Vario EMV Electrical Charataristics

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Chris_C
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Vario EMV Electrical Charataristics

Post by Chris_C » 17 Sep 2013 05:53 pm

Does anyone have an EMV to hand?

I'd be much appreciative of knowing what the series resistance and inductance of the two coils is.

Also, does anyone (Anjo again maybe?) know why the green book of Wiring Diagrams (p76) shows a diode across gear up side? From the diagrams, it looks like a back EMF diode for the gear up coil is next to the coil, yet for the gear down coil is next to the tachometric relay section (as opposed to kick down section) of the Vacuum Control Unit (which we always incorrectly? call Tachometric Relay)

Ta all

(photo is Anjo's)
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volvodspec
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Re: Vario EMV Electrical Charataristics

Post by volvodspec » 17 Sep 2013 06:46 pm

the coils are around 33Ω

the diode is to protect the end transistor in the tachometric relay from induction

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Chris_C
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Re: Vario EMV Electrical Charataristics

Post by Chris_C » 17 Sep 2013 09:26 pm

Thanks :)
'89(F) 340 GL F7R (ex B172k) - Fake -> SBKV 300 Runner Up 08, 12 - NASLR Time 15.7secs
'03 S60 D5 SE, '91 (J) MX5
Ex:
'91(H) 340 GL B14.4E - Kar; '88(F) 360 GLT B200E - Jet -> BKV 300 Runner Up 09; '89(G) 360 GLT B200E - Beast

macplaxton
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Re: Vario EMV Electrical Charataristics

Post by macplaxton » 17 Sep 2013 09:51 pm

PM'd
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