AZ Solar Junkie
Maricopa, AZ
Yeah I noticed that too. It seems based on reports from others that the newest version of the manual is correct.
EG4 6000 XP - Clarification on "RECOMMENDED MAXIMUM SOLAR INPUT - 10,000W"
- Thread starter itech20
- Start date
So... Is it safe to say that a reasonable approach with these inverters is for each string to be somewhere around 350V, 11.5 amps? In other words, try to stay well under the voltage limit (to protect the unit) but not so far under (say, under about 235V) that you start to hit the amp max? These inverters seem to really like the Goldlocks middle.
I have two 6000xps. One has 16 Philadelphia Solar 445 watts, 8 on each MPPT. 310 / 330v @ 11.5amps equals 3500 watts per MPPT. On rainy days when the sun comes out of a cloud it would get almost to 4000 watts per MPPT. No problems at all. My second 6000xp only has 3 545 watts Boviett Solar Panels. 120 / 125v @ 12.4amps I've seen 1450 - 1650 watts, Both working perfectly at this time.
If I follow through with my current plans, I will have another data point here. I intend to have at least one 7s2p string of this Silfab part:
signaturesolar.com
The Isc is 11.36 and the Ipmax is 10.77.
My logic, to this point has been that 11.36 * 2 = 22.72 which is less than 25, the stated amperage limit.
@dougadvrider's experience described earlier in the thread seems to imply that his panels in a 2p configuration are somehow operating significantly above 2x the Isc, and that is one working theory about why he is getting these errors. (That is, based on wattage and voltage calcs, his string seems to be going above 25 amps.)
I don't know if he and @EG4_Jared have arrived at any firmer conclusion on root cause here. (And it sounds as if he may be planning to avoid any real risk of hitting the amp limit by eliminating his parallel strings.)
Preorder - 9.90kW Pallet - Silfab Solar 380w Mono Solar Panel (Black) | Manufactured in USA | SL-380 HC | Full Pallet (26) - 9.90kW Total
Signature Solar provides solar panels, off-grid solar systems, grid-tie, and hybrid systems. Quality solar inverters, bifacial solar panels, complete solar kits, solar batteries. Featuring brands such as EG4 Electronics with their solar battery, LifePower4 and EG4 LLifePower4 and EG4 LL
signaturesolar.com
The Isc is 11.36 and the Ipmax is 10.77.
My logic, to this point has been that 11.36 * 2 = 22.72 which is less than 25, the stated amperage limit.
@dougadvrider's experience described earlier in the thread seems to imply that his panels in a 2p configuration are somehow operating significantly above 2x the Isc, and that is one working theory about why he is getting these errors. (That is, based on wattage and voltage calcs, his string seems to be going above 25 amps.)
I don't know if he and @EG4_Jared have arrived at any firmer conclusion on root cause here. (And it sounds as if he may be planning to avoid any real risk of hitting the amp limit by eliminating his parallel strings.)
Due to availability I ended up cancelling that order and placed an order o qty 16 of these Boivet panels. I’m live now with these panels with 2 strings of 8. I’ve been observing somewhere around 300-330 volts and amperage peaking at 11.5 amps. I’ve seen power as high as 7.5kW. Pretty sure I’m getting some current boost from the bi-facial side of the panels.
Pretty cool to see my system producing energy.
Pretty cool to see my system producing energy.
Daniel Beardsley
New Member
- Joined
- Jan 29, 2021
- Messages
- 52
@itech20 and @EG4TechSolutionsTeam -- Did you ever get to the bottom of this and could you describe the behavior you were seeing? I'm interested in what was learned.
To be clear, I don't yet have a system set up that challenges the 10 kW limit on a single 6000 XP. In fact, based on the uncertainty, I decided to reconfigure my plans and use a second parallel inverter. I'll now have only 6 kW on each inverter, with no parallel strings.
