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Old 03-08-2017, 02:39 PM
MathisLaurant MathisLaurant is offline
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Question 500A vs 600A Kelly controller.

I am trying to decided between these controllers to run with the DLC-28 motor I am getting second hand. The controllers are:

KLS96501-8080IPS,24V-96V,500A,Sinusoidal BLDC Motor Controller

KLS96601-8080IPS,24V-96V,600A,Sinusoidal BLDC Motor Controller

I am running a 91.2 volt nominal.
the motor peak is 480 Amps AC for 1 minute (660 Amps DC into the motor control)

My question is:
how do I decide between the 500A and 600A max controller current? Is my limiting factor the max battery discharge or the max motor current draw? Is there a calculation(s) I should be doing to correctly size the controller for this build? My assumption is that it is the max Battery discharge.
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Old 03-08-2017, 03:46 PM
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onegreenev onegreenev is offline
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Default Re: 500A vs 600A Kelly controller.

With a Kelly, go for the highest rated amperage you can. Your limiting factor is both battery dischrge and limitations of the controller.
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Old 03-09-2017, 08:53 AM
dain254 dain254 is offline
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Default Re: 500A vs 600A Kelly controller.

Quote:
Originally Posted by onegreenev View Post
With a Kelly, go for the highest rated amperage you can. Your limiting factor is both battery dischrge and limitations of the controller.
Completely agreed - I've been running a 96601-8080 and does more like 450-500A.
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Old 03-09-2017, 09:17 AM
MathisLaurant MathisLaurant is offline
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Default Re: 500A vs 600A Kelly controller.

Quote:
Originally Posted by dain254 View Post
Completely agreed - I've been running a 96601-8080 and does more like 450-500A.
oh really? that's not great... the one reason i am leaning to Kelly is that the controller software is free.
for a brushless motor like the DLC-28, what controllers would to recommend?
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Old 03-09-2017, 09:23 AM
dain254 dain254 is offline
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Default Re: 500A vs 600A Kelly controller.

I've only got experience with the Kelly, so I wouldn't be able to recommend one for you- just sharing what I've experienced! It does work fine so long as you keep it cool, and is easy to program!
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Old 03-20-2017, 04:31 PM
cmcnall cmcnall is offline
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Default Re: 500A vs 600A Kelly controller.

i have the 600A version and although they state you can change the firmware for current ramp etc they limit in firmware the acutal rate to something rather tame. I can pull 600A but cannot do wheelies. But it is a good stable controller with regen and i am not worried about burning it up.
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Old 03-20-2017, 06:48 PM
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Default Re: 500A vs 600A Kelly controller.

I'm also planning on using a DLC28 in an upcoming project. Due to the difficulty in programming a Sevcon, I too was looking at the Kelly 8080IPS controllers, and have been keeping an eye on this thread. However, the following is concerning;

Quote:
Originally Posted by cmcnall View Post
I can pull 600A but cannot do wheelies.
I've read other references regarding the lack of initial torque from Kelly controllers. Do they really fail to deliver "off the line" power? I'm planning on using the DLC28 in an electric dirtbike conversion, so immediate power delivery will be important. Any recommendations for alternatives to Kelly or Sevcon?
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