Rnet oem Dongle

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Re: Rnet oem Dongle

Postby rover220 » 04 Aug 2019, 08:49

still have one oem dongle kit available.
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Re: Rnet oem Dongle

Postby Rastaman92 » 13 Aug 2019, 09:06

hi guys i need to buy a r-net oem programmer at a good price. i live in italy also used okay. why we play at weelchair hockey in italy and we use the sport 3 turbotwists with r-net control unit
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Re: Rnet oem Dongle

Postby Burgerman » 13 Aug 2019, 10:21

See pm. And Rover above, has one for sale.
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Re: Rnet oem Dongle

Postby rover220 » 13 Aug 2019, 16:28

sorry, all gone again for now
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Re: Rnet oem Dongle

Postby Thndrwhls » 15 Aug 2019, 15:44

This question/questions may be answered somewhere within this forum, and I think I know the answer to my first question. But couldn't find anything definitive when I searched.

Can R-net controllers handle 36 volts if I had a OEM dongle to program it with? I ask because I have a Permobil M300 that I want to build a lithium battery for and if it will go 36v why not!

And what are the most powerful motors that can be acquired, i'm building a strictly off road chair so want the best motors for the job, this will also be 48v or more and use the Robotek controller.

Thanks in advance!
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Re: Rnet oem Dongle

Postby Burgerman » 15 Aug 2019, 19:34

Can R-net controllers handle 36 volts if I had a OEM dongle to program it with? I ask because I have a Permobil M300 that I want to build a lithium battery for and if it will go 36v why not!

No. Its designed for 24V lead, or up to 29.6V when charging, with a typical 32V limit before you get errors. The ACTUAL short term max voltage is coused be gegenerative spikes up to around 32V and so the controller has a 32 to 35V extreme limit. Best to use 8S LiFePO4.

And what are the most powerful motors that can be acquired, i'm building a strictly off road chair so want the best motors for the job, this will also be 48v or more and use the Robotek controller.


Whats you definition of power?
Watts determine what the motor can safely HANDLE CONTINUOUSLY. They do NOT tell you how powerful a motor is regarding torque.

Its like this. Provided the motor can pull more Amps than the Roboteq can provide, then ALL motors will give the exact same torque at the output shaft at the same max speed rating. So if 2 different motors run at 6mph, and both are limited to x Amps by the roboteq then as long as both are equally efficient (most are quite similar) then both will produce the same amount of stall torque. And the same speed. Motor watts doesent enter into this.

That is unless you exceed the average watts rating and melt something. So higher watts will protect against this. Its really just a measure of how fast it can cool... So. does that help?

Doubling the volts means that you go twice as fast. Torque remains the same.
Unless you change the GEARING and half it. So now it goes at double the MOTOR speed but the same road speed, but has double the torque. With the same motor, and the same current limit.

Does that help?

On the motor VOLTS = RPM. and AMPS = TORQUE.
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Re: Rnet oem Dongle

Postby Thndrwhls » 15 Aug 2019, 20:56

Burgerman wrote:
Can R-net controllers handle 36 volts if I had a OEM dongle to program it with? I ask because I have a Permobil M300 that I want to build a lithium battery for and if it will go 36v why not!

No. Its designed for 24V lead, or up to 29.6V when charging, with a typical 32V limit before you get errors. The ACTUAL short term max voltage is coused be gegenerative spikes up to around 32V and so the controller has a 32 to 35V extreme limit. Best to use 8S LiFePO4.

And what are the most powerful motors that can be acquired, i'm building a strictly off road chair so want the best motors for the job, this will also be 48v or more and use the Robotek controller.


Whats you definition of power?
Watts determine what the motor can safely HANDLE CONTINUOUSLY. They do NOT tell you how powerful a motor is regarding torque.

Its like this. Provided the motor can pull more Amps than the Roboteq can provide, then ALL motors will give the exact same torque at the output shaft at the same max speed rating. So if 2 different motors run at 6mph, and both are limited to x Amps by the roboteq then as long as both are equally efficient (most are quite similar) then both will produce the same amount of stall torque. And the same speed. Motor watts doesent enter into this.

That is unless you exceed the average watts rating and melt something. So higher watts will protect against this. Its really just a measure of how fast it can cool... So. does that help?

Doubling the volts means that you go twice as fast. Torque remains the same.
Unless you change the GEARING and half it. So now it goes at double the MOTOR speed but the same road speed, but has double the torque. With the same motor, and the same current limit.

