RCCrawler Forums

helhedded · 12-24-2008, 08:13 AM

Hey John,

One time when I had a servo failure I was messing around with different servos and my BEC fryed. I was running 2 servos (1 jr8711for steering and 1 h-225for dig) before the frying and they were wired with a y-harness so my BEC powered both servos directly from my lipo (10c 1250 11.1). Everything worked fine until I unplugged one servo from the harness while the system was on, and then my BED went up in smoke.

Do you know what caused this? Was it just my mistake by unplugging a servo with the system on?

thanks,
Ashton

G-crawler · 01-06-2009, 11:45 AM

I heard that the low voltage detection does not work if you use the cc bec, is that true? How do i know if running 3cell lipo when voltage is too low having no low voltage detection?

constantmotion · 01-06-2009, 01:01 PM

Quote:

Originally Posted by G-crawler

I heard that the low voltage detection does not work if you use the cc bec, is that true? How do i know if running 3cell lipo when voltage is too low having no low voltage detection?

I have been running the CC BEC on an Mamba Max with a 3 cell for about a year now.....LVC has been working fine for me.

G-crawler · 01-06-2009, 01:59 PM

Quote:

Originally Posted by constantmotion

I have been running the CC BEC on an Mamba Max with a 3 cell for about a year now.....LVC has been working fine for me.

Ok, i just got a lil bit confused, it said on castles site that it didnt work when bec is wired in, well thanks for the reply man!

helhedded · 01-08-2009, 03:01 PM

Has anyone ever had problems with a Rooster CE and a CC BEC? If so, how was it wired? I had a CC BEC wired up and it quit after 10 seconds. I'm sending it back to CC, but i was wondering if I wasn't the only person witha Rooster that this has happened to.

xgerstandtx · 01-08-2009, 03:15 PM

The Novak CE has 6v BEC. So why would you want to run the external BEC too? My Rooster CE has lots of power in my scaler and on my comp rig i run sidewinder/ext. BEC.

helhedded · 01-08-2009, 03:32 PM

Quote:

Originally Posted by xgerstandtx

The Novak CE has 6v BEC. So why would you want to run the external BEC too? My Rooster CE has lots of power in my scaler and on my comp rig i run sidewinder/ext. BEC.

I didn't know that the rooster BEC was 6v to begin with. This rooster is borrowed until I get a sidewinder for the rig. I suppose that I will just not run an external BEC on her rig and I will just use the BEC when I get a sidewinder for it.

xgerstandtx · 01-08-2009, 04:45 PM

That sounds like a good plan. but that rooster will do just fine for temporary usage. If looking into the sidewinder i would also really do some research on the Tekin FXR. just as a tip.

heeper40 · 01-09-2009, 04:11 AM

Newb question, Do I need an external bec on my setup? I'm running an 7cell AA pack as the main and a 5cell reciever pack to run a 5645+servo winch and reciever on a fx-r esc.

O.C.D. · 01-30-2009, 09:40 AM

Ok, I should know this but I forgot as I programmed my other rig last summer.

My mini is now wired with a Mircro Mamba and BEC. I did the cut the red wire mod for the wiring and the rest is usual wiring. I can program my Micro (need to the update FYI), but I can't seem to get into the BEC to set it at 6.1.

Can anyone tell me real quick how to change the BEC settings with the way I have it wired?

Thanks.

SMFtwstdHICK · 01-30-2009, 10:05 AM

I picked up one of these BEC's and a Tekin FX-R. I am planning on running two servos. The servos are Tower Pro MG995's. One for steering, other for RCW4D's 2 speed tranny. I read that the FX-R's BEC output is 6V? After reading some posts are in this thread, is installing the CC BEC unneccassary now?

JohnRobHolmes · 01-30-2009, 10:12 AM

Doc,

Plug a battery into the BEC, it should allow it to boot up so the computer sees it. If that doesn't work, you will need to get that red wire attached again.

SMF,

I would say the CC BEC is needed with two of those servos. They are amp hogs, and would thermal the FXR pretty fast in a bind.

SMFtwstdHICK · 01-30-2009, 10:17 AM

Cool, thanks for the info man

Oh, will having too much voltage screw anything up? Adding this BEC will give me more voltage correct? I just got the BEC and stuff yesterday. I didn't see any instructions as to how to configure the BEC. I haven't had time to dig into it. I am also running a 7.2 3800 battery with deans.

Thanks again.

JohnRobHolmes · 01-30-2009, 10:26 AM

The BEC will give more current.

Too high of a voltage can fry the servo and RX, 6v is safe for about anything out there. The BEC has instructions inside the packaging.

O.C.D. · 01-30-2009, 10:30 AM

Quote:

Originally Posted by JohnRobHolmes

Doc,

Plug a battery into the BEC, it should allow it to boot up so the computer sees it. If that doesn't work, you will need to get that red wire attached again.

SMF,

I would say the CC BEC is needed with two of those servos. They are amp hogs, and would thermal the FXR pretty fast in a bind.

K, stupid time for Jon here (me). Plug a battery into the BEC?! Like the AUX channel? This is a Losi RX. I have the battery plugged in already through the ESC.

