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Thread: Mamba X & 1406-1900kv Issue

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Old 05-17-2018, 09:22 PM   #1
I wanna be Dave
Join Date: Jul 2005
Location: North Idaho
Posts: 2,673
Default Mamba X & 1406-1900kv Issue

Just bought my second Mamba X system. The first one bolted right up to my Bomber and worked with no issues, the new one is having issues...

I wired everything up, programmed it with the new B-Link, uploaded the new profile, turned it on and the troubles started...

Settings changed from default:

Reverse Type: Crawler reverse
BEC Voltage: 7.5
Brake amount: 100%
Drag Brake: 100% Crawler, Full on

Reverse Percentage: 100%

When it is installed in my TRX4, controlled by a DX5R 6-ch RX, it has no power with the sensor wire installed, and just stutters and will not turn the drive train. When I remove the sensor wire it has power and acts normally. Also, with the sensor wire attached the motor gets hot. I have unmounted the motor and without it installed it will spin the motor with the sensor wire attached, but it stutters badly and stops spinning after about four or five revolutions, and the motor gets hot. Remove the sensor wire and it spins up like the motor should.

My first inclination is to replace the sensor wire, but I really do not understand why it would make the motor hot.

The drive train is free-running.

Any thoughts?


Well, I just figured out where I screwed up....

When I traced the wires from the motor somehow I crossed A and B, I even marked them with the Sharpie wrong (dumbass). Swapped the wires and it works like it should....
mikemcE, durok, Teng and 1 others like this.

Last edited by Greatscott; 05-17-2018 at 09:49 PM.
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Old 05-17-2018, 10:08 PM   #2
Rock Crawler
Join Date: May 2016
Location: SoWIs
Posts: 576
Default Re: Mamba X & 1406-1900kv Issue

You sir got really lucky, this can fry the motor since it keeps 2 windings at full 100%. Maybe the ESC's firmware reduces this now.
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Old 05-18-2018, 06:13 PM   #3
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Posts: 649
Default Re: Mamba X & 1406-1900kv Issue

I bet you don't make that mistake again! Glad it's working.
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Old 05-18-2018, 09:49 PM   #4
I wanna be Dave
Join Date: Jul 2005
Location: North Idaho
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Default Re: Mamba X & 1406-1900kv Issue

Originally Posted by Inspector86 View Post
I bet you don't make that mistake again! Glad it's working.
The REALLY dumb thing is I traced out each wire and labeled the ESC end with a Sharpie, somehow I swapped a wire.
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