Odyssey 7Q Auto Power-On Question / Problem

T

thylor

Member
Hello communitiy!

When the 7Q recieves power, it automatically boots up. Is this intended and is there a reason for this behaviour? Because, in my setup, i have a strange problem. This setup consists (basically) of:

FS 700 R
Odyssey 7Q
Bebob COCO http://www.bebob.de/Akkus-und-Ladegeraete/COCO-15V-III.html
V-Mount Battery
Hirose Cables

DSC00161.jpg

When the 7Q is running, as soon as i power the FS700, the COCO switches off after a few seconds (i might provide you with a video, but i think i am able to explain it in words). It looks like there is some kind of safety switch within the COCO, because the power indicator light on the COCO switches off while this happens. I have to switch the COCO off and on again to proceed.

There are two ways to get this setup to work correctly:

Power on the COCO
Wait until the 7Q has booted
Shut down the 7Q
Power the FS700
Wait until FS700 has booted
Power on the 7Q

or

Disconnect the SDI cable between FS700 and 7Q
Power on COCO
Power on 7Q and FS700 in whatever order you like (even simultaneously)
Wait until both have booted
Reconnect SDI cable

Once powered correctly, the setup runs flawless for hours. I dont want to blame CD for this behaviour, i am just curious if anybody can reproduce it. On the other hand, everything would be fine if the 7Q wouldnt auto power-on as soon as a battery is connected. The emergency shutdown doesnt look very good for the whole setup, i am scared of damaging my equipment...

Thanks in advance for any help!
 
The Odyssey7Q will power on the moment it detects power being fed to it. Nothing we can change about that.

Don't know why your COCO unit is shutting itself down, unless there is some sort of power surge going on when the FS700 powers up. Perhaps you could route power through the COCO to the Odyssey differently. While the camera needs a fairly regulated voltage, the Odyssey7Q can accept anywhere from 6.5-32 volts, so you have a lot of options. I would expect that the different voltage regulator circuits within the COCO unit have protection breakers, designed to shut off if you draw too much power at once. So I suggest you power the Odyssey from a different voltage circuit than the one powering the FS700. In your setup the FS700 is getting power from the 7.5v regulated circuit. I would suggest feeding the Odyssey from a 12v circuit. If there is an unregulated one, such as a straight P-Tap port directly on the battery plate itself, then this is probably your best option as it will not tax the regulating circuits in the COCO at all. The Odyssey self-regulates so this is not a concern.

I just took a quick look at the Bebob website link. While it does not note how much amperage each circuit can handle, I do believe that this is your issue. Switching the feed to the Odyssey over to one of the provided P-Tap connectors should solve your issue. Convergent Design makes a P-Tap cable for the Odyssey7Q.
 
Hello, this is more of a setting request, than a problem, but it would be nice to be able to switch off O7Q by double pressing the shut down button. I hate to leave a fingerprint on the middle of the screen after every use. I don't think people will accidentally press twice the already 'hard to press' button.
Thanks Mitch!
 
Hello Mitch,

Thank you very much for looking into this. This is really astonishing support you do within this forum!

The Odyssey is powered from a 12v circuit. I did not use the D-Tap connectors but the Hirose ones (4pins, ground, 5v, 7.6v and unregulated). I too have thought of giving the D-Tap a try.

Unfortunately, my problem has gotten worse: The COCO switches off 2 seconds after hitting the record button even if the setup was powered up in the way I described above, but only when in 4k 25p mode. So I did some further tests yesterday. I came to another strange conclusion: It has something to do with the Sony FMU Flash Memory. This is the reason I did not come across this problem earlier, as I didnt use the simultaneous recording (to 7Q and FMU) until yesterday.

To get my setup working, i have to disable the simultaneous recording, and to eject the FMU. In most cases I do not need this function, but i am not sure anymore, how reliable the whole system is. Or did I miss any advice to not use this function? With the FMU ejected the system works flawless again, I can record, switch framerates, format SSDs, and finally power up and down the whole thing in whatever order I want. Crazy.

I might have to contact Bebob about this problem. I have absolutely no explanation for this. I cant imagine the FMU drains so much power. And I thought I have bought one of the best battery plates on the market...
 
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Sounds like could be issue with the plate. I use 7Q simultaneously with FMU day in day out without problem albeit 12 volt DTap out and different brand of plate.
 
I don't know details on the Bebob unit, but every circuit has to have a maximum power level. Sounds like using the FMU pushes it over just enough that you hit it. If the Bebob is wired the way I think it is, then the P-Tap sockets will not be regulated sources like the Hirose connections are. Even if you use the 12v output from one of the Hirose connectors, this is likely a regulated circuit. The Odyssey does not need regulation, so it is better to connect it to a P-Tap that powers straight from the battery. Some batteries now even have P-Tap ports right on them.

From your descriptions I'm quite sure that you are overtaxing your Bebob COCO. Rerouting the power for your Odyssey7Q should solve the issue.
 
Thanks a lot for your answers!

Unfortunately, using the D-Tap outputs didnt help. So i am really helpless again, seems i have to contact Bebob about this issue (hopefully they care as much as Mitch does).

Apart from that, the 12v Hirose Outputs are unregulated too (so they are not 12v in fact). But it seems there are different circuits for D-Tap and Hirose outputs, as there are different maximum loads given on these outputs, according to http://www.bebob.de/Akkus-und-Ladegeraete/COCO-15V-III.html

2 Twist-D-TAP 12V (Akku Spannung) 2,5 A Ausgänge
2 USB 5V 1A Ausgänge
4 Hirose 4p 5/7,6/8,4/12V (Akku Spannung) 2 A Ausgänge
​
Click to expand...
 
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good and bad news!

i have contacted the bebob support, and they have been very helpful. finally they invited me to visit them in munich. we did a lot of tests and came to the conclusion, that the problem was caused by the batteries! i used brand new batteries from axcom http://www.videodata.de/shop/produc.../V-Mount-Akkus/Axcom-2x-U-SVLO-SM-CPVM-2.html

we have tested a lot of different bebob batteries, and everything worked like a charm. so i have learned my lesson, now i hope i can return these axcom batteries and get bebob batteries in exchange from wehre i bought the whole setup...
 
sorry for you! I was hesitating some months ago which battery to buy and in the end I was buying the bebob V95.
 
Clermond said:
sorry for you! I was hesitating some months ago which battery to buy and in the end I was buying the bebob V95.
Click to expand...
thats what i meant with "learned my lesson" ;)

i shouldnt have tried to save on the batteries. these are the only "cheapo" parts in my setup...

while... theyre not really cheap. they just dont like to work together with the Bebob COCO (and the rest of my setup).
 
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