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XQ-S4120D SERVO (Wiring issue???)

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XQ-S4120D SERVO (Wiring issue???)

Post by derrickwthip4 on Fri 11 Nov 2011 - 18:00

Hey I bought this servo, when I plug to my Wraith stock receiver ST channel (Wire Brown,Red n Orgage) than I turn on the system n when I stop turning left n right I still can hear a clicking sound (ST trim already zero)from this servo, so I switch back to the stock servo it work as good?
Q1. Do I need to do a rebinding?
Q2. Is it the XQ-Power servo need to use higher voltage ? due to this I need to connect to the battery direct ?
Just to double check direct connection:-
Servo RED wire go to batt RED wire right?
Servo BROWN wire go to batt BLACK (negative ) wire right?
Servo ORANGE (signal) wire go to RX ST channel right?

Remark:
Do I still need to connect another wire from servo Brown(negative) point to Receiver negative point (ST Channel)?

Hope to receive some info tks again bounce




Last edited by derrickwthip4 on Fri 11 Nov 2011 - 19:58; edited 2 times in total (Reason for editing : Typo error)

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Re: XQ-S4120D SERVO (Wiring issue???)

Post by boolean21 on Fri 11 Nov 2011 - 20:24

Bro, if you run the servo direct from the battery, connect the signal wire from the servo to the rx, and also the ground wire from the servo to the rx...

In short,
servo red black to battery red black
Plus
Servo black orange to rx black orange

without the common ground, your signal do not have a common ground reference..

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Re: XQ-S4120D SERVO (Wiring issue???)

Post by RTECH on Fri 11 Nov 2011 - 20:27

Yup , you need to join all negative togather (recomanded by boopek) to minimise interference.
Cause if you dun join the servo brown to the rx, the servo signal will use the bat negative as a reference ground. Surging from bat, might interfer with the signal from rx to servo.

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Re: XQ-S4120D SERVO (Wiring issue???)

Post by derrickwthip4 on Tue 15 Nov 2011 - 21:59

Hi befor I connect direct to battery I try the normal way when I plug to my Wraith stock receiver ST channel (Wire Brown,Red n Orgage) than I turn on the system n when I stop turning left n right I still can hear a clicking sound (ST trim already zero)from this servo, so I switch back to the stock servo no clicking sound at all.
I connect all the wire as mention(direct to Batt) but still the same got clicking sound n also rebind the TX to RX still the same could it be the XQ-Power Servo default or ???

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Re: XQ-S4120D SERVO (Wiring issue???)

Post by RTECH on Tue 15 Nov 2011 - 22:40

But does the servo move when there is clicking sound?

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Re: XQ-S4120D SERVO (Wiring issue???)

Post by derrickwthip4 on Tue 15 Nov 2011 - 23:04

RTECH wrote:But does the servo move when there is clicking sound?
When moving no sound just like normal when not moving got even I try to trim 0% to 100%

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Re: XQ-S4120D SERVO (Wiring issue???)

Post by derrickwthip4 on Tue 15 Nov 2011 - 23:06

RTECH wrote:But does the servo move when there is clicking sound?
Oh sorry not moving got sound.(I mean when not turning the TX wheel got sound )


Last edited by derrickwthip4 on Tue 15 Nov 2011 - 23:12; edited 1 time in total (Reason for editing : Add word)

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Re: XQ-S4120D SERVO (Wiring issue???)

Post by ShaiAX55 on Tue 15 Nov 2011 - 23:14

From what i read about Digital HV Servos, they are noisy. Mine does. If everything works well there is nothing to worry about. I even used a CC BEC and running a Servo for DIG. Tested and working fine with no ESC hiccups.

Not a wiring expert nor RC specialist. But correct me if im wrong.

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Re: XQ-S4120D SERVO (Wiring issue???)

Post by derrickwthip4 on Tue 15 Nov 2011 - 23:19

ShaiAX55 wrote:From what i read about Digital HV Servos, they are noisy. Mine does. If everything works well there is nothing to worry about. I even used a CC BEC and running a Servo for DIG. Tested and working fine with no ESC hiccups.

