RunRyder RC
 6  Topic Subscribe
WATCH
 1 page 1799 views
HelicopterRadio - Spektrum DSM › Rx light is blinking
08-03-2011 10:35 AM  6 years agoPost 1
iskoos

rrKey Veteran

Orlando, FL

My Posts: All  Forum  Topic

Hi there,

I am not using JR/DSM system but building an airplane for a friend who has Dx6i and DSM AR6200 Rx. I did the binding and everything is working fine with the orange LED is solid on. However, sometimes when I am running the system, the orange LED lights (both on the main and aux Rx) start blinking. When this happens, the blinking doesn't stop till I cycle the power. I did the binding twice and it is still doing this sometimes. When the LED is blinking, there is no issue with the controls. However, I am wondering what this is. Why is the LED blinking sometimes?

PM  EMAIL  GALLERY  Attn:RR  Quote
08-03-2011 10:44 AM  6 years agoPost 2
wrongler

rrProfessor

Brewerton, New York

My Posts: All  Forum  Topic

I have had that problem with one of my helis and I know other people have had the same problem, it has never been an issue with flying or not having control. I dont have to rebind, Just turn off everything and turn it all back on and the light is steady.

Bill Whittaker

PM  EMAIL  GALLERY  Attn:RR  Quote
08-03-2011 12:15 PM  6 years agoPost 3
f3j pilot

rrNovice

Augsburg

My Posts: All  Forum  Topic

If you turn the RX off and back on without switching the TX off you will get the flashing LEDs. If you switch the RX off then also switch the TX off to avoid the flashing LEDs

PM  EMAIL  Attn:RR  Quote
08-03-2011 12:41 PM  6 years agoPost 4
FloridaHeli

rrVeteran

jacksonville, florida

My Posts: All  Forum  Topic

Low Rx voltage will also cause the blinking.

This hobby is WAY too expensive!!

PM  EMAIL  GALLERY  Attn:RR  Quote
08-03-2011 01:01 PM  6 years agoPost 5
BarracudaHockey

rrMaster

Jacksonville FL

My Posts: All  Forum  Topic

Yup, you either cycled the power on the reciever, OR you have a loose connection in you power system somewhere thats causing it to loose power and do a quick connect.

Andy
AMA 77227
http://www.jaxrc.com

PM  EMAIL  GALLERY  Attn:RR  Quote
08-03-2011 02:12 PM  6 years agoPost 6
iskoos

rrKey Veteran

Orlando, FL

My Posts: All  Forum  Topic

Well thanks for the replies. It cannot be a low voltage. The Rx has a regulated 6 volts coming thru a UBEC which is connected to a 3s lipo.
Could it be a loose connection? I still don't think so but I will check it again. I may have not pushed the connectors all the way in since I am in the building stage. I will check that...

PM  EMAIL  GALLERY  Attn:RR  Quote
08-03-2011 02:41 PM  6 years agoPost 7
BarracudaHockey

rrMaster

Jacksonville FL

My Posts: All  Forum  Topic

Blinking lights mean loss of power.

One thing to check is maybe the cable between the main and remote recievers, I've seen that act up and cause the satalite to flash sometimes.

Andy
AMA 77227
http://www.jaxrc.com

PM  EMAIL  GALLERY  Attn:RR  Quote
08-07-2011 08:57 PM  6 years agoPost 8
dkshema

rrMaster

Cedar Rapids, IA

My Posts: All  Forum  Topic

Spektrum Quick Connect/Low Voltage stuff:

QuickConnect Voltage Recovery System for DSM2 Air receivers

Performance modelers have known for some time that care must be taken to assure adequate power supplies for their airborne system. It’s true for all radio systems, but it’s doubly important when using high-performance servos, flying harder maneuvers, and trying to save weight with inadequate batteries and/or regulators.

Spektrum systems are designed with an operating threshold of 3.5 volts, and lower voltages cause the system to shut down. When adequate power is regained (usually the drop is momentary), earlier Spektrum systems re-boot and rescan for two previous channels before control is restored – a process usually requiring two to five seconds.

The new QuickConnect feature, however, eliminates the scanning delay and restores control almost instantly. We have been integrating this upgrade into receivers in a running change. Here’s how to identify if your receiver has QuickConnect:

With the system operating normally, simply switch the airborne power off, then on. If your system shows virtually no delay in regaining control, your receiver includes the QuickConnect feature.

Flashing LEDs indicate low voltage alert

QuickConnect allows most flyers to fly through common low-voltage situations caused by insufficient battery "headroom" – in many cases, without knowing a problem ever occurred. As a result, Spektrum engineers decided to program the system so that the receiver LEDs would flash, should the QuickConnect feature be triggered in flight. This can also be demonstrated on the bench, by toggling the airborne power.

If your receiver is missing one or both of these features, first off, it's important to recognize that the vast majority of flyers using "normal" servos with "normal" properly charged batteries will be unaffected by low-voltage issues. The best fix, however, remains assuring adequate power supply to the airborne system with sufficient voltage headroom.

Your flying success is of paramount importance to Spektrum as the leaders in spread spectrum technology, we're constantly moving the bar upward. Also, whenever you have questions regarding your Spektrum equipment, please feel free to contact our Product Support Team at 877 504-0233.
-----

Having a "regulated 6V from an external UBEC" is NOT a guarantee that your voltage at the receiver will be solid. If you have small gauge wires and power-hungry servos, you could still have momentary voltage drops at the RX due to servo current draw. Wire losses in your harness could be a problem. Also, how well does that UBEC regulate? Can it adequately respond to sudden demands of current and maintain an output greater than 3.5 VDC? Maybe its dynamic response is not what it should be.

If you leave the TX on while cycling RX power, you WILL get blinky lights every time.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

PM  EMAIL  GALLERY  Attn:RR  Quote
08-07-2011 10:27 PM  6 years agoPost 9
iskoos

rrKey Veteran

Orlando, FL

My Posts: All  Forum  Topic

Thank you guys. I am conviced that this was a power issue. The airplane I am building is a big size (87" wingspan - 55cc engine). It has 6 hungry servos (Savox 1256TG). I was not happy with the poor powering system right from the beginning. After talking to my friend, I easily convinced him to upgrade. We are changing the entire powering system. We just got an Evolution Powerbox. It has 2 identical 2s lipo packs to power the system. So no more UBEC with a single Rx pack and more importantly I will not be running all this power thru a little tiny Rx. It will be distributed thru the powerbox. I feel much better right now.
Blinking LED caused by cycling the Rx without cycling the Tx is definitely new to me. Futaba doesn't have this so having all my equipment Futaba, I couldn't know this w/o you. Thanks again...

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 1 page 1799 views
HelicopterRadio - Spektrum DSM › Rx light is blinking
 Print TOPIC  Make Suggestion 

 6  Topic Subscribe

Tuesday, January 16 - 11:50 am - Copyright © 2000-2017 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online