Lifestand wheelchair /leg bag emptier.

[funkykeyboard]

Lifestand wheelchair /leg bag emptier.

Starting a new thread, because doing the same thing as the previous thread, but on a different wheelchair, Lifestand wheelchair.

Hi I want to connect one of these (solenoid I can use to empty my leg bag);

to this "actuator";

connecting to 1 of these sockets;

so I can operate the solenoid/leg bag emptier and control it using my joystick.

The first question is, what connection do I buy from eBay (an eBay link would be good) so I can connect the black and red wire from the solenoid to the actuator, without blowing up my wheelchair LOL.

I do have the software to program my wheelchair R-net controller and actuator, but will work out how to do that later.


Any advice appreciated, Tremulous Tetra. :-)

[Burgerman]

The actuator module will easily power that. And its 24v DC lowcurrent so no problem. You just need a plug either from PGDT or any old actuator or something that fits. And then to program it you just basically copy the other settings that are already in use to the new channel.

You might find that connector on many electronics suppliers websites if you knew what it was called, never tried finding one. PGDT are quite helpful, but not cheap or fast.

[rover220]

normal female teminals will fit into actuator module nicely.

[Burgerman]

Are you refering to 6.3mm spade terminals?

[rover220]

Are you refering to 6.3mm spade terminals?

yes, might just need the insulation squashing slightly but they fit and work fine.

[Burgerman]

Good to know. Heatshrink is a little thinner. Should be perfect.

[rover220]

Good to know. Heatshrink is a little thinner. Should be perfect.

indeed, also worth noting the finger in the picture is pointing to to the 2 inhibit channels in the module

[Burgerman]

http://marketing.sunrisemedical.com/Tec ... Manual.pdf

Theres a newer version of this, but the ISM connections are on page 133 -- I have used that before to figure stuff out. Elsewhere it explains the programming. 5 channels are usually used for tilt, footrest length or footrest angle and individual footrests angle along with recline, lift, leaving one unused. You can rename that to whatever you want like Pee! So it shows up as this on your colour display.

[Burgerman]

Once you connect to an unused channel (lets say channel 6 here for clarity) You will need to set the programming to be like this below.

Call it empty, pee, whatever you wish.

Chise the channel number, then click the next feild to open up this white box. Choose chanel 6 (or whichever you use) and select any of the wheelchair parts or arrows (I choose the only sensible one here). And name it. This is what will show on your joystick. Remember that you can rename the others too. So do your worst! Later...

Theres a feild called "INVERT AXIS" which makes the controls for a motor reverse. So you can swap the direction of joystick to make recline go the other way (forwards to recline) for e.g.... This will do NOTHING on a solenoid, as that will work the same whichever way you push the joystick. Pee will stop when you release the stick.

And thats all there is to that...

[Burgerman]

I might add that it will work regardless, but you might change current to say 2A, UP/DOWN in case of short or something, as it wont need 4A or whatever the default is. And disable end point sensor. Although you can also leave it enabled to work as a "fuse" to protect the wiring in case anything shorts out.

And the white field is set to 100%, (2 fields, up and down speeds) that gives 24V.
If you want to connect a device or actuator that is say 12V, or 6V then all you need do is set that to 50% or 25% instead.

[funkykeyboard]

So I am buying these?
https://www.ebay.co.uk/itm/Uninsulated- ... ctupt=true

Any advice appreciated, Tremulous Tetra. :-)

[Burgerman]

Yes and some heat shrink. And solder...

[rover220]

probably get some for cable thinner than 2.5mm

[funkykeyboard]

Good to know. Heatshrink is a little thinner. Should be perfect.

indeed, also worth noting the finger in the picture is pointing to to the 2 inhibit channels in the module

can you give me a clue rover, IF "the 2 inhibit channels" are the wrong place I want to connect to, where the ones I should be connecting to are and how I would designate the difference between positive and negative?

Any advice appreciated, Tremulous Tetra. :-)

[Burgerman]

http://marketing.sunrisemedical.com/Tec ... Manual.pdf

Theres a newer version of this, but the ISM connections are on page 133 -- I have used that before to figure stuff out. Elsewhere it explains the programming. 5 channels are usually used for tilt, footrest length or footrest angle and individual footrests angle along with recline, lift, leaving one unused. You can rename that to whatever you want like Pee! So it shows up as this on your colour display.

This...

And for your purposes it does not matter which is the polarity... There isnt one.

[funkykeyboard]

So this is my actuator.
so I should put the 2 female connectors on the 2 spade connectors marked with a red and great..



I'm guessing I have to remove the grey filler/sealing plug from my actuator in the top picture, to reveal the spade connectors as in the bottom picture?

Any advice appreciated, Tremulous Tetra. :-)

[Burgerman]

Yes.

