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Chargery BMS, DCC (Solid State Contactor) thread.

Just another question to the DCC experts, maybe I missed it, but the thread is quite long now
- When the DCC is shut-off, you should be able to measure 7,5kOhms?
- It always provide a voltage!

=> This will cause the inverter so see always "see" the battery. But if power is requested it will fail. Is there any solution for this problem?
 
Testing the DCC to ensure it is OK the resistance between two terminals, should be 7.5K ohm, meaning the DCC is ok, you can power it.
DCC Installed on the Negative Side will shutoff fully.
DCC installed on the Positive positive side (with ISO Board in place ONLY) will not completely cutoff and provide low amp voltage. which is supposed to serve Precharge needs.

Per Jason, Nov.2020.
 
Testing the DCC to ensure it is OK the resistance between two terminals, should be 7.5K ohm, meaning the DCC is ok, you can power it.
DCC Installed on the Negative Side will shutoff fully.
DCC installed on the Positive positive side (with ISO Board in place ONLY) will not completely cutoff and provide low amp voltage. which is supposed to serve Precharge needs.

Per Jason, Nov.2020.
I am designing the layout configuration etc. for my project and still struggling if I should use them (DCC) on the Neg. or Positive side! This detail has also been running through my head as complete shut off isn't big issue as I will also have manual on/off switch.
 
I am designing the layout configuration etc. for my project and still struggling if I should use them (DCC) on the Neg. or Positive side! This detail has also been running through my head as complete shut off isn't big issue as I will also have manual on/off switch.
I'm completing a Building (structure) and some other stuff ATM and that will its own solar system. Midnite Solar Kid SCC and more. But I am also about to complete the Final Phase of my Main System and will be switching to DCC's on (+) side. I was waiting on the new P & A but my time for that has run out now. Sorry NDA prevents further discussion on P & A Series but when they are available (post chip shortage) some are gonna plunked on their butts... LOL Wink, Wink, Nudge, Nudge, say what.... hehehe.
 
Testing the DCC to ensure it is OK the resistance between two terminals, should be 7.5K ohm, meaning the DCC is ok, you can power it.
DCC Installed on the Negative Side will shutoff fully.
DCC installed on the Positive positive side (with ISO Board in place ONLY) will not completely cutoff and provide low amp voltage. which is supposed to serve Precharge needs.

Per Jason, Nov.2020.

ok this is intressting. In the manual 1.0 the negativ installation for common port is shown:

1627668148708.png
In Version 1.1 it's on the positve side using he ISO-Board

1627668227052.png

Would it be possible to have precharge using the delay board ?

1627668298664.png

So if you connect to negative side, just use the delay board + additional relais + load resister e.g. 5Ohms to precharge ?
 
ok this is intressting. In the manual 1.0 the negativ installation for common port is shown:

View attachment 58211
In Version 1.1 it's on the positve side using he ISO-Board

View attachment 58212

Would it be possible to have precharge using the delay board ?

View attachment 58213

So if you connect to negative side, just use the delay board + additional relais + load resister e.g. 5Ohms to precharge ?
Cant really answer your question but wanted to through this out there if you connect your DCC to the positive side make sure to use the ISO board. Originally was to be connected to Neg. and then this board was developed for Positive hook up. I'll be running a DCC 300 and DCC 100 in a separate configuration.
 
I am designing the layout configuration etc. for my project and still struggling if I should use them (DCC) on the Neg. or Positive side! This detail has also been running through my head as complete shut off isn't big issue as I will also have manual on/off switch.
It doesn't matter positive or negative side for DCC. But if you choose positive side, you must use the ISO board.
 
First time I hear about the Chargery DCC. I rapidly went through the 20 pages of this thread and I may have missed some details.
I am used to Electromagnetic Relays (EMR) and although temptation was great, I never installed a SSR on a charge or load bus... due to heat dissipation at high Amps.

This DCC has amazing specifications for a SSR. I am now considering getting one for my battery isolation (what you call here common port) in replacement of a Blue Sea L-series 250A that consumes 0.3A on the control circuit. On top of the SSR standard benefits, the main reasons are:
- it's relatively low ON resistance (still higher than EMR, but I can live with it as high current does not last long)
- it is bidirectional
- precharge circuit

Is it too good to be true? In this thread some people seem to have some reserve but in general terms with no specifics. Does anyone has good reason why not to use this device?

I will not be using it with a Chargery BMS.

I would use it as the last line of defense to protect the battery in case of failure of all other earlier defense mechanisms triggered by the BMS at different voltages (visual and audible alarms, cut the chargers, cut the inverter...).
I will pilot it with a single relay output of my BMS. I would configure it as a dry NC relay output that I can wire to inject 12V to the DCC. It is opened by both HVC and LVC. I see on the picture that the control port has four pins (Driven Port?) but I have only two wires to control it - can that work? If not I will have to use two different relay outputs (which is a bit stupid to control a single DCC), and have one triggered by HVC, and the other one by LVC.

I would install it on the high side and I read that in that case I need an ISO board for precharge to work. Not sure what is on that board, but would I need it considering that I do not connect to a Chargery BMS?
 
