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| Re: SMEE (Re: Questions from the eager & curious) (860419) | |||
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Re: SMEE (Re: Questions from the eager & curious) |
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Posted by straphanger9 on Wed Nov 18 10:45:50 2009, in response to Re: SMEE (Re: Questions from the eager & curious), posted by BLE-NIMX on Wed Nov 18 09:10:48 2009. Good point. I should also add that I didn't really describe the dynamic brake setup correctly in my previous post:The T/O moving the brake handle to service brake energizes a dynamic brake wire, which connects the already spinning motor to resistance grids, and therefore places an "electrical load" on them When the controller is placed into coast, this sets up the dynamic brake by first energizing the spotting wire. Then when the handle is moved to the service brake range, the dynamic brake wire gets energized and you have dynamic braking. The extra step of the spotting wire makes for a smoother and more timely response when brake is pulled. |
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