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The "Clipper" / Re: ac clipper max voltage question
« Last post by FNG on Today at 12:49:28 PM »
The clipper will not see greater than 250vdc as it clamps at or below the 250 volts, thus loading the turbine so it never open circuits. So its sort of chicken and egg in a way but the fact the clipper is powered from the turbine and pwms the resistors means it will never allow open circuit
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The "KID" charge controller / Re: Kid charge controller suddenly dead
« Last post by FNG on Today at 12:47:20 PM »
If you have 11 volts or more at the battery terminals and the fuse is verified good the kid is broken for some reason. I would try swapping the 2 fuses and see if it's still dead.

The 40 amp fuse is proper as UL asked for breakers inline and they want the breaker to blow before the fuse. Also, a 30 amp fuse blows faster than a 30 amp breaker.

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The "Classic" charge controller / Re: classic 150 cycling in follow mode
« Last post by dgd on Today at 05:30:32 AM »
The classic with the WBjr, make it the first then run the follow me wiring to the second then the third. Forget the loopback that connects from third back to first, ie remove cable.
Now set the setpoint voltages so that first Classis slways moves to Absorb then float before the other Classics. Make the second classic move before the third. Fiddle the setpoints voltages to do this.
As you have already discovered no two zclassics seem to agree on battery voltage so some faffing about is necessary
Thats how I have three Classics working on one site, using followme. Been going now for near 2 years.

The only effective alternative I have used is to have the Classics controlled by a computer that forces different states using modbus commands. An ideal use for an rPi or similar.
Dgd
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The "Clipper" / ac clipper max voltage question
« Last post by bennyspoon on Today at 02:50:56 AM »
Hi gang,

I recently aquired a q4 14 ac clipper recently that i am going to pair up with a 250v classic.

The sticker on the side of the unit and the sticker underneath the 3 phase input wires both state 250v max.

In the video MidNite Solar - Clipper/Classic Installation - Ricks on youtube the voltage of the unloaded turbine is shown to be in excess of 420 volts dc unloaded.

Basically my question is, before I wire my stator up, what is the max voltage that the clipper can see without damage?

Thanks,
Ben.


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The "KID" charge controller / Re: Kid charge controller suddenly dead
« Last post by ClassicCrazy on July 14, 2018, 10:56:19 PM »
Without knowing the history of this system, the way the batteries are wired , how far the batteries are drawn down and how often they get a full recharge, if the batteries got watered added regulary and equalized , etc it is tough to know what happened.

From what is described it almost sounds like the two bad batteries may have been on a slow long decline until they suddenly went down far enough to turn off the Kid.  The loads since they are wired directly to the battery may be able to run at a voltage much lower than the Kid.  The radio went back on because it was able to run at a lower voltage input.

If parallel batteries are not wired properly they will not share the load , or the charge the same. So cells in some of the batteries can go low and slowly go lower and lower and then the battery is no good.

Also all the connections on all the Kid terminals and  batteries, breakers, any terminal ends would need to be carefully examined to make sure there is no corrosion and that all connections are clean and tight .

Larry
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The "Classic" charge controller / Re: classic 150 cycling in follow mode
« Last post by australsolarier on July 14, 2018, 09:35:21 PM »
bob
the problem is not that the follow me mode does not work, most of the time. it works. but every so often it does not. i am aware of the tutorial. intermittent faults are always the worst and most difficult to solve.

westbranch

those 3 midnite classics in follow mode have been following each other since christmas. now, i l hope the wires are "positioned correctly".
and no, the 3 midnites are not all programmed exactly the same. for example the voltage adjustments are different in each of them. float and absorb settings are slightly different. (that is because what the classic is set to and what it actually does are not exactly the same. (i have lifepo4 batteries and they are very touchy to one tenth of a volt difference) firmware 2126 all 3 midnite classics. two classics are in solar mode, the master in legacy. the master is in legacy because it goes to rest mode in sunny weather in solar mode. i would presume the follow me command would still cause all 3 classics to follow, what ever all the settings. possibly might cycle, but all 3 classics together. in my case one classic did not give on the float command.

i will set the slaves back to legacy mode. and go from there. (by the way, solar mode with multiple classics causes rapid fluctiations of power in float and absorption mode, which i do not like too much.)
to do a firmware reset: this will take some time and i want to be at home during the float.

i opened this post, to make people aware that sometimes the follow me mode does not work. personally i do not like that follow me thing. i would like it to be the master on the whiz bang jr that does all the deciding. like the general gives the command to attack and all soldiers attack. not a random soldier gives a command to attack or stops the attack because he is fiddling around his phone for example. just saying


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The "KID" charge controller / Re: Kid charge controller suddenly dead
« Last post by Westbranch on July 14, 2018, 08:40:11 PM »
hi cjessett... a few  Q's to clarify in my mind...

PV connected and reading 70+V   ...  is this before  or after removing 10V batteries from KID?....After connecting the 12V+ battery?

OK 12+V battery connected and Kid does not respond/ boot up.  Have you done a factory RESET?
I hope you have a copy of the manual... if not go to the main MidNite page and you will find a link to the manual.

More Q's  later.
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The "KID" charge controller / Re: Kid charge controller suddenly dead
« Last post by cjessett on July 14, 2018, 06:47:28 PM »
cjessett,

OK on the fuses.   For now,   those should be fine,   as long as there is an input and output breaker or fuse.   Normally fuses/breakers protect the connected cable,  not devices.

Wonder if this KID is located in Lightning country,   and if there have been any thunderstorms in the area,   recently.

You might want to check the battery voltage at the KID terminals,   or at least at the KID end of the fuse/breaker that connects to the KID battery terminals.

Others will probably have some good ideas about that to check.

Gotta go for now,   Vic

No storms in the area when this occurred.

Kid battery terminal reads 12.6V
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The "KID" charge controller / Re: Kid charge controller suddenly dead
« Last post by cjessett on July 14, 2018, 06:37:19 PM »
Some back story on when it died.

A freezer was the bulk of the load and buddy woke up in the morning to find the charge controller dead and the load off. Unplugged freezer, flipped breaker switch off/on ,small radio turned back on. Charge controller never turned back on.

The freezer is rated at 0.95 amps.
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The "KID" charge controller / Re: Kid charge controller suddenly dead
« Last post by Vic on July 14, 2018, 06:32:36 PM »
cjessett,

OK on the fuses.   For now,   those should be fine,   as long as there is an input and output breaker or fuse.   Normally fuses/breakers protect the connected cable,  not devices.

Wonder if this KID is located in Lightning country,   and if there have been any thunderstorms in the area,   recently.

You might want to check the battery voltage at the KID terminals,   or at least at the KID end of the fuse/breaker that connects to the KID battery terminals.

Others will probably have some good ideas about that to check.

Gotta go for now,   Vic
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