FAQ FOR PV PRODUCTS

1. What to observe if battery systems stand still for some months unused?

The battery naturally discharges during long storage. First remove the battery from the carton and check for signs of damage or moisture. If you find anything of concern, contact your local LEDVANCE service center. When everything looks good, install the battery on the grey base supplied with the BMS. Using a digital multimeter, measure the voltage at the + and - current terminals available on the top plate of the battery. Wear personal protective equipment during work and take care not to short-circuit the terminals. If the battery voltage is less than 103V the battery needs recharging. Contact your local LEDVANCE service or installer.

2. How to measure battery voltage, which result should appear, what to do if result differs?

The battery is charged to 50% during production. The voltage is then around 105 V.
If the voltage drops below 98 volts, this means that the state of charge is 10% and the battery needs to be recharged immediately so as not to irreversibly damage the cells.

3. How to re-awake battery in case of deep discharge?

If the battery remains deeply discharged for more than two weeks and the voltage drops below 98V, contact your local LEDVANCE service or installer immediately.

4. On which inverters can I use the Battery?

A document showing compatible waveguides with LEDVANCE batteries can be found at this address.

5. Can I only use a battery without PV panels?

Consult your local installer or energy supplier on this matter.

6. How should LEDVANCE batteries stay idle if not in use for a few weeks?

If the battery is not charged or discharged for an extended period, it should be disconnected from the system.

To do this, charge the battery to 100%.
Switch the battery mode to no battery.
Switch off the DC disconnect switch on the BMS panel.

7. Can LEDVANCE batteries be expanded after initial installation?

The capacity of the HV battery can be increased within 6 months of installation and at any time for a low-voltage battery. Contact your local installer or LEDVANCE service for this purpose.

8. Which maintenance tasks are required in BESS systems?

Regularly check the status of the battery in the app, analyse the energy stored in the battery - watch for any anomalies throughout the day or week.
Check DC cables and connectors - if they are loose or the insulation is damaged, there is a risk of electric shock or fire. Check it every 6 months.
Avoid low and high temperatures – it reduces SOH of battery and available energy.

9. How does a consistent high Charge/Discharge Current affect battery?

The recommended maximum charging and discharging current is 20 amps.
Increased charging and discharging rates may accelerate the rate of SOH degradation.

10. Why is my LFP battery charging slow?

Check what charge and discharge current is set in the system configuration. We recommend a value of 20 A.
Slow charging can also be caused by insufficient energy from the PV modules.

11. Which battery should I select during commissioning F2 inverters via Bluetooth?

Select the “PYLON” option. This is the same communication protocol that LEDVANCE batteries have.

12. Which connectors are installed in BMS?

BMSs manufactured from 29.09.2024 have MC4 EVO2 Staubli connectors.

13. Is Wi-Fi 5GHz ok or only 2.4GHz?

Dataloggers only connect to 2.4 GHz Wi-Fi networks.

14. How to measure BMS voltage, which result should appear, what to do if result differs?

Install the battery on the grey base supplied with the BMS. Using a digital multimeter, measure the voltage at the + and - current terminals available on the top plate of the battery. Wear personal protective equipment during work and take care not to short-circuit the terminals. The typical value for 50% charged battery should be around 105V. If the battery voltage is less than 98V the battery needs recharging. Contact your local LEDVANCE service or installer.

15. What to do in case of WLAN router exchange?

Change Wi-Fi login parameters. Select in LEDVANCE RE application: Me/Tools/Wi-Fi params/Bluetooth/scan/Wi-Fi select and password .

16. Is something to be observed in case a repeater is implemented (to increase the range and improve the signal)?

No, datalogger operation should continue.

17. How to check if Wi-Fi Signal is ok (mobile app)?

Check Wi-Fi power in your phone. The datalogger does not need a fast connection, it just needs to be stable.

18. Links to failure code description of components.

The error codes can be found in the user manuals for each inverter.
https://pv.LEDVANCE.com/en/products/info-center/technical-documentation

19. How to check if new firmware update is available?

Contact your local LEDVANCE support.

20. How to start a new firmware update?

Contact technical support.

