 |
|
|
|
 |
|
|
|
|
RC-Monster Carbon Fiber
Offline
Posts: 132
Join Date: Jan 2008
Location: Quebec Canada
|
MMM with NO tone and nothing sended to the motor!!! ? -
10.06.2008, 10:52 AM
I tried to calibrate my MMM ( first one, V2).
When I plugged the batts, (4s2p4000)i saw a very little wite smoke comming out near the del light.
I unplug evrythingright away.
When I tried again, there was no tone at all from the MMM BUT seem to calibrate correctly exept sending signal to the motor. ( it's suppose to vibrate a little, but notting!!! When i pull the trigger, green and yellow del light, full brake, red and yellow light, neutral, yellow only, BUT the motor is not spinning at all !!!
Brand new 9xl motor.
Is there a way to verify if a brushless motor is still good like when we connect + and - to a 9v to a brushed motor to see if he's still spinning?
Thanks
|
|
|
|
|
|
|
|
RC-Monster Mod
Offline
Posts: 6,597
Join Date: Apr 2007
Location: NJ
|
10.06.2008, 11:47 AM
You can connect a 1.5v AA battery across each phase it should turn the motor/magnet over to the next phase.
|
|
|
|
|
|
|
|
RC-Monster Carbon Fiber
Offline
Posts: 394
Join Date: Mar 2005
Location: ny
|
10.06.2008, 11:52 AM
if you saw smoke i would think a call to castle is in order?
|
|
|
|
|
|
|
|
RC-Monster Carbon Fiber
Offline
Posts: 136
Join Date: Aug 2008
Location: Metro Detroit
|
10.06.2008, 01:55 PM
Quote:
Originally Posted by Emaxx_Quebec
I tried to calibrate my MMM ( first one, V2).
When I plugged the batts, (4s2p4000)i saw a very little wite smoke comming out near the del light.
I unplug evrythingright away.
When I tried again, there was no tone at all from the MMM BUT seem to calibrate correctly exept sending signal to the motor. ( it's suppose to vibrate a little, but notting!!! When i pull the trigger, green and yellow del light, full brake, red and yellow light, neutral, yellow only, BUT the motor is not spinning at all !!!
Brand new 9xl motor.
Is there a way to verify if a brushless motor is still good like when we connect + and - to a 9v to a brushed motor to see if he's still spinning?
Thanks
|
That, I would say, is the tell tale sign of a Burnt BEC circuit.
|
|
|
|
|
|
|
|
RC-Monster Carbon Fiber
Offline
Posts: 132
Join Date: Jan 2008
Location: Quebec Canada
|
10.06.2008, 02:10 PM
Quote:
|
That, I would say, is the tell tale sign of a Burnt BEC circuit.
|
Yes but the servo still working and the motor doesn't 
I'll give CC a call tonight.
|
|
|
|
|
|
|
|
RC-Monster Carbon Fiber
Offline
Posts: 136
Join Date: Aug 2008
Location: Metro Detroit
|
10.06.2008, 02:50 PM
Quote:
Originally Posted by Emaxx_Quebec
Yes but the servo still working and the motor doesn't 
I'll give CC a call tonight.
|
If you got smoke.. Something burnt.
No tones and nothing to the motor, try checking your solder joints in the wiress to the motor. might have a cold joint.
|
|
|
|
|
|
|
|
RC-Monster Brushless
Offline
Posts: 2,077
Join Date: May 2007
Location: Australia
|
10.06.2008, 03:22 PM
Have you got the plug from the MMM plugged into the RX the correct way around?
|
|
|
|
|
|
|
|
RC-Monster Carbon Fiber
Offline
Posts: 132
Join Date: Jan 2008
Location: Quebec Canada
|
10.06.2008, 03:28 PM
Same than my servo.
Is the way it connect to RX change something on the srevo. ( turn right and ge left ...)
|
|
|
|
|
|
|
|
RC-Monster Admin
Offline
Posts: 14,609
Join Date: Nov 2005
Location: Des Moines, IA
|
10.06.2008, 03:29 PM
Quote:
Originally Posted by Emaxx_Quebec
Same than my servo.
Is the way it connect to RX change something on the srevo. ( turn right and ge left ...)
|
Servo going the wrong way is fixed by reversing the radio steering channel...
|
|
|
|
|
|
|
|
RC-Monster Carbon Fiber
Offline
Posts: 132
Join Date: Jan 2008
Location: Quebec Canada
|
10.06.2008, 03:38 PM
Yes brand new setup.
Quote:
|
While you're at it, While you're at it, do a continuity test between each motor phase and the motor can (there should be ~infinite resistance).
|
Help me to check that tonight.
Just to be sure, by you mean each wire.
red to wite, wite to black, black to red.
How I check that. That's my first brushless!
Thanks.
|
|
|
|
|
|
|
|
RC-Monster Mod
Offline
Posts: 6,597
Join Date: Apr 2007
Location: NJ
|
10.06.2008, 03:25 PM
It sounds more like shorted phases and FET failure from the connectors against the heatsink. The MMM needs to go back - I thought the issue was more if it took the motor out in the process...
|
|
|
|
|
|
|
|
RC-Monster Admin
Offline
Posts: 14,609
Join Date: Nov 2005
Location: Des Moines, IA
|
10.06.2008, 03:28 PM
Brand new setup? Were the motor screws too long? If two screws bit into the coils, the motor can could short out the ESC blowing a phase. No matter what, I would have the ESC looked at if there was smoke in ANY area!
While you're at it, do a continuity test between each motor phase and the motor can (there should be ~infinite resistance).
|
|
|
|
|
|
|
|
RC-Monster Admin
Offline
Posts: 14,609
Join Date: Nov 2005
Location: Des Moines, IA
|
10.06.2008, 03:43 PM
Yes, each wire.
Actually, disconnect the motor from the ESC first. Test continuity between each motor wire (phase) to the motor case.
But also check the screw length to make sure they aren't touching the coils. I usually just gently screw in long screws by hand until I feel them touch the coils. Then, back them out a couple turns. This is the max length you should use (don't forget to account for the motor mount thickness).
|
|
|
|
|
|
|
|
RC-Monster Carbon Fiber
Offline
Posts: 132
Join Date: Jan 2008
Location: Quebec Canada
|
10.06.2008, 04:05 PM
I use RCmonster heatsink that add a good spacer between motor and the plate, so no prob there I think.
|
|
|
|
|
|
|
|
RC-Monster Carbon Fiber
Offline
Posts: 52
Join Date: Apr 2008
|
10.06.2008, 06:01 PM
Quote:
Originally Posted by Emaxx_Quebec
I tried to calibrate my MMM ( first one, V2).
When I plugged the batts, (4s2p4000)i saw a very little wite smoke comming out near the del light.
I unplug evrythingright away.
When I tried again, there was no tone at all from the MMM BUT seem to calibrate correctly exept sending signal to the motor. ( it's suppose to vibrate a little, but notting!!! When i pull the trigger, green and yellow del light, full brake, red and yellow light, neutral, yellow only, BUT the motor is not spinning at all !!!
Brand new 9xl motor.
Is there a way to verify if a brushless motor is still good like when we connect + and - to a 9v to a brushed motor to see if he's still spinning?
Thanks
|
i have been there!!
it a dead mmm you got there!!
send it to castle!!
|
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
|
| Thread Tools |
|
|
| Display Modes |
Rate This Thread |
Hybrid Mode
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
Powered by vBulletin® Version 3.8.11 Copyright ©2000 - 2025, vBulletin Solutions Inc.
vBulletin Skin developed by: vBStyles.com
|
 |