KACO Powador XP500-XP550-HV TL - Manual (Page 50)

Page 50 Operating Instructions Powador XP500/550-HV-TL
Faults and Warnings
Code Message Warning Description Possible problem and Solution(s)
2 PV Over Current PV current exceeds the parame-
ter [DC over current Level] Possible problem
• The current of the solar generator is too
high
• PV system wiring short
Solution(s)
• Check the input current
• Check module wiring and system
4 CB10(PV CB) Trip PV side circuit breaker(CB10)
tripped Possible problem
• CB10 disconnect switch is open
• Auxiliary switch is inoperable, CB10
contactor failed closed
Solution(s)
• Check the wiring connection
• Change the CB10, replace CB10
contactor
5 PV Polarity Failure Polarity(+, -) of PV side is
reversed Possible problem
• Polarity of PV side is reversed
Solution(s)
• Check the wiring connection and
change if necessary
6 Ground Fault PV side ground fault Possible problem
• The GFDI fuse in inverter is opened
causing PV side grounding or short-cir
cuit fault (DC side Grounding Type)
• The unbalance of measured PV voltage
in inverter causing PV side grounding
or short-circuit fault (DC side Isolation
Type)
Solution(s)
• Check the solar generator for a ground
ing or short-circuit fault and Replace the
GFDI Fuse (DC side Grounding Type)
• Check the solar generator for a ground
ing or short-circuit fault (DC side
Isolation Type)
10 Inv. Over Voltage Inverter side Voltage over the
parameter [Grid Over Voltage
Level 2] Possible problem
• The inverter voltage is too high
Solution(s)
• Check the inverter voltage
• Check the inverter parameter
Table 10: Fault