Great tutorial!!! I have the same controller 7218 with mxus 3k (20s, 5t, 19" moto). For now everything works, but two things I do not understand. First: I have hall throttle. And TPS type is set on 1. And it works fine. How? However it works on 2 as well. Confusing. Second; I have set Current Percent to 100% and Battery Limit to 50%. So, acording to Your explanation, Kelly should draw 40A from battery (half of 80A rated continuos). But my current clamp meter shows that kelly draws 100A from battery when accelerating full. I did not try to set Battery Limit to 100% to see if kelly would draw 200 amps because my clamp meter can not show that much. Although in user manual for 7218 it is written that kelly can pull 200 amps for 20 seconds. So I'm thinking that Battery Limit is not percentage of 80A continuous rating but percentage of 200A max rating. At least for that 20 seconds. But 20 seconds on 200A would launch you to max speed on 10% uphill with seconds to spare:) Any thoughts on that?
Hello @berislavtopol1404 and thank you. A resistive throttle and hall sensor throttle at the end give out a very similar signal; an approx. 0V to 5V signal. That is why it works. But better use parameter "2" instead of the "1" About the current adjustments: "Battery Limit" refers to current that comes in the controller. But it is not as precise as we will like you have to play a little with the percentages until you get what you want. "Current percent" refers to the current that goes out of the controller to the motor, that is AC current.
@@smelker You can only modify the top speed for each "speed gear" at the parameters, but actually I noticed a slightly different behavior of the motor at each speed, like having less acceleration at low speed and higher acceleration at high speed. So it is possible that the software has some internal setup that changes power as well. (I am not fully sure about this) Anyway if you limit the top speed you will be always using less current in general operation.
"Internal Reset" can be caused by a current peek or for momentary too high voltage or too low voltage. But if the issue is just momentary the controller will restart after the issue.
@@gonzalop.chomon327 it does restart 🤔 I just see it as a problem going up hill from a dead stop. 🤷🏻♂️ might hinder some off road performance. Might charge my battery, see if the problem goes away.
@@FuttBucker42069 If it happens going uphill from a dead stop, the most probably causes are a current peak OR a low voltage due to high current demand.
Hi @ubcnme1 while at the manual says you need a 12V signal to activate the 3 speed functions. While at the manual says it needs a 12V signal. It actually does not work. And it has been reported that using ground signal to activate them does work.
@gonzalop.chomon327 Hi I actually got the 3 speed function to work. I installed a 3 way toggle switch. I got 12 Volts from pin 11. And in the app I changed the setting to #2 for 3 speed and it works like a charm. I have Eco, medium, and full power.
So I have a 75 Volt 40Ah 18S lithium pack and a 2.500 watt motor. I have the Kls-S Kelly. I don't want any regenerative breaking, so everything is 0 at the RLS BRK% etc. But do I need to fill in 0 at Brake type? Also: what are good set ups for Battery Limit and Current percent? Because now, when the motor goes less than 5 mph, regenerative breaking sets in.
Hi Olaf, "Brake type" parameter is for defining the kind of brake throttle that you are using if you are using any. Maybe the braking that kicks in at low speed it the "Anti-Slip" function. In order to give you precise parameters I need to know all the info in order to make the calculations.
@@gonzalop.chomon327 Well, first my connection needs to be fixed. I can't read out the Kelly at the moment. I do have some pictures from the last setting.
hello thanks for the video. I just wanna ask you one thing. I used kelly BLDC(not the sinusoidal) 55A controller recently I replaced the controller to sinusoidal 80A controller. and there is a problem. sinusoidal controller have much less starting torque than the normal BLDC controller. I installed it on my mountain bike it cant not even push me on stairs. there was no problem with normal bldc 55a controller. do you have any similar experience?
In some of the trapezoidal Kelly controllers you can change the "Control Mode" Value range: Torque/Balanced/Speed and by default is on Torque mode. Meaning that the throttle will mostly act as a torque regulator. While in the Sinusoidal Kelly controller you do not have that option and it is set up by default at a balanced range. So throttle controls torque and speed on a more reasonable way. Anyway you can modify the starting torque and acceleration changing the PID values as commented in the videos.
Приветствую! Вопрос у меня к вам: как правильно посоветуйте объеденить 2 контроллера kls 7218 на 2 мотора. Провода от ручки газа вместе? Или 5 вольт я беру только с одного? Остальная проводка я так понимаю просто в парралель, датчик тормоза, переключение скоростей и тд... Ворос 2: что за провод RTN (6) и куда его подключить?
For 2 motors setup is better to use only one of the 5V supplies. The pin 6 is a grond (-) usually it is used for the return from the starting relay if you are using one.
