RunRyder RC
 3  Topic Subscribe
WATCH
 2 pages [ <<    <    ( 1 )     2     NEXT    >> ] 3299 views
HelicopterMain Discussion › KO Propo 7.2V 2123 FET servo connectors
06-01-2004 11:58 AM  13 years agoPost 1
I3DM

rrProfessor

Israel

My Posts: All  Forum  Topic

Hello guys.
im ordering me a couple of the above 7.2V servos for my X-spec's collective.
if anyone already bought one, im looking for a picture of the connectors on this servo (There are 2 of them), as i want to build the correct connector for the 7.2V voltage feed before i get the servo in hand. basically i need to see which connector goes to the Rx and which goes to the 7.2V voltage feed.
thanks a lot !

www.liorzahavi.com

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
06-01-2004 12:21 PM  13 years agoPost 2
mrNoodles

rrProfessor

Borlänge, Sweden

My Posts: All  Forum  Topic

Will this do?

Thx to Dokey!

/Fredrik
'Hm now I just have to find out where to connect the GV1 sensor to the Jazz80 ESC.

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
06-01-2004 12:27 PM  13 years agoPost 3
I3DM

rrProfessor

Israel

My Posts: All  Forum  Topic

Thanks Fredrik, Thats the picture i have too, but i dont understand the connections from it - in this pic you see a standard 3 wire connector, plus 1 pin, and on some pics i saw two 3 wore connectors i think.
so im not quite sure:
1. whats that 1 pin, where does it plug and how does it plug into anything ?
2. is the second connector (3 wire) the one going into the Rx ?
thanks.

www.liorzahavi.com

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
06-01-2004 12:45 PM  13 years agoPost 4
KCT

rrVeteran

Ontario, Canada

My Posts: All  Forum  Topic

Check this out

The blue wire goes to +7.2V all the others go to the receiver to the appropriate channal.
With the servo comes a description as well as the explaintion of all the connections.

Cheers

Kay


That's not flying, that's crashing with style...

TeamBob00, WildCat, Helitron,

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
06-01-2004 12:47 PM  13 years agoPost 5
I3DM

rrProfessor

Israel

My Posts: All  Forum  Topic

thanks KCT, i already know how the wiring is done, what i dont understand is: in the second picture you have 2 complete plastic connectors, and in the above picture that Mrnoodles added you see 1 connector and only ONE pin, do you cut that pin off and solder a connector or something ? thats what i want to know.
thanks a lot for your help.

BTW in the diagram you put i think you should add a switch on the BLUE wire, otherwise the KO servo will be powered at all times and will be draining the battery constantly.

www.liorzahavi.com

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
06-01-2004 03:27 PM  13 years agoPost 6
KCT

rrVeteran

Ontario, Canada

My Posts: All  Forum  Topic

I3DM,

Yes, initally we used two connectors. But it was better to solder the blue wire directly to the + pole of the battery. Yes, you could put a seperate switch into the blue (seperate) line. We have found a better way of doing that by using a LIPO controller which switches the negative pole instead of the positive pole. This way you need only one switch - e.g. THE LIPO Controller.


That's not flying, that's crashing with style...

TeamBob00, WildCat, Helitron,

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
06-01-2004 11:06 PM  13 years agoPost 7
I3DM

rrProfessor

Israel

My Posts: All  Forum  Topic

KCT, does that servo come with a good manual that describes connections ? im still a little lost about which cable is which.
anyway, the 2 connector system looks better in my taste.

www.liorzahavi.com

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
06-01-2004 11:49 PM  13 years agoPost 8
SAL

rrVeteran

Oakville, Ontario, Canada

My Posts: All  Forum  Topic

when you buy the Kopropo servo, it comes with a small extension which connects to the blue pin, the other side has a female end which can be put into a connector.

I can also see another question which will prop up once you get the servo, and the answer is 'no' you do not need to use the supplied resistor which also comes with the servo.

.

[color=red]SAL[/color]

PM  EMAIL  GALLERY  Attn:RR  Quote
06-01-2004 11:53 PM  13 years agoPost 9
volare

rrVeteran

N/A

My Posts: All  Forum  Topic

What are the specs on these servos?(torque & speed)

PM  EMAIL  GALLERY  Attn:RR  Quote
06-02-2004 12:04 AM  13 years agoPost 10
sluggo

rrElite Veteran

Kitchener Ont

My Posts: All  Forum  Topic

Servo spec's

Speed .06
Torque 9.5kg
weight 55g

Chris

Teambob00

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
06-02-2004 12:21 AM  13 years agoPost 11
KCT

rrVeteran

Ontario, Canada

My Posts: All  Forum  Topic

OK, here is the instruction sheet that comes with it.

to be correct with the Specs.

Servo spec's

Speed 0.06s/60 Degrees @ 7.2V
Torque 9.5kg/cm (132 in/oz)
Weight 55g


Kay


That's not flying, that's crashing with style...

