Hi,

I need help for inverter settings. We have heavy load shedding around 6 to 8 hours.

Bellow is my current settings.

Battery     185Ah
system    12v
panel     150x4
    
program 2    20A
program 5    use
program 12    12.80
program 13    13.80
program 16    snu
program 26    14.10
program 27    13.50
program 29    12.50

Thanks 

58 minutes ago, Chunu said:

Hi,

I need help for inverter settings. We have heavy load shedding around 6 to 8 hours.

Bellow is my current settings.

Battery     185Ah
system    12v
panel     150x4
    
program 2    20A
program 5    use
program 12    12.80
program 13    13.80
program 16    snu
program 26    14.10
program 27    13.50
program 29    12.50

Thanks 

What type of batteries are you using?

Tall tubular deep cycle .

Program 1  sbu

Edited July 23, 20223 yr by Chunu

You could maybe go to 30 A maximum total charge current (setting 02).

All else looks OK.

Edit: you could get a little more run time, at the expense of reduced battery life, by reducing setting 29 (low DC cutoff voltage) to as low as say 12.2 V (as low as I would want to go).

Edited July 23, 20223 yr by Coulomb

Thanks for you suggestion i will change charge current to 30A but i don't want to compromise on battery life.

10 minutes ago, Chunu said:

Thanks for you suggestion i will change charge current to 30A but i don't want to compromise on battery life.

The suggestion of 12.2V on setting 29 should not compromise cycle life..

That's good but  i am afraid if battery discharge till 12.2v may not fully charge again since i have small system and heavy load shedding. Any way i will give a try.

7 minutes ago, Chunu said:

That's good but  i am afraid if battery discharge till 12.2v may not fully charge again since i have small system and heavy load shedding. Any way i will give a try.

That is a great point which again shows that each system is different and one must make adjustments based on own system. Not one shoe fits all.

Hi,

I made some experimental changes and now error code 02 appears. when grid off  after 30 minutes inverter starts warning but doesn't shut off , continue running for next two hours then grids on. Load was around 200w. Now This happened every time grids off.

Battery is fully charged on floting stage 13.3v

I change back to old settings but problem still there.

This is my settings.

Battery     185Ah(Tall tubular deep cycle)
system    12v
panel     150x4
    
program 1    SBU
program 2    30A
program 5    USE
program 12    12.30
program 13    FULL
program 16    SNU
program 26    14.30
program 27    13.30
program 29    11.90

Please help.

Thanks 

Edited July 27, 20223 yr by Chunu

4 hours ago, Chunu said:

Hi,

I made some experimental changes and now error code 02 appears. when grid off  after 30 minutes inverter starts warning but doesn't shut off , continue running for next two hours then grids on. Load was around 200w. Now This happened every time grids off.

Battery is fully charged on floting stage 13.3v

I change back to old settings but problem still there.

This is my settings.

Battery     185Ah(Tall tubular deep cycle)
system    12v
panel     150x4
    
program 1    SBU
program 2    30A
program 5    USE
program 12    12.30
program 13    FULL
program 16    SNU
program 26    14.30
program 27    13.30
program 29    11.90

Please help.

Thanks 

Error 02 is over temperature. Was it working very hard under high load at some stage during LS.

No load is always within the limit. Error disappear automatically when grid is on. Error appears when battery voltage 12.1v under load around 200w.

1 hour ago, Chunu said:

No load is always within the limit. Error disappear automatically when grid is on. Error appears when battery voltage 12.1v under load around 200w.

Are your fans running while discharging from batteries?

With setting 29 now at 11.9V you should be getting a 04 warning that the battery is discharged past your low alarm level. Do you get a 04 warning code?

 

Yes fan is running while discharging. And no error 04.

Hi, 

Found the reason of fault 02, infact the warning indicator 02 and that is for low battery. Unfortunately my inverter is old model (delux power max 1200- 900w) and doesn't have user manual. I downloaded user manual for another brand which have similar functions. After changing the battery problem solved.

Thanks  Coulomb & Scorp007 for help.

2 hours ago, Chunu said:

Hi, 

Found the reason of fault 02, infact the warning indicator 02 and that is for low battery. Unfortunately my inverter is old model (delux power max 1200- 900w) and doesn't have user manual. I downloaded user manual for another brand which have similar functions. After changing the battery problem solved.

Thanks  Coulomb & Scorp007 for help.

Glad you found the reason for the alarm. When you indicated you don't have an alarm for battery getting low I found it strange and in the back of my mind I wondered if your inverter doesn't have different warning codes. Again the danger of using current model setting/code numbers for other/clone models.