@@gonzalop.chomon327 If I don't use a relay, then I don't touch or connect the RTN output, right? to turn on the controller through the ignition switch, I supply the battery voltage to the PWR wire. Thank you for your help. They say it's even better to put a 2kom resistor on the signal output from the gas handle for protection, is it necessary?
@@spiritelektro If you don't use a relay, you don't need to use RTN for a non existing relay 🤣 There is no need of any kind of protection on the throttle signal it is only 5V and very low power. It is good to install a precharge resistor for battery-controller connection. Around 1Kohm to 2Kohm (10W) is ok.
Hello, i have a problem i got KEB controller , and i try to connect it to my pc, every time i connect pc to controller, and open software the program, i recieve a message check pwr and connection cable I don't know where is the problem but if you provide me with the steps for proper connection of controller
Yes, sometimes it is a PIA to connect. Try to connect by Android APP instead of PC APP, it usually has worked better for me. Anyway have in mind that it may be possible that the cable is faulty.
@@gonzalop.chomon327 And another question, how to make 2 kelly keb controllers synchronized with each other? To drive two motors with coordination with each other so the driver can take a turn or some thing like that
Hi @@omniamohamed6392 If the controller gives an error when the throttle signal reaches its top limit, then you will have to increase a little the parameter: "TPS High Err", this parameter indicates the controller where is the top limit signal of the throttle. Avoid if possible to set it at 100% because then you may lose the controller capacity to detect a fault in the throttle.
Hi again@@omniamohamed6392 , That can be very simple or very complicated depending on the use and setup. You can contact me privately so I can create for you the basic configuration or a full fine tuned one. This will have a cost obviously depending on the scope.
You have the schematic for 3 speed switch function at page 13 in this manual: kellycontroller.com/wp-content/uploads/kls-s/KellyKLS-SUserManualV1.10.pdf
Hi, Good ! Excuse me for my english ! I'm French. I have a Kelly KBS 48121X and in the KBS-X program, there isn't this icons : "Vehicule" "Motor" "Read" "Control" "COM" "Write". It's normal ?
You can't use 3 speed switch if you use 3 gear switch?! We have a machine with a 3-gear selector for Forward Neutral and Reverse but also want to select 3 speeds in Forward. Can this not be done? We are using 2 Kelly controllers for two rear Hub motors.
It is not possible to use both functions at the controller programing. But you can always make a F-N-R function outside of the software. A 3 position switch can activate: Forward and Reverse and Neutral can either by blocking with pin15 or deactivate the throttle or activate brakes for example.
@@gonzalop.chomon327 Ah yeah ok, I get what you are saying. It’s for an ATV sized ‘golf cart’ and we have converted the indicator stalk (3 position switch) into Fwd N Rev. This is on a DC Curtis controller. I’m relatively new to brushless DC controllers besides playing around with the off-road scooters we have here. Good to see to reply in the comments. Cheers
Hello friend, I have a KLS7212ST controller It is limited to a speed of 18 km/h I want to unlock unlimited What should I do ? Just change the motor rpm?
@@hdbsmkalavshdhs If you put a value over the maximum rpms that the motor is able to reach it will just run up to that speed, not more. Usually on an Electric Vehicle, it is interesting to limit the max. motor speed in order to have a constant vehicle max. speed regardless of the battery state.
![เจ็บที่ยังฮัก - ม่อน วรวิทย์ [ Official Mv ] จอนนี่มิวสิค](http://i.ytimg.com/vi/KALIGSRSjFs/mqdefault.jpg)
Thanks to the helpers identify error and continuous red light
🤙🤝💪 really nice having some extra knowledge on this subject I've been playing around with a few parameters but this is definitely helpful
Thank you.
Great tutorial!!!
I have the same controller 7218 with mxus 3k (20s, 5t, 19" moto). For now everything works, but two things I do not understand.
First: I have hall throttle. And TPS type is set on 1. And it works fine. How? However it works on 2 as well. Confusing.
Second; I have set Current Percent to 100% and Battery Limit to 50%. So, acording to Your explanation, Kelly should draw 40A from battery (half of 80A rated continuos). But my current clamp meter shows that kelly draws 100A from battery when accelerating full. I did not try to set Battery Limit to 100% to see if kelly would draw 200 amps because my clamp meter can not show that much. Although in user manual for 7218 it is written that kelly can pull 200 amps for 20 seconds. So I'm thinking that Battery Limit is not percentage of 80A continuous rating but percentage of 200A max rating. At least for that 20 seconds. But 20 seconds on 200A would launch you to max speed on 10% uphill with seconds to spare:) Any thoughts on that?
Hello @berislavtopol1404 and thank you.
A resistive throttle and hall sensor throttle at the end give out a very similar signal; an approx. 0V to 5V signal.
