MPPT solar charger manual 6. Operation ............................................................................................................................ 39 6.1. Start up ..................................................................................................................... 39 6.2. Battery charging ........................................................................................................... 39 6.3. Automatic equalization .................................................................................................... 40 6.4. Lithium batteries ...........................................................................................................
40 6.5. Shutdown and restart procedure ........................................................................................ 40 6.6. Maintenance procedure ................................................................................................... 41 7. Monitoring ........................................................................................................................... 42 7.1. LED indications ............................................................................................................ 42 7.2. Error codes ................................................................................................................. 43 7.3.
Monitoring via the VictronConnect app ................................................................................. 43 7.3.1. VictronConnect app status screen ............................................................................ 43 7.3.2. VictronConnect app history screen ............................................................................ 44 7.3.3. VictronConnect app error reporting ........................................................................... 45 7.4. Monitoring via a GX device and VRM ................................................................................... 45 8.
Troubleshooting .................................................................................................................... 47 8.1. Solar charger is damaged ................................................................................................ 47 8.2. Solar charger is unresponsive ........................................................................................... 47 8.3. Solar charger is off ........................................................................................................ 48 8.3.1. PV voltage too low .............................................................................................. 48 8.3.2.
Settings being edited on an external display ................................................................. 49 8.3.3. Disabled in the settings ......................................................................................... 50 8.3.4. Disabled by remote or BMS .................................................................................... 50 8.3.5. Low lithium battery temperature ............................................................................... 50 8.4. Solar charger is externally controlled ................................................................................... 50 8.5.
Batteries are not charged ................................................................................................. 51 8.5.1. Battery is full ..................................................................................................... 51 8.5.2. Battery not connected .......................................................................................... 52 8.5.3. Reverse battery polarity ........................................................................................ 53 8.5.4. Battery settings too low ......................................................................................... 53 8.5.5.
PV voltage too high ............................................................................................. 54 8.5.6. Reverse PV polarity ............................................................................................. 54 8.6. Batteries are undercharged .............................................................................................. 55 8.6.1. Insufficient solar supply ......................................................................................... 55 8.6.2. DC load too high ................................................................................................ 56 8.6.3.
Battery cable voltage drop ..................................................................................... 56 8.6.4. Temperature compensation setting incorrect ................................................................ 57 8.6.5. Temperature difference between solar charger and battery ................................................ 57 8.7. Batteries are overcharged ................................................................................................ 58 8.7.1. Battery voltage setting too high ................................................................................ 58 8.7.2.
Battery charge voltage settings too high ...................................................................... 58 8.7.3. Battery unable to deal with equalisation ...................................................................... 58 8.7.4. Battery old, faulty or undersized ............................................................................... 58 8.8. Solar charger not achieving full output .................................................................................. 59 8.8.1. PV yield lower than expected .................................................................................. 59 8.8.2.
Maximum output power relates to battery voltage ........................................................... 60 8.8.3. Temperature above 40°C ....................................................................................... 61 8.8.4. PV connections burned or melted ............................................................................. 61 8.9. Communication Issues .................................................................................................... 61 8.9.1. Bluetooth ......................................................................................................... 61 8.9.2.
VE.Direct port .................................................................................................... 62 8.9.3. VE.Smart Networking ........................................................................................... 62 8.10. Miscellaneous issues .................................................................................................... 63 8.10.1. Unable to operate as a DC-DC charger or power supply ................................................. 63 8.10.2. Interrupted firmware update .................................................................................. 63 8.10.3.
Ground current ................................................................................................. 63 8.10.4. Programmable relay issues ................................................................................... 63 8.10.5. PV Short relay reset procedure .............................................................................. 63 8.11. Error code overview ...................................................................................................... 66 8.11.1. Error 1 - Battery temperature too high ....................................................................... 66 8.11.2.
Error 2 - Battery voltage too high ............................................................................. 66 8.11.3. Error 17 - Solar charger overheated despite reduced output current .................................... 66 8.11.4. Error 18 - Solar charger over-current ........................................................................ 66 8.11.5. Error 20 - Maximum bulk time exceeded .................................................................... 66 8.11.6. Error 21 - Current sensor issue .............................................................................. 66 8.11.7.
Error 26 - Terminal overheated ............................................................................... 66