Troubleshooting Tips - Phase Technology Phase Perfect PT007 Operation & Installation Manual

TROUBLESHOOTING TIPS

If a fault occurs, a fault code will be displayed on the LCD screen. See Table 21 for a list of
fault codes. Fault codes generally indicate that an issue exists independent of the phase
converter.
Problem
No power
Load not
operating
Motor is spinning
backwards
LED lights
flickering or other
electrical noise
issues
Table 23 – Troubleshooting
Potential Cause
Incoming circuit breaker
continually trips
Blown fuses
Fault code displayed
AUX1 and AUX2 open
Signals to the Control
Terminals corrupted
Input terminals L1 and
L2 not energized
Overcurrent fault in
elevator application
Phase sequence to
motor is wrong.
Electromagnetic
interference issues
IGBT troubleshooting
See page 32 for information on
replacing fuses.
If fuses are blown, this may also
require replacing filter capacitors
and/or the power board if the MOV's
are damaged.
Use Table 21 for more information and
guidance on fault codes. Clear the fault
by power cycling the converter.
Remove the load to determine if the
issue is internal or external to the unit.
Check the jumper or switches
connected to the AUX1 and/or AUX2
Shielded cable is required for AUX
terminal leads longer than 20 ft.
Check the main input fuses or breaker.
Check the secondary circuit fuses. See
Figure 33 - Figure 35.
Check elevator specs to ensure PT is
sized correctly.
Swap any two of the three motor leads.
Ensure that problem does not persist
when PT is powered off.
Check grounding.
LED lighting can be prone to
noise/flickering when all LED lights are
being used. Installing an incandescent
light in a given circuit can often resolve
these problems.
Consider installing an EMI filter on the
phase converter input.
V2.0
Solution
inputs
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