Needing help replacing my ESC
I've got a Starmax MX2 55" and I'm needing to replace the ESC and need some help getting the right replacement. A Internet search shows it having either a 45A or 70A ESC with a 5A UBEC. I find different info on the same plane. I figure to be safe I should go with the 70A? I'm looking at 2 different ones at HK. Which looks to be the best choice and what should I be aware/warned of? Other options?
TURNIGY TRUST 70A SBEC Brushless Speed Controller
Turnigy® TRUST SBEC ESCs have a very flexible and broadly capable MCU, able to run all types of brushless motors.
The large heatsink and simple PCB layout make heat dissapation consistant, enabling the ESC to be run at its limit, without failure.
The ESC is program-card and transmitter programmable with clear and easy to understand instructions included.
Default factory settings are;
Battery: LiPo Auto Detect
Low Voltage: 3.2v (power down motor)
Max Motor Current: 70A
Max BEC Current: 3A
BEC Voltage: 5.5v (Switching)
LV Setting (Ignore, Reduce Power, Stop Motor)
Timing (Auto, Med, High)
Or HobbyKing 70A ESC 4A UBEC
Constant Current: 70A
Burst Current: 100A
Battery: 2-6S Lipoly / 5-18s NiXX
BEC: 5.5v / 4A
Motor Type: Sensorless Brushless
Size: 70 x 32 x 17mm
Battery Type: Lipo /NiXX
Brake: On / Off
Voltage Protection: Low / Mid / High
Protection mode: Reduce power / Cut off power
Timing: Low / Medium / High
Startup: Fast / Normal / Soft
PWM Frequency: 8k / 16k
Helicopter mode: Off / 5sec / 15sec (Start up delay)
[QUOTE=DCDetector;894822]I've got a Starmax MX2 55" and I'm needing to replace the ESC and need some help getting the right replacement. A Internet search shows it having either a 45A or 70A ESC with a 5A UBEC. I find different info on the same plane. I figure to be safe I should go with the 70A? I'm looking at 2 different ones at HK. Which looks to be the best choice and what should I be aware/warned of? Other options?
Castle Creations has a wide variety of ESC's with switching power supply type of BEC's. These units are several times more expensive though. I've got 10 of them, and all of them have been flawless in operation over the past five years. For what it's worth, these ICE series of ESC's also has data recording that records RPM, Watts, Amps, Volts, ESC Temperature, and a few other things. You download the info to your PC with the Castle Creations USB dongle. The CC software shows the information in a graph type of display. Or it can be downloaded to an excel spreadsheet.
How many forums you post this on?
What's the difference to how many forums he posts on he will get more answers to his question to a specific plane that someone else will have.;):)
Those ESC on the starmax are not the best I replaced the one on my Starmax A1 skyraider after hearing others had problems with them. I went with a 60 amp from hobbypartz, and a separate UBEC to power all the servos.
DC did you ever check the watt's and amp's with the original setup?
That is a problem with starmax some of the planes seems they throw in whatever sizze esc they have on the assembly bench. Mine was a topfire 70 amp first run up it got hot and it was only putting out around 55 amps on the watt meter I tossed it.
Note to self: When connecting a battery to the ESC red does not connect to the red wire.
Ya that is reversed for sure I can't say I am not guilty of doing something similar myself. :oops:
Well you won't make that mistake again at least that's what I tell myself.:rolleyes:
New ESC and you will be on your way, and it looks like Dr.Kiwi gave you advice he knows power setups he does a lot of power testing.
Every esc I've ever used were red to red? That's just weird
Not what I expected for sure. The above photo is of untouched connections from a LiPo(left) to the ESC(right) as they were on the original plane.
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