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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV.



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Old 10-21-2011, 12:08 PM   #11
JohnnieB
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Join Date: Jun 2011
Location: West Virginia
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Default Re: Help

Quote:
Originally Posted by twp5253 View Post
So, If I read this correctly....it has been awhile since I have done my setup. Your showing 4 SPST Solenoids to do the F/R operation? And, what would happen if one of them hung up during operation? Isn't that the benefit of the Albright SW202 or perhaps they could hang up too? Have you seen the Gigavac 600+amp solenoids? GX-16? Thanks, sorry for the hijak
The drawing is from a Curtis 1204/5 controller manual I found on line.
Count the solenoid coils on the right side of page. There are only three of them.
I believe they are using two DPST solenoids for F & R and a SPST for Main.

I've never had the need or opportunity to design or build one, so I'm not up to speed on the specific solenoids used, but welded contacts or any control circuit fault that allowed both F and R current paths to be completed at same time, would definitely cause some spitzen und sparkin.

If I did design one, I'd probably go with a single heavy duty DPDT solenoid, arc suppress the contacts and delay the closure of the main contactor until after the F/R solenoid was closed to avoid any contact bounce issues.
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