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 DESCRIPTION
L01
Incorrect auxiliary power supply
L02
One or more internal cables disconnected
L03
Phase 1 input fuse broken or input relay locked (will not close)
L04
Phase 2 input fuse broken or input relay locked (will not close)
L05
Phase 3 input fuse broken or input relay locked (will not close)
L06
BOOST stage overvoltage positive
L07
BOOST stage overvoltage negative
L08
BOOST stage undervoltage positive
L09
BOOST stage undervoltage negative
L10
Static bypass switch fault
L11
L1 bypass output breakdown
L12
L2 bypass output breakdown
L13
L3 bypass output breakdown
L14
Phase1 inverter overvoltage
L15
Phase2 inverter overvoltage
L16
Phase3 inverter overvoltage
L17
Phase1 inverter undervoltage
L18
Phase2 inverter undervoltage
L19
Phase3 inverter undervoltage
L20
Direct voltage at output of inverter or Sine wave of Phase1 inverter distorted
L21
Direct voltage at output of inverter or Sine wave of Phase2 inverter distorted
L22
Direct voltage at output of inverter or Sine wave of Phase3 inverter distorted
L23
Overload at output of Phase1
L24
Overload at output of Phase2
L25
Overload at output of Phase3
L26
Short circuit at output of Phase1
L27
Short circuit at output of Phase2
L28
Short circuit at output of Phase3
L29
Phase 1 output fuse broken or output relay locked (will not close)
L30
Phase 2 output fuse broken or output relay locked (will not close)
L31
Phase 3 output fuse broken or output relay locked (will not close)
L34
Heat sink Phase 1 overtemperature
L35
Heat sink Phase 2 overtemperature
L36
Heat sink Phase 3 overtemperature
L37
Battery charger overtermperature
L38
Temperature probe of heat sink Phase 1 faulty
L39
Temperature probe of heat sink Phase 2 faulty
L40
Temperature probe of heat sink Phase 3 faulty
L41
Temperature probe of battery charger faulty
L42
BOOST battery 1 fuse blown
L43
BOOST battery 2 fuse blown
L44
BOOST battery 3 fuse blown
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