First time I hear about the Chargery DCC. I rapidly went through the 20 pages of this thread and I may have missed some details.
I am used to Electromagnetic Relays (EMR) and although temptation was great, I never installed a SSR on a charge or load bus... due to heat dissipation at high Amps.

This DCC has amazing specifications for a SSR. I am now considering getting one for my battery isolation (what you call here common port) in replacement of a Blue Sea L-series 250A that consumes 0.3A on the control circuit. On top of the SSR standard benefits, the main reasons are:
- it's relatively low ON resistance (still higher than EMR, but I can live with it as high current does not last long)
- it is bidirectional
- precharge circuit

Is it too good to be true? In this thread some people seem to have some reserve but in general terms with no specifics. Does anyone has good reason why not to use this device?

I will not be using it with a Chargery BMS.

I would use it as the last line of defense to protect the battery in case of failure of all other earlier defense mechanisms triggered by the BMS at different voltages (visual and audible alarms, cut the chargers, cut the inverter...).
I will pilot it with a single relay output of my BMS. I would configure it as a dry NC relay output that I can wire to inject 12V to the DCC. It is opened by both HVC and LVC. I see on the picture that the control port has four pins (Driven Port?) but I have only two wires to control it - can that work? If not I will have to use two different relay outputs (which is a bit stupid to control a single DCC), and have one triggered by HVC, and the other one by LVC.

I would install it on the high side and I read that in that case I need an ISO board for precharge to work. Not sure what is on that board, but would I need it considering that I do not connect to a Chargery BMS?
I can not answer your questions not sure how well it will get answered here unless someone has tried to do some testing with them in regards to another BMS.
 
First time I hear about the Chargery DCC. I rapidly went through the 20 pages of this thread and I may have missed some details.
I am used to Electromagnetic Relays (EMR) and although temptation was great, I never installed a SSR on a charge or load bus... due to heat dissipation at high Amps.

This DCC has amazing specifications for a SSR. I am now considering getting one for my battery isolation (what you call here common port) in replacement of a Blue Sea L-series 250A that consumes 0.3A on the control circuit. On top of the SSR standard benefits, the main reasons are:
- it's relatively low ON resistance (still higher than EMR, but I can live with it as high current does not last long)
- it is bidirectional
- precharge circuit

Is it too good to be true? In this thread some people seem to have some reserve but in general terms with no specifics. Does anyone has good reason why not to use this device?

I will not be using it with a Chargery BMS.

I would use it as the last line of defense to protect the battery in case of failure of all other earlier defense mechanisms triggered by the BMS at different voltages (visual and audible alarms, cut the chargers, cut the inverter...).
I will pilot it with a single relay output of my BMS. I would configure it as a dry NC relay output that I can wire to inject 12V to the DCC. It is opened by both HVC and LVC. I see on the picture that the control port has four pins (Driven Port?) but I have only two wires to control it - can that work? If not I will have to use two different relay outputs (which is a bit stupid to control a single DCC), and have one triggered by HVC, and the other one by LVC.

I would install it on the high side and I read that in that case I need an ISO board for precharge to work. Not sure what is on that board, but would I need it considering that I do not connect to a Chargery BMS?
I have 4 of them.... one that is shorted in on direction, two that will not turn on (the manufacturer believes that I have a bad ISO board that damaged the two of them) and one in the box new that I simply refuse to use. Yes it has good specifications, it is NOT a robust design. Good luck.
 
Yet I have 4 Version 1.0 DCC's (1st release) and one Version 1.1. and no problems with the DCC 300's. I've even modified each casing by tapping screws into the side (after disassembly) to add L-Brackets for mounting the DCC to a Board with the Shunt. I've pushed 200A through them and pulled 250A the DCC's did get warm but Not Hot and the fan on them kicked on for a few moments at a time.

We have to remember that Jason developed the DCC's for us based on the info we provided and with a very fast turnaround from idea-sketch-design to production. Also, people may not be aware that the Chargery "T" Series and previous ones were targetted to the Light EV Space and not necessarily for ESS (Energy Storage Systems) Use, as it is generic enough for that.

This is the thread that Hatched the DCC SSR

The Chargery Family was more or less introduced by me in this Thread on January 8,2020 :

Jason has been very busy with the new P & B Series BMS' and related gear. Chip Supply issues have been a bugger for them too.
 
Yet I have 4 Version 1.0 DCC's (1st release) and one Version 1.1. and no problems with the DCC 300's. I've even modified each casing by tapping screws into the side (after disassembly) to add L-Brackets for mounting the DCC to a Board with the Shunt. I've pushed 200A through them and pulled 250A the DCC's did get warm but Not Hot and the fan on them kicked on for a few moments at a time.

We have to remember that Jason developed the DCC's for us based on the info we provided and with a very fast turnaround from idea-sketch-design to production. Also, people may not be aware that the Chargery "T" Series and previous ones were targetted to the Light EV Space and not necessarily for ESS (Energy Storage Systems) Use, as it is generic enough for that.

