PINNED ZXD2400 Old + New 0-60V 0-50A Power Supply & Charger

[shirley_hkg]

Where is that 0.34Ω came from ?

[Burgerman]

Its a resistance measurement in DC which you cannot do with lead, including cables etc. So not much use with lead. With lithium it may be of SOME use but it will mostly measure connections and cables...

Anyway, heres my current settings for GEL battery...

Not at top in white, LEADACID.
Initially when I switch on power it just reads the ALREADY FULLY CHARGED battery voltage! This is about 26.5V?

Then when I switch on, by pressing button, it charges at 28.20V correctly, and the current in amps starts low, and soon drops below the 00.15A (150mV) I have set.
At this point the battery voltage drops away again, until it falls below the 27.20V hat I set for float for around 5 seconds. And then it charges for a while until it reaches the float voltage again. Then it switches off. And waits for the volts to fall again. Over and over.

This will continue, untill the 16 hours I selected is done. Then it will turn off.


It will give a 99.5% charge in the 28.2V, 8 hour long Absorption stage.
This will give a fully saturated complete charge in about 12 hours but best left for 16 hours if you get chance.
If you need to use the chair you can do so after the 28.8V absorption stage ends after 8 hours perfectly safely too. But leaving it longer once or twice a month is beneficial.

Remember its already full here!
www.wheelchairdriver.com/gopro/ZXD.mp4

[Burgerman]

This will continue, untill the 16 hours I selected is done. Then it will turn off.

So I thought... Nope! I dont understand the timer...

[Raro]

If it's not a bother, can you make a video showing how you configure the zxd?

[Burgerman]

No need.

Just look at the screen. As you turn the knob it goes to the top (the white bit) (or any other feild in turn). And allows you to then press to "select" any "adjustment" and it dims a little and the selected field turns GREEN so you can tell which one you are on.
As you press once then turn the knob now the digits or options change.
And so now you can select for e.g power supply, leadacidcharge, lithiumcharge at the very top. Press again and its locked it to that setting. Intuitive and super simple once you try it.

Then turn knob again to scroll to all the other various setting feilds in turn. And then just do the same, one press to select it, then turn to set whatever numbers you want, then press again to lock it in.

A video wouldnt show this well anyyway as you need to feel and watch as you go. Easier to see on your own screen/charger. Just do it, its simple. Much easier than the older versions. Scroll to the OFF square (which is telling you its OFF and it turns green. And press ONCE to turn it to on. And it will then display CV or CC if thats what its doing and it will start up.

Whole setup for any new battery or type or power supply takes seconds. And if you look at the blue help text that appears at the bottom theres even a description that appears to explain what it will do!

Then after this setup session you just need to press START button in future to turn it on. And press the OFF button (its telling you its off - in a little square) to begin.
Watch http://www.wheelchairdriver.com/gopro/ZXD.mp4
Note that I turn it on first.
Then press once more and the OFF square turns green, and now says CV for Constant Voltage.
Although I am doing this with it falling off the bed balancing right on the edge with one hand as the other holds the camera as I am laid onmy side so not a great vid! And a crap phone camera.

[Burgerman]

Note for those with carers. Once you have set it how YOU want it, you can lock the screen.
And in the setup menu 0000, or the advanced menu setup (4 full seconds press and same 0000 which isnt complicated you can set it to autostart too.

So now a carer cant do any damage, or adjust anything. I suggest changing the password to 1234 instead to stop them accessing the setup menue as well.

Then: Plug it in and it will just charge automatically like a mobility charger. Only way better WITH YOUR CORRECT SETTINGS!!!

I am ordering another...
And will sell my olderZXDs, and my SM3040 bench supplies. And older louder ZXDs. Its Small, quiet, 3000w output and 0-50A capable at 0-60V. Whats not to like.

[Burgerman]

I like this new one so much I just ordered another one!
Same, small case, large screen anderson on rear as above.

Those, delivered (3 weeks from order) are:

Stock Plastic case $1,800 HK Dollars. (or £180 UK)
Fancy Aluminium case + 2.4" screen $2,050 HK Dollars. (or £205 UK)
Large screen, small case, andeson rear etc same as mine $2 ,200 HK Dollars. (or £220 UK)

So for anyone interested I will sell:
a) the older style one. Looks as good as new but used for a few years. Bit of dust...
b) never used older style one complete with fancy case never yet assembled!
c) at least ONE of my big analog 0-30V 0-40A bench power supplies that are years old!

