Error 05

non-EV Solar, Wind and other renewable power sources
non-EV batteries and other energy storage stuff
Forum rules
Important!
This forum is for discussion of Non-EV matters.
Post Reply
bruce 1980
Noobie
Posts: 1
Joined: Tue, 24 Sep 2019, 12:06

Error 05

Post by bruce 1980 » Tue, 24 Sep 2019, 12:12

good day.Got an axpert inverter installed 2 day ago now giving error 05 for output short circuit.what could be the problem which places do i check when repairing it .5Kva 48v inverter.Also is there anyone with repair manual with schematic diagram.thanks

User avatar
coulomb
Site Admin
Posts: 3763
Joined: Thu, 22 Jan 2009, 20:32
Real Name: Mike Van Emmerik
Location: Brisbane
Contact:

Re: Error 05

Post by coulomb » Tue, 24 Sep 2019, 14:00

bruce 1980 wrote:
Tue, 24 Sep 2019, 12:12
Got an axpert inverter ... 5Kva 48v inverter.
There are quite a few models that fit that description.
installed 2 day ago
Surely that should be fixed under warranty.
now giving error 05 for output short circuit.what could be the problem which places do i check when repairing it .
I assume you've isolated the output, to rule out an actual short circuited load. Fault code 05 is not terribly common. It occurs when in battery mode, the output voltage is less than 50 V, and the output current is > 20 A, all three criteria for 5 times in a row. I'm fairly sure that the 50 V criterion is 50 VAC, not instantaneous 50 V.

I'm guessing that it could be a shorted output component (e.g. a MOV, filter capacitor, relay contact). Presumably the inverter proper is working, otherwise it could not generate more than 20 A of output current. Shorted IGBTs would presumably cause fault code 09 (error 09) instead (bus soft start error, due to the bus being shorted). There isn't really a schematic trace of the inverter output, but after the inverter IGBTs there is just an LC filter (both large components, hard to miss, see also the second block diagram here), then the relays as shown in this block diagram. The MOVs are large components that are fairly easy to identify. If you decide to attempt repairing it, I suggest that you peruse the repair section of this topic (first post contains an index).
Nissan Leaf 2012 with new battery May 2019.
5650 W solar, 2xPIP-4048MS inverters, 16 kWh battery.
1.4 kW solar with 1.2 kW Latronics inverter and FIT.
160 W solar, 2.5 kWh 24 V battery for lights.
Patching PIP-4048/5048 inverter-chargers.

User avatar
Richo
Senior Member
Posts: 3737
Joined: Mon, 16 Jun 2008, 00:19
Real Name: Richard
Location: Perth, WA

Re: Error 05

Post by Richo » Wed, 25 Sep 2019, 12:27

Most components wont survive 20A in a shorted state.
I'd go with the relay contacts welded or something outside the inverter (user error).
So the short answer is NO but the long answer is YES.
Help prevent road rage - get outta my way!

User avatar
coulomb
Site Admin
Posts: 3763
Joined: Thu, 22 Jan 2009, 20:32
Real Name: Mike Van Emmerik
Location: Brisbane
Contact:

Re: Error 05

Post by coulomb » Thu, 26 Sep 2019, 19:29

Another thought: perhaps you have a load with a DC component, and it has magnetised your transformer. For example, some cheap hair dryers and apparently also heat guns (with a high and low power setting) use a diode to achieve the low power mode. This causes a large DC component in the output current, which can cause transformers to saturate and draw a lot of current. If so, demagnetising the high frequency transformer inside your inverter-charger may be possible and not too difficult.

Thinking about this some more, it seems to me that the excessive current drawn would be before the current sensor, so it would not "see" the excess current. However, that might cause the output voltage to fall dramatically, so that the error could be triggered by the 50 V AC lower limit, rather than the 20 A AC upper limit.
Nissan Leaf 2012 with new battery May 2019.
5650 W solar, 2xPIP-4048MS inverters, 16 kWh battery.
1.4 kW solar with 1.2 kW Latronics inverter and FIT.
160 W solar, 2.5 kWh 24 V battery for lights.
Patching PIP-4048/5048 inverter-chargers.

Post Reply