Fault Code Descriptions
152379 Rev C 4–9
XX62 Matrix Temperature S This fault indicates that the PV100S
has detected that the temperature of
the IGBT matrix aluminum heatsink
has exceeded the maximum allowed
value of 95 °C.
• Fuses F15 or F16 blown
• External cooling fan
inoperable
• Air flow on heat sink
impeded due to
accumulation of debris
• Operation above rated
ambient temperature for
an extended period of
time
0070 Interlock Activated H This fault indicates that the PV100S
has detected that the door of the Main
Inverter enclosure is open and the
door interlock switch is in the active
position. This fault is primarily for
personnel safety. Opening the door of
the Main Inverter enclosure while the
PV100S is processing power will
cause an immediate orderly shutdown
of the system.
• Door is open and
interlock switch is
active
• Interlock switch is
inoperable
• P2 or P3 on CCU2 is
loose or disconnected
• CCU2 +/-15Vdc Power
Supply is defective
0071 PV Switch Open H This fault indicates that the PV100S
has detected that the DC disconnect
switch (S2) is open and the auxiliary
switch is in the active position. This
fault is primarily for personnel safety.
Opening the DC disconnect switch
while the PV100S is processing
power will cause an immediate
orderly shutdown of the system.
• DC disconnect switch is
open and auxiliary
switch is active
• Auxiliary switch is
inoperable
• P2 or P3 on CCU2 is
loose or disconnected
• CCU2 +/-15 Vdc Power
Supply is defective
0074 Fused PV Contactor S This fault indicates that the PV100S
has detected that upon system
shutdown, the DC bus voltage has
remained within 5% of the DC input
voltage for more than 10 seconds.
This condition is indicative of a fused
PV contactor (K2).
• K2 is inoperable
• SSR2 is inoperable
Table 4-1
Fault Codes
Error
Code Fault Source(s)
Fault Type
H=Hardware
S=Software
Fault Description Possible Causes