If interested make an offer and pm me. Or eBay ahead...

[Burgerman]

More info.

In the USER MENU (0000), and ADVANCED MENU (also 0000) you can set MANY OPTIONS like a limit on
a) output or input WATTS.
b) output VOLTS (any limit from 1 to 60V)
c) output AMPS (any from a fraction of an amp to 50A)
d) password the settings lock
e) remove any of the POWER SUPPLY or LITHIUM CHARGE or LEAD CHARGE choice.
f) calibrate voltage or current (to fine tune)
g) set fans to OFF at low power so silent if charging low power or on float.
h) set it to AUTO TURN ON when plugged in.
i) set it to AUTO START when turned on. (so if settings are locked and passworded a carer cannot get wrong! As no response from knob etc.
f) lots more!

[Burgerman]

Screen...

Arrow Colours:

1, LIGHT GREEN: Realtime battery or output voltage measured at the terminals.
2. LIGHT YELLOW: Realtime current in Amps, being sent to device in SUPPLY MODE or battery in BATTERY MODE.
3. LIGHT BLUE: Amp Hour accrued (a guide to Ah sent to battery but this will be 5 or 10% more than the Ah actually used with lead.
4. BLACK: Tell us if output is active and if its CC (BULK) or CV (Absorption). Followed by Mains AC voltage.

1 to 4 we cannot set. These are information only.

5. WHITE: Allows is to SET either LeadAcidCharge (CC/CV/FLOAT and timer, and tail current) or LITHIUM (CC/CV), or POWER SUPPLY (VOLTS / MAX AMPS)
6. DARK GREEN: Allows us to set correct CV or ABSORPTION Voltage.
7. DARK YELLOW: Allows us to set the charge MAXIMUM current allowed. During CC stage.
8. DARK BLUE: Allows us to set correct FLOAT VOLTAGE
9. PURPLE: Allows us to choose the tail current where the battery is about 98% charged or 8 hours at CV to transition to FLOAT. This needs personalisation initially.
10. GREY: Here we can choose how long charger stays on. The on off switch sets the charger to turn off when it sees no current. OR it chooses weather the charger stops charging after its been at FLOAT for a pre determined number of hours. I set this to 8 hours.
11. RED: this will start the charger. Then it displays the mode, e.g CV or CC. If nothing is selected just pressing the knob will also start it.
12. ORANGE: Press for MENU. Press and hold 4 seconds for MENU, hold for 4 more seconds for ADVANCED MENU. 0000 is the password in both cases.
13. PINK! Allows the menu to be LOCKED. On off still works. Setting AUTO START etc in the menus can allow this to be made into a plug and play dumb charger with your own settings that a carer cannot change. Password to unlock is the same 0000. Unless you choose a different one. And you should!

[shirley_hkg]

How to go to the menus :⇒

①USER : press the menu button once.

②ADVANCE : press menu button for 4 seconds, prompted for password, (default 0000). Press again.

③FACTORY : press menu button for 4 seconds, prompted for password, (default 0000). Press 4 seconds to enter.

https://www.wheelchairdriver.com/board/ ... start=1740

[shirley_hkg]

If it's not a bother, can you make a video showing how you configure the zxd?

Though it looks hard to understand, it involves only TURN and PRESS.

TURN to scroll.
PRESS to select.
TURN to adjust.
PRESS again to confirm.

Actually, all will master in 5 minutes after playing it.

Don't be afraid that you mess it up. If so, just do it a self calibration, and it will bring it back to where we started.

youtu.be/yQqPA1dGQZE



4--wires mode looks very good for one who wants precision.

youtu.be/RxxoR5wGwbw

[Raro]

I really don't see it as complicated, it just requires a few turns and presses. I'm not a fan of interconnected things, but it would have made it tremendously easier for me to be able to manage it from my mobile phone just for physical reasons.

[Burgerman]

Once you configure it to do so, in the menu, you dont need to press anything at all. Connect. Plug into wall.

Auto start.

Menu locked.

Just like a mobility charger.

[shirley_hkg]

Need to clarify that Bluetooth is for software update (via Wechat, the chinese whatsapp).

Not for controlling through cell phone at the moment.

The develop team is ambitious and hopefully it will in the near future.

[Burgerman]

Yes.

Theres not a need really to control it via anything unless you use it for a few different jobs/uses.

I use one on chairs that have 3 different battery types, as well as a bench supply for testing, and powering other stuff. Such as 4 different PL8 chargers, nickel plating tank, hobby stuff. So change settings all the time. But its simple and takes seconds.