TeamBob00, WildCat, Helitron,

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
06-02-2004 07:52 AM  13 years agoPost 12
I3DM

rrProfessor

Israel

My Posts: All  Forum  Topic

Thanks a lot guys !

www.liorzahavi.com

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
06-07-2004 11:13 PM  13 years agoPost 13
I3DM

rrProfessor

Israel

My Posts: All  Forum  Topic

Ok guys i should be recieving my 2 KO 2123 servos in a couple of days.
in the meanwhile i made a servo voltage wire coming out from the battery with a "female" (the opposite from a servo) connector, so that it could fit into the connector as pictured here:
http://www.runryder.com/helicopter/...54/DSC03181.jpg
this connector is a 7.4V feed straight from the Duralite pack with 2 wires (red and black). thats all it takes for voltage feed right ??

thanks.

www.liorzahavi.com

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
06-08-2004 02:36 AM  13 years agoPost 14
4cyclic

rrKey Veteran

Montreal, Can. and northern Vermont

My Posts: All  Forum  Topic

Kay, the LIPO switch/controller is very nice.
I would say it's safer to charge the lipo receiver pack outside the heli. A charger failure can overcharge and burn down the heli. Do you charge outside the heli or do you find too inconvenient to remove pack?
Also, with only 2 lipos cells, there is no redundancy built-in. If one cell fails you're having your gyro reset at 3.7volt, one cell. Would'nt it be better with 3 cells or a 2s2p pack. Or maybe just use the Duralite 4 cell pack.

J.L.

PM  EMAIL  GALLERY  Attn:RR  Quote
06-08-2004 02:47 AM  13 years agoPost 15
KCT

rrVeteran

Ontario, Canada

My Posts: All  Forum  Topic

yes, I agree it is certainly safer to charge the pack outside the heli.
The good new is you can choose any battery type and configuration
as you please. That includes redundent LIPO packs as you already mentioned.

Cheers

Kay


That's not flying, that's crashing with style...

TeamBob00, WildCat, Helitron,

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
06-08-2004 05:34 PM  13 years agoPost 16
4cyclic

rrKey Veteran

Montreal, Can. and northern Vermont

My Posts: All  Forum  Topic

Kay, how does the 2023 KO servo react to voltage fluctuation from the Lipo pack. It must start at 8.4v fully charged and then drops to 6.6v at the end or somewhere in that range. Do you notice any change in feel ?


J.L.

PM  EMAIL  GALLERY  Attn:RR  Quote
06-09-2004 12:38 AM  13 years agoPost 17
KCT

rrVeteran

Ontario, Canada

My Posts: All  Forum  Topic

4cyclic,

so far the KO's seem not to be affected at all. Under real world condition you may want to discharge your LIPO pack not necessarely
down to 6.6 V. We usally discharge to approx. 7.0 V which still gains
about 7-8, 10 minute flights of brutally hard 3D beating.

For what I have seen so far there seems to be very little if not almost barely noticable drop in performance. That is most likely due to the
LIPO pack current delivery capability and failry flat voltage discharge curve.

Compared to the common 4.8V system/servos the difference is clearly visible. In other words, a difference like day and night.

Cheers

Kay


That's not flying, that's crashing with style...

TeamBob00, WildCat, Helitron,

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
06-09-2004 01:42 AM  13 years agoPost 18
4cyclic

rrKey Veteran

Montreal, Can. and northern Vermont

My Posts: All  Forum  Topic

Thanks Kay, I've got 2 of those 2023 to try. I'll start with a pack of 6 nimh 2300 mah cells with a Duralite 5.1 reg.

J.L.

PM  EMAIL  GALLERY  Attn:RR  Quote
06-09-2004 04:41 PM  13 years agoPost 19
I3DM

rrProfessor

Israel

My Posts: All  Forum  Topic

Hey KCT,
i just got my two 2123 FET servos today, and im still not 100% sure about connections, even after reading the instructions that come with it.
OPTION #1:
i would like to connect it like shown here:

in this case what i have to do is solder the one blue single wire into a female connector to act as the PLUS polarity of the 7.2V feed, together with the BLACK wire (on the same connector) from the original connector acting as MINUS to the 7.2V feed ?

OPTION 2:
Might connect it like this - connect the 3 wire connector (stock) into the Rx and connect the Blue wire (with anther connector) into the PLUS polarity of the 7.2V voltage feed i made, similar to here:

will both of these work the same ? Option #2 seems somewhat easier with the soldering.

thanks for your help in clearing this up.

www.liorzahavi.com

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
06-13-2004 02:09 AM  13 years agoPost 20
I3DM

rrProfessor

Israel

My Posts: All  Forum  Topic

Bump.
would still like to know about the connections.
basically what i still need to know is this: if i use this system:

ill be using a standard Duralite regulator and will be running ONLY the blue wire coming out from the Y connection after the switch (similar to the second option, the switching will be done on the BLUE wire alone) - is there a reason for this NOT to work ?

thanks.

www.liorzahavi.com

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
WATCH
 2 pages [ <<    <    ( 1 )     2     NEXT    >> ] 3299 views
HelicopterMain Discussion › KO Propo 7.2V 2123 FET servo connectors
 Print TOPIC  Make Suggestion 

 3  Topic Subscribe

Thursday, December 14 - 1:22 pm - Copyright © 2000-2017 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online