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e-BEAM Beam E4 > How do you guys like your Scorpion ESC's?
 
 
StrangeRanger
Veteran
Location: VT

They're just so big and fat and heavy compared to the Phoenix 45, I'm having trouble getting myself to push the "Buy" button. But, since I just got screwed over buying a used CC 45 I gotta do something. Your thoughts? Thanks,
j
05-19-2008 07:50 PM
 
 
gorn
Elite Veteran
Location: Western Australia

Actually they arent heavy at all. I have the CC HV45 and the Scorpion 45, Id say the Scorp is lighter and definately thinner.
It just looks huge from the side is all.

If you bling it, they will come :D
05-29-2008 04:31 AM
 
 
Beef
Heliman
Location: Wyoming, USA

But that's not really a good comparison when the Scorpion 45 is a 4-cell max controller and the HV-45 is 12 cell max. The Scorpion 45 is only about .5 oz heavier than the standard PHX-45. If your trying to save every gram for a light weight heli, it could make a difference.
05-29-2008 04:37 AM
 
 
gorn
Elite Veteran
Location: Western Australia

fair call, BUT, I can state that the Scorp 45 weighs 42g and the regular Castle 45 weighs 30g. Thats 12g difference, nothing if your using a Scorpion motor with it.
Size? Castle 45, 0.95 x 1.72 x 0.4 in
Scorpion, 2.95 x 1.18 x 0.35 in
Price (important even though not mentioned so far)
Castle $119 , Scorp $60 including programme card.

I dont have a Beam, but I am using the Scorpion 45 and a 2221-8 over 3000rpm HS, and I have to say its excellent. Runs very cool, easy programming, 2 year warranty etc etc.

The ONLY thing I do not like about the Scorpion ESC, is the soft start. Getting it to engage and start the motor is a PITA sometimes. Once the motor is spooling its excellent.

IMHO the Castle ESC's are very good, but not twice the price good and not for 12g weight difference.

Anyway, thats just my opinion, which is kinda what was asked for at the start of this post.

Make your own choices, hopefully you get something to help you either way from my comments.

Cheers

If you bling it, they will come :D
05-29-2008 04:48 AM
 
 
Beef
Heliman
Location: Wyoming, USA

Oops sorry Gorn, I edited my post while you were typing yours. But yeah I agree, 12 grams should make very little difference to most of us.
05-29-2008 04:55 AM
 
 
helirulz
Senior Heliman
Location: Singapore

gorn,
you mentioned that your scorpion45 ran cool with the scorpon 2221-8.
On the other hand im facing overheating problems with my scorpion55 on the same motor.
The ESC gets so hot even on hovering that it burns if i leave my finger on the heatsink for too long. And yes...that's with running a flat 100% throttle curve where its supposed to be most efficient. Are you running a seperate BEC?

I contacted Scorpion Precision Industries about it but they have stopped replying me after some time.

Just curious, when setting up your ESC...did you have to do set up you throttle range?

There was no such step indicated in the manual that i have. All I did was program the settings on the programming card, then fly.

However S.P.I. emailed me a PDF of the manual and I spotted that mysterious section that I never saw in my manual.

Care to take at it? PM me with your email address and I'll send the PDF file to you.
05-29-2008 10:45 AM
 
 
red_z06
Key Veteran
Location: Dumont, NJ

All Scorpion ESCs require throttle range programming prior to ESC setup. You either leave the normal curve from 0 - 100 and start at full throttle until it beeps then you lower to min and wait for it it beep again.

Scorpions ESCs (4s35, 6s90, 6s120) I've tested all run hot. Scorpion is considering heli only version with bigger heatsinks. According to Scorpion, it is not 100% compatible with spectrum receiver's long boot up time and sometimes it wll reset the throttle range (when it starts to beep beep continuosly when it does not receive the signal in time)

For smaller helis it may not be apparent, but the bigger ones I've tested has a too violent initial start enough to semi-fold the blades on startup. The spoolup mode currently will go up to set rpm and kick up fast to the rest if your target rpm is higher than spoolup max rpm. They are working on the firmware change so I'll update when I have a better ESC.

I've replaced Align75amp ESC with CC BEC from Trex600 with Scorpion 6S120 with switching BEC. Without knowing about throttle range reset by ESC, I have lost 200 rpm over Align from 2350 to 2150 which made it a dog. After throttle range programming (almost everytime) it came back up to 2250 but still not 2350. I am switching back to Align75 for now and will test again when an updated version arrives.

I have not yet tested the smaller version.

www.justinchi.com
05-29-2008 01:17 PM
HOMEPAGE  
 
 
gorn
Elite Veteran
Location: Western Australia

I did set the throttle range on mine as Red Z06 has stated.
Mine has always run very very cool actually, and I dont run a seperate BEC.
It gets warmish if I just hover a whole pack ( try not to go to sleep whilst doing that lol ) , but in FFF with flips, rolls and some FBF its very cool.
I must be lucky

If you bling it, they will come :D
05-29-2008 01:21 PM
 
 
helirulz
Senior Heliman
Location: Singapore

GEEZ! Looks like I'm the odd one out here!
All this while I've been flying mine uncalibrated

Im new to this calibration stuff for this ESC...so just to check....i have to connect the battery while in 100% throttle and lower it to 0% after hearing a tone from the ESC.
Do I have to do this before every flight? Or do I only recalibrate if I've adjusted my throttle settings?
05-29-2008 02:28 PM
 
 
gorn
Elite Veteran
Location: Western Australia

Yep, only have to do it once

If you bling it, they will come :D
05-29-2008 04:02 PM
 
 
red_z06
Key Veteran
Location: Dumont, NJ

If you use DX7, sometimes the longer bootup will trigger a fault in the ESC and reset the throttle programing. So, you may have to do it everytime you hear ESC fault (continuours beep beep) For all other receivers, only one time.

