Welcome Guest Search | Active Topics | Log In | Register

3 Pages 123>
RSD2 failing to starting up properly Options
PeterP
#1 Posted : 12 December 2018 22:29:46

Rank: Semi-Pro Level 1


Groups: Registered

Joined: 10/12/2018
Posts: 70
Points: 225
Location: London
Hi I’ve been asked to start my own thread my problem is as follows :-
My R2D2 won’t start up properly on power up it jerks forward slightly, the LED on the front is RED the head doesn’t rotate, my batteries are fully charged and I have checked all the wire connections are correct way round and are in the right place and none of the pins are bent, I’ve been asked to reorder the PCB from issue 99, which I will do and get back on any progress
arpurchase
#2 Posted : 12 December 2018 22:36:56

Rank: Super-Elite

Build-Diary Medal: Build-Diary Medal of HonourPublisher Medal: Article published MedalActive Service Medal: 500 post active service MedalPurple Medal: Super active service medal for 1000 postsRed Medal: Red MedalTurquoise Medal: Turquoise Medal for model making know-how contributionOutstanding Build: An award for an outstanding build
Groups: Administrators, Registered, Global Forum Support, Official Builds, Moderator, Tech Support

Joined: 27/09/2011
Posts: 13,933
Points: 42,298
Location: Dudley
Could you also post up the full spec of your batterys,this information should be available from the battery vendor.
Global Forum Support Team
Current builds:-C57,Zero, Lamborghini Countach, Caldercraft HMS Agamemnon,Robi,R2-D2, MFH Cobra .

https://www.youtube.com/...4f1LE86w&app=desktop
PeterP
#3 Posted : 12 December 2018 22:39:05

Rank: Semi-Pro Level 1


Groups: Registered

Joined: 10/12/2018
Posts: 70
Points: 225
Location: London
My batteries are LeiFire IMR 18650 3.7V 3000mAh
the batteries are button top
as for there continuous discharge rate i can't find that out even from the vendor
but it is low but i don't know how low?
arpurchase
#4 Posted : 12 December 2018 22:56:23

Rank: Super-Elite

Build-Diary Medal: Build-Diary Medal of HonourPublisher Medal: Article published MedalActive Service Medal: 500 post active service MedalPurple Medal: Super active service medal for 1000 postsRed Medal: Red MedalTurquoise Medal: Turquoise Medal for model making know-how contributionOutstanding Build: An award for an outstanding build
Groups: Administrators, Registered, Global Forum Support, Official Builds, Moderator, Tech Support

Joined: 27/09/2011
Posts: 13,933
Points: 42,298
Location: Dudley
Can you post a picture of the battery and is it protected or unprotected.
Global Forum Support Team
Current builds:-C57,Zero, Lamborghini Countach, Caldercraft HMS Agamemnon,Robi,R2-D2, MFH Cobra .

https://www.youtube.com/...4f1LE86w&app=desktop
PeterP
#5 Posted : 12 December 2018 23:12:34

Rank: Semi-Pro Level 1


Groups: Registered

Joined: 10/12/2018
Posts: 70
Points: 225
Location: London
arpurchase wrote:
Can you post a picture of the battery and is it protected or unprotected.


I assume it has protected because it has,Over charge and discharge protection
Short-circuit and over current protection
arpurchase
#6 Posted : 12 December 2018 23:18:28

Rank: Super-Elite

Build-Diary Medal: Build-Diary Medal of HonourPublisher Medal: Article published MedalActive Service Medal: 500 post active service MedalPurple Medal: Super active service medal for 1000 postsRed Medal: Red MedalTurquoise Medal: Turquoise Medal for model making know-how contributionOutstanding Build: An award for an outstanding build
Groups: Administrators, Registered, Global Forum Support, Official Builds, Moderator, Tech Support

Joined: 27/09/2011
Posts: 13,933
Points: 42,298
Location: Dudley
The batterys should be the unprotected type.
Global Forum Support Team
Current builds:-C57,Zero, Lamborghini Countach, Caldercraft HMS Agamemnon,Robi,R2-D2, MFH Cobra .

https://www.youtube.com/...4f1LE86w&app=desktop
PeterP
#7 Posted : 12 December 2018 23:25:00

Rank: Semi-Pro Level 1


Groups: Registered

Joined: 10/12/2018
Posts: 70
Points: 225
Location: London
Here a picture
PeterP attached the following image(s):
18650.jpg
Tomick
#8 Posted : 12 December 2018 23:42:06
Rank: Administration

Build-Diary Medal: Build-Diary Medal of HonourPublisher Medal: Article published MedalActive Service Medal: 500 post active service MedalPurple Medal: Super active service medal for 1000 postsRed Medal: Red MedalTurquoise Medal: Turquoise Medal for model making know-how contribution
Groups: Registered, Moderator, Global Forum Support, Administrator, registriert, Official Builds, Tech Support

Joined: 08/03/2010
Posts: 18,837
Points: 52,974
Location: UK
According to the Amazon spec for your battery, it says it’s a “Protected” type battery

https://www.amazon.co.uk...lashlight/dp/B01HGBUNWK

Therefore is unsuitable to use in R2 - the magazine spec clearly states “Unprotected” type.