Oh, John, got the lipos last night. Thanks again and thanks for helping me yesterday with a tracking number. It always seems that when you start to annoy the person who shipped it the package shows up, lol.

JOOTZ · 01-30-2009, 10:52 AM

hi john, i got the mamba max esc and CC BEC for a single motor 2 servo set-up on my rockforce. not sure about how to wire it i fired off an email to CC and got this reply

Here you go.

It's just like this, but with another servo (do not look at the channel #'s on this chart...it's for planes). Lift the tab on the servo connector going from the ESC to the receiver...pull the red wire out. This disables the BEC on the speed controller. Plug the ESC into the throttle channel, BEC into the battery channel. Wire the ESC and BEC to a single male Deans plug so when you plug the battery pack in, it powers both the BEC and ESC.
Joe Ford
Product Specialist
Castle Creations

i am using a 7955 for steering and a 5645 for rear dig, question is how do i utilize the BEC for both servos or do i just connect the rear servo directly to the channel 3 on the RX. kinda confusing how to utilize channel 3 on the receiver for BEC. if i do above diagram for the install will that mean channel 1 and 3 are going thru the BEC just take off the red wire from both servo plugs to the receiver or buy another BEC to wire channel 3 as above? TIA

SMFtwstdHICK · 01-30-2009, 11:17 AM

Quote:

Originally Posted by JohnRobHolmes

The BEC will give more current.

Too high of a voltage can fry the servo and RX, 6v is safe for about anything out there. The BEC has instructions inside the packaging.

Thanks , I will look again tonight.

One-eyed Jack · 01-30-2009, 11:44 PM

Quote:

Originally Posted by JOOTZ

hi john, i got the mamba max esc and CC BEC for a single motor 2 servo set-up on my rockforce. not sure about how to wire it i fired off an email to CC and got this reply

Here you go.

It's just like this, but with another servo (do not look at the channel #'s on this chart...it's for planes). Lift the tab on the servo connector going from the ESC to the receiver...pull the red wire out. This disables the BEC on the speed controller. Plug the ESC into the throttle channel, BEC into the battery channel. Wire the ESC and BEC to a single male Deans plug so when you plug the battery pack in, it powers both the BEC and ESC.
Joe Ford
Product Specialist
Castle Creations

i am using a 7955 for steering and a 5645 for rear dig, question is how do i utilize the BEC for both servos or do i just connect the rear servo directly to the channel 3 on the RX. kinda confusing how to utilize channel 3 on the receiver for BEC. if i do above diagram for the install will that mean channel 1 and 3 are going thru the BEC just take off the red wire from both servo plugs to the receiver or buy another BEC to wire channel 3 as above? TIA

If you wire by the diagram above everything will be powered by the external BEC.

SMFtwstdHICK · 01-30-2009, 11:52 PM

And that is a good thing? Yes.? Just bypass the whole BEC in the speed controller? Sorry for all the questions. I don't wanna fry anything.

Espeefan · 01-31-2009, 01:36 AM

Yes, and that's the whole point behind running an external BEC. The only catch is that as soon as you plug a battery pack into the ESC, the BEC will power the RX and servos up, so be sure you have your radio on, and be sure you unplug your battery pack when you are done running. It's a good habbit to get into, anyway, so not a big deal. The BEC has no on/off switch, but one could be added, if you really feel the need. A switch, especially those tiny ones, is just something more that could go wrong.

LinkBacks (?) LinkBack to this Thread: http://www.rccrawler.com/forum/electronics/77466-castle-bec-review-tech-thread.html
Posted By	For	Type	Date
Holmes Hobbies LLC	This thread	Refback	02-15-2013 08:30 AM
Better BEC - Oregon R/C Rock Crawlers	This thread	Refback	10-04-2011 05:47 PM
Holmes Hobbies LLC / Holmes Bikes :: Servos accessory/ Voltage regs :: Castle BEC	This thread	Refback	10-04-2011 04:06 PM

12-24-2008, 08:13 AM	#161
helhedded I wanna be Dave Join Date: Nov 2007 Location: Memphis Posts: 4,786	Hey John, One time when I had a servo failure I was messing around with different servos and my BEC fryed. I was running 2 servos (1 jr8711for steering and 1 h-225for dig) before the frying and they were wired with a y-harness so my BEC powered both servos directly from my lipo (10c 1250 11.1). Everything worked fine until I unplugged one servo from the harness while the system was on, and then my BED went up in smoke. Do you know what caused this? Was it just my mistake by unplugging a servo with the system on? thanks, Ashton

01-06-2009, 11:45 AM	#162
G-crawler RCC Addict Join Date: Feb 2007 Location: sweden Posts: 1,007	I heard that the low voltage detection does not work if you use the cc bec, is that true? How do i know if running 3cell lipo when voltage is too low having no low voltage detection?

01-08-2009, 03:01 PM	#165
helhedded I wanna be Dave Join Date: Nov 2007 Location: Memphis Posts: 4,786	Has anyone ever had problems with a Rooster CE and a CC BEC? If so, how was it wired? I had a CC BEC wired up and it quit after 10 seconds. I'm sending it back to CC, but i was wondering if I wasn't the only person witha Rooster that this has happened to.

