Riello UPS Sentinel Dual (Low Power) (1000 - 3000 VA) - Manual (Page 29)

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¾ Active commands: Indicates the presence of an active remote command.
CODE DESCRIPTION
C01 Remote control 1 (Switch Off)
C02 Remote control 2 (load on bypass or manual bypass command)
C03 Remote control 3 (Switch On/Off)
C04 Battery test in progress
L OCK
LOCK alerts are normally preceded by an alarm signal and their scale leads to the powering-off of the inverter with the
load being powered by the bypass line (this procedure is excluded for locks due to serious, persistent overloads and
short circuits).
CODE DESCRIPTION
L02 Control card is not inserted correctly
L03 Incorrect auxiliary power supply
L04 Dissipator over temperature
L05 Temperature sensor1 faulty
L07 Temperature sensor2 faulty
L10 Input fuse broken or input relay stuck (does not close)
L11 Input relay faulty
L13 Capacitor pre-charge failed
L20 Capacitor bank undervoltage
L21 Capacitor bank overvoltage
L40 Inverter overvoltage
L41 Continuous output voltage
L42 Incorrect inverter voltage
L43 Inverter undervoltage
L50 Overload: load > 103%
L51 Overload: load > 110%
L52 Overload: load > 150%
L53 Short circuit