So, I'm afraid I'm unlikely to bring any clarity to this situation through personal experience.
meviloria
New Member
Hi, I sent this as a DM as well. I’m having the same issue but the fault seems to be caused by some tracking/arcing inside the inverter when the DC amps go over 15A on the PV section.
Since I bought my inverter almost a year ago, I haven't been able to put 2 strings in parallel because I get PV shorts after the sun brings the amperage up to aprox 15 amps around 10:30 am.
The PV MPPTs work fine in parallel when under 15 amps but as soon as it starts going above that, I notice crackling/sizzling sounds coming from inside the inverter on the right side by the PV internals, I'm not sure if it's coming from the input block, the MPPT or the PV disconnect switch but it's certainly in the area and after a few seconds it shorts out and restarts the PV inputs.
I have 1 string of 9 panels in series that works fine without a problem on pv1, but the 2 strings of 5 panels in parallel on pv2 are a big issue for me.
My understanding is that the 6000XP is able to handle less then 25 amps per MPPT fine even if it gets some clipping above 17 amps but I'm not even getting above 15amp so it really sucks, also it should not fault or trip until it gets to 25A.
Please help and contact me
PWH
New Member
Did you get this issues resolved?
I'm having the exact same issue. I get the E024 PV Short fault when my PV2 input (8x460w in 4s2p) approaches 3000w and 16A. Inverter makes a high pitched whining sound and then faults, resets and repeats.
Tried switching PV inputs but get the same error whether on PV1 or PV2. If I disconnect either half of the array everything works fine.
PWH
New Member
Jinko 460w
IMP: 10.62A
VOC : 51.90V
ISC : 11.35A
Array is 4S2P
The 024E PV Short error occurs when the array output hits 16A. Last fault was 2950W and 184.1V.
Inverter makes a whining noise at these levels which can be seen here
Thanks for any help!
TM48
Solar Wizard
I would try putting them all in series and see if the issue goes away. At 10.62 for imp being that your parallel you are close to the hard limit of 25 amps isc. There may be cases were clouds go away and imidiate sunlight shines on the panels. Dependeing on the temperature you could easily reach the hard limit. I have 8 540watts panels with an imp of 10.4 and I've seen them go up to 13amps on certain situations. I'm in the tropics so temperature will not happen, but for someone in a colder place that situatiin may worsen.
PWH
New Member
Array voltage would significantly exceed MPPT limit especially in winter months.
PWH
New Member
Array voltage would exceed mppt limit if I put them all in series as I'm in a cold climate. This fault always happens when this array hits 16A so I'm well below the 25A hard limit.
I'm suspecting it's a bad MPPT controller board but not sure how I can verify that.
TM48
Solar Wizard
TM48
Solar Wizard
Be sure to use a meter and measure the open circuit voltage unloaded. If you just look at the software your viewing it after the SCC has throttled the voltage to arrive at the max power point.
PWH
New Member
Yes I've run all the numbers...7 in series would still put me over max voltage due to cold temps here so I'm down to 6 which sacrifices almost a 1000w of potential power. Again, voltage and amps are all well within spec when I'm getting this fault (180-190v, 16-17a).
Thanks for the suggestion.
42OhmsPA
Who likes Electrical Gremlins?
PWH
New Member
Good point! Yes I've used a meter to verify amps and voltage coming off the array and there's both well within spec. It's really got me puzzled as to why this is occurring. Have switched the PV inputs into the inverter but still get the same PV Short Error with this specific array. All wiring has been checked for shorts. Typically happens around 10:30am on fully sunny days when PV array hits around 16-17A coming into the inverter.
Thanks for your suggestions.
TM48
Solar Wizard
That doesn't sound right that six is too much. 6 x 52v is only 312v. I don't think absolute zero would put you over. (just kidding) How are you calculating it?
Last edited:
PWH
New Member
7 in series produces a temperature compensated array voltage of 454v at -40c which is my winter temps.
Similar threads
