Growatt SPF 5000 ES - 5108 Bus voltage high(Fault)

[elihelou]

Hi Everyone,

This morning while the sun was not up yet and the PV were barely picking up I got an error 5108 or 08 Bus voltage high (Fault) while charging from the utility. I restarted the inverters and everything worked out fine.

The setup is as per the following them as per the following:

• 2x SPF 5000 ES running in parallel (firmware: one inverter is 040/041-05-701 and the other 040/041-06-104)
• 10x Longi LR5-72HPH-545M (each 5 panels to an inverter)
• 12x Lento lead acid LSTB-22000 (12V 200Ah) - installed each 4 in series (48V 200Ah) and then the 3 series in parallel resulting in a setup of 48V 600Ah -> 28.8 Kwh
• The whole system is also connected to the utility as well.

My settings are as per the following:

Program	Value
1	SUB
2	70
3	APL
4	DIS
5	USE
6	DIS
7	DIS
8	230
9	50
10	4
11	30
12	46
13	54
14	SNU
15	ON
16	ON
17	ON
18	DIS
19	56.8
20	51
21	45
23	PAL
28	1
37	2022
38	5
39	18
40	10
41	0
42	0
43	DIS
44	58.4
45	60
46	120
47	30
48	OFF
49	0
50	0000

What could be the issue?

 

[mrzed001]

Since it is an MPP Solar clone:

MPP solar LV6048 bus voltage is to high

Hi to everyone. I'm Constantine. I'm new to the forum and to solar. I am trying to finally back feed to the grid, but this fault code came up(08 buss voltage is too high). How do I fix this?

diysolarforum.com

 

[BeirutSolar]

backfeed to the load side, since in Lebanon most generators piggy back on the EDL Neutral (common), and most buildings don't have seperate earths, then only path for leakage is the Neutral side. keep us posted.

 

[BeirutSolar]

Hi Everyone,

This morning while the sun was not up yet and the PV were barely picking up I got an error 5108 or 08 Bus voltage high (Fault) while charging from the utility. I restarted the inverters and everything worked out fine.

The setup is as per the following them as per the following:

• 2x SPF 5000 ES running in parallel (firmware: one inverter is 040/041-05-701 and the other 040/041-06-104)
• 10x Longi LR5-72HPH-545M (each 5 panels to an inverter)
• 12x Lento lead acid LSTB-22000 (12V 200Ah) - installed each 4 in series (48V 200Ah) and then the 3 series in parallel resulting in a setup of 48V 600Ah -> 28.8 Kwh
• The whole system is also connected to the utility as well.

My settings are as per the following:

Program	Value
1	SUB
2	70
3	APL
4	DIS
5	USE
6	DIS
7	DIS
8	230
9	50
10	4
11	30
12	46
13	54
14	SNU
15	ON
16	ON
17	ON
18	DIS
19	56.8
20	51
21	45
23	PAL
28	1
37	2022
38	5
39	18
40	10
41	0
42	0
43	DIS
44	58.4
45	60
46	120
47	30
48	OFF
49	0
50	0000

What could be the issue?

your battery bank is only 14.4kWh....irrelevant to your question, yet just a heads up clarification.

 

[dianea]

I have that unit and can get the error by switching a generator into the output side. It may sync and not even complain... The bus will absorb the excess current and try to do something with it, like charge the battery. If the battery is already charged, the voltage may hit alarm.

 

[elihelou]

backfeed to the load side, since in Lebanon most generators piggy back on the EDL Neutral (common), and most buildings don't have seperate earths, then only path for leakage is the Neutral side. keep us posted.

Hi and thank you for your feedback.....it turns out that the cause of the problem was that one of the panel's cable got disconnected and caused this issue....when I reconnected the panels the issue was resolved after I had send the inverter to the shop for maintenance and a fuse needed to be changes.

@BeirutSolar can you please share your contact details by private message, i'd like to get in touch

 

[engineer.hassan]

Hi and thank you for your feedback.....it turns out that the cause of the problem was that one of the panel's cable got disconnected and caused this issue....when I reconnected the panels the issue was resolved after I had send the inverter to the shop for maintenance and a fuse needed to be changes.

@BeirutSolar can you please share your contact details by private message, i'd like to get in touch

Hello Elie,

I have the same problem that when the utility is ON and the battery is full, I got the error 08.
I am getting this error usually about 11:00 pm when we have utility power, which means the battery is full.
During the say time I don't got any error.
Please can you let me know how your solved this problem.

Best Regards,

 

[BeirutSolar]

Hello Elie,

I have the same problem that when the utility is ON and the battery is full, I got the error 08.
I am getting this error usually about 11:00 pm when we have utility power, which means the battery is full.
During the say time I don't got any error.
Please can you let me know how your solved this problem.

