CT ratio.
is Check phasing. Verify connections with
wiring diagrams.
TD1 7548A
If power is
the wiring plan
through the
the AC line
AC line phase
the affected
Replace
if