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  #101  
Old 05-04-2012, 07:14 AM
crashedup crashedup is offline
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Default Re: EV High Voltage, Turning it on and off:

I DID READ THE LINK! WHAT I MEANT WAS!! Is there an input specifically for the ignition switch on the controller? And for maintenance did you put in some type of cutt off switch between pack and the rest of the system?
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  #102  
Old 05-04-2012, 08:33 AM
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Default Re: EV High Voltage, Turning it on and off:

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Originally Posted by crashedup View Post
I DID READ THE LINK! WHAT I MEANT WAS!! Is there an input specifically for the ignition switch on the controller? And for maintenance did you put in some type of cutt off switch between pack and the rest of the system?
The input for the ignition switch is the key. Or maybe I'm not understanding your question? All you need to do is provide key on 12v power to the controller. It handles the rest. The Soliton is unique in that it has the contractors built it, so the pack cut off is not so obvious to the eye.

Most of us also have some kind of manual pack cut off (like a circuit breaker), but it's not used in daily usage. Just for maintenance or long term (anything over a few days, in my case) non-use.
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  #103  
Old 05-04-2012, 09:55 AM
crashedup crashedup is offline
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Default Re: EV High Voltage, Turning it on and off:

Ok thats it! I didnt know it was that simple.
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  #104  
Old 05-04-2012, 09:57 AM
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Default Re: EV High Voltage, Turning it on and off:

The two contactors inside the Soliton1 needed to be energized by 12v. If you cut the 12v, you cut the pack voltage to the controller.
In my case, this is related to the key switch.
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  #105  
Old 08-23-2012, 06:14 AM
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mizlplix mizlplix is offline
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Default Re: EV High Voltage, Turning it on and off:

My 1238R Curtis controller does the same thing, it just needs a small, external relay to do this (it is not internal). +1 point to Evenetics for friendly design. -1 point to Curtis for being "old school".


OK, In my world, an "emergency" disconnect is just that. To be used in an emergency. It is not something I would use to turn a current load on and off several times per day.

SO, as long as the contact points are far enough apart to actually interrupt the current, I am not concerned if my switch has the correct voltage rating.

My pack disconnect switch is rated at 650 amps but at 48VDC. I expect it to have a dramatic event if ever called on to interrupt 130VDC (if there is a load on it). I have designed my switch accordingly. It is operated through a 24" long piece of PVC tubing. My hand is 2 feet away from the switch.


A charred hole where the switch used to be is not a real problem because it stopped a larger event from happening.

It only cost me $53.00

Miz

Last edited by mizlplix; 10-05-2012 at 01:59 PM.
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  #106  
Old 10-26-2012, 09:24 PM
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Default Re: EV High Voltage, Turning it on and off:

I built an emergency cut off and it breaks the pack in the middle. Would it be better if it was on the end of the battery pack? The cable is hooked to a modified clutch peddle.
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  #107  
Old 02-10-2014, 08:12 AM
Lipo Louis Lipo Louis is offline
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Default Re: EV High Voltage, Turning it on and off:

I will run my soliton 1 at 340v and use the max 900/1000A

So I do not need a relay between the pack and controller because the Soltion already has the contactors inside ? Then I don't need a relay at the whole wiring ?
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  #108  
Old 02-11-2014, 09:20 AM
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Default Re: EV High Voltage, Turning it on and off:

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Originally Posted by Lipo Louis View Post
I will run my soliton 1 at 340v and use the max 900/1000A

So I do not need a relay between the pack and controller because the Soltion already has the contactors inside ? Then I don't need a relay at the whole wiring ?
You don't need an external contactor with a Soliton but a lot of people feel like it is a good idea as an added level of safety. I have one partly for that reason and partly just to disconnect the traction pack from the DC-DC when the car is turned off. If my charger is plugged in then this contactor won't close. When my key is off the radio and clock still get power from a small 8AH battery. They are the only things normally powered with the key off. There are a few other things like the interior lights that come on if the door is opened and the headlights would still work for about 45 minutes with the key off.
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  #109  
Old 02-12-2014, 02:43 AM
Lipo Louis Lipo Louis is offline
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Default Re: EV High Voltage, Turning it on and off:

Thank you.

I like the idea of disconnecting the 350v pack but is it possible to switch it of with a big main switch, ofcourse there are those 12v 1000A switches they probably will work too for this. But are there any better options ?
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  #110  
Old 02-12-2014, 05:45 AM
EV-propulsion.com EV-propulsion.com is offline
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Default Re: EV High Voltage, Turning it on and off:

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Originally Posted by Lipo Louis View Post
Thank you.

I like the idea of disconnecting the 350v pack but is it possible to switch it of with a big main switch, ofcourse there are those 12v 1000A switches they probably will work too for this. But are there any better options ?
We just got some of these manual switches, rated for 1000 volts and 400a continuous, peak of 2000a for 1 minute. In standard form they are not made to "make or break" over 100 volts (with a load) however. It is a switch rated for our voltages and amperages generally used in conversions though.
Mike
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File Type: jpg disconnect specs.JPG (37.2 KB, 4 views)

Last edited by EV-propulsion.com; 02-12-2014 at 05:48 AM.
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circuit breaker, contactor, fuse, high voltage, precharge

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