That is why it works. But better use parameter "2" instead of the "1"
About the current adjustments:
"Battery Limit" refers to current that comes in the controller. But it is not as precise as we will like you have to play a little with the percentages until you get what you want.
"Current percent" refers to the current that goes out of the controller to the motor, that is AC current.
Maybe it's just me but it would be nice to have the 3 power levels and the possibility to have a neutral option.
Yes it has the option of 3 speeds/power, Neutral and Reverse and others to choose from.
Really nice tutorial! Can you only set motor speed on the 3 posistion switch? Can you set diffrent power, like less watts on a lower gear?
You can configure the controller for 1, 2 or 3 different speeds, "gears" that they can be selectable by a switch.
@@gonzalop.chomon327 So the power is the same in all gears. Only set difftent max speed of the motor?
@@smelker You can only modify the top speed for each "speed gear" at the parameters, but actually I noticed a slightly different behavior of the motor at each speed, like having less acceleration at low speed and higher acceleration at high speed.
So it is possible that the software has some internal setup that changes power as well. (I am not fully sure about this)
Anyway if you limit the top speed you will be always using less current in general operation.
@@gonzalop.chomon327 sounds good! Thank you!!
Really informative video thank you 🙏🏻
By any chance you wouldn’t know what Internal Reset fault is caused by, would you?🤔
"Internal Reset" can be caused by a current peek or for momentary too high voltage or too low voltage. But if the issue is just momentary the controller will restart after the issue.
@@gonzalop.chomon327 it does restart 🤔 I just see it as a problem going up hill from a dead stop. 🤷🏻♂️ might hinder some off road performance. Might charge my battery, see if the problem goes away.
@@FuttBucker42069 If it happens going uphill from a dead stop, the most probably causes are a current peak OR a low voltage due to high current demand.
@@gonzalop.chomon327 I kept decreasing battery current value, and cut outs became a rare occurrence.
@@FuttBucker42069 Best solution is bigger battery ;)
Hello to utalized the 3 speed function must it have a ground input or a 12 volt input. I want to use it in my eBike. Which i have a Kelly controller.
Hi @ubcnme1 while at the manual says you need a 12V signal to activate the 3 speed functions. While at the manual says it needs a 12V signal. It actually does not work.
And it has been reported that using ground signal to activate them does work.
@gonzalop.chomon327 Hi I actually got the 3 speed function to work. I installed a 3 way toggle switch. I got 12 Volts from pin 11. And in the app I changed the setting to #2 for 3 speed and it works like a charm. I have Eco, medium, and full power.
@@ubcnme1 Nice to hear :)
@@ubcnme1 Nice to hear :)
So I have a 75 Volt 40Ah 18S lithium pack and a 2.500 watt motor. I have the Kls-S Kelly. I don't want any regenerative breaking, so everything is 0 at the RLS BRK% etc. But do I need to fill in 0 at Brake type? Also: what are good set ups for Battery Limit and Current percent? Because now, when the motor goes less than 5 mph, regenerative breaking sets in.
Hi Olaf,
"Brake type" parameter is for defining the kind of brake throttle that you are using if you are using any.
Maybe the braking that kicks in at low speed it the "Anti-Slip" function.
In order to give you precise parameters I need to know all the info in order to make the calculations.
@@gonzalop.chomon327 Well, first my connection needs to be fixed. I can't read out the Kelly at the moment. I do have some pictures from the last setting.
@@olafbiesot777 What you mean with "your first connection"?
@@gonzalop.chomon327 The blue wire has been broken. I cannot read out at the moment.
@@olafbiesot777 Well, then is an easy repair :)
hello thanks for the video.
I just wanna ask you one thing. I used kelly BLDC(not the sinusoidal) 55A controller
recently I replaced the controller to sinusoidal 80A controller.
and there is a problem. sinusoidal controller have much less starting torque than the normal BLDC controller.
I installed it on my mountain bike it cant not even push me on stairs.
there was no problem with normal bldc 55a controller.
do you have any similar experience?
Im deciding between the Kelly 100/350amp sinusodial or the trapezodial model. Im not sure which one to buy.
In some of the trapezoidal Kelly controllers you can change the "Control Mode" Value range: Torque/Balanced/Speed and by default is on Torque mode. Meaning that the throttle will mostly act as a torque regulator.
While in the Sinusoidal Kelly controller you do not have that option and it is set up by default at a balanced range. So throttle controls torque and speed on a more reasonable way.
Anyway you can modify the starting torque and acceleration changing the PID values as commented in the videos.
@@tooshmart6669 Both are good, the Sinusoidal ones are a bit more efficient.