01-08-2009, 03:15 PM	#166
xgerstandtx RCC Addict Join Date: Aug 2007 Location: Marshalltown Posts: 1,003	The Novak CE has 6v BEC. So why would you want to run the external BEC too? My Rooster CE has lots of power in my scaler and on my comp rig i run sidewinder/ext. BEC.

01-08-2009, 04:45 PM	#168
xgerstandtx RCC Addict Join Date: Aug 2007 Location: Marshalltown Posts: 1,003	That sounds like a good plan. but that rooster will do just fine for temporary usage. If looking into the sidewinder i would also really do some research on the Tekin FXR. just as a tip.

01-09-2009, 04:11 AM	#169
heeper40 Rock Stacker Join Date: Oct 2005 Location: stockton Posts: 58	Newb question, Do I need an external bec on my setup? I'm running an 7cell AA pack as the main and a 5cell reciever pack to run a 5645+servo winch and reciever on a fx-r esc.

01-30-2009, 09:40 AM	#170
O.C.D. RCC Addict Join Date: Feb 2008 Location: Hiatus..sutiaH Posts: 1,620	Ok, I should know this but I forgot as I programmed my other rig last summer. My mini is now wired with a Mircro Mamba and BEC. I did the cut the red wire mod for the wiring and the rest is usual wiring. I can program my Micro (need to the update FYI), but I can't seem to get into the BEC to set it at 6.1. Can anyone tell me real quick how to change the BEC settings with the way I have it wired? Thanks.

01-30-2009, 10:05 AM	#171
SMFtwstdHICK Rock Crawler Join Date: Feb 2007 Location: Simi Vly Posts: 818	I picked up one of these BEC's and a Tekin FX-R. I am planning on running two servos. The servos are Tower Pro MG995's. One for steering, other for RCW4D's 2 speed tranny. I read that the FX-R's BEC output is 6V? After reading some posts are in this thread, is installing the CC BEC unneccassary now?

01-30-2009, 10:12 AM	#172
JohnRobHolmes owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down! Posts: 20,290	Doc, Plug a battery into the BEC, it should allow it to boot up so the computer sees it. If that doesn't work, you will need to get that red wire attached again. SMF, I would say the CC BEC is needed with two of those servos. They are amp hogs, and would thermal the FXR pretty fast in a bind.

01-30-2009, 10:17 AM	#173
SMFtwstdHICK Rock Crawler Join Date: Feb 2007 Location: Simi Vly Posts: 818	Cool, thanks for the info man Oh, will having too much voltage screw anything up? Adding this BEC will give me more voltage correct? I just got the BEC and stuff yesterday. I didn't see any instructions as to how to configure the BEC. I haven't had time to dig into it. I am also running a 7.2 3800 battery with deans. Thanks again.

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01-30-2009, 10:26 AM	#174
JohnRobHolmes owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down! Posts: 20,290	The BEC will give more current. Too high of a voltage can fry the servo and RX, 6v is safe for about anything out there. The BEC has instructions inside the packaging.

01-30-2009, 10:52 AM	#176
JOOTZ RCC Addict Join Date: Nov 2008 Location: never been Posts: 1,317	hi john, i got the mamba max esc and CC BEC for a single motor 2 servo set-up on my rockforce. not sure about how to wire it i fired off an email to CC and got this reply Here you go. It's just like this, but with another servo (do not look at the channel #'s on this chart...it's for planes). Lift the tab on the servo connector going from the ESC to the receiver...pull the red wire out. This disables the BEC on the speed controller. Plug the ESC into the throttle channel, BEC into the battery channel. Wire the ESC and BEC to a single male Deans plug so when you plug the battery pack in, it powers both the BEC and ESC. Joe Ford Product Specialist Castle Creations i am using a 7955 for steering and a 5645 for rear dig, question is how do i utilize the BEC for both servos or do i just connect the rear servo directly to the channel 3 on the RX. kinda confusing how to utilize channel 3 on the receiver for BEC. if i do above diagram for the install will that mean channel 1 and 3 are going thru the BEC just take off the red wire from both servo plugs to the receiver or buy another BEC to wire channel 3 as above? TIA

01-30-2009, 11:52 PM	#179
SMFtwstdHICK Rock Crawler Join Date: Feb 2007 Location: Simi Vly Posts: 818	And that is a good thing? Yes.? Just bypass the whole BEC in the speed controller? Sorry for all the questions. I don't wanna fry anything.

01-31-2009, 01:36 AM	#180
Espeefan Rock Crawler Join Date: Jun 2006 Location: Wisconsin Posts: 570	Yes, and that's the whole point behind running an external BEC. The only catch is that as soon as you plug a battery pack into the ESC, the BEC will power the RX and servos up, so be sure you have your radio on, and be sure you unplug your battery pack when you are done running. It's a good habbit to get into, anyway, so not a big deal. The BEC has no on/off switch, but one could be added, if you really feel the need. A switch, especially those tiny ones, is just something more that could go wrong.

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