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

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

Postby Burgerman » 09 Sep 2018, 10:59

Same. But as power supply and 3 stage charger its great. Fit a couple of ceramic caps for ringing, and high frequency noise if it worries you for electronics. Or the tiny ones it came with. But for what we all do with it its fine as is. Yes its not accurate to a couple of mV, and it varies a bit (climbs) up to .1v or a fraction more at high power under load. But thats good for charging or power supply use as it compensates a little for cables and connectors! So it actually helps.
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Re: ZXD2400 modification guild 3Kw 0-60V 0-50A

Postby stevelawiw » 09 Sep 2018, 20:03

I took it all to bits, checked all the wiring and found no problems with it, so I put it all back together, re-ran the auto config and it works :D
It's powering my Hyperion now charging my Lithiums
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Re: ZXD2400 modification guild 3Kw 0-60V 0-50A

Postby Burgerman » 09 Sep 2018, 20:07

Is it the UIE problem? :problem:
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Re: ZXD2400 modification guild 3Kw 0-60V 0-50A

Postby shirley_hkg » 10 Sep 2018, 02:14

stevelawiw wrote:I took it all to bits, checked all the wiring and found no problems with it, so I put it all back together, re-ran the auto config and it works :D

Seems ex-Gooserider's thought worths a look .
ex-Gooserider wrote:I decided that I was not comfortable with the coils being next to the bare metal of the fancy case, so I peeled the yellow fiberglass insulation sheets off the original case and put them in approximately the corresponding locations on the fancy case... While it only seemed really necessary for the large piece next to the coils, once I started, I just went ahead and moved all the pieces over...

It was pretty easy, once the peel was started with a razor scraper, the insulation just pulled off. Most of the double-stick tape that held it on peeled off with it, so I just stuck it on the new case without needing any added tape.


...

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

Postby ex-Gooserider » 10 Sep 2018, 02:51

Playing with some of the menu setup stuff, it seems that doing the manual calibration might get it a hair closer, but doesn't make a significant difference...

A few other questions I haven't figured out,

1. Any details on what menu "A" does? the description says
The 7 circles on the right are function switches. The items that can be set are as follows: ● Minimum resolution of the voltage meter head ● Minimum resolution of the current meter head
but I haven't found anything on how the switch settings in that menu work... Since I'm getting 0.00 resolution on each, I probably don't want to change them, but it would be nice to know..

2. I have turned on that '9 preset' function, but it isn't obvious how to use it - how does one assign values to a particular preset, and then select it?

3. Can one assign different '3-stage charger' configurations to the different presets? Or are they limited to just volt / amp settings? It would be nice to have different presets for MK vs. Odyssey, XLR plug vs. Anderson, etc....

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

Postby Burgerman » 10 Sep 2018, 03:18

3. Can one assign different '3-stage charger' configurations to the different presets? Or are they limited to just volt / amp settings? It would be nice to have different presets for MK vs. Odyssey, XLR plug vs. Anderson, etc....


Thats the idea.

Not tried that though as it just seems to complicate the menu. As long as you can set CV and Amps, (14.1, 28.2, 14.4, 28.8, and either 40A or 12A, and Float V at 13.6 or 27.2, and the point where it swaps from one to the other (0.2 or 0.3A) which you can, then its all pretty simple. Without needing the 9 presets.

If you did it with presets you would need:
0.3 termination in parallel and 0.2 in series or one battery and 13.6 or 27.2V float for all:

1. Gel 14.1V 25A. One battery...
2. Gel 14.1V 50A. Two in parallel...
3. Gel 28.2V 25A. Pair in series...
4. Gel 28.2V 12A XLR.
5. AGM or Odyssey 14.4V to 14.7V 50A. Pair parallel AND one battery.
6. AGM or Odyssey 28.8V to 29.4V 50A
7. AGM or Odyssey 28.8V to 29.4V 12A. XLR
8. AGM or Gel, 14.0V 2A with .5A termination and 13.4V float for long term storage PARALLEL.
9. AGM or Gel, 28.0V 2A with .5A termination and 26.8V float for long term storage SERIES.