Приветствую! Вопрос у меня к вам: как правильно посоветуйте объеденить 2 контроллера kls 7218 на 2 мотора. Провода от ручки газа вместе? Или 5 вольт я беру только с одного? Остальная проводка я так понимаю просто в парралель, датчик тормоза, переключение скоростей и тд... Ворос 2: что за провод RTN (6) и куда его подключить?
For 2 motors setup is better to use only one of the 5V supplies.
The pin 6 is a grond (-) usually it is used for the return from the starting relay if you are using one.
@@gonzalop.chomon327 If I don't use a relay, then I don't touch or connect the RTN output, right? to turn on the controller through the ignition switch, I supply the battery voltage to the PWR wire. Thank you for your help. They say it's even better to put a 2kom resistor on the signal output from the gas handle for protection, is it necessary?
@@spiritelektro If you don't use a relay, you don't need to use RTN for a non existing relay 🤣
There is no need of any kind of protection on the throttle signal it is only 5V and very low power.
It is good to install a precharge resistor for battery-controller connection. Around 1Kohm to 2Kohm (10W) is ok.
Hello, i have a problem i got KEB controller , and i try to connect it to my pc, every time i connect pc to controller, and open software the program, i recieve a message check pwr and connection cable
I don't know where is the problem but if you provide me with the steps for proper connection of controller
Yes, sometimes it is a PIA to connect. Try to connect by Android APP instead of PC APP, it usually has worked better for me.
Anyway have in mind that it may be possible that the cable is faulty.
@@gonzalop.chomon327
Hello, i ask about throttle error that appear when throttle reach its path end , the motor is stoped by controller
@@gonzalop.chomon327
And another question, how to make 2 kelly keb controllers synchronized with each other? To drive two motors with coordination with each other so the driver can take a turn or some thing like that
Hi @@omniamohamed6392 If the controller gives an error when the throttle signal reaches its top limit, then you will have to increase a little the parameter: "TPS High Err", this parameter indicates the controller where is the top limit signal of the throttle. Avoid if possible to set it at 100% because then you may lose the controller capacity to detect a fault in the throttle.
Hi again@@omniamohamed6392 ,
That can be very simple or very complicated depending on the use and setup.
You can contact me privately so I can create for you the basic configuration or a full fine tuned one. This will have a cost obviously depending on the scope.
Hello there, are there any instructions to ow you connect the three Speed switch, i can´t find any information for tis in the Manual for my KLS7212S
You have the schematic for 3 speed switch function at page 13 in this manual:
kellycontroller.com/wp-content/uploads/kls-s/KellyKLS-SUserManualV1.10.pdf
thanks for the informations
Good 👍
Thank you 😀
Hi, Good !
Excuse me for my english ! I'm French.
I have a Kelly KBS 48121X and in the KBS-X program, there isn't this icons : "Vehicule" "Motor" "Read" "Control" "COM" "Write". It's normal ?
The KBS controller is different from this ones (KLS)
KBS uses old software version. Anyway most parameters are similar to the new software version.
@@gonzalop.chomon327 👍🙂
You can't use 3 speed switch if you use 3 gear switch?! We have a machine with a 3-gear selector for Forward Neutral and Reverse but also want to select 3 speeds in Forward. Can this not be done? We are using 2 Kelly controllers for two rear Hub motors.
It is not possible to use both functions at the controller programing.
But you can always make a F-N-R function outside of the software. A 3 position switch can activate: Forward and Reverse and Neutral can either by blocking with pin15 or deactivate the throttle or activate brakes for example.
@@gonzalop.chomon327 Ah yeah ok, I get what you are saying. It’s for an ATV sized ‘golf cart’ and we have converted the indicator stalk (3 position switch) into Fwd N Rev. This is on a DC Curtis controller. I’m relatively new to brushless DC controllers besides playing around with the off-road scooters we have here.
Good to see to reply in the comments. Cheers
@@d1o2n4 Glad to help.
Hello friend, I have a KLS7212ST controller
It is limited to a speed of 18 km/h
I want to unlock unlimited
What should I do ?
Just change the motor rpm?
Yes, usually the way to limit the speed with this controller is changing the motor RPMs limitations parameters.
@@gonzalop.chomon327 thanks
I have ezrider if you know
With us in countrie it comes limited
I have 4900 rpm motor what should I set my max speed to
If you want the motor to reach it maximum speed, then set it up over 4900 rpm something like 6000 rpm in the "Max Speed" field will be enough.
@@gonzalop.chomon327 thanks Soo much Gonzalol u have a new subscriber
@@customcarreviews9134 Thank you, you are welcome.
@@hdbsmkalavshdhs If you put a value over the maximum rpms that the motor is able to reach it will just run up to that speed, not more.
Usually on an Electric Vehicle, it is interesting to limit the max. motor speed in order to have a constant vehicle max. speed regardless of the battery state.