Double BL problems.

Supaplums · 06-14-2012, 10:30 PM

Sorry for asking cause I know it's in here somewhere but I'm having trouble finding it. Two problems. Firstly, I set up my xp3a tail temporarily and it ran fine. Now, after I wired my xp12a main and spin 16k motor, the tail doesn't do anything. Perhaps it's linked to my second problem. My main motor arms like the other xp12a I have, but when it starts to spool, it lasts for about two seconds and stops. It's like this in normal and IU mode. If you leave it in IU or any thing over zero throttle in normal mode it will pulse these 2 second spool ups. I'm pretty sure I've read about this but I cant find it and I need help.

Supaplums · 06-15-2012, 05:14 PM

Anybody have any ideas? Got to get this bad boy in the air :-)

Supaplums · 06-15-2012, 05:15 PM

Also, for the tail signal wire does it matter which side of the resistor you're on?

NCcraig · 06-15-2012, 05:44 PM

Quote:

Originally Posted by Supaplums

Also, for the tail signal wire does it matter which side of the resistor you're on?

Well yea.

Spunjah413 · 06-15-2012, 06:25 PM

Quote:

Originally Posted by Supaplums

Also, for the tail signal wire does it matter which side of the resistor you're on?

Make sure the side your on has the trace that leads twords the MCU.

Dylwad · 06-15-2012, 07:18 PM

And try turning the startup acceleration up on the main ESC. Seems that some motor/ESC/battery combo's have trouble starting, sometimes. I get 100% reliable starts with Hyperion 550's, but have a fault every so often with Gens Ace 500's, no idea why...

Dylan

everydayflyer · 06-15-2012, 07:55 PM

There is a rather detailed explanation of this (hard sasrting) on RC Groups in the Scorpion Thread. Miller's explanation was that since the Scorpion motors have such high strength magnets they require a faster ramp up of the intial starting current and that Scorpion ESC provide such automaticly.

I have many Scorpion motors, on on my Blade 400 ( hanger queen) and in numerious fixed wing planes from 400 watts to just over 1,000. I use to use CC ESC and they had an extremly difficult time starting the Scorpions no matter what ver. of firmware or what seting I used. I finally go the ones in the Blade to play well together but gave up and went to Suppo ESCs in all of my planes and they work well as long as I bump the throttle from off to aprox. 15%. If I ease the throttle the motor stutters and try to start backwars. Once I had the hard brake set and after a stll turn with power off the motor started backward a quick blip to off and then a puch and it started correctly. I landed and disabled the barke, once was exciting enough as that was in my 3D HS Extra 300 which happends to be my favorite plank.

Supaplums · 06-15-2012, 08:31 PM

I'm really worried that I'm getting no reaction at all out of the tail. Should I hear two distinct beeps when I power up from both ESCs? What kind of multimeter reading should you get at the signal thru different throttle ranges?

Spunjah413 · 06-15-2012, 09:22 PM

Yes you will hear 2 distinctive beep sounds from each motor in unison when powering up.

Supaplums · 06-15-2012, 10:30 PM

Ok, some good news. Cleaned the trace for the tail and got it running! Still having the spool pulses for the main though. Tried increasing the startup acceleration from .4 to 1.0 as Dylan suggested to no avail. In idle up, I did get it to spool up twice. This
Happened only after leaving it in IU for at least a minute with about 10 of these pulses before it. Any other ideas? I'm going to search the threads again. Thanks for the help thus far!!

Skyjacker07 · 06-15-2012, 11:11 PM

Every pulse and shut down for me were with the stock batteries, and another reason was to much I guess the word I'm looking for is to much amperage mine still did it with a brushless main and a brushed tail, then I went double brushless and all is good.

06-14-2012, 10:30 PM	#1
Supaplums Registered Users Join Date: Jul 2011 Location: Devon PA	Double BL problems. Sorry for asking cause I know it's in here somewhere but I'm having trouble finding it. Two problems. Firstly, I set up my xp3a tail temporarily and it ran fine. Now, after I wired my xp12a main and spin 16k motor, the tail doesn't do anything. Perhaps it's linked to my second problem. My main motor arms like the other xp12a I have, but when it starts to spool, it lasts for about two seconds and stops. It's like this in normal and IU mode. If you leave it in IU or any thing over zero throttle in normal mode it will pulse these 2 second spool ups. I'm pretty sure I've read about this but I cant find it and I need help. __________________ Just remember that everything will be OK in the end. And if it's not OK, then it's not the end. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. Mcpx Heli-max Upgrades Dx6i T-Rex 450 sport BeastX FBL Dx6i