Best Regards,

Elie's problem as it turns out, was a faulty connection, which might not be the case for you. i've come across error 08 on many occasions due to OV. solution would be to keep a minimum load connected. Some installers (especially in Lebanon) connect the inverter after a transfer switch which transfers all the load from the inverter to direct connection & thus bypassing the inverter. in that case, the inverter would be merely charging the batteries, which might reach a full charge very quickly, and overpass the set 58.4V for lead acid causing the 08 to flash briefly.
you could pass the entire house/facility through the inverter (without transfer switch) hence, a load would constantly be present on the inverter & avoid this problem alltogether.

 

[neoman22]

Hello Elie,

I have the same problem that when the utility is ON and the battery is full, I got the error 08.
I am getting this error usually about 11:00 pm when we have utility power, which means the battery is full.
During the say time I don't got any error.
Please can you let me know how your solved this problem.

Best Regards,

Hi Elie,

I am having the same problem you were having 08 Fault when the Electricity from the grid EDL and the battery is full

how did you solve this problem

Thank you and Best Regards

 

[neoman22]

Hello Elie,

I have the same problem that when the utility is ON and the battery is full, I got the error 08.
I am getting this error usually about 11:00 pm when we have utility power, which means the battery is full.
During the say time I don't got any error.
Please can you let me know how your solved this problem.

Best Regards,

hi

Elie's problem as it turns out, was a faulty connection, which might not be the case for you. i've come across error 08 on many occasions due to OV. solution would be to keep a minimum load connected. Some installers (especially in Lebanon) connect the inverter after a transfer switch which transfers all the load from the inverter to direct connection & thus bypassing the inverter. in that case, the inverter would be merely charging the batteries, which might reach a full charge very quickly, and overpass the set 58.4V for lead acid causing the 08 to flash briefly.
you could pass the entire house/facility through the inverter (without transfer switch) hence, a load would constantly be present on the inverter & avoid this problem alltogether.

Hi Sir,

I am facing the same problem as Elie but only when i the electricity comes suddenly from EDL passing to the inverter my inverter is connected to all the house i have solar panels no problem with the pv and i have big generator 135 kva also no problem only when the electricity comes from the EDL some times the inverter give fault 8 sometime not. this happens mainly in the early morning when and mainly when the batteries are full my batteries are 12V-200AMP deep cycle tubular C20. please also note that we installed a ground in the bldg. 3 electrodes inserted in the ground and a wire cable connected to them going up to the panels at the rooftop.
Please if you can help me solve this issue

 

[bassam.rechdan]

my client had the same issue yesterday. It might be that EDL inrush start up is causing this. i'm thinking of installing an ON-delay timer that might lead to a better regulated input instead. what do u think?

 

[Mcn3n]

Hi Everyone, I just joined this forum, and I'm from Lebanon too, now as I am facing the same issue as:

Hi Everyone,

This morning while the sun was not up yet and the PV were barely picking up I got an error 5108 or 08 Bus voltage high (Fault) while charging from the utility. I restarted the inverters and everything worked out fine.

The setup is as per the following them as per the following:

• 2x SPF 5000 ES running in parallel (firmware: one inverter is 040/041-05-701 and the other 040/041-06-104)
• 10x Longi LR5-72HPH-545M (each 5 panels to an inverter)
• 12x Lento lead acid LSTB-22000 (12V 200Ah) - installed each 4 in series (48V 200Ah) and then the 3 series in parallel resulting in a setup of 48V 600Ah -> 28.8 Kwh
• The whole system is also connected to the utility as well.

My settings are as per the following:

Program	Value
1	SUB
2	70
3	APL
4	DIS
5	USE
6	DIS
7	DIS
8	230
9	50
10	4
11	30
12	46
13	54
14	SNU
15	ON
16	ON
17	ON
18	DIS
19	56.8
20	51
21	45
23	PAL
28	1
37	2022
38	5
39	18
40	10
41	0
42	0
43	DIS
44	58.4
45	60
46	120
47	30
48	OFF
49	0
50	0000

What could be the issue?

I have 10 * 595 Watt Canadian solar panels, 8 * 300 AH batteries (gel batteries imported from China), and the Growatt SPF 5000 ES inverter.
I saw what @BeirutSolar said about the faulty connection and the switch and I don't have that. Still, I have an additional error that appears more than the 08, which is the 03 (battery voltage is too high), and this only happens when the EDL electricity, otherwise everything works fine.
It started with whenever the EDL is ON, especially at night (when there is no other source to charge the batteries than EDL), the inverter reads that the batteries are overcharged (60+ V) and then turns off, so I changed the setting of 01 from SUB to SBU, setting the b2AC to 51.2v and AC2b to 54v (thinking this would solve it), then this error 08 started showing along with the 03 (alternating). Any Idea/help you can support me with?

 

[Mohdsaadi]

Hi Everyone, I just joined this forum, and I'm from Lebanon too, now as I am facing the same issue as:

I have 10 * 595 Watt Canadian solar panels, 8 * 300 AH batteries (gel batteries imported from China), and the Growatt SPF 5000 ES inverter.
I saw what @BeirutSolar said about the faulty connection and the switch and I don't have that. Still, I have an additional error that appears more than the 08, which is the 03 (battery voltage is too high), and this only happens when the EDL electricity, otherwise everything works fine.
It started with whenever the EDL is ON, especially at night (when there is no other source to charge the batteries than EDL), the inverter reads that the batteries are overcharged (60+ V) and then turns off, so I changed the setting of 01 from SUB to SBU, setting the b2AC to 51.2v and AC2b to 54v (thinking this would solve it), then this error 08 started showing along with the 03 (alternating). Any Idea/help you can support me with?

Hi how are you can I get your phone number
Or can you send me a message on wp

 

[BeirutSolar]

Hi how are you can I get your phone number
Or can you send me a message on wp
+96170514782

share a screenshot from growatt's portal of your settings, in particular the battery type, cutoff voltage, float, equalization, etc...

 

[Mcn3n]

share a screenshot from growatt's portal of your settings, in particular the battery type, cutoff voltage, float, equalization, etc...

I have 8 300 AH Chinese gel batteries (each 4 are connected in series, and the 2 sets are connected in parallel)

Program	Value
1​	SUB
2​	66​
3​	UPS
4​	DIS
5​	AGM
6​	ENA
7​	DIS
8​	220​
9​	50​
10​	4​
11​	30​
12​	46​
13​	54​
14​	SNU
15​	ON
16​	ON
17​	ON
18​	DIS
19​	56.4​
20​	54​
21​	42​
23​	SIG
28​	1​
37​	2022​
38​	5​
39​	18​
40​	10​
41​	0​
42​	0​
43​	ENA
44​	58.4​
45​	60​
46​	120​
47​	30​
48​	ON
49​	0​
50​	0​

anyway it seems to be solved, I had a voltage regulator installed before the inverter for the EDL to have an output of 220 into the inverter, once I removed the voltage regulator, this problem did not occur anymore, is it a coincidence? or could it be the problem?

 

[hadifayad]

Hi Everyone,

This morning while the sun was not up yet and the PV were barely picking up I got an error 5108 or 08 Bus voltage high (Fault) while charging from the utility. I restarted the inverters and everything worked out fine.

The setup is as per the following them as per the following:

• 2x SPF 5000 ES running in parallel (firmware: one inverter is 040/041-05-701 and the other 040/041-06-104)
• 10x Longi LR5-72HPH-545M (each 5 panels to an inverter)
• 12x Lento lead acid LSTB-22000 (12V 200Ah) - installed each 4 in series (48V 200Ah) and then the 3 series in parallel resulting in a setup of 48V 600Ah -> 28.8 Kwh
• The whole system is also connected to the utility as well.

My settings are as per the following:

Program	Value
1	SUB
2	70
3	APL
4	DIS
5	USE
6	DIS
7	DIS
8	230
9	50
10	4
11	30
12	46
13	54
14	SNU
15	ON
16	ON
17	ON
18	DIS
19	56.8
20	51
21	45
23	PAL
28	1
37	2022
38	5
39	18
40	10
41	0
42	0
43	DIS
44	58.4
45	60
46	120
47	30
48	OFF
49	0
50	0000

What could be the issue?

I have the exact same problem any hel ? I am using 8.2kw lithium battarey with growatt 5000 and 6 longi

 

[BeirutSolar]

I have the exact same problem any hel ? I am using 8.2kw lithium battarey with growatt 5000 and 6 longi

When the PV inverter is at full power, supplying a big load, or charging a big battery bank. Then, suddenly and at once, this load is switched off, or alternatively a PV input joins as a source with high VOC (which generally takes place early mornings & especially in cold weathers when VOC increases). At that moment the PV inverter will continue operating at full power until the AC frequency has been increased. Increasing this frequency will take a very short time, but during that time all power will be directed into the batteries as there is no other place for it to go. This causes the following:​

• When batteries are (nearly) full, the battery voltage will spike, possibly causing the inverter to switch off in DC over-voltage alarm.
• The same spike will cause the AC output voltage of the inverter to spike, as these two are directly related, and when the spike on the battery voltage is high and fast enough, the inverter can never regulate its PWMs down fast enough to prevent the spike on AC. This spike can damage the PV inverter, as well as any connected loads and other equipment.
• Another problem is that the inverter starts charge current protection.
• In the best case it might switch the grid inverter off immediately.

