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I have a small problem, I need to dismantle the tractor to do this
there isn't much clearance.

Hello
I installed a regen and reversing contactor on my tractor, and now i need to adjust brush timing to near zero, what is efficiency gain with advanced timing vs neutral?
The voltage and rpm is low but the amps are high.

First real job
https://youtu.be/SoVb-xVVOFM
Regen is a must, I'm still waiting for relays for that.

Zapi in pump mode, no regen, I need reversing and breaking contactors for regen.
Still 32 V
https://youtu.be/8LywRt-vLU8

32 V test, still waiting for programming console for zapi
https://www.youtube.com/watch?v=fGhHhnv ... e=youtu.be

first test of mechanic...
https://youtu.be/t73-DLDpyjU

I order 32 pieces today and the seller charged me with 239 US$ on top of the price for the 30 % shipping cost increase
still good price if the tax for EU is included
He also sell CATL 200 Ah for almost the same price.
The CATL lifepo4 batteries will be in tesla model 3 for chines market.

Where is the catch with this offer? https://www.aliexpress.com/item/4001081206534.html?spm=a2g0o.detail.1000060.1.395e280d2B25MN&gps-id=pcDetailBottomMoreThisSeller&scm=1007.13339.146401.0&scm_id=1007.13339.146401.0&scm-url=1007.13339.146401.0&pvid=ef7653ff-e90a-4e1b-870c-cacb7713fe8e&_t=gps-id:pcDe...

I order the zapi h2 601 dc controller with regen and now I need a contactor for regen, it must be SPDT type.

TFR on the picture
Any sugestions?

I think the dc/dc is a cheaper option too, you need to fabricate a mount and belt for alternator + bigger traction motor and battery

In in event of crop spraying You need constant pto rpm and constant speed in down and uphill.
I have no plane fields on my farm.

Right! I have hils on my farm and when I disperse manure I always go downhill and the engine breaks so I need regen. I'm looking at this controller: https://www.ebay.com/itm/Programmable-DC-Series-Motor-Controller-Zapi-Replacement-H2B-A8H268-80V-600A/383010741394?_trkparms=ispr%3D1&hash=item592d381c...

ah, what you are asking is very difficult with a series wound motor to achieve speed regulation would mean powering the field winding directly (ie 2V or so at 500A). you might get away with doing this with a 12v controller, powered off your 12v battery, though you would be controlling this manually...

I would be better of with ac motor I know, but I have the motor an it cost me 500 € and it will go in. The seller of the motor also have evnetisc soliton1 but i refused it because of not having regen. I gues all modern dc controllers with regen are for PMDC motors right ? like this one: https://www....

The Voltage is around 72 V.
It's not so much getting the energy, back, it's maintaining constant rpm during downhill.
In low gear you could easily explode the motor.

Hello
I find NetGain warp9 dc motor and I will put it in my tractor.
Is there a dc controller with built in regen function for this series wound DC motor?

So kelly or slider will not work without encoder ?
in speed mode?
slider:
https://www.alibaba.com/product-detail/ ... 3e5fw0fNC3

At first they blame 12 V battery but it was not the cause of the fault

I could not find out, they told me they replaced something

The message start to apear gradually until it was not possible to start charging any more.

Off grid colar charging...

The car fuel gauge is updating normal with positioning lights on, only the regen is not shown. One time I had a charging inpossible message and I had to take the car to the service but the battery was empty, I could call the flat bed, but I charge the car with my ups through the spare 400 V connecto...

yes, the car show regen if it is on , if it is off and possitioning lights are on then no.

Zoe R motor has a spare 400 V connector in the back where you can connect solar pannels directly to the battery , no inverters :) But you have to be careful, the car must be on or the positioning lights must be on, so that the car will not go to "sleep" and diskonnect's the main contactor, if that h...

Hello
My first Zoe service cost me 38€

An encoder is only needed it you want fine torque control. On a tractor you could probably get away with either speed control only, or course torque control that running open loop without an encoder would offer thank you ! It will be doing light work, for heavy work I have this one [tube]https://yo...