When setting, there are two ways to do it.

You can use 0 to 100 on the normal throttle curve and start at full stick and then low stick after beep beep. This requires normal curve change before and after the setting.

The other way is to use dle up (100%). You set the flight mode to idle up and turn on the receiver with throttle stick at low. After the beep beep, you change the mode to normal. This way you do not have to mess with normal curve.

www.justinchi.com
05-29-2008 04:09 PM
HOMEPAGE  
 
 
Jetleaf
Heliman
Location: Concord, N.C. - U.S.A.

Quote 
How do you guys like your Scorpion ESC's?

They're just so big and fat and heavy compared to the Phoenix 45, I'm having trouble getting myself to push the "Buy" button. But, since I just got screwed over buying a used CC 45 I gotta do something. Your thoughts? Thanks,
j

If you are concerned about the size and weight why not run the 35 amp commander. I've been running it with a -8 and love it. Sure it gets warm but not hot. I've seen 125 degrees a couple of times but that was the highest. The motor about the same. I'm running a 14t pinion and getting 4 1/2 minutes of hover and slow ff and putting back 1400 mah in a Kong 2200 pack. This heli is lighter than most people think. 35 amps is more than enough for the -8. Also consider esc's are rated at peak amps. You are not going to see peak amps often enough in a flight to justify the 45 amp esc and if you do something is wrong. At least that's what mama say.
05-30-2008 09:58 AM
 
 
subarus
Heliman
Location: South East Asia

red_z06 wrote "All Scorpion ESCs require throttle range programming prior to ESC setup. You either leave the normal curve from 0 - 100 and start at full throttle until it beeps then you lower to min and wait for it it beep again."

thanks red.. where can I find more info about scorpion programming using throttle? cant find it in the manual.

side topic on scorpion motor, I like scorpion because 2221 can handle continous 475W. Is there higher wattage motor for 450size?

I suspect heat problem can be solved if I use 2221-12 with 16T pinion. Therefore headspeed is 2580 X 11.1 X 16 X 0.9/150= 2750rpm
i have not tried it yet, what dya guys think?
05-30-2008 10:55 AM
 
 
red_z06
Key Veteran
Location: Dumont, NJ

subarus

It is very easy to miss but the manuals say it in there. Method is not written well though. For repeated use, I would recommand using the Idle-up, stick down to normal method as you don't have to change the upper half of the normal curve for helis.

For airplanes, since normal curve will be 0 to 100, you can use that.

www.justinchi.com
05-30-2008 11:55 AM
HOMEPAGE  
 
 
gorn
Elite Veteran
Location: Western Australia

Subarus
Just use the 2221-8 on 11 tooth if your concerned

If you bling it, they will come :D
05-30-2008 03:27 PM
 
 
Torquestar
Heliman
Location: California

Quote 
For smaller helis it may not be apparent, but the bigger ones I've tested has a too violent initial start enough to semi-fold the blades on startup. The spoolup mode currently will go up to set rpm and kick up fast to the rest if your target rpm is higher than spoolup max rpm. They are working on the firmware change so I'll update when I have a better ESC.

I just found this out as well.... Just bought a 1400kv motor w/ 15 tooth pinion and a Scorpion 6s 90amp ESC. There basically is NO soft-start.

Just for the heck of it, I set my throttle curve from 0-20 total. The throttle does nothing except when it finally reaches near the top, it hard starts and spins the heli around. It also yanks the blades 90 degrees in the blade grips until it spools up (about 3 seconds or so). Setting Soft Start mode to "1" does nothing it seems. Setting the throttle delay to a higher number also does nothing.

It's no better/worse than a normal 0-100 throttle curve.

I also contacted Lucien and he's visiting the Scorpion factory this coming week, so hopefully he'll have some good news... but these ESC's are incompatible with the Trex 500 at least because of the massive shock it gives to the plastic main gear when it starts up.
06-01-2008 09:23 PM
 
 
jamesppp
Senior Heliman
Location: carrollton georgia usa

Is the "manual" for the speed controller the 2 pages titled:

Scorpion ESC Programming Card Instructions

if so, is the "soft start" function the Motor Acceleration Time parameter controlled by switches 13 and 14?

How do I know which PWM and Timing Advance works best with my Scorpion 2221-8 ?

Thanks,

Jimmy
06-15-2008 05:57 PM
 
 
jamesppp
Senior Heliman
Location: carrollton georgia usa

There was no paperwork in the can with my Scorpion 55ESC and none with the -8 motor.

Im wondering if the Programming guide referenced in the post above is all that is available.

Im particularly interested in soft start programming as some say the ESC doesnt soft start well.

Anyone know, I read where someone had a pdf file with instructions.
Any help and advice appreciated

Thanks
06-16-2008 02:10 PM
 
 
helirulz
Senior Heliman
Location: Singapore

PM me with your email and I'll forward a copy of the PDF to you
06-16-2008 02:23 PM
 
 
jamesppp
Senior Heliman
Location: carrollton georgia usa

Helirulz. I PM'd you

po_po1ATmsn.com of course replace the AT with @

Thanks
06-16-2008 10:38 PM
 
 
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e-BEAM Beam E4 > How do you guys like your Scorpion ESC's?
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