It is not a problem per say to overpower the grid inverter by installing more solar panels as most people do this to increase the generated solar power during winter time or rainy/cloudy weather.
however, i'd Recommend to always look at the Inverter datasheet for maximum allowed installed PV power. Two times the inverter nameplate rating or even more is not uncommon!
some mitigation techniques for the SPF 5000ES common 5108 issue:
1) Reduce EDL max charging current.
2) reduce Bulk & float voltage values (if you are able & not overruled by BMS in case of communicating lifepo4 battery)
3) use relays driven by dry contacts of BMS & configure charging with inputs to the SPF. (below is an example for VE)

 

[kevin_navid78]

I have 8 300 AH Chinese gel batteries (each 4 are connected in series, and the 2 sets are connected in parallel)

Program	Value
1​	SUB
2​	66​
3​	UPS
4​	DIS
5​	AGM
6​	ENA
7​	DIS
8​	220​
9​	50​
10​	4​
11​	30​
12​	46​
13​	54​
14​	SNU
15​	ON
16​	ON
17​	ON
18​	DIS
19​	56.4​
20​	54​
21​	42​
23​	SIG
28​	1​
37​	2022​
38​	5​
39​	18​
40​	10​
41​	0​
42​	0​
43​	ENA
44​	58.4​
45​	60​
46​	120​
47​	30​
48​	ON
49​	0​
50​	0​

anyway it seems to be solved, I had a voltage regulator installed before the inverter for the EDL to have an output of 220 into the inverter, once I removed the voltage regulator, this problem did not occur anymore, is it a coincidence? or could it be the problem?

hi what type of voltage regulator can i use? thanks same fault in my inverters

 

[primutechsarl]

Hi Everyone,

This morning while the sun was not up yet and the PV were barely picking up I got an error 5108 or 08 Bus voltage high (Fault) while charging from the utility. I restarted the inverters and everything worked out fine.

The setup is as per the following them as per the following:

• 2x SPF 5000 ES running in parallel (firmware: one inverter is 040/041-05-701 and the other 040/041-06-104)
• 10x Longi LR5-72HPH-545M (each 5 panels to an inverter)
• 12x Lento lead acid LSTB-22000 (12V 200Ah) - installed each 4 in series (48V 200Ah) and then the 3 series in parallel resulting in a setup of 48V 600Ah -> 28.8 Kwh
• The whole system is also connected to the utility as well.

My settings are as per the following:

Program	Value
1	SUB
2	70
3	APL
4	DIS
5	USE
6	DIS
7	DIS
8	230
9	50
10	4
11	30
12	46
13	54
14	SNU
15	ON
16	ON
17	ON
18	DIS
19	56.8
20	51
21	45
23	PAL
28	1
37	2022
38	5
39	18
40	10
41	0
42	0
43	DIS
44	58.4
45	60
46	120
47	30
48	OFF
49	0
50	0000

What could be the issue?

Try to select the exact type of battery in program 5. If your batteries are of AGM or Lead Acid, then select the appropriate type. When you select "USE" type then you have to adjust settings in programs 19, 20, and 21 for the charge voltage, in your current setting the inverter does not understand your battery chemistry therefore it cannot cut the charge off at the right time. Try the above settings in the Master inverter and let us know if such error comes back or not.

 

[sunpower961]

your battery bank is only 14.4kWh....irrelevant to your question, yet just a heads up clarification.

Hello @Bierut Solar I have installed a small system which is a Growatt 5000es with a Lithium battery 10kw the load is for a bunch of DVR ,alarm and Biometric system Almost 6-9 A max , thr Inverter was running fine until suddenly it started give a 08 fault alarm even

your battery bank is only 14.4kWh....irrelevant to your question, yet just a heads up clarification.

Hello @Beirutplease check the following:
i have installed a small system 1 growat 5000es with 1 lithium battery 15kw ( felecity)
With a load which is a bunch of dvr , alarm system , biometric, server for a total of 6-9 amp for a hotel .

The system was running great until suddenly the inverted started to output fault 08 , after restarting the inverter it works fine and then the fault occurs again and again knowing that the battery is always full or 80% capacity.

( Before there was 3 fridges hooked to the system we thought it was from them so we disconnect them but the problem persist.)

Do you think that the inverter is faulty from the factory? Or has something damage inside it ? I read an article about that saying that we need to update the firmware of the inverter or the main board is damaged? What do you think ? I hope you can help me fix this issue. Tell me what you might need and we'll make it work . My whatsapp is +96181 22 96 52