Lock:
indicates that the UPS or one of its components has been locked and is normally preceded by an alarm
signal. In the event of a fault with and consequent lock of the inverter, it will switch off and the load will be
powered by the bypass line (this procedure is excluded for locks due to serious, persistent overloads and short
circuits).
CODE
DESCRIPTION
L01
Incorrect auxiliary power supply
L02
Disconnection of one or more internal cables
L03
Input fuse of Phase 1 blown or input static switch faulty (does not close)
L04
Input fuse of Phase 2 blown or input static switch faulty (does not close)
L05
Input fuse of Phase 3 blown or input static switch faulty (does not close)
L06
Positive stage BOOST overvoltage
L07
Negative stage BOOST overvoltage
L08
Positive stage BOOST undervoltage
L09
Negative stage BOOST undervoltage
L10
Fault bypass static switch
L11
L1 bypass output locked
L12
L2 bypass output locked
L13
L3 bypass output locked
L14
Phase 1 inverter overvoltage
L15
Phase 2 inverter overvoltage
L16
Phase 3 inverter overvoltage
L17
Phase 1 inverter undervoltage
L18
Phase 2 inverter undervoltage
L19
Phase 3 inverter undervoltage 3
L20
Direct voltage at inverter output or distorted Phase 1 inverter sine wave
L21
Direct voltage at inverter output or distorted Phase 2 inverter sine wave
L22
Direct voltage at inverter output or distorted Phase 3 inverter sine wave
L23
Overload on Phase 1 output
L24
Overload on Phase 2 output
L25
Overload on Phase 3 output
L26
Short circuit on Phase 1 output
L27
Short circuit on Phase 2 output
L28
Short circuit on Phase 3 output
L29
Output fuse of Phase 1 blown or output remote control switch locked (does not close)
L30
Output fuse of Phase 2 blown or output remote control switch locked (does not close)
L31
Output fuse of Phase 3 blown or output remote control switch locked (does not close)
L34
Phase 1 heat sink overtemperature
L35
Phase 2 heat sink overtemperature
L36
Phase 3 heat sink overtemperature
L37
Battery charger overtemperature
L38
Faulty Phase 1 heat sink temperature sensor
L39
Faulty Phase 1 heat sink temperature sensor
L40
Faulty Phase 1 heat sink temperature sensor
L41
Faulty battery charger temperature sensor
L42
Battery fuse of BOOST 1 blown
L43
Battery fuse of BOOST 2 blown
L44
Battery fuse of BOOST 3 blown