This is the thread that Hatched the DCC SSR

The Chargery Family was more or less introduced by me in this Thread on January 8,2020 :

Jason has been very busy with the new P & B Series BMS' and related gear. Chip Supply issues have been a bugger for them too.
I wish more details where available for the new BMS's. I hope that if I decide to switch the current external screen setup will still be optioned and wired about the same. If not it would suck as how I have this built into my Solar Generator. Still yet to use my DCC 300 & DCC 100.
Like you said I also modded mine some nothing with mounts yet ans was thinking of using VBH tap. But I did mod the front face as I have the version 1,0 and short leads. I cut it and put lots of hot glue on any metal surrounding areas.
 
I have 4 of them.... one that is shorted in on direction, two that will not turn on (the manufacturer believes that I have a bad ISO board that damaged the two of them) and one in the box new that I simply refuse to use. Yes it has good specifications, it is NOT a robust design. Good luck.
Thanks, I am not in a rush and will wait a bit for the product to stabilize... keeping an eye on this thread.
 
@Steve_S

Being in the process of replacing my MOSFET BMS with a Chargery,I'm currently in the contactor selection process , ironically I had already ordered a Tyco Kilovac EV200 AAANA, then i discovered this thread, which brought into question the use of the Chargery DCC as an alternative, although it goes against my fundemental belief that electro mechanical relays are better from a fail safe perspective.

The DCC has a slightly lower holding consumption than the Kilovac, however the losses under load with the DCC appear to be greater so the tradeoff is in favor of the Kilovac, or am I missing something in the rationale and intent behind you making the switch.

As there are pros and cons to both methods, my interest is what factors convinced you to abandon the Kilovac method in favor of something which has more negative boxes checked in my pro/con evaluation check list.
 
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For me, a slight overhead is just an accepted part of the game simply put, so many folks trip over the overhead of running a system. The DCC's suit my purpose quite nicely with the low consumption, nice clean packaging. I cannot say I've noted any significant losses. As for negative check boxes, I'm not sure what you mean really.
 
@Steve_S

Being in the process of replacing my MOSFET BMS with a Chargery,I'm currently in the contactor selection process , ironically I have already ordered a Tyco Kilovac EV200 AAANA, then i discovered this thread, which brought into question the use of the Chargery DCC as an alternative, although it goes against my fundemental belief that electro mechanical relays are better from a fail safe perspective.

The DCC has a slightly lower holding consumption than the Kilovac, however the losses under load with the DCC appear to be greater so the tradeoff is in favor of the Kilovac, or am I missing something in the rationale and intent behind you making the switch.

As there are pros and cons to both methods, my interest is what factors convinced you to abandon the Kilovac method in favor of something which has more negative boxes checked in my pro/con evaluation check list.
I have run that contactor in separate port configuration using a Chargery. Are you setting up a common port, or separate port? Due to the inrush amps of 3.8 amps per contactor, I could only trigger one contactor. (Two would reboot the Chargery) The Chargery output control is rated for 3 amps for both circuits. To get around this, I first used a timer board on one (worked) and then settled on a micro relay.
I currently use that contactor on a ElectroDacus as a disconnect the LFP from my FLA bank. I'm using a SSR to trigger it.
 
For me, a slight overhead is just an accepted part of the game simply put, so many folks trip over the overhead of running a system. The DCC's suit my purpose quite nicely with the low consumption, nice clean packaging. I cannot say I've noted any significant losses. As for negative check boxes, I'm not sure what you mean really.
Whenever making a decision between two or more options I make a list with columns like spread sheet, then check against attributes to determine which is the better method, product or whatever, just my way of avoiding mental clutter thereby reducing the possibility of making the wrong decision. Sometimes through ignorance or lack of insight this method fails me, hense the decision to switch out the current BMS, after seeing the correlation between battery failures and MOSFET control BMS's.

I have run that contactor in separate port configuration using a Chargery. Are you setting up a common port, or separate port? Due to the inrush amps of 3.8 amps per contactor, I could only trigger one contactor. (Two would reboot the Chargery) The Chargery output control is rated for 3 amps for both circuits. To get around this, I first used a timer board on one (worked) and then settled on a micro relay.
I currently use that contactor on a ElectroDacus as a disconnect the LFP from my FLA bank. I'm using a SSR to trigger it.

My plan is to use both ports with a slight variation, the charging port will drive a small relay, over a NO contact of that relay will be a resistor loop connected across the RTS input of the SCC, this will cause an out or parameter fault when the relay drops, thus disabling the SCC , a manual reset is required to restore charging.

The load contactor, whichever I decide to use, must for my purposes be a one shot fail safe configuration requiring manual reset as well, primarily because I'm often away and would rather return to a partially discharged battery, than the remains of a catastrophic battery failure, to avoid going of on an off topic tangent I will create a seperate thread (Fail safe BMS? ) on this. please do not ask follow up questions here.


The DCC is a convenient plug and play setup which includes optional features which make it very attractive, so long as it meets the design criteria of the user, unfortunately as my personal needs demand a divorce from semiconductor disconnect, I haven't at this point, found a way to circumvent that worst case scenario using the DCC.
 
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