csm sl720 setup advice please.

[Telehandler]

struggling to get a decent setup on one of my 700 ,s here with the sl720 and align ds620, all linkages set up correct ,direction good but cant get it set up in h/h and servo moving very slowly either direction ! set up on dx7 ,gear set to gyro ,been playing around with numbers in the gyro sens menu but cant get a decent speed from the servo!also when the gyro is powered up im getting no change in the lights when i flick gear switch, servo is brand new btw any advice or link to setup on a dx7 would be great!

[Rainman]

PM Sent.

Cheers

Richard

[Telehandler]

Thanks richard i have replied! just looking for basic setup with the dx7 as these csm,s are unknown to me lol

[p4ddy]

You need to set Gear to Gear & have the gyro plugged into gear so that you can toggle between rate & HH to access quick set up.

[p4ddy]

Firstly you need to set the tail with a slight offset to (i think it's blades at around 30deg off centre, slider towards the tail case) I can't remember what values to set in your gear menu but you should then be able to toggle as it's powering up until it moves to signal it's in set up. Then work your way through each setting until complete. Next take heli out & test hover (in rate) & adjust link till your solid in rate. You'll still need to do quick trim but that can wait. Now stick the gain in HH up high as the 720 can take a good amount, i think i had mine around 90% at one point.

[Tean]

I suspect your problem may be that you are using the gyro sens system in the DX7. I suggest you inhibit this feature and use the travel adjust values to set the gyro gain.
The servo often appears to work slowly on the ground with the 720. It doesn't mean anything is wrong.
In normal operation, switching the gain won't change any of the LEDs on the gyro. The only time the LEDs will change is when you toggle the switch to go into the quick set up mode.

Link to CSM instructions if you need it.
http://www.rcmodels.org/csm/SL720_manual.PDF

[Telehandler]

Thanks paddy! thats the problem, i dont know what the quick setup consists of as no manual with the gyro,had a look online earlier and couldnt find anything regarding manual

[p4ddy]

Looks like Tean has found it for you


Tean!!! Welcome back mate...Your fountain of knowledge has been missed

[Telehandler]

Thanks paddy,tean just updating adobe so i can download it!

[Tean]

Thanks P4ddy.
Been away from flying for a while, but once bitten, forever....

[Telehandler]

Just set it up via the quick set up procedure as the manual says and all looks good here on the table, set the limits as csm said and base values in the tx ,servo still very slow but will know better when i fly it next,just hope its not the servo.

[waveydavey]

Thanks paddy! thats the problem, i dont know what the quick setup consists of as no manual with the gyro,had a look online earlier and couldnt find anything regarding manual

Heres all the manuals you need

CSM SL720 & SL630 gyros

[stanley]

I dont know if you have solved your set up problem(CSM 720) but here·s mine for my T rex 550 FB using a DX7 TX and AR 8000 RX

input select aux 2 gear
aux 2 gear

gear channel used for gyro gain lead :rate mode 60% HHmode (gear switch down) 87%

I have been using this set up for over a year now and have had no problems at all hope this might help

[Andy from Sandy]

I dont know if you have solved your set up problem(CSM 720) but here·s mine for my T rex 550 FB using a DX7 TX and AR 8000 RX

input select aux 2 gear
aux 2 gear

gear channel used for gyro gain lead :rate mode 60% HHmode (gear switch down) 87%

I have been using this set up for over a year now and have had no problems at all hope this might help

When you move the rudder stick on the tx does the servo move fast or slow? The OP has it setup he is concerned about servo speed.

When I was flying nitro with the CSM720 gyro I could get the gains into the 90s.

[Telehandler]

With the heli sat on the bench the servo is very slow and lazy ! But not able to test in flight yet,just the servo speed was concerning me!