FragtioN

Hi @stefan44 Oh, whoops! OK I've added price to the listing - Thanks!!

This is a 6 Kva, Low frequency (big, sturdy transformer), pure sine wave inverter. Price: R6500 Condition: Refurbished Location: Table View, Cape Town A Proudly South African Product Unit was recently serviced & refurbished. Fans, power board, and front panel were all replaced as new, and the unit was also fitted with the MicroCare comms port and comes with the WiFi comms module for remote monitoring & management. In good working condition. Overview Microcare Inverters are designed to obtain optimum inverted AC power from an installed DC Solar System. Using the latest in-house designed software the Microcare Inverter is able to improve the automatic change-over from the grid to the inverter allowing for an uninterrupted power supply to a range of applications from a sensitive server room to industrial machines. Microcare bi-directional inverters are short circuit proof, and our built in lightning protection offers safety not seen in a pure sine wave inverter previously. Manufactured and serviced in the Republic of South Africa. Features LCD Display Low idle current High Surge capacity for motor start Timed Overload capacity with Auto-Shutdown 3 Attempt Auto Restart Protection against short circuits Built in battery charger Locally manufactured Minimum Service Turnaround Fan cooling for optimum performance Audible Buzzer indicating faults and overload conditions Specifications Capacity: 5kW Nominal Voltage: 24Vdc Acceptable Voltage Range: 20 30Vdc Max Input Amps: 250 Standby Power Manual Mode: 60watts Standby Power Search Mode: 20watts Voltage: 220Vac Amps: 22amps Why you should consider buying MICROCARE products: Proudly South African with over 20 years of manufacturing and thousands of units having been sold locally and internationally. Service and repair of the inverters at a minimum cost due to local manufacture. MICROCARE inverters are bi-directional allowing for the plugging in of either a generator or Eskom, allowing batteries to be charged. The technology has been upgraded and the current range of inverters use High Pulse Width Modulation (PWM) to regulate the output of the inverter. The updated circuitry allows for smaller units and more cost-effective quality performance. The inverters are PURE SINE WAVE with very low distortion and good regulation. The units incorporate battery low, overload, lightning protection, load sensing and LCD display as standard. The 5kw 24v Microcare Pure Sine Wave Inverter delivers clean, true sine wave output power (Mains outlet waveform, suitable for ALL appliances including air-conditioners, home appliances, consumer electronics and office equipment. Overview : 1. Multiple microprocessor design base. 2. Compatible with both linear and non-linear loads. 3. 24-hour operation 4. DC start and automatic self-diagnostic function. 5. THD less than 3% (total harmonic distortion) that is essentially the same as utility- supplied grid power. Thus it is compatible with all AC electronic devices. 6. Hi Power charger. 7. High efficiency design to save electricity. 8. Low heat dissipation in long-time operation. 9. Designed to operate in harsh environments. 10. Wall mounted. 11. Designed to operate on a 24v battery system. 12. Suitable for ambient temperatures between 0 - 40 'C. 13. Suitable for a generator or 220 Vac system. 14. Built-in battery charger. The manufacturer's recommended selling price is R19950.00 so you will save a considerable amount buying the item used from me Shipping: Collection in Table View CPT (or your own courier to collect)

Bump. Instructions still there but no link to activate

No feedback from the manufacturer/distributors? Anything from Timothy yet perhaps, @MAZ? It seems awfully strange that we still don't know what's going on here.

Nice info here thanks for sharing. Ok so you saying the firmware update still *doesn't* solve this warning 29 ? ... Anyone else got feedback on this? By this point I can't help but begin to wonder if wea are dealing with a manufacturing/hardware defect?? No feedback or solutions have been convincing as yet Good to know this can be done! .. But that firmware selection is hela cryptic... how were you able to know with enough confidence which is the right one to choose? I'm not ready to take a chance unless I know a specific firmware is intended for the device and newer than the one already installed? You can say that again!!

