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01-06-2012, 08:22 AM | #1 |
Not Yet Wild
Join Date: Jun 2011
Posts: 10
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Motor terminals a1 a2 s1 s2 on a series 48v ds
Hi
I'm trying to diagnose an intermittent no go condition on my 2001 ds. Can anyone explain the terminals on the motor and how they work in conjunction with the f/r switch (lever type)? A1: B+ A2 S1 ? S2 ? I figure these terminals have a specific purpose for reversing polarity, but it would be great if anyone could share more info on their function. Thanks |
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01-06-2012, 10:00 AM | #2 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,419
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Re: Motor terminals a1 a2 s1 s2 on a series 48v ds
Google is your friend on this subject.
http://www.animations.physics.unsw.e....html#DCmotors The motor can be trouble shot by testing for unwanted continuity (short) between the armature (A1 & A2) and the field (S1 & S2). Use a simple continuity test with your DVM. you should have continuity between A1 & A2 and again between S1 & S2 but not between any A and any S terminal. If the motor continuity test are good move on to testing other components. |
01-07-2012, 12:04 PM | #3 | |
Gone Wild
Join Date: Oct 2010
Location: Panama City, FL
Posts: 1,408
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Re: Motor terminals a1 a2 s1 s2 on a series 48v ds
Quote:
anywho, the switch reverses the flow of current to either the armature or the field. the block diagrams below show the reversal of current flow through the field. -sj |
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01-07-2012, 01:10 PM | #4 |
Stay thirsty my friends!
Join Date: Jan 2007
Location: Suburban Chicago
Posts: 24,292
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Re: Motor terminals a1 a2 s1 s2 on a series 48v ds
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01-07-2012, 01:43 PM | #5 |
nimda
Join Date: Jun 2007
Posts: 13,022
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Re: Motor terminals a1 a2 s1 s2 on a series 48v ds
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01-07-2012, 02:29 PM | #6 |
Not Yet Wild
Join Date: Jun 2011
Posts: 10
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Re: Motor terminals a1 a2 s1 s2 on a series 48v ds
Thanks guys. Thanks sonicj that's exactly what I was looking for.
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02-14-2012, 10:26 PM | #7 |
Not Yet Wild
Join Date: Feb 2012
Posts: 4
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Re: Motor terminals a1 a2 s1 s2 on a series 48v ds
Some other motor terminals called F1 & F2 besides A1 and A2. What's the different between S and F terminals?
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02-15-2012, 07:13 AM | #8 |
Medicare Recipient
Join Date: Jun 2011
Location: West Michigan
Posts: 3,541
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Re: Motor terminals a1 a2 s1 s2 on a series 48v ds
Typically, Shunt wound motors have terminals a1, a2, f1, f2 and Series wound motors have a1, a2, s1 and s2 . . . if that is bad info, someone will clear it up . . .
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05-26-2013, 07:34 AM | #9 |
Not Yet Wild
Join Date: Apr 2011
Posts: 6
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Re: Motor terminals a1 a2 s1 s2 on a series 48v ds
My motor has the A1, A2, S1 and S2 setup. I assume 2 are forward and 2 are reverse? But which is which?
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05-26-2013, 07:59 AM | #10 |
Gone Wild
Join Date: May 2012
Location: Rio Verde, Az
Posts: 7,193
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Re: Motor terminals a1 a2 s1 s2 on a series 48v ds
Wrong assumption. Current has to flow through both the armature (A) and field (S or F) to generate torque. Reversing the flow in one or the other will reverse the direction of rotation.
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