Lock: indicate a breakdown of the UPS or one of its parts. Locks are normally preceded by an alarm signal. In
the event of a fault and resultant breakdown of the inverter, the inverter will be switched off and the load will be
powered by the bypass line (this procedure is excluded for breakdowns caused by high and persistent
overloads and by short circuits).
CODE
L01
L02
L03
L04
L05
L06
L07
L08
L09
L10
L11
L14
L17
L20
L23
L26
L29
L34
L35
L36
L37
L38
L39
L40
L41
L42
L43
L44
DESCRIPTION
Incorrect auxiliary power supply
One or more internal cables disconnected
Phase 1 input fuse broken or input relay locked (will not close)
Phase 2 input fuse broken or input relay locked (will not close)
Phase 3 input fuse broken or input relay locked (will not close)
BOOST stage overvoltage positive
BOOST stage overvoltage negative
BOOST stage undervoltage positive
BOOST stage undervoltage negative
Static bypass switch fault
Bypass output breakdown
Inverter overvoltage
Inverter undervoltage
Direct voltage at output of inverter or Sine wave inverter distorted
Overload at output
Short circuit at output of Phase1
output fuse broken or output relay locked (will not close)
Heat sink 1 overtemperature
Heat sink 2 overtemperature
Heat sink 3 overtemperature
Battery charger overtermperature
Temperature probe of heat sink 1 faulty
Temperature probe of heat sink 2 faulty
Temperature probe of heat sink 3 faulty
Temperature probe of battery charger faulty
BOOST battery 1 fuse blown
BOOST battery 2 fuse blown
BOOST battery 3 fuse blown
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