If this is so, you need to replace your batteries but the concerning thing is that you may have also inadvertently damaged the MCU as a result of installing Protected batteries, you’ll only discover this after you install the correct batteries and see if your R2 starts up and runs as he should or may also need to replace the MCU, might even be worthwhile doing a swop anyway.
PeterP
#9 Posted : 12 December 2018 23:47:42

Rank: Semi-Pro Level 1


Groups: Registered

Joined: 10/12/2018
Posts: 70
Points: 225
Location: London
Tomick wrote:
According to the Amazon spec for your battery, it says it’s a “Protected” type battery

https://www.amazon.co.uk...lashlight/dp/B01HGBUNWK

Therefore is unsuitable to use in R2 - the magazine spec clearly states “Unprotected” type.

If this is so, you need to replace your batteries but the concerning thing is that you may have also inadvertently damaged the MCU as a result of installing Protected batteries, you’ll only discover this after you install the correct batteries and see if your R2 starts up and runs as he should or may also need to replace the MCU, might even be worthwhile doing a swop anyway.


Yes there are so many different type of 18650 out there
arpurchase
#10 Posted : 13 December 2018 09:03:25

Rank: Super-Elite

Build-Diary Medal: Build-Diary Medal of HonourPublisher Medal: Article published MedalActive Service Medal: 500 post active service MedalPurple Medal: Super active service medal for 1000 postsRed Medal: Red MedalTurquoise Medal: Turquoise Medal for model making know-how contributionOutstanding Build: An award for an outstanding build
Groups: Administrators, Registered, Global Forum Support, Official Builds, Moderator, Tech Support

Joined: 27/09/2011
Posts: 13,933
Points: 42,298
Location: Dudley
High Peter

The batterys you will need should be unprotected and a minimum of 3 amp discharge rate or higher.

Andy
Global Forum Support Team
Current builds:-C57,Zero, Lamborghini Countach, Caldercraft HMS Agamemnon,Robi,R2-D2, MFH Cobra .

https://www.youtube.com/...4f1LE86w&app=desktop
PeterP
#11 Posted : 13 December 2018 11:06:08

Rank: Semi-Pro Level 1


Groups: Registered

Joined: 10/12/2018
Posts: 70
Points: 225
Location: London
arpurchase wrote:
High Peter

The batterys you will need should be unprotected and a minimum of 3 amp discharge rate or higher.

Andy


Hi Andy

I have already ordered some unprotected button top with a 15A continuous discharge rate but 3.6v I think that should be ok? i think my previous ones where about 5A and 3.7v but protected i do hope they have not damaged the MCU? but as Tomick has suggested i have reordered issues 94 to maybe do a swop out and as you suggested I also reordered issue 99 to replace the PCB in that issue as well
stwood6
#12 Posted : 13 December 2018 14:29:22

Rank: Beginner Level 3

Groups: Registered

Joined: 30/05/2017
Posts: 21
Points: 69
Location: USA
Tomick wrote:
According to the Amazon spec for your battery, it says it’s a “Protected” type battery

https://www.amazon.co.uk...lashlight/dp/B01HGBUNWK

Therefore is unsuitable to use in R2 - the magazine spec clearly states “Unprotected” type.

If this is so, you need to replace your batteries but the concerning thing is that you may have also inadvertently damaged the MCU as a result of installing Protected batteries, you’ll only discover this after you install the correct batteries and see if your R2 starts up and runs as he should or may also need to replace the MCU, might even be worthwhile doing a swop anyway.


I know you're erroring on the side of safety, but it is really unlikely that using protected batteries would damage the MCU. The problem with the protected cells (as far as R2 is concerned) is that each individual cell has a circuit that detects high and low voltages within the cell - and will electrically disconnect the cell if it becomes over charged or over drained. Since R2 has 2 sets of 3 cells in series, if one of those cells decides it is fully charged and disconnects itself - that set will electrically drop out and the charger would continue trying to charge the remaining cells in the other set. If at least 1 cell in each set cuts off because it thinks it is fully charged - the R2 charger will now behave like there isn't a battery pack installed at all.

