Search found 10 matches

by tahir
Tue, 20 Oct 2020, 05:39
Forum: Renewable Energy and Storage (Non-EV)
Topic: Axpert Error 51 repairs
Replies: 2
Views: 340

Re: Axpert Error 51 repairs

Dear check your battery voltage.
Is there same voltage on inverter display and on volt meter?
by tahir
Sat, 26 Sep 2020, 01:17
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 577
Views: 79540

Re: PIP inverter repairs and hardware modifications

the strings of 1M resistance giving 57.5mv on standby mode It looks like there is a 803:1 voltage divider (4.005 MΩ and 4.99 kΩ), so that seems about right. but ON mode its giving 45.5mv instead of 46.5mv I don't understand where the 46.5 mV is coming from. Are you saying that when the inverter cha...
by tahir
Fri, 25 Sep 2020, 19:17
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 577
Views: 79540

Re: PIP inverter repairs and hardware modifications

Thanks i am using power supply to repair inverters and set at 46.5vdc Ah. Is it strong enough to power the inverter when the "inverter proper" (DC-AC power converter) starts up? Even with no load, the initial start-up surge is significant for a laboratory power supply. 46.5 V is quite low; it may b...
by tahir
Fri, 25 Sep 2020, 19:11
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 577
Views: 79540

Re: PIP inverter repairs and hardware modifications

Thanks i am using power supply to repair inverters and set at 46.5vdc Ah. Is it strong enough to power the inverter when the "inverter proper" (DC-AC power converter) starts up? Even with no load, the initial start-up surge is significant for a laboratory power supply. 46.5 V is quite low; it may b...
by tahir
Thu, 24 Sep 2020, 18:22
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 577
Views: 79540

Re: PIP inverter repairs and hardware modifications

Thanks i am using power supply to repair inverters and set at 46.5vdc
by tahir
Wed, 23 Sep 2020, 20:38
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 577
Views: 79540

Re: PIP inverter repairs and hardware modifications

Hi friends , Thanks to all my very senior members I am new member here i have read different topics and discussion in this forum it helps me to repair many inverters. I have inverter with the startup issue when i switch on it shows low battery and then shutdown with blank screen and not showing any...
by tahir
Sat, 19 Sep 2020, 03:56
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 577
Views: 79540

Re: PIP inverter repairs and hardware modifications

The voltages are as follow: D57 on primary side of transformer only 13.8V( must be 15?) D54 11.36V (must be 12v) D67 8.83V to U5 (7805) 5V D70 - 14.97v to U20(lm7912) -12v R205,215,225 are good. Cant find C82 Will feel the board for warm components. Hi friends , Thanks to all my very senior members...
by tahir
Tue, 15 Sep 2020, 03:18
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 577
Views: 79540

Re: PIP inverter repairs and hardware modifications

The voltages are to low. The 12V is 11.2V. The 15V is 14V. All the capacitors are good If it was just that the voltages are low, I'd suspect the source resistors and components back to the Isense input (R205, R215, R225, C82), or possibly U10 itself. The inverter starts up and works for about 30 se...