Align Trex 600 helicopter - softstart
03-13-2012 | 07:42 AM
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From: Sheung Shui, HONG KONG
Align Trex 600 helicopter - softstart
Hello.
I just finished my build two days ago, and yesterday I did my maiden flight.
The heli flew perfectly, and I love it!!!
One issue i had though, it seemed that the softstart on the ESC is not working 100%
Whenever I want to spool up, the motor starts turning very slowly, but does not increase in RPM, it also seems that it "stutters" as it turns, after a few seconds, it gives up and dies. Then i need to throttle back down, then up again, and it will try again.
After 4-6 attempts like this, it manages to increase RPM, and after this i have no problem with power.
After 5 mins of hover, the ESC, batt and connectors are cool, the motor is warm (not hot)
The ESC is setup to defaults, (brakes disabled, medium timing, hight voltage cutoff, soft start (no governor), and quick throttle response)
(i had a linear throttlecurve in the Tx when programming the ESC, and the ESC gives the correct beeps, so the programming should be as i anticipate)
When flying i use a throttlecurve of 0,40,65,87,100
The mesh between the motor and the main gear might be a little tight, but if i spin the gear a full turn, i have some play at some points of the gear, and no play in others.
Anyone have any ideas regarding this?
[link=http://www.rcecho.com/RCS-Model-Bearing-Set-for-Align-RC-TREX-600-BG468.html]
[/link]
I just finished my build two days ago, and yesterday I did my maiden flight.
The heli flew perfectly, and I love it!!!
One issue i had though, it seemed that the softstart on the ESC is not working 100%
Whenever I want to spool up, the motor starts turning very slowly, but does not increase in RPM, it also seems that it "stutters" as it turns, after a few seconds, it gives up and dies. Then i need to throttle back down, then up again, and it will try again.
After 4-6 attempts like this, it manages to increase RPM, and after this i have no problem with power.
After 5 mins of hover, the ESC, batt and connectors are cool, the motor is warm (not hot)
The ESC is setup to defaults, (brakes disabled, medium timing, hight voltage cutoff, soft start (no governor), and quick throttle response)
(i had a linear throttlecurve in the Tx when programming the ESC, and the ESC gives the correct beeps, so the programming should be as i anticipate)
When flying i use a throttlecurve of 0,40,65,87,100
The mesh between the motor and the main gear might be a little tight, but if i spin the gear a full turn, i have some play at some points of the gear, and no play in others.
Anyone have any ideas regarding this?
[link=http://www.rcecho.com/RCS-Model-Bearing-Set-for-Align-RC-TREX-600-BG468.html]
[/link]
03-13-2012 | 07:51 AM
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From: Johns Creek,
GA
RE: Align Trex 600 helicopter - softstart
if the motor is stuttering when you bring the throttle up, it sounds like a timing issue....
double check all solder connections...
if your ESC is programmable, change the timing.. at this point it really doesn't matter to what...just to something different...
lots of ESC's default to "low"... if so change it to "high"
double check all solder connections...
if your ESC is programmable, change the timing.. at this point it really doesn't matter to what...just to something different...
lots of ESC's default to "low"... if so change it to "high"
