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MEP-007B DC Relay Control Issue

peapvp

Well-known member
Steel Soldiers Supporter
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Location
Basehor, KS
On the new / replacement SW200, can you tell us
IMG_0341.png
If you have continuity between Terminals M and N and P?
If so, then M and N are your com, TB L your field flash (NO S9-1) and TB P your crank disconnect (NC S9-1)

Edit: You may have to power the unit up with 24V for the relays to assume their correct state.
In todays world we use single pole single throw relays with no contact and power them up to turn into a nc contact - inverted logic
 
Last edited:

SLTRAM98

New member
27
23
3
Location
North Carolina
All fixed - runs great now.

I have attached the final wire diagram, design worked as presented previously, I filled it out with more details as I finalized the install. THIS SW-200B DIAGRAM WORKS - I am pretty confident the other one will not work (not trying to disregard someone's hard work, just don't want someone to do it and have issues.)

Notes:
1) I kept the internal relay, it controls fuel shutdown from LOP and HCT thru the Tan wire.
2) I kept the OEM military canon plugs, no need to cut ANYTHING I learned, just unscrew the top panel of the OEM S-9 and swap terminal screws.
3) DIP switch settings inside are VERY important, make sure you open the SW200 BEFORE terminating all the wires and switch as needed.
4) the relay I used is WAY overkill, I have a bunch of them in my garage and didn't want to buy one so used what I have, you only need a simple one on amazon. Must be 24VDC capable contact. It controls the disconnect to the starter.
5) The SW-200b I bought off ebay used for $28, do not buy them new ( crazy $1200 !!!!).

Let me know if you have questions.
 

Attachments

SLTRAM98

New member
27
23
3
Location
North Carolina
Pictures of my work in progress and final.

Video:
 

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