Problem with XPS receiver v3.2

[Adrianli]

Anyone facing the same problem as me??? Have written the below to XPS and awaiting an answer.


----- Original Message -----
From: Adrian Lee
To: tech@xtremepowersystems.net
Sent: Monday, December 22, 2008 8:18 PM
Subject: Problem with receiver v3.2


Hi Support Staff,

I have received the upgrade receivers already but it does not work properly as before!!!

1) Previously, XPS work with my Castle Creation Phoenix 85HV flawlessly using the "Set RPM" mode. But now it wouldnt work at all and the motor would be hunting, rpm fluntuating up and down. After setting the ESC back to fix throttle, then it will work. Please advise what had happened!!!!

2) Previously, my UBEC works w/o any glitch at all. But now the upgraded receiver signal light turn to orange after a while of moving the servos only, indicating low voltage. That is puzzling as previously it works without any problem. But using the Align linear BEC with a dedicated 2S lipo pack, the signal light maintains at green constantly. Please advise what had happened!!!

Please revert back to me soonest.

Regards,

Adrian Lee

[Adrianli]

Reply from XPS :

1) Previously, XPS work with my Castle Creation Phoenix 85HV flawlessly using the "Set RPM" mode. But now it wouldnt work at all and the motor would be hunting, rpm fluntuating up and down. After setting the ESC back to fix throttle, then it will work. Please advise what had happened!!!!

We will look into this. We have had no one report this problem.


> 2) Previously, my UBEC works w/o any glitch at all. But now the upgraded receiver signal light turn to orange after a while of moving the servos only, indicating low voltage. That is puzzling as previously it works without any problem. But using the Align linear BEC with a dedicated 2S lipo pack, the signal light maintains at green constantly. Please advise what had happened!!!

You have a low voltage condition happening, and it has always been that way. You just never knew before as there was no warning.

[xeqouz]

Hi Adrianli,

have u solved the UBEC issue?

Regards

[Adrianli]

Yes, resolved already. The XPS receiver need a voltage of 5.5V and above in flight to maintain the yellow light. I did a trial and error using CC Bec and adjusted the voltage increment of 0.1V from 4.8V upwards.

I am running four digital servos on my helis.


At 4.8V, under load, the XPS receiver light will change from yellow to orange.

[xeqouz]

Cool! Congrats! I understand your feeling then.

I'd finally send out mine for firmware upgrade. I'd been encountering occasional lockouts at certain field, hope the freq hopping will work for me.