Now you have every eventuality for lead, and no preset programs left!
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Re: ZXD2400 modification guild 3Kw 0-60V 0-50A

Postby shirley_hkg » 10 Sep 2018, 04:00

The float volt and triggering residual amp are in percentage of the bulk , stored @73/74. Don't think a preset can accommodate a change at these .
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Re: ZXD2400 modification guild 3Kw 0-60V 0-50A

Postby Burgerman » 10 Sep 2018, 06:32

Then its pointless. But I dont use it anyway. Its simple to choose settings manually before you charge.
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Re: ZXD2400 modification guild 3Kw 0-60V 0-50A

Postby stevelawiw » 10 Sep 2018, 16:11

Is it the UIE problem? :problem:

User Interface Error? :lol: Probably!
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Re: ZXD2400 modification guild 3Kw 0-60V 0-50A

Postby steves1977uk » 10 Sep 2018, 17:20

Since the un-modded ZXD2400 has RS485 Serial Comms, it does make me wonder if there's software to control the functions, similar to CCS for the PL8. :?

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

Postby ex-Gooserider » 10 Sep 2018, 23:56

If I understand the numbers correctly, the float and residual have the same relation to the main charge values on both Gel and AGM, so not sure they would need changing... So the presets would mostly need the main charge voltage and current, and that they should be doing the three-stage charge thing rather than just doing power supply output at that voltage until the end of time (or it is manually changed...)

I also think BM slightly overdoes it on the number of preset values needed, I could probably get away with 4 - 2 x Gell via XLR or Anderson, ditto AGM / Odyssey....

OTOH having to program in all the setup values every time you need to change the setup seems tedious...

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shirley_hkg wrote: The float volt and triggering residual amp are in percentage of the bulk , stored @73/74. Don't think a preset can accommodate a change at these .
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Re: ZXD2400 modification guild 3Kw 0-60V 0-50A

Postby ex-Gooserider » 11 Sep 2018, 00:08

steves1977uk wrote:Since the un-modded ZXD2400 has RS485 Serial Comms, it does make me wonder if there's software to control the functions, similar to CCS for the PL8. :?

Steve


I don't know about the software - but I noticed there were silkscreen marked points for TX/RX etc. on the encoder display board - we didn't hook anything up to them....

My guess is that the pre-mod units would have used the comm to report up/down status and possibly things like temperature alarms... It might have has some sort of remote on/off, but usually those racks have all the supplies running so that there wouldn't be downtime if one failed... Since it was originally built as a fixed output supply, I wouldn't have expected any other sort of output C/V control...

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

Postby steves1977uk » 11 Sep 2018, 00:26

Agree with that ex-G, although the pre-mod could have a 42v-60v adjustment. Combine that with the mod, it would make it easier to set up via a PC.

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

Postby Gnomatic » 13 Sep 2018, 16:40

I for some reason decided to go into the service menu and start messing with the settings. And it didn't end well. Now I turn it on and get no output, with a negative current reading on the display. Servers me right I suppose. :oops: :oops: :oops:

Image

I think I need to try to reset this thing.
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Re: ZXD2400 modification guild 3Kw 0-60V 0-50A

Postby Burgerman » 13 Sep 2018, 17:11

for some reason decided to go into the service menu and start messing with the settings.

I didnt do that. I thought it may not end well... :cussing
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Re: ZXD2400 modification guild 3Kw 0-60V 0-50A

Postby Williamclark77 » 13 Sep 2018, 17:52

Hopefully you just turned the auto output off. Connect it and press the button once to see if it starts outputting.
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Re: ZXD2400 modification guild 3Kw 0-60V 0-50A

Postby Williamclark77 » 13 Sep 2018, 17:54

The auto output at power on is the third 0 in menu 9. Move it to the top I THINK. Worse comes to worst just do a factory reset, recalibrate, and start over.
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Re: ZXD2400 modification guild 3Kw 0-60V 0-50A

Postby Gnomatic » 14 Sep 2018, 03:20

Williamclark77 wrote:The auto output at power on is the third 0 in menu 9. Move it to the top I THINK. Worse comes to worst just do a factory reset, recalibrate, and start over.


I think that's my best course of action at this point ..............
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Re: ZXD2400 modification guild 3Kw 0-60V 0-50A

Postby ex-Gooserider » 15 Sep 2018, 03:36

I would be particularly curious but worried about messing with the EEPROM menus E & F... They don't really say what the difference is between E and F, though they look like they are the same at a casual glance...

