ZXD2400 modification guild 3Kw 0-60V 0-50A

[shirley_hkg]

If so, self calibration failed. Prepare a piece of thick wire to short the output, and redo the self calibration again. (Turn it on, press 3 seconds to shut it down , then press 15 seconds to power it up and wait till you see the first left WHITE ZERO, follow the screen to finish .)

[Furio]

Hi,

During power on, it displays set voltage and current but when switching on, zero voltage is displayed.
Anyway, tomorrow I will carry out the procedure as Shirley-hkg suggested.

[shirley_hkg]

https://www.wheelchairdriver.com/board/ ... 82#p195382

[Furio]

Self calibration could not be done as the white zero didn't appear. While tinkering, I noticed the eprom settings 52 & 53 of voltage and current, altered to 120v and 25amps. These are now set at 60v and 40amp. Yet there is no voltage at the o/p terminals.If anybody posts recommended settings of eprom I can compare with those and reset.

[shirley_hkg]

Would you take a video how it turns on, and upload to youtube ?
Take another video that shows it won't go to self calibration too .

[Burgerman]

Do you mean 60V and 50A? Thats what it should be as stock.

[Furio]

Hi shirley-hkg ,

I got into auto calibration mode after changing the password, but ended up with error 001as happened to LRobbins though I have not changed the fans as he did. So now???

[shirley_hkg]

Maybe we can try to increase the fan loads.
Bigger fans ?
Pair another fan to the original one ?

[Burgerman]

Maybe a fan has failed or its connection isnt good?
Strange coincidence though. Same error etc.

[Furio]

The existing fans are the original ones and both are working.There was never a rough handling. It is impossible to add another one. There might be some software solution.

My ZXD2400 version is 3.17

[shirley_hkg]

Got in touch with the modification guy , who said it's hard to say without visual .

Would you take a video how it turns on, and upload to youtube ?
Take another video that shows it won't go to self calibration too .

[shirley_hkg]

The existing fans are the original ones and both are working.There was never a rough handling. It is impossible to add another one.

Pair a fan to the original one to increase load , or swap with a fan with bigger amp.