Does that help?

On the motor VOLTS = RPM. and AMPS = TORQUE.


Thanks for the reply!

So, I'm looking for Torque. But it sounds to me like that is controlled by the gearing and the controller. I have a pair of 4 pole motors from a heavy duty 4mph invacare arrow 3gar base. I had planned on just using those with the 90 amp MK6 controller, but since I have acquired the Permobile M300 I plan on going full off road with it.

I will get a robotek to use and set it up with 48V. I think that it will be just fine with those 4 pole motors and 48v. All I want the extra torque for is primarily the ability to climb a hill, otherwise it will be nice to go faster.

Thanks as always you are an amazing resource for all of us non engineer guys.
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Re: Rnet oem Dongle

Postby Burgerman » 15 Aug 2019, 22:25

So, I'm looking for Torque. But it sounds to me like that is controlled by the gearing and the controller.


Gearing, max controller Amps, and SPEED. A 4mph 4 pole motor, will have 50% more torque than a 4 pole 6mph motor, all else equal. Limited by max amps of the controller.

I have a pair of 4 pole motors from a heavy duty 4mph invacare arrow 3gar base. I had planned on just using those with the 90 amp MK6 controller, but since I have acquired the Permobile M300 I plan on going full off road with it.

The permobil has 2 pole motors. So will have less torque. Its also 7mph. So will have half as much torque (with the same controller A level) as the 4mph HD motors.

I will get a robotek to use and set it up with 48V. I think that it will be just fine with those 4 pole motors and 48v. All I want the extra torque for is primarily the ability to climb a hill, otherwise it will be nice to go faster.

Extra volts double the speed. Your HD 4mph motors will have the same torque as before, at the same Amps. But the roboteq offers more Amps. But will do 8mph. Best of both worlds. Beware of mechanical gearbox failure. At higher Amps off road. Also be sure to fully understand quite how complex the roboteq is. Read the long thread pinned at the top of the forum.
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Re: Rnet oem Dongle

Postby swalker » 16 Aug 2019, 00:35

From the spec sheet, the Permobil F5 uses 4 pole motors (at least in the US spec sheet):

http://www.permobil.com/en/Export/C/Products/F5/

Steve
Permobil F5 Corpus 3G
Permobil C500s VS
Permobil C500 Corpus 3G
Permobil C350 Corpus 3G
Magic Mobility X4 with 176 Ah LiFePO4
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Re: Rnet oem Dongle

Postby Burgerman » 16 Aug 2019, 01:32

So it does. Maybe just the older and F3 then. But still, the 4 pole 4mph motors will have almost double the torque as speeds move away from stall. If they are the same linix motors as I think, the 2 poles are a little longer and so offer around 75% of the 4 poles torque. But are not really capable of taking the 120A that the r-net can give. So if the 2 poles fitted to the slower f3 are used with the 120 r-net I susspect the PM will be set to a lower limit. or short boost time etc. (If you have the 120A version).

But they are 7.5mph. So will have a little over half the torque as the 4 pole 4mph HD ones.

This makes me laugh!
Unlimited control
R-net, our most advanced control system, in combination with Intelligent Control System (ICS) raises driving performance, safety and coordination of functions to a whole new dimension. From the start R-net/ICS has been designed to control and monitor a variety of functions and information. The system has wide expansion capability and almost unlimited potential. R-net/ICS uses advanced technology to link the user's needs and intentions with the chair's performance and capabilities. All electrical seat functions can be coordinated with the chair's driving characteristics and programmed to suit individual needs.


High resolution graphics and large screen icons ensure ease of use and availability. Driving and controlling the chair and its functions are now even simpler and more natural. R-net/ICS is also the safest and most reliable control system we have developed. Naturally it can be adapted to suit all forms of advanced disability aids.

Features
• High expandability and capacity for handling advanced multiple functions
• Improved driving precision
• Clear display with high-resolution graphics
• Large, clear screen icons
• Extensive programmability for adaptation and integration of electrical functions, memory modes, favourite positions etc.
• Facility for numerous advanced combinations of seat functions and mobility
• Useable on all new Permobil models
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Re: Rnet oem Dongle

Postby steves1977uk » 16 Aug 2019, 09:06

Curtiss-Wright would have something to say about Permobil's advertising BM! :problem:

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