Salicru SLC TWIN RT series User Manual

Contents

Salicru SLC TWIN RT series User Manual Manual pdf 43 page image

43SALICRU7.2.1. Troubleshooting guide. Alarm orfault indications.Alarm or faultPossible cause SolutionCode Description of the LCD panel21 Bus Over Voltage Fault due to positive DC bus overvoltage. The UPS transfers the load over the inverter (battery mode).22 Bus Under Voltage Fault due to positive DC bus undervoltage.. The UPS transfers the load over the inverter (battery mode).23 Bus Unbalance Fault in the balancing of positive andnegative BUS. The UPS transfers the load over the inverter (battery mode).24 Bus Short BUS voltage decreases very fast. Consult with the S.T.S.25 Bus Softstart Fail Fault of the DC BUS soft start. Consult with the S.T.S.31 Output Short Circuit The UPS detects a wrong output imedance,considering a short-circuit. The UPS will make a shutdown afger five voltage cycles.32 Inv Over voltage Inverter fault due to overvoltage. The UPS transfers the load over the bypass (bypass mode).33 Inv Under voltage Inverter fault due to undervoltage. The UPS transfers the load over the bypass (bypass mode).34 Inv Softstart Fail Fault of the inverter soft start. Consult with the S.T.S.41 Output Overload Output overload.Check the load and remove the non-critical ones or if any load has failedor it is damaged. The UPS is still working normally, but it can transfer tobypass mode in case the problem persists or the load is increased.When this condition is finished the alarm is cancelled.42 Inv Overload Fault The UPS transfers the load over the bypass(bypass mode) due the inverter overload.Check the load and remove the non-critical ones or if any load hasfailed or it is damaged. The UPS will transfer the load over the inverter(battery mode), when the load is the shuitable.43 Byp Overload Fault The UPS doesn't supply output voltage onbypass or ECO modes, due the overload.Check the load and remove the non-critical ones or if any load hasfailed or it is damaged.81 Heatsink Over Temperature Heatsink overtemperature inside theequipment is too high. Check the UPS cooling and ambient temperature of the room.93 Back Feed(sólo en modelos > 3 kVA) On battery mode, bypass has voltage.Transfer to manual bypass and consult with the S.S.T..Do not touch the power supply terminals of the equipments that areconnected to an electrical installation supplied by a UPS. Even, it isdangerous with no power supply, because the equipment is an energygenset.Tabla 10. Troubleshooting guide. Alarm or fault indications.7.2.2. Troubleshooting guide. Warningindications.WarningPossible cause SolutionCode Description in the LCD panel02 Utility Abnormal Input power supply out of range. Check the AC input mains status.04 Site Wiring FaultNeutral faulto to earth detected. The alarm istriggered when there is a a voltage differencebetween the earth and neutral > 15V.Reverse the polarity of the input cables8phase and neutral). By default the detector is activated. It can bedeactivated through the control panel with LCD.11 Battery DisconnectLow battery voltage. It can be due a blownfuse, wrong connection of the batterymodule connector or fault in the connectionamong them, either in the UPS or int hemodule.Check the connection of the battery module with the UPS, if any. Forany other different incident or if the problem persists, contact with theS.T.S..12 Battery Low The UPS works on battery mode and thebatteries are depleted (low or very lows).It is a warning indication, because the remaining back up time dependson the % of connected load. Depending on the load and quantity ofexternal battery module (options), the warning can be activated whenthere is a 25% of their capacity.13 Service BatteryBattery block voltage failure detected. Thecharger has been deactivated as cautionmeasure.Consult with the S.T.S..15 Charger Fail Battery charge failure. Charger is shutdown till the next charge cycle. Consult with the S.T.S..16 Battery Over Voltage Battery overvoltage. Charger is shutdown till the next charge cycle. Consult with the S.T.S..71 EPO ActiveEPO button open or close, depending onthe selection set in the control pane. Factorypreset is open.Check the status or condition of the EPO button.