What is more tempting? is the fact that there are far more values listed in the EEPROM menu than are described in the pages we have... The temptation exists to want to find out what they are for.... Must resist.... :angel:

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

Postby ex-Gooserider » 15 Sep 2018, 03:48

True there is that adjustment, but I would have been surprised to see it accessible by software - it seemed to be done in hardware by turning the pot that gets removed when installing the mod kit... (see test process for pre-mod) From back when I worked on telco equipment years ago, they liked to have the PSU's in a rack all putting out about the same voltage, but it wasn't critical since the reason for the multiple supplies was redundancy, not to actually supply power through more than one at a time... Basically they ran through X-or diodes so that one supply would be doing the work, and the others would be idle and running with little or no load... (You also have two DC feeds, so one supply going to each....)

Bottom line is they had no real reason to want to adjust the supply other than in hardware at initial setup, but would absolutely want to be notified if a supply died...

However if the mod is capable of it, I agree that setting up by PC would be easier....

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steves1977uk wrote:Agree with that ex-G, although the pre-mod could have a 42v-60v adjustment. Combine that with the mod, it would make it easier to set up via a PC.

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

Postby steves1977uk » 15 Sep 2018, 10:35

ex-Gooserider wrote:I would be particularly curious but worried about messing with the EEPROM menus E & F... They don't really say what the difference is between E and F, though they look like they are the same at a casual glance...

What is more tempting? is the fact that there are far more values listed in the EEPROM menu than are described in the pages we have... The temptation exists to want to find out what they are for.... Must resist.... :angel:

ex-Gooserider


The only difference between menu E & F is menu E uses decimal values and F uses hexadecimal.

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

Postby Burgerman » 15 Sep 2018, 11:43

The only difference between menu E & F is menu E uses decimal values and F uses hexadecimal.

Steve


Still be careful, as you dont know *why* they chose the values you see... And :ambulance
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Re: ZXD2400 modification guild 3Kw 0-60V 0-50A

Postby steves1977uk » 15 Sep 2018, 16:57

True BM, never change unknown values apart from the ones listed in the guide.

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

Postby Gnomatic » 16 Sep 2018, 17:45

After mucking about in the service menu and messing things up, I went back in and performed a factory reset as Will suggested. This seems to have worked. I set the voltage to 30v and the current to 25A(max this thing allows running off a 110v AC outlet). It now powers my my PL8 again, thankfully I didn't ruin it. The voltage the PSU displays and what my cheap voltmeter now reads from the outputs seems consistent.

However, the PSU display voltage and current readouts now vary a bit, each jumping around by a couple 1/100ths of a volt and the same for the amps even while at idle. So I guess going through the auto-calibration procedure is my next step. I need to read up on that before proceeding, now I worry I'll screw thing up again. :fencing :cussing

Tips and suggestions welcome. :)
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Re: ZXD2400 modification guild 3Kw 0-60V 0-50A

Postby Burgerman » 16 Sep 2018, 18:37

It does vary a few mV regardless. Mine increases under load, which while wring its actually a good thing as it covers the cables resisatance drop...
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Re: ZXD2400 modification guild 3Kw 0-60V 0-50A

Postby LROBBINS » 16 Sep 2018, 20:10

The rise under load is, if I recall correctly something Shirley wrote, intentional. In any case, this is a very capable power supply, but not a laboratory instrument and you shouldn't expect it to be a reference standard.
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Re: ZXD2400 modification guild 3Kw 0-60V 0-50A

Postby martin007 » 16 Sep 2018, 23:15

Hello again.
I have been busy for a few days and I haven´t been able to connect.


I have a question for you.
What is the correct order to connect the batteries to the PSU and the electrical network?

Connect.

1º- Powerchair to PSU.

2º- PSU to electrical network.
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Re: ZXD2400 modification guild 3Kw 0-60V 0-50A

Postby Burgerman » 17 Sep 2018, 00:59

Normally power up first. Connect to chair last.
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Re: ZXD2400 modification guild 3Kw 0-60V 0-50A

Postby shirley_hkg » 17 Sep 2018, 01:57

Burgerman wrote:Normally power up first. Connect to chair last.


Yes, and power off last . drunk2 :dirtbike
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Re: ZXD2400 modification guild 3Kw 0-60V 0-50A

Postby Burgerman » 17 Sep 2018, 02:21

You were not swept away then? :clap
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