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Page
V1.0
Table 16
– Modes for SW3 and SW4 (ON = up, OFF = down)
SW3
SW4
Result
OFF
OFF
Factory default: LCD screen will scroll various operating
parameters
– UNIT WILL OPERATE WHILE IN THIS MODE
ON
OFF
LCD screen will show Master Fault Log (non-resettable count of
all faults) UNIT
WILL NOT
OPERATE WHILE IN THIS MODE
ON
ON
LCD screen will show User Fault Log (resettable count of all
faults) UNIT
WILL NOT
OPERATE WHILE IN THIS MODE
OFF
ON
Reserved
TROUBLESHOOTING TIPS
If a fault occurs, a fault code will be displayed on the LCD screen. See
Table 15
for a list of
fault codes.
Table 17
– Troubleshooting
Problem
Potential Cause
Solution
Load not
operating
Fault code displayed
Use
Table 15
– Fault Codes
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.
AUX1 and AUX2 open
Check the jumper or switches
connected to the AUX1 and/or AUX2
inputs
Signals to the Control
Terminals corrupted
Shielded cable is required for AUX
terminal leads longer than 20 ft.
Input terminals L1 and
L2 not energized
Check the main input fuses or breaker.
Check the secondary circuit fuses. See
Figure 21
– PT Small Frame Fuse
Location
– Figure 23.
Motor is spinning
backwards
Phase sequence to
motor is wrong.
Swap any two of the three motor leads.
