Help to choose right setup

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Arnis
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Re: Help to choose right setup

Post by Arnis »

I really dont get what is invert....
what should be inverted

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Re: Help to choose right setup

Post by STC »

In your example nothing should be inverted. Only if your stepper motor will move in wrong direction, then you should set inversion for SM_DIR.
Note: you need to connect a pull down resistor between IE and ground. 1...5k resistor. In opposite case VT1 will not turn off.
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Re: Help to choose right setup

Post by Arnis »

What resistance should be for spark plug cables.
If I use cooper cable and cut my lenghts I need then I need spark plug caps with 1,2,3 or 5kom resistance? Or it dose not mather?
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Re: Help to choose right setup

Post by STC »

At least, either wires or spark plugs should have resistance. 5k is Ok.
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Re: Help to choose right setup

Post by Arnis »

hi,
today I managed to start the engine with secu!
engine works very nice !
there are some things to fix, but generally very happy!
1. tachometer is not reacting . circuit with diodes and resistor needs to find right resistor ( I guess..)or use Hall_out
2. when I turn on ignition secu wakes up. fuell pump starts for 5sec. crank engine and all works, but when I turn off ignition engine still runs! had to disconnect secu from ignition wire........ Strange.....Or Im doing something wrong ....
and I need signal for CE +12v. so if i add 47k resistor between 12v and ce output is it OK?
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Re: Help to choose right setup

Post by STC »

1. tachometer is not reacting . circuit with diodes and resistor needs to find right resistor ( I guess..)or use Hall_out
Yes
and I need signal for CE +12v. so if i add 47k resistor between 12v and ce output is it OK?
Yes, it will be ok.
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Arnis
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Re: Help to choose right setup

Post by Arnis »

Image
YOu mean like this.
Could not get it working right with diodes. I got free outputs so Ill try hall_out
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Re: Help to choose right setup

Post by STC »

Yes, you need that resistor, because IE is a high-side output and has no internal pull down resistor.
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Re: Help to choose right setup

Post by Arnis »

Ok. I made circuit, but taho is 160 rpm secu 1200?
And ignition cable when i add small lamp to test if acc turns off it dose but without lamp dash gets acc off but engine runs
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Re: Help to choose right setup

Post by STC »

Try to change pulse width or set inversion check for that output.
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