To: | CBQ@groups.io |
---|---|
Subject: | Re: [CBQ] Dynamic Brakes |
From: | "Tom Mack via Groups.Io" <thommack=yahoo.com@groups.io> |
Date: | Fri, 28 Feb 2020 13:56:22 -0800 |
Delivered-to: | unknown |
Delivered-to: | archives@nauer.org |
Delivered-to: | mailing list CBQ@groups.io |
Dkim-signature: | v=1; a=rsa-sha256; c=relaxed/simple; d=groups.io; q=dns/txt; s=20140610; t=1582926984; bh=tGEiKkz/V2EYegIsj7/i2X7GejIb2FCdN5y8jWXN2ZQ=; h=Content-Type:Date:From:Reply-To:Subject:To; b=k6FBAK4j5+daAQGDiVwXgxwPowoAbbbQl8d1BBk34FZtABWOCJ2F89jCY5+XE4Hmc34 nhUcQI5qnEtAXw+jwG96taKhIOKqC6ewSFxoBfnhe9r7AhG29Fhgb/2EXmeDp5llfIRHA 53CeHVme9apu/jo9NHPhuzyGYYeXS2/yzDU= |
In-reply-to: | <88ec31ec-d289-b8c9-10ad-5f22f850478f@jimsjunction.com> |
List-id: | <CBQ.groups.io> |
List-unsubscribe: | <https://groups.io/g/CBQ/unsub> |
Mailing-list: | list CBQ@groups.io; contact CBQ+owner@groups.io |
References: | <88ec31ec-d289-b8c9-10ad-5f22f850478f@jimsjunction.com> |
Reply-to: | CBQ@groups.io |
Sender: | CBQ@groups.io |
User-agent: | GROUPS.IO Web Poster |
On Fri, Feb 28, 2020 at 11:41 AM, John Olson wrote:Since all of the Q's freight F-units (including FT's) were delivered with Dynamic Brakes and none of the GP-7's or GP-9's were- when the 'Q' spliced one or more of these GP's in the middle of a 4-unit set of F's, for extra horsepower, could the Dynamic Brakes still be used... and would it activate on all four of the F-units?Yes. Dynamic braking is controlled on MU cable pins 17 (Dynamic Brake Control), 20 (Dynamic Brake Warning), 21 (Dynamic Brake Interlock), and 24 (Dynamic Brake Excitation). All units with MU, whether they have DB or not, should pass all MU signals through. Thus a non-DB unit would not affect the DB on any other units in the string. The problem is if you have a non-DB equipped diesel leading a consist with DB equipped locomotives. In that case you disable DB on the entire consist since the non-DB equipped unit does not have the DB lever or wiring to control DB. Hence very seldom would a railroad that counted on DB put a non-DB unit in the lead. -- Tom Mack Cincinnati, OH _._,_._,_
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#59040) |
Reply To Group
| Reply To Sender
|
Mute This Topic
| New Topic _._,_._,_
|
<Prev in Thread] | Current Thread | [Next in Thread> |
---|---|---|
|
Previous by Date: | Re: [CBQ] Wooden RPO Photos & Drawings, Douglas Harding |
---|---|
Next by Date: | Re: [CBQ] CB&Q Valuation 1927 and corporate history, Rupert Gamlen |
Previous by Thread: | [CBQ] Dynamic Brakes, John Olson |
Next by Thread: | Re: [CBQ] Dynamic Brakes, jim cunningham |
Indexes: | [Date] [Thread] [Top] [All Lists] |