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INFOSEC UPS SYSTEM – 4 rue de la Rigotière – 44700 Orvault – France – www.infosec-ups.com
Hot Line Tel : +33 (0)2 40 76 15 82 – fax : +33(0)2 40 94 29 51 – hotline@infosec.fr –12 13 AA 59 203 07
Fault status
Description
When UPS has fault happened, the inverter will be blocked. It will display fault
code in screen, and the icon will light up. You can find the code meaning in the
fault code table.
LCD display
3-9. Fault Code
Fault code Fault event Icon Fault code Fault event Icon
01 Bus start failure None 1A Inverter A negative power
fault
None
02 Bus over None 1B Inverter B negative power
fault
None
03 Bus under None 1C Inverter C negative power
fault
None
04 Bus unbalance None 21 Battery SCR short circuited None
06 Converter over current None 24 Inverter relay short circuited None
11 Inverter soft start failure None 29 Battery fuse broken in
Battery mode
None
12 High inverter voltage None 31 Parallel communication
failure
None
13 Low inverter voltage None 36 Parallel output current
unbalance
None
14 Inverter A output(line to
neutral) short circuited
41 Over temperature None
15 Inverter B output(line to
neutral) short circuited
42 DSP communication failure None
16 Inverter C output(line to
neutral) short circuited
43 Overload
17 Inverter A-B output (line
to line) short circuited
46 Incorrect UPS setting None
18 Inverter B-C output (line
to line) short circuited
47 MCU communication failure None
19 Inverter C-A output (line
to line) short circuited
48 Two DSP firmware versions
are incompatible.
None
49 Input and output phases are
incompatible
None