21. What to do if LEDs on BMS blink after switch on?

Check voltages of each battery installed separately on base. If voltage is below 98V battery needs recharge.

1. Wi-Fi Dongles / Datalogger: status and failure codes LED on.

Red: Wi-Fi not selected or not working
Green & red: data being shared. Wi-Fi stick working properly
Green: data being shared. Wi-Fi stick working properly
Black – defective or unactive Wi-Fi stick

2. How to reset and try commissioning again in case of errors?

Disconnect datalogger from Application. Select your plant, then choose Equipment/Inverter/ Edit parameters and choose Delete. Now you can bind datalogger with Application as shown here: https://www.youtube.com/watch?v=qc7FfIXEz4w

3. What to do in case of WLAN router exchange?

Change Wi-Fi login parameters. Select in LEDVANCE RE application:
Me/Tools/Wi-Fi params/Bluetooth/scan/Wi-Fi select and password.

2.3.4. HOW CAN SMART+ BLUETOOTH LAMPS BE RESET?

Individual SMART+ Bluetooth lamps can be reset to factory setting and reconfigured without the entire smart home system having to be reinstalled. Just delete the lamp in your Smart Home system (see FAQ LEDVANCE SMART+ app, FAQ section SMART+ with Apple HomeKit, SMART+ with Amazon Alexa or SMART+ with Google Assistant)) or manually reset it by:

a) Resetting SMART+ Bluetooth RGBW lamps:
To reset a SMART+ Bluetooth RGBW lamp to factory setting, switch it ON for three seconds then OFF for three seconds five times in succession. When switched on again, the lamp flashes blue, green and red as confirmation and can now be incorporated in a smart home system again.

b) Resetting SMART+ Bluetooth Tunable White lamps:
To reset a SMART+ Bluetooth Tunable White lamp to factory setting, switch it ON for three seconds then OFF for three seconds five times in succession. When switched on again, the lamp flashes two times cold white and warm white as confirmation and can now be incorporated in the smart home system again.

c) Resetting SMART+ Bluetooth Dimmable lamps:
To reset a SMART+ Bluetooth Dimmable lamp to factory setting, switch it ON for three seconds then OFF for three seconds five times in succession. When switched on again, the lamp dims three times up and down as confirmation and can now be incorporated in the smart home system again.

4. Links to failure code description of components.

The error codes can be found in the user manuals for each inverter:
https://pv.LEDVANCE.com/en/products/info-center/technical-documentation

5. How to check if new firmware update is available?

Contact technical support. (End customer does not have the access)

2.4.2. WHAT CAN I DO IF MY PROBLEM IS NOT SOLVED BY THE PREVIOUS ANSWERS?

For additional help, please check out the respective troubleshooting FAQ section (LEDVANCE SMART+ app, SMART+ with Apple HomeKit or SMART+ with Google Assistant or SMART+ with Amazon Alexa). If your question is still not answered, please contact our support team directly. Our support team will be pleased to provide further assistance.

6. How to start a new firmware update?

Contact technical support. (End customer or installer will not know which one is the latest)

7. What fluctuations in frequency can an inverter handle?

It depends on the selected grid code and the tolerances associated to it
For more information, please contact your technical support who can provide you more detailed information

8. Where can installer select grid code?

During the quick setting process, the grid code will be requested
Or by going in the app to (Via Bluetooth): Me / tools / local parameters settings / select the inverter SN / setting / grid parameter setting
Remote operation not possible for end customer

9. Will installers who choose LEDVANCE be able to receive training and certification from LEDVANCE?

Yes, contact your local LEDVANCE team for training.

10. Do LEDVANCE inverters have integrated back-up function?

Yes. It is visible on the inverter and marked as “AC-Back up”.

2. Which DC connectors should I use to connect the modules?

MC4 Evo2 from Staubli
https://www.staubli.com/content/dam/ecs/technical-documentation/assembly-instructions/RE/PV_SOL-LVDC-de.pdf

3. What is maximum permitable load on surface of module?

Depending on the length of the module

Length ≤ 2300mm: up to 5400 Pa on the front side; up to 2400 Pa on the back side.
2300 < Length ≤ 2500mm: up to 3600Pa on the front side; up to 2400 Pa on the back side.