But if the R2 charger was built correctly, it should never apply voltage that would be high enough to damage the MCU under any circomestance (whether batteries were present or not). If anything, I could see that the charging component may be damaged if it has to deal with cells that are making their own individual decisions about when they 'participate' in the charging process.
Current Builds: R2D2, Millenium Falcon
PeterP
#13 Posted : 13 December 2018 14:38:54

Rank: Semi-Pro Level 1


Groups: Registered

Joined: 10/12/2018
Posts: 70
Points: 225
Location: London
stwood6 wrote:
Tomick wrote:
According to the Amazon spec for your battery, it says it’s a “Protected” type battery

https://www.amazon.co.uk...lashlight/dp/B01HGBUNWK

Therefore is unsuitable to use in R2 - the magazine spec clearly states “Unprotected” type.

If this is so, you need to replace your batteries but the concerning thing is that you may have also inadvertently damaged the MCU as a result of installing Protected batteries, you’ll only discover this after you install the correct batteries and see if your R2 starts up and runs as he should or may also need to replace the MCU, might even be worthwhile doing a swop anyway.


I know you're erroring on the side of safety, but it is really unlikely that using protected batteries would damage the MCU. The problem with the protected cells (as far as R2 is concerned) is that each individual cell has a circuit that detects high and low voltages within the cell - and will electrically disconnect the cell if it becomes over charged or over drained. Since R2 has 2 sets of 3 cells in series, if one of those cells decides it is fully charged and disconnects itself - that set will electrically drop out and the charger would continue trying to charge the remaining cells in the other set. If at least 1 cell in each set cuts off because it thinks it is fully charged - the R2 charger will now behave like there isn't a battery pack installed at all.

But if the R2 charger was built correctly, it should never apply voltage that would be high enough to damage the MCU under any circomestance (whether batteries were present or not). If anything, I could see that the charging component may be damaged if it has to deal with cells that are making their own individual decisions about when they 'participate' in the charging process.


That thought had already cross my mind but it's better to be safe than sorry
Tomick
#14 Posted : 13 December 2018 14:52:24
Rank: Administration

Build-Diary Medal: Build-Diary Medal of HonourPublisher Medal: Article published MedalActive Service Medal: 500 post active service MedalPurple Medal: Super active service medal for 1000 postsRed Medal: Red MedalTurquoise Medal: Turquoise Medal for model making know-how contribution
Groups: Registered, Moderator, Global Forum Support, Administrator, registriert, Official Builds, Tech Support

Joined: 08/03/2010
Posts: 18,837
Points: 52,974
Location: UK
stwood6 wrote:
Tomick wrote:
According to the Amazon spec for your battery, it says it’s a “Protected” type battery

https://www.amazon.co.uk...lashlight/dp/B01HGBUNWK

Therefore is unsuitable to use in R2 - the magazine spec clearly states “Unprotected” type.

If this is so, you need to replace your batteries but the concerning thing is that you may have also inadvertently damaged the MCU as a result of installing Protected batteries, you’ll only discover this after you install the correct batteries and see if your R2 starts up and runs as he should or may also need to replace the MCU, might even be worthwhile doing a swop anyway.


I know you're erroring on the side of safety, but it is really unlikely that using protected batteries would damage the MCU. The problem with the protected cells (as far as R2 is concerned) is that each individual cell has a circuit that detects high and low voltages within the cell - and will electrically disconnect the cell if it becomes over charged or over drained. Since R2 has 2 sets of 3 cells in series, if one of those cells decides it is fully charged and disconnects itself - that set will electrically drop out and the charger would continue trying to charge the remaining cells in the other set. If at least 1 cell in each set cuts off because it thinks it is fully charged - the R2 charger will now behave like there isn't a battery pack installed at all.

But if the R2 charger was built correctly, it should never apply voltage that would be high enough to damage the MCU under any circomestance (whether batteries were present or not). If anything, I could see that the charging component may be damaged if it has to deal with cells that are making their own individual decisions about when they 'participate' in the charging process.
Unfortunately that’s not the advice given by the manufacturer, who has stated that the R2 circuitry could be damaged by the use of Protected cells.
PeterP
#15 Posted : 13 December 2018 15:56:17

Rank: Semi-Pro Level 1


Groups: Registered

Joined: 10/12/2018
Posts: 70
Points: 225
Location: London
Tomick wrote:
stwood6 wrote:
Tomick wrote:
According to the Amazon spec for your battery, it says it’s a “Protected” type battery

https://www.amazon.co.uk...lashlight/dp/B01HGBUNWK

Therefore is unsuitable to use in R2 - the magazine spec clearly states “Unprotected” type.

If this is so, you need to replace your batteries but the concerning thing is that you may have also inadvertently damaged the MCU as a result of installing Protected batteries, you’ll only discover this after you install the correct batteries and see if your R2 starts up and runs as he should or may also need to replace the MCU, might even be worthwhile doing a swop anyway.


