4 Turnigy ESC goes halfspeed.....

[numse1964]

Hi

I'm new with the boat bug.
I have a serious ( for me :-) problem. In my first boat I have build from scrath, I'm using 2 60A ESC from Turnigy with 2 Leopard 28/58 - 2880KV motors and 2 3S 5000mah C20-30 batteries. Radio is a Hitec Agressor CRX 40mhz.

My problem is that after I programmed the ESC - seems to work well - I got to the lake and then....only 50% rpm's.
- I have programmed them 1 and 1 and then i used a Y cable.

When I gor home I checked the motors KV with my RPM/KV reader. It was only 50% rpm's on both of them.

Then I programmed the Throttle Range setting on the transmitter.
- Moved the trotteltrigger to the maximum position and then connected the battery pack to the ESC. After 2 sec, 2 beeps can be heard. Then I release the trotteltrigger to the neutral position and hear beep......beep,beep,beep.
According to the instructions for the ESC there should only be one beep after the trotteltrigger is released to neutral.
I wonder if the first beep I here is the one mentioned in the instructions and the 3 beep's after is the lipo count ?

Then I tested both ESC's with 2 diffrent motors. Same results, 50% rpm's on the motors.

I then programmed the ESC's again, 1 by 1 with the same results only 50% rpm's.
- first I used a programming card then the transmitter.

I tested basiclly all settings regarding Running mode, Lipo Cells, Low Voltage Cutoff and Timing.
Still only 50% rpm's...

I then orderd 2 new 120A Turnigy ESC's .....I was out of idears, and why not for the future..:-)
Got them. Programmed the Throttle Range settings on the transmitter then the ESC's 1 by 1.
Same problem only 50% rpm's !!!
- then I was about to cry...

Called in a friend that did i all over again with the same results. Only 50% rpm's from both of them.
- first we used a programming card version 2 then the transmitter.

Then we used a seprat battery for the reciver, just in case, then an extra capacitator in the 3 ch, then 3 diffrent 3S batteries ( C rate 30-50)
Still only 50% rpm's.

Then I tested with a new 2,4 ghz handgun-style radio....Still only 50% rpm's from all 4 of them !!!
- then I cryed...

Questions:
Anybody had the same kind of problem with a ESC ? Turnigy ?
There is a Reset button on the programcard I have used a lot of times. Is there another way to reset it as much as possible ?

Programming the Throttle Range setting on the transmitter.
- Moved the trotteltrigger to the maximum position and then connected the battery pack to the ESC. After 2 sec, 2 beeps can be heard. Then I release the trotteltrigger to the neutral position and hear beep......beep,beep,beep.
According to the instructions for the ESC there should only be one beep after the trotteltrigger is released to neutral.
I wonder if the first beep I here is the one mentioned in the instructions and the 3 beep's after is the lipo count ?


I have a Genesis cat with a Turnigy 180A ESC without any problems using the same radio and programcard version 2.


Best regards Henrik

[properchopper]

Henrik,

Program the Low Voltage Cutoff Threshold (item 3) to (1) : "No Protection" and watch your runtimes carefully to not overdraw your batteries. This works for all of the T-180's.

[dana]

Turn the throttle trim on your radio all the way up, then try it

[numse1964]

Thank you. I will try it to night.
Best regards Henrik

[numse1964]

Thank you.
I will try it to night.
Best regards Henrik

[Boaterguy]

Have you checked the programming/ throttle curve on your TX? maybe it's the programming that's limiting to 50%, also check your DR or EXPO.

[numse1964]

Hi

I have had some vacation and a lot of work. But now I will try again to solve my ESC issues.
Bought 2 Swordfish 120A ESC.
Same problem......still only 50% of the rpm's.
I will now find a rc doctor in a club who can help me...

Never mind. I realy like this, so I'm thinking of a HPR C5009 for this fall-winter. Love the building and running :-)

Best regards Henrik

[00-Danno]

Hi Henrik,

Did you solve the problem?

[numse1964]

No. I haven't got any idears left for the moment.
It realy puzzels me. It's 3 diffrent ESC's Turnigy 60A and 120A + Swordfish 120A that behaves the same way. I tryed the most things regarding the radio but it could be something with the radio.
I don't use exp, ABS or anything except default settings with the pistolgrip Hitec Agressor CRX 40mhz.

The radio works perfect with my 180A Turnigy....Why ???
I even tryed diffrent 4S batteries 4000 mah 40C to be sure there was enough punch from the beginning. Still only 50 % kvm.

I resently tryed a cheap HK 2,4 ghz pistolgrip radio. Same problem...
I may be doomed on this problem...;O(

I hope somebody here with more experience then me, may find a solution :O)

Best regards Henrik

[hyrulejedi86]

Since you mention this I have been facing the same issue on my seaking 60A in my Rio Ep cutting to 50% almost immediatly starting to run full throttle. Hopefully something can be identified besides lipo cut off because I'm going to try that next myself.

[Boaterguy]

it could be the motor, don't see why but..
try the same setup but swap out the motor.

[numse1964]

Hi

I tryed with 4 diffrent motors 28/58 2 pole, 28/45 2 pole, 28/58 6 pole and 40/74 4 pole because as you say, why not...
Still the same.
Thank you that you mensioned the motors. I will do some sort of excel diagram to sort out what I did and didn't, when I get the time.
Tryed the lipo cutoff on 2,8 3,0 3,2 3,4 and off.
Still the same.

Best regards Henrik

[jkr]

Hello.
REVERSE THE CHANNEL2

[00-Danno]

Hi Henrik,

I am having the same problem with my Turnigy 120. I installed it in my DF29, went 1 lap at full throttle then it died. Let off the trigger, went back to full throttle and only get 1/2 speed now. I'm using a 2.4 Tactic radio. I have the program card as well. Haven't had a chance to set the LVC to off. I will re-program and try this weekend with a different motor as well.

[numse1964]

Hi Danno

I realy hope you don't have the same problem. If you solve it, I will be bery intressted in how :O)
- I will try reversing the second channel again as jkr wrote abow in the weekend and get back with the result.

Best regards Henrik