SCN5 vs SCN6

Topics and questions about actuators etc.

SCN5 vs SCN6

Postby DarKn1ght » Fri 9. Aug 2013, 07:35

Hi All,

Brand new to actuators, and have been trying to locate either the SCN5 or SCN6 in Australia.

Does anyone know of any suppliers that sell these in Australia?
I got asked the below questions from one of the suppliers.
Can anyone provide the answers?

What is the required voltage… 12 or 24 volts

What is the max load / weight ?

What is the speed you require ?

What stroke length ?

Do you require position feed back ?

Controller , servo or basic controller ( short two pins moves out short another two moves in).

Duty cycle ?

Any help would be VERY much appreciated.
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Re: SCN5 vs SCN6

Postby crs2012 » Fri 9. Aug 2013, 08:41

SCN-5 Spec sheet

http://www.miraiintertech.com/home/downloads/SCN5.pdf
•Includes closed loop servo motor, servo amplifer and control
•Independently programmable position, speed, acceleration, force, etc.
•Easy to use; make a few 24 VDC connections and program in 15 minutes!
•Program from handheld pendant or from PC
•Virtually infinite positioning possible
•Networkable up to 16 axes
•DeviceNet and CC-Link gateways available
•50-300mm stroke versions
•Repeatability as good as ±0.01mm
•400mm/sec max. speed
•IP40 environmental protection
•303SS rod and tip-thread


Many of your questions can only be answered by you, because the design of your project will affect many variables.

I use the 150mm model for my seat mover... 100mm is probably the minimum you want to use.
You probably don't want anything lower than 100mm/sec (speed)

SCN5/SCN6 is supported native in X-Sim with plugin.
http://www.x-sim.de/forum/viewtopic.php?f=44&t=58 Hardware set up.
http://www.x-sim.de/forum/viewtopic.php?f=39&t=59 Software set up with X-Sim.

If you choose to go with a different actuator, you will need to search the forums to see how to communicate with X-Sim.
http://www.x-sim.de/forum/viewtopic.php?f=44&t=897 More info here about x-sim with different actuator types.
I have seen custom, retrofitted, and DIY actuators used in other projects before. But this method will require some more effort on your part. And there will be much less information or help available for custom made options as well. But you can still try asking in the forums for advice with hardware and interface options once you settle down with more details.
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Re: SCN5 vs SCN6

Postby DarKn1ght » Fri 9. Aug 2013, 11:15

Excellent!

Thanks for the reply!
I have been on the site for a few weeks now, and slowly collecting parts.

I have also been on your project page previously, and was very impressed.

I figured that would be the answer, but thought I would put it out there.
I will do a bit more research on it.
It seems as though the popular actuator is the SCN5, as it has the most community & x-sim support.
I didn't really want to make this a custom project, so I'm happy to go with the SCN5.
I read that the SCN6 will take a heavier load, but is slower than the SCN5, which takes a lighter load.
I weigh about 105kg, and have a light seat, so hopefully the SCN5 should suffice.

My idea is very similar to your current design, so your project page will most likely come in very handy.
I plan to have the pedals and steering wheel on the moving platform, just hope it can take the weight.

I hope you wouldn't mind if I messaged you from time to time if I had any questions.

Many thanks,

DarKn1ght
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Re: SCN5 vs SCN6

Postby crs2012 » Sat 10. Aug 2013, 01:17

I read that the SCN6 will take a heavier load, but is slower than the SCN5, which takes a lighter load.


Be aware that no matter what motor/actuator you decide to use, the speed will always be affected negatively when you
apply load (torque) to it. The speeds listed in these spec sheets are given with NO load. Each solution will vary by how much based on what you decide to use for motion and the design and weight of your sim. This is where engineering, math, and some trial and error comes into effect.

The SCN5 is better suited towards moving a seat like I use at a great rate of speed because of small amount of load(torque) applied to the actuator during movement. I did attempt to move the pedals and steering wheel all together during a trial when I first started, and I was not pleased with the results. These actuators have weaker pull force than push force. So when shifting larger weight, by having to pull it back, was really straining hard to do so. The speed was decreased dramatically, and I feared that continued use would eventually cause damage to the actuators. So I stayed with the seat mover setup I use now.

The SCN6 would be a better option for moving more weight. But the cost will go up as well.

Spec Sheet for SCN6
http://www.miraiintertech.com/home/downloads/SCN6.pdf

You have to make sure that you balance your sim in order to keep your load on actuators within limits of operation for the
model you choose to use. There is no 'easy' answer on how to calculate this. This is where you come in with trial and error, and problem solving through your engineering/construction skills.

Just things to keep in mind when choosing your design and motion system.

It's a very exciting and satisfying feeling once you complete your project and have it working just the way you want it.
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