Not a wiring expert nor RC specialist. But correct me if im wrong.
Tks again it work as normal :-)

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Re: XQ-S4120D SERVO (Wiring issue???)

Post by ShaiAX55 on Tue 15 Nov 2011 - 23:24

derrickwthip4 wrote:
ShaiAX55 wrote:From what i read about Digital HV Servos, they are noisy. Mine does. If everything works well there is nothing to worry about. I even used a CC BEC and running a Servo for DIG. Tested and working fine with no ESC hiccups.

Not a wiring expert nor RC specialist. But correct me if im wrong.
Tks again it work as normal :-)

Np bro. Was also hoping there is an Axial Wraith thread for Wraith builds and mods. Someone shld make one already. Hehe. Very Happy Wraith FTW!

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Re: XQ-S4120D SERVO (Wiring issue???)

Post by boolean21 on Tue 15 Nov 2011 - 23:25

hi,
i've not used this servo before...

but after google-ing, it seems like your issue is very similar or the same as the one in this thread http://www.rcgroups.com/forums/showthread.php?t=1206040&page=2

when you turn the throttle, servo works as per normal, when servo is idling, there is "clicking"

from the last post (quoted below) after the TS changed the receiver, the issue is gone...
the jittering could be caused by the receiver making the servo trying to re-center itself...


Originally Posted by mike50
Try a different receiver.

The original M5 receivers had a fairly large jitter in the outputs and some servos deadband is smaller than this jitter. That causes the ticking sound. FMA modified this in the M5 V2 to reduce the jitter.

This was a problem with the original M5 and HS-55 servos in particular. I don't know about the deadband on the HS-45 or HS-65, but they may also have small deadbands, causing the ticking with the original M5.

Mike
I just got a Berg 4 channel receiver 4l or something, and all is good, so you were right Mike. Neither servo makes a sound any longer. I guess digital servos make the same sort of noises as I was getting, where they are constantly centering themselves. Dont' know how people can stand it. Maybe its just me...

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Re: XQ-S4120D SERVO (Wiring issue???)

Post by derrickwthip4 on Wed 16 Nov 2011 - 0:10

Hey tks everyone I thing you all got the point will use it n see how it gos lor .

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Re: XQ-S4120D SERVO (Wiring issue???)

Post by RTECH on Wed 16 Nov 2011 - 19:57

My As-2 could not pull back to neutral and winening sound when my TX steering is neutral . But when i lift up my truck front the servo back to neutral and no sound.
I suspect my As-2 not enuff strength to go back to centre forcing the motor inside during idling which cause melt down.
For the XQ-power servo, it is able to return to neutral , some ON and OFF jittering sound , should not be a problem.
If you hear the servo winening all the way , that means the servo is on stress.

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Re: XQ-S4120D SERVO (Wiring issue???)

Post by RTECH on Mon 20 Feb 2012 - 18:05

No My XQ servo was damage yesterday cause water slip in from the wire rubber boot (as shown in pic below) .The XQ servo not really waterproof or i dun think it is even splash proof.
Water even enter through the servo head even though there is internal O ring.


Razz But after some cleaning and hair dryering, manage to save it !

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Re: XQ-S4120D SERVO (Wiring issue???)

Post by boolean21 on Mon 20 Feb 2012 - 18:23

Alright! Good news. Smile

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Re: XQ-S4120D SERVO (Wiring issue???)

Post by slow on Mon 20 Feb 2012 - 19:10

Good to hear that.. Very Happy

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Re: XQ-S4120D SERVO (Wiring issue???)

Post by derrickwthip4 on Mon 20 Feb 2012 - 19:24

Wah like take me have to becarefull liao affraid
batter waterproof the rubber boot n servo head swee swee if not pack n go back home liao lol!

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Re: XQ-S4120D SERVO (Wiring issue???)

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