[funkykeyboard]

Is this dongle

compatible with this software?


Because the software and the dongle is not presently reading wheelchair.

Secondly, I used the USB cable out of my printer to connect the dongle from my PC. Could this be the problem?

Any advice appreciated, Tremulous Tetra. :-)

[Burgerman]

Yes it is.

It should work fine - will need to be connected to a chair between joystick and power module, and the chair turned on...

[funkykeyboard]

Well I have used this dongle in the past to program my attempt at copying your wheelchair. I've also plugged into this one I think. But I'm getting nowhere at present.

I have tried two different USB cables. I have tried it on both wheelchairs. No joy.

https://youtu.be/7801D1foi_A

Any advice appreciated, Tremulous Tetra. :-)

[Burgerman]

OK.

Connect it INLINE between joystick and the original cable.
Then connect the USB cable.
Then check it is installed correctly in device manager and if not then you need a few windows basic skills. And install the USB dongle driver.

Tell device manager to show hidden devices. Delete ALL the greyed out devices and reboot. Delete the dongle serial/usb thingly too.

Now turn on wheelchair, open software, plug in the USB.

[tutatu]

Well I have used this dongle in the past to program my attempt at copying your wheelchair. I've also plugged into this one I think. But I'm getting nowhere at present.

I have tried two different USB cables. I have tried it on both wheelchairs. No joy.

https://youtu.be/7801D1foi_A

Any advice appreciated, Tremulous Tetra. :-)

I'm thinking, why don't you order 5$ bluetooth or wifi relay switch and empty bag from the app in one click or by the voice command via google assistant? You can power it via joystick's charging port from the chair if you don't want to mess with the batteries and cables

[woodygb]

It's a German video but should help with the connection process.
Start at 2.24 mins in ....


youtu.be/Xi-S04Z_g2Y

[funkykeyboard]

Can anybody suggest where me going wrong?

When I press the joystick forward to operate the solenoid, it only delivers a short burst of electricity to the solenoid allowing a few drops to drain from the solenoid (see video).

https://youtu.be/sW3-SLmQueA

Any advice appreciated, Tremulous Tetra. :-)

[snaker]

A solenoid valve only allows a tiny flow, just a few drops per minute. You need a day to empty your bag.

Why not try a tiny 24V diaphragm pump as BM recommended. It is small, light and quiet. Importantly, it works!

I empty a 500ml bag in 30s. In real use, it never exceeds 15s.
https://youtu.be/jr1KOUZOvFo

[daunjan]

Have you seen this one https://www.freedom-flow.com/
https://youtu.be/aCEuEUj4hWc

Just spotted this after above post

[woodygb]

Have you seen this one https://www.freedom-flow.com/
https://youtu.be/aCEuEUj4hWc

Just spotted this after above post

Just spotted the price............

Freedom Flow™

$399.00 + postage + extras

Snaker's solution is by far the best and cheapest option.

Combine it with this ... https://www.amazon.co.uk/eMylo%C2%AE-Ch ... 3K7T23A1... and you have remote control.

[Irving]

A solenoid valve only allows a tiny flow, just a few drops per minute. You need a day to empty your bag.

Why not try a tiny 24V diaphragm pump as BM recommended. It is small, light and quiet. Importantly, it works!

I empty a 500ml bag in 30s. In real use, it never exceeds 15s.
https://youtu.be/jr1KOUZOvFo

Snaker is right, that 2.3mm bore will give a flow rate of less than 0.1 litres/min (i.e. 8min to empty a typical bag) assuming you could get the flow started (about 5Bar pressure needed - might do some damage to bag and/or bladder!). You need approx 8mm bore to empty the bag by gravity in around 30sec.

A pump is the way to go, though I'd have some concerns about how well it seals when not powered on.

[Burgerman]

Its a diaphram pump. No flow without power. 2 valves in the way.

[woodygb]

A solenoid valve only allows a tiny flow, just a few drops per minute. You need a day to empty your bag.

Why not try a tiny 24V diaphragm pump as BM recommended. It is small, light and quiet. Importantly, it works!

I empty a 500ml bag in 30s. In real use, it never exceeds 15s.
https://youtu.be/jr1KOUZOvFo

Snaker is right, that 2.3mm bore will give a flow rate of less than 0.1 litres/min (i.e. 8min to empty a typical bag) assuming you could get the flow started (about 5Bar pressure needed - might do some damage to bag and/or bladder!). You need approx 8mm bore to empty the bag by gravity in around 30sec.

A pump is the way to go, though I'd have some concerns about how well it seals when not powered on.

Snaker has been using his $4 ebay pump for 2 years without any issues.

Similar cheap ebay pump.
https://www.ebay.co.uk/itm/24V-DC-Micro ... SwM4Rc-SFZ