06-15-2012, 05:14 PM	#2
Supaplums Registered Users Thread Starter Join Date: Jul 2011 Location: Devon PA	Anybody have any ideas? Got to get this bad boy in the air :-) __________________ Just remember that everything will be OK in the end. And if it's not OK, then it's not the end. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. Mcpx Heli-max Upgrades Dx6i T-Rex 450 sport BeastX FBL Dx6i

06-15-2012, 05:15 PM	#3
Supaplums Registered Users Thread Starter Join Date: Jul 2011 Location: Devon PA	Also, for the tail signal wire does it matter which side of the resistor you're on? __________________ Just remember that everything will be OK in the end. And if it's not OK, then it's not the end. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. Mcpx Heli-max Upgrades Dx6i T-Rex 450 sport BeastX FBL Dx6i

06-15-2012, 08:31 PM	#8
Supaplums Registered Users Thread Starter Join Date: Jul 2011 Location: Devon PA	I'm really worried that I'm getting no reaction at all out of the tail. Should I hear two distinct beeps when I power up from both ESCs? What kind of multimeter reading should you get at the signal thru different throttle ranges? __________________ Just remember that everything will be OK in the end. And if it's not OK, then it's not the end. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. Mcpx Heli-max Upgrades Dx6i T-Rex 450 sport BeastX FBL Dx6i

06-15-2012, 09:22 PM	#9
Spunjah413 Registered Users Join Date: Jul 2011 Location: USA	Yes you will hear 2 distinctive beep sounds from each motor in unison when powering up. __________________ Tarot 450 Pro V2 DFC 6S - Scorpion 2010 - YEP 45A - Hitec 5065 - Hitec 5084 - Robird G31 Trex 500E DFC - Castle Vertigo 1800 - Castle ICE75 - DS510M - DS520 - AR7200BX MSH PRÔTOS - Scorpion 880 - YGE 60A - Futaba 9650 - Futaba 9254 - AR7200BX

06-15-2012, 07:18 PM	#6
Dylwad Registered Users Join Date: Mar 2007 Location: Phoenix AZ	And try turning the startup acceleration up on the main ESC. Seems that some motor/ESC/battery combo's have trouble starting, sometimes. I get 100% reliable starts with Hyperion 550's, but have a fault every so often with Gens Ace 500's, no idea why... Dylan

06-15-2012, 07:55 PM	#7
everydayflyer Registered Users Join Date: May 2009 Location: Haralson County GA USA	There is a rather detailed explanation of this (hard sasrting) on RC Groups in the Scorpion Thread. Miller's explanation was that since the Scorpion motors have such high strength magnets they require a faster ramp up of the intial starting current and that Scorpion ESC provide such automaticly. I have many Scorpion motors, on on my Blade 400 ( hanger queen) and in numerious fixed wing planes from 400 watts to just over 1,000. I use to use CC ESC and they had an extremly difficult time starting the Scorpions no matter what ver. of firmware or what seting I used. I finally go the ones in the Blade to play well together but gave up and went to Suppo ESCs in all of my planes and they work well as long as I bump the throttle from off to aprox. 15%. If I ease the throttle the motor stutters and try to start backwars. Once I had the hard brake set and after a stll turn with power off the motor started backward a quick blip to off and then a puch and it started correctly. I landed and disabled the barke, once was exciting enough as that was in my 3D HS Extra 300 which happends to be my favorite plank.

06-15-2012, 10:30 PM	#10
Supaplums Registered Users Thread Starter Join Date: Jul 2011 Location: Devon PA	Ok, some good news. Cleaned the trace for the tail and got it running! Still having the spool pulses for the main though. Tried increasing the startup acceleration from .4 to 1.0 as Dylan suggested to no avail. In idle up, I did get it to spool up twice. This Happened only after leaving it in IU for at least a minute with about 10 of these pulses before it. Any other ideas? I'm going to search the threads again. Thanks for the help thus far!! __________________ Just remember that everything will be OK in the end. And if it's not OK, then it's not the end. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. Mcpx Heli-max Upgrades Dx6i T-Rex 450 sport BeastX FBL Dx6i

06-15-2012, 11:11 PM	#11
Skyjacker07 Registered Users Join Date: Dec 2010 Location: Oklahoma	Every pulse and shut down for me were with the stock batteries, and another reason was to much I guess the word I'm looking for is to much amperage mine still did it with a brushless main and a brushed tail, then I went double brushless and all is good.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode