GoldenMotor.com Forum

Hello
I'm new to this forum and seek for help with RS485 communication.
I want to read both the Controller and the Motor temperatures via RS485.
I could not yet find any documentation on the RS485 but only for CAN communication. Can anybody help with the related frames / registers to request/read?

The Controller series I use is the EZkontrol series.

Thanks
Torsten

following, as I have the exact same issue, although I my case rhe motor is installed in a boat.

I am using the 3kw version of your motor which I purchased with a Kelly controller and a 'wig wag' throttle.  This worked for about 2 weeks then the controller turned into a brick and the throttle fell to bits.  I had to go over to a Sevcon controller and work through throttle issues.  I finally settled on a Curtis PB6 linked up to a boat mechanical throttle via a cable.

I cannot help with you controller settings but can tell you the issues I had with mine; Firstly I needed to set the voltage band (max and min) the controller expected to see and then a dead point (voltage range within the band) that corresponded to motor off.  The 'wig wag' function also needs to be set.  This all sounds really simple but in practice it took a lot of testing and adjusting. 

Another thing, do you have the controller set for rpm based speed control?  If it is set for torque based speed control you will have no speed control until the motor is under load!

That's very interesting, considering I was told very specifically by Daryl at Golden Motor that the Magic Pie 5 could not be operated on an EGO battery.  He literally called me and told me Zar was wrong, these batteries would not work with their product. 

He also claimed to be the owner of the company and told me he would credit my card as soon as the return label he provided was trackable.  I'm certain I am dealing with someone  in the company (I initiated the emails and calls), but obviously things are not as they seem.  I'll investigate further!

Golden Motor has now responded, and told me that in spite of their prior guarantee - which I based this whole build on - their Magic Pie 5 will NOT work on 14s batteries.

The Magic Pie 5 will definitely run on a 14S pack without any problem as the maximum voltage is well below 63V. Even the earlier Magic Pie controllers (which were limited to 60V max) would run happily on a 14S battery pack that was charged to 58.8V.
My GM rack mount battery pack contains 16 LiFePO₄ cells which are charged to 3.65V per cell (58.4V for the pack) and has been used for testing at least eight different versions of Magic Pies & Smart Pies:



I have run Magic Pies on fully charged 14S LiPo packs for many years without any problems, and back in December 2014 I even ran a Magic Pie 4 on a 15S LiPo pack with a voltage of 62.53V to confirm that it would work, so your 57.7V battery should have worked.

As your MP5 did not even work with a 47.5V battery there must be something wrong with the controller or wiring/throttle etc. as it is should have definitely run on this voltage.

Why would Golden Motor sell 52V batteries (which have exactly the same fully charged voltage as your EGO 56V battery) if the voltage was too high for their controllers?

If your motor kit was in good working order upon arrival (and the controller and wiring etc. has not been damaged during installation) then it should work fine with your EGO56V battery pack.

Alan