Kaco blueplanet 15.0 TL3 Operating Instructions Manual

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Kaco blueplanet 15.0 TL3 Operating Instructions Manual Manual pdf 48 page image

ENENMaintenance/TroubleshootingPage 48 KACO Operating Instructions blueplanet 15.0-20.0 TL39.4 Shutting down for maintenance and troubleshootingDANGERLethal voltages are still present in the terminals and cables of the inverter even after theinverter has been switched off and disconnected!Severe injuries or death will occur when touching the cables and terminals in the inverter.When there is solar radiation, DC voltage will be present at the open ends of the DC cables. Arcingmay occur if the DC cables are disconnected while they are still live.Only appropriately qualified and authorised electricians may open and maintain the inverter.› Observe all safety regulations and the current technical connection specifications from the relevantpower supply company.› Disconnect the AC and DC sides.› Secure the AC and DC sides from being inadvertently switched back on.› Do not touch the exposed ends of the cables.› Avoid short circuits.› Do not open the inverter until these two steps are complete.› After shutdown, wait at least five minutes before working on the inverter.CAUTIONDestruction of the DC connectionThe connection terminals can be destroyed by arcing if disconnected while still live.› It is absolutely essential that the shutdown sequence is carried out in the correct order.Shutting down the inverter1. Switch off the grid voltage by turning off the external circuit breakers.2. Disconnect the PV generator using the DC isolator switch.DANGER! The DC cables are still live!" Ensure that there is no voltage present on the grid connection terminals.9.5 Check or replace DC surge protection deviceDANGERRisk of fire if the fuse holder is disconnected in a live state.The connection terminals and fuse holder can be destroyed by arcing if disconnected or if the fusesare removed.Shutdown sequence:1. Switch off the grid voltage by turning off the external circuit breakers.2. Switch off the PV generator using the DC isolator switch.DANGER! The DC cables are still live!3. Check that there is no current in any of the DC cables using a clip-on ammeter.4. Only open the fuse holder once you have established that there is no current in the DC cables.5. Ensure that there is no voltage present on the grid connection terminals.