Riello UPS Sentinel Dual (High Power) (3.3 - 10 kVA) - Manual (Page 82)

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TROUBLESHOOTING
 Active controls: indicate the presence of an active remote control.
CODE DESCRIPTION
C01 Shutdown remote control
C02 Load on bypass remote control
C03 Startup remote control
C04 Battery test underway
LOCK
LOCK signals are usually preceded by an alarm signal and, due to their significance, cause the inverter to
shut down and the load to be powered via the bypass line (this procedure does not include locks from strong
and persistent overloads or locks due to short circuits).
CODE DESCRIPTION
L03 Auxiliary power supply not correct
L04 Dissipators overtemperature
L05 Temperature sensor1 faulty
L06 Temperature sensor3 faulty
L07 Temperature sensor2 faulty
L10 Input fuse broken or input relay locked (does not close)
L13 Condenser precharge failed
L20 Condenser bank undervoltage
L21 Condenser bank overvoltage
L31 Bypass fault
L40 Inverter overvoltage
L41 Direct voltage in output
L42 Inverter voltage not correct
L43 Inverter undervoltage
L50 Overload: load > 103%
L51 Overload: load > 125%
L52 Overload: load > 150%
L53 Short circuit