I know you're erroring on the side of safety, but it is really unlikely that using protected batteries would damage the MCU. The problem with the protected cells (as far as R2 is concerned) is that each individual cell has a circuit that detects high and low voltages within the cell - and will electrically disconnect the cell if it becomes over charged or over drained. Since R2 has 2 sets of 3 cells in series, if one of those cells decides it is fully charged and disconnects itself - that set will electrically drop out and the charger would continue trying to charge the remaining cells in the other set. If at least 1 cell in each set cuts off because it thinks it is fully charged - the R2 charger will now behave like there isn't a battery pack installed at all.

But if the R2 charger was built correctly, it should never apply voltage that would be high enough to damage the MCU under any circomestance (whether batteries were present or not). If anything, I could see that the charging component may be damaged if it has to deal with cells that are making their own individual decisions about when they 'participate' in the charging process.
Unfortunately that’s not the advice given by the manufacturer, who has stated that the R2 circuitry could be damaged by the use of Protected cells.


After i get the new batteries i'll try R2 again if I get the same problem i'll change the MCU which I've reordered anyway and recheck all connection if i still get the same problem then i change the PCB from issue 99 which i think is a Pi microcomputer
PeterP
#16 Posted : 16 December 2018 14:33:25

Rank: Semi-Pro Level 1


Groups: Registered

Joined: 10/12/2018
Posts: 70
Points: 225
Location: London
Ok reassembled R2 with new batteries(Samsung 30q) fully charged, checked all wiring for correct position and orientation, pressed power button but same as before R2 jerks forward head doesn't rotate RED light on front stays on R2 makes a few beeps, BLUE legs motor lights are on, none of the back LEDS come on R2 makes a few beeps when i press the first three buttons but nothing else, i manually turn the head but i get no response, next port of call is to change MCU when it arrives if that don't do it then i change the Orange Pi microcomputer in the head......
PeterP
#17 Posted : 16 December 2018 14:47:34

Rank: Semi-Pro Level 1


Groups: Registered

Joined: 10/12/2018
Posts: 70
Points: 225
Location: London
The common factor in this is the MCU after checking all the wiring of course, this could be a quality control issues with the MCU, people seem to be getting the same problem weather they used protected or unprotected batteriesConfused if changing the MCU doesn't fix the problem the next thing is the Orange Pi microcomputer in the dome which is static sensitive and can be damaged easily, of course it may be worth mentioning there could be a dodgy cable and buzzing them out may reveal a bad one or more!!
semaj
#18 Posted : 16 December 2018 14:56:52

Rank: Pro

Build-Diary Medal: Build-Diary Medal of Honour
Groups: Registered

Joined: 05/03/2017
Posts: 367
Points: 1,224
Location: Lichfield
Could be worth checking the cables that link between the head boards and boards in the body. Make sure they are properly connected. I saw a video on youtube where 1 chap was having all manner of trouble. Turned out to simply be one of them cavlea wasn't properly plugged in.
[center]building: R2D2
Building: Red Bull RB7 RC kit
PeterP
#19 Posted : 16 December 2018 15:00:04

Rank: Semi-Pro Level 1


Groups: Registered

Joined: 10/12/2018
Posts: 70
Points: 225
Location: London
Yes i did check to make sure they are right way round and properly seated
Tomick
#20 Posted : 16 December 2018 15:06:51
Rank: Administration

Build-Diary Medal: Build-Diary Medal of HonourPublisher Medal: Article published MedalActive Service Medal: 500 post active service MedalPurple Medal: Super active service medal for 1000 postsRed Medal: Red MedalTurquoise Medal: Turquoise Medal for model making know-how contribution
Groups: Registered, Moderator, Global Forum Support, Administrator, registriert, Official Builds, Tech Support

Joined: 08/03/2010
Posts: 18,837
Points: 52,974
Location: UK
PeterP wrote:
The common factor in this is the MCU after checking all the wiring of course, this could be a quality control issues with the MCU, people seem to be getting the same problem weather they used protected or unprotected batteriesConfused if changing the MCU doesn't fix the problem the next thing is the Orange Pi microcomputer in the dome which is static sensitive and can be damaged easily, of course it may be worth mentioning there could be a dodgy cable and buzzing them out may reveal a bad one or more!!
Indeed your problem may well be the MCU as a result of installing “Protected” batteries to start with., So it seems the only way forward is to replace the MCU and go from there.

In actual fact, the biggest factor so far with most problems reported, is incorrect batteries, incorrectly labelled wires, incorrectly plugged wires and plugs not properly fitted.
Users browsing this topic
Guest (2)
3 Pages 123>
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.

Powered by YAF | YAF © 2003-2009, Yet Another Forum.NET
This page was generated in 0.273 seconds.
DeAgostini