If you only have a single use then set it and forgetit. And even use the auto on, and auto start in the menu.

[shirley_hkg]

Couldn't agree more.

As a charger, one need to configure once and plug and go afterwards.

As a bench supply, one will have it within arm's reach and adjust it right away.

[Raro]

Yes.

Theres not a need really to control it via anything unless you use it for a few different jobs/uses.

That's what I was referring to only when I want to adjust it for a task although I hardly do anything anymore, later I might make a request for Shirley. In another post you have to show me how the pieces you galvanize look like.

[emilevirus]

I just received mine. It won't go past 25A. Any idea why?

I received the 120v version. It goes up to 120v and 25A

[LROBBINS]

At least on the old ones, 120 vs 220 V were not different versions, but different settings in the user-reprogrammable firmware.

[emilevirus]

At least on the old ones, 120 vs 220 V were not different versions, but different settings in the user-reprogrammable firmware.

No, I mean it can output 120V DC.

[Burgerman]

I dont know if the 25A/120v versions are the same physically as the 50A/60V versions.

I suspect they are and its just a settings thing.

In the menu inside, advanced menu, set it to 3000w, it likely already is, and to 50A and 60V instead and see what happens.

As far as AC input, they all work from 80V up to 260V or more.

[emilevirus]

I dont know if the 25A/120v versions are the same physically as the 50A/60V versions.

I suspect they are and its just a settings thing.

In the menu inside, advanced menu, set it to 3000w, it likely already is, and to 50A and 60V instead and see what happens.

As far as AC input, they all work from 80V up to 260V or more.

It's already at 3000w and can't go further than 25A

[Burgerman]

Because it cant if you allow it to do 120V. 120V x 25A = 3000W...

I suggested going into the menu and adjusting max volts to 60.
THEN in the same menu adjust the max current to 50.

Then come out of menu and take a look. Still 3000W but can you now select 50A?
You may need to run a calibration.

[emilevirus]

Where is that? I can't see voltage limit anywhere.

[Burgerman]

ADVANCED MENU.

I just tested that.
I changed mine from 50 to 25A
And from 60 to 120V and it allowed me to set that on the screen. So I can do 120V too... So hardware must be the same.


So hardware is the same?

ADVANCED MENU
Press MENU hold it for 4 seconds or more. When you see 0000 press for 4 seconds or more AGAIN (just wait). And thats the ADVANCED menu.

I set the alternate progress boot screen, fine tuned voltages (multimeter) and adjusted screen brightness once dimmed, etc too.

I also set FRONT FAN ALWAYS RUNS to off. And same on rear fan.
Now its silent at low power. And not filling with dust all day. Gets just barely detectably warm on sides of case.

[Burgerman]

When I am right you can thank me!

So these power suplies are really BOTH versions in one.
You have a 0-120A and 0-25A unit.
And a 0-60V and 0-50A unit.

Dont try setting 50A and 120V in that menu though as it will allow you to try and draw 6.6KW and likely end in smoke. Although its limited to 3000W out so maybe not.

This means you can set any figures between 0 and 120V maximum, and 0-50A maximim in the advanced menu, as long as it doesent exceed the 3000W limit.
Strt with 120V X 25A = 3000W
So 100V X 30A = 3000W OK too.
or 80V X 37.5A =3000W...
70V X 43A etc.
60V X 50A we already do.
Or whatever floats your boat.

[Burgerman]

①USER : press the menu button once.

②ADVANCE : press menu button for 4 seconds, prompted for password, (default 0000). Press again.

③FACTORY : press menu button for 4 seconds, prompted for password, (default 0000). Press 4 seconds to enter.

[emilevirus]

You were right. 50A now. Thanks

[biscuit]

This ZXD is great for my outdoor chair as I only use it every couple of days, less often at present and it is a schlep to babysit the cheap PSU. Programming it now, hope my brain has engaged. I will get another for my mom in a few months.

Much switching on and off and forgetting to save, so finding it reverted to how it was.

I have put in similar settings, transition current 0.03A not 0.15A, as I have a 33Ah gel battery.

If I lock it, how will I unlock it? If the button doesn't respond.

The timer, yours is set to 16 hours, is that 24-8 hours of absorption? Mine will take about 5 hours or less - so maybe 24-5? When does it start counting the 24 hours? Does it matter, even?

[biscuit]

it won't do that, will it? It will turn off after max. 24 hours!