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44
4.9 Fault Codes - When
Icon is Solid (Not Flashing)
Fault code Fault Event Icon Fault Code Fault Event Icon
01 Bus start failure None 42 DSP communication failure None
02 Bus over None 43 Overload
03 Bus under None 46 Incorrect UPS setting None
04 Bus unbalance None 47 MCU communication failure None
06 Converter over current None 48
Two DSP firmware versions are
incompatible in parallel system
None
11 Inverter soft start failure None 60 Bypass phase short circuited
12 High inverter voltage None 61 Bypass SCR short circuited None
14
Inverter R output (line to neutral) short
circuited
62 Bypass SCR open circuited None
15
Inverter S output (line to neutral) short
circuited
63 Voltage waveform abnormal in R phase None
16
Inverter T output (line to neutral) short
circuited
64 Voltage waveform abnormal in S phase None
17
Inverter R-S output (line to line) short
circuited
65 Voltage waveform abnormal in T phase None
18
Inverter S-T output (line to line) short
circuited
66 Inverter current sample abnormal None
19
Inverter T-R output (line to line) short
circuited
67 Bypass O/P short circuited
1A Inverter A negative power fault None 68 Bypass O/P line to line short circuited
1B Inverter B negative power fault None 69 Inverter SCR short circuited None
1C Inverter C negative power fault None 6C BUS voltage drops too fast None
21 Battery SCR short circuited None 6D Current sampling error value None
23 Inverter relay open circuited None 6E SPS power error None
24 Inverter relay short circuited None 6F Battery polarity reverse None
25 Line wiring fault None 71 PFC IGBT over-current in R phase None
31 Parallel communication failure None 72 PFC IGBT over-current in S phase None
32 Host signal failure None 73 PFC IGBT over-current in T phase None
33 Synchronous signal failure None 74 INV IGBT over-current in R phase None
34 Synchronous trigger signal failure None 75 INV IGBT over-current in S phase None
35 Parallel communication loss None 76 INV IGBT over-current in T phase None
36 Parallel output current unbalance None
41 Over temperature None
4. Operation
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