I'm not aware of a way to use a display with a Kelly controller.
They have a setup program that you use via serial-USB cable from a computer or tablet/etc to configure it for use with your specific motor/battery/throttle/etc., and it does display certain information from the controller, but it's not a realtime display and can't be used while operating the system. (you can actually brick some of their controllers by trying to).
Even if the kelly would work with a display, displays are specific to certain controllers; there are no universal communications protocols, so even if a display and controller share the same plug, they are more likely to be incompatible than compatible.
Some controllers and some displays even have different firmware versions (which may not be marked anywhere) that make them work only with their specific display/controller combination, and not with other versions of the apparently-same model. (they'll turn on and operate, but the display won't process any data sent to the controller and vice-versa, or it may process some of it but not all, etc).
If you want a controller with a display that can change the controller's settings, and displays data sent from the controller, you should get them as a set (kit) to be sure they are compatible. Otherwise it's up to you to get them to work together, if that's even possible (often it's not).
If the *manufacturer* of the controller does not offer a display option for that specific controller model and version, then you'd want to skip that controller and find one whose manufacturer *does* offer a display for the specific model/version you want to use.
Some controller manufacturers like ASI do offer display options for some of their controllers...but make sure that you are able to also get the complete setup software and cabling for the controller from them, including whatever permanent license they require for that software, so that you can setup the controller correctly for your specific motor, battery, etc., and can make changes whenever you need to do so. If you don't, you may be unable to use the controller, or unable to change settings to use it with future motor/battery/etc upgrades or replacements you have to install later, and then have to buy a whole new controller just because you couldn't change a setting.

Note also that some controllers, like ASI, Sevcon, etc., can be very complex to setup, and not everyone is able to get them working with their stuff without paying for support to do so.
The Cycle Analyst is also not a display for controllers. It is a separate computer that processes various inputs and sensors via the settings you choose, and outputs a throttle signal to your controller. There is no communication from it to or from any controller, however, and it cannot change controller settings, so it does not perform the functions of a display in the sense that the one you have does. It only displays the information that it generates itself, from various sensor inputs.
Also, note that the "feature and adjustment" ability of the display you have is not just the display--it is the controller itself. If the abilities of both don't match, you don't get those features or adjustment abilities.
lifepo4ever42 said:
hi everyone , can I use a kelly controller or other quality controllers with my sw900 display ?
I really love the feature and ajustment of this computer , also I don't want to spend money for a cycle analyst