I'm still experiencing the issue on my Dad's inverter and we're still battling to get hold of the installer. I was hoping to get one of these for myself as I was really impressed by first impression and am looking to upgrade from my Meanwell 24V inverter to a 48V hybrid, but am thinking twice now if it's going to be this difficult to upgrade the firmware

Apart from what seems to be an issue with balancing & fusing of individual cells for each string, I really like the simplicity of this design! namely having a rack/cabinet with slats/shelves where you just slide in trays of the 18650's lying in strips of conduit.. I'm looking for something cheap and easy to maintain and this seems like a strong contender, as the usual 18650 cell spacers cost a fortune to import at the moment and make me question if the DIY route is even still worth it versus the price of just buying a complete lifepo battery... Have you made any changes to this, particularly for making it easier to balance the cells? The way you have it set up at the moment, there should be a conductor between each series connection of where the cells touch, if the cells were supposed to be properly balanced with a BMS... which would be an ideal place for fusing as well. Perhaps interrupting each section with some kind of spacer with spring contacts on each side which connect with a fuse wire to that conductor where the balance lead connects Maybe you could use another strip of trunking, but flipped 90 degrees (so vertically on the tray rather than horizontally) between each block of parallel cells... the "spring tension" of each wall of the trunking could help secure/snap the batteries in place although it would need to be pretty thick trunking to work properly. I saw someone use paper fasteners (eg https://www.croxley.co.za/product/croxley-25mm-paper-fasteners-pack-of-100s/) (which you can also buy in bulk for cheap) as battery contacts, which seems like a brilliant idea. you could then just drill some holes in the sides of the trunking for the fasteners which then connect to the fuses/buss bars. Pop rivets could also work? It seems like adding more cost & complexity to the system and thus more points of potential failure as well, but technically it would be more vital from a safety point of view, to ensure automatic BMS functionality in place regardless, IMO See: https://www.youtube.com/watch?v=wwD5b7Kb4xs And: https://www.youtube.com/watch?v=bYcRAXrCt3I , https://www.youtube.com/watch?v=zawS3wwSgvM So yeah, if we can just find a better way to fuse & balance on a cell-level then this design can be a winner By the way, what are you using at the ends of each trunking to press the batteries together? Would love some more details, close-ups, how you do your wiring etc.. Thanks for sharing

Thanks for info! I'm still waiting for my installer to get back to me and will take it from there. What do you mean by "press on installers button"?

Hi Nick, I've got the same setup and see the same symptoms. Did you manage to figure this mystery out? Is it normal or what? Thanks

No, my installer wanted me to install SOLARMAN app, and I couldn't get the inverter to adopt in that app. I then managed to get it to work on the Luxpower app instead on my own (he's been too busy to help me as its christmas time...), but have no way of installing a firmware update from there. I don't think my installer knows what he's doing and now that I need the firmware update, I don't have proper access to my own equipment.. ffs. Apparently need to email luxpower. Really??..

EPS Voltage refers to output voltage from the inverter. The EPS Voltage High error problem occurs for me when the inverter switches from Grid to battery backup. The inverter voltage can be set to either 208V, 220V, 230V, or 240V. I had it "correctly" set to 230V in accordance with nominal grid spec, but it seems this error occurs regardless of what the voltage is set to? Also, it seems to be correlated with load on the inverter. If there's no load, the error is easy to reproduce by simulating a grid outage. As soon as I put a fair amount of load (a 1000W hairdryer, for instance), then the inverter fails over to battery reliably. I don't really see what the input grid voltage has to do with any of this, unless I'm missing something of there's been a bit of a misunderstanding.. but I guess any tips are welcome in this struggle, lol

I'm still experiencing this EPS Voltage High error, even on 220v. Anyone else got similar issues? What's the solution for this?

I used "the generic one", INF01, as per https://www.youtube.com/watch?v=PPT1bY3mrXc . I think that belongs to Infinity Innovations Ltd though, so unlikely to be an official "generic" That being said, it worked, but I'd like to get installer-level permissions/control, to update firmware etc.. before contacting luxpower via email as recommended above. Perhaps one of you is an installer and wouldn't mind helping me out loading my inverter onto your account? Any other clues, please share xD

How do you update the firmware?? 😐 mine isn't charging when in Lithium mode. just realized my installer set it up as lead-acid despite it being a lithium battery, and after correcting that and establishing comms with the battery, the inverter isn't charging the battery on mains despite correct settings

Similar problem here. I'm on cbaa-121613. Is this the latest? How can we upgrade, without bringing the installer into the equation? I bought this equipment so should be able to do this myself... 🤔?