Dimensions of Cellman's 30A controller

[alfantastic]

Has anyone got the dimensions of Cellman's 30A controller, that he is selling at the moment, please.

[neptronix]

It would be important to know how many FETs the controller has.. that determines it's length, and over 18FET, it's width and length.

[alfantastic]

It says 9 FET on his website and an estimate of size would be ok, but I'd rather someone who owns this particular controller to actually measure the casing.

[neptronix]

I own 2 of those particular controllers. Same size as lyen. same case..

5in long, 3.25in wide, 1.75in tall.

[alfantastic]

Thank you neptronix. Well happy
Do they need to be well vented, or are they ok in a thin bag?

[neptronix]

Thank you neptronix. Well happy
Do they need to be well vented, or are they ok in a thin bag?

Depends entirely on what amperage you are going to run constant.
I can get away with it stuck in a bag set to 36A, but my motor only draws 15-20A constant and when i am pedaling along, that amp figure is even lower

What motor / voltage / wheel size you going to run?

[veloman]

Thank you neptronix. Well happy
Do they need to be well vented, or are they ok in a thin bag?

It also really depends on your motor. My high speed 6 turn Mac makes the controller work considerably harder at lower speeds.

Personally, I would never cover a controller on anything that has decent power and is above 50 degrees F outside.

[alfantastic]

Thanks for all the helpful replies. I'll stick with mounting the controller uncovered, for peace of mind

[alfantastic]

Do Cellman's controllers have on/off switches on the casing?

[neptronix]

just like other infineons, they do not. You'll have to add that yourself.

[alfantastic]

The reason I asked is that I was perusing the net and found this:

http://www.ebikes.ca/store/store_controllers.php

I originally thought that Infineon made the actual controllers, but I guess they only supply the chipset.

[alfantastic]

Would the ebikes.ca controller, shown in the above link, be compatible with one of Cellman's rear 500w MAC motors.
I.e. would the connectors be plug and play for throttle, brakes, hall and motor, apart from the battery supply?

[neptronix]

Probably not.
You really want a cell_man controller for best operation on the BMC or MAC motors.
They are modified to have good throttle response, no instant torque slam, etc.

I tried pretty much every controller i could get my hands on, and when cell_man came out with his most recent ones, the MAC i have was finally smooth and wouldn't stutter on partial throttle.

Not hard to add an on/off switch anyway.

[alfantastic]

Thanks neptronix, it sounds like you have a lot of experience with Cellman's products.
Rather than load questions on to Paul, as I hear he is a busy man, I hope you would be able to answer some further questions.

If I bought his Mac 500W Rear Kit (torque), then would all the connectors for throttle, brakes, hall and motor be plug and play?
I realise that I would need to incorporate my own battery terminations.

Also, can you confirm that the only thing I would need to do on a rim brake set-up, is take the 7-speed Shimano freewheel from my existing bike and fit it to the axle?
All washers and little anti-rotation washer thingys are included?

[alfantastic]

Back to the question of controller heat dissipation.
I'll be running a 30A Cellman controller averaging 15A constant, with max 30A peaks for around 1 minute, then back to 15A for a cooldown.
It will be in a nylon bag with little ventilation, but have around 1 inch spacing around the casing.
Is this a recipe for controller failure/shutdown, or are they fairly heat abuse tolerant?
Would the controller casing get hot enough to melt the bag if it touched it?

[neptronix]

Lol, well i ran my 4110 9FET at 36A, 15-25A constant inside a topeak bag & a falconEV bag for a long time and never got it to blow up, sometimes even ran it harder than that. I think you'll be ok

You're gonna run the 10T... well, that is not a very amp hungry motor. If you're gonna run it on a 26" wheel at 36v, it will barely get the controller warm-hot unless you are climbing mountains for miles. Then it may get sorta hot.

But if you up the voltage, you'll be running more amps continuous... so..
How many volts you gonna run? what's your target speed?

[alfantastic]

I'll be running a 48v 15Ah Ping, most likely flat out at 25mph on relatively flat ground.
A couple of biggy hills, but will provide bags of human effort on these.
The Ping is being custom split and fits nicely into a FalconEV frame bag.
This will leave a space at the front end for the controller.
The bag has a fabricated opening in the front, so maybe this will provide a little forced air induction to keep the controller temp down.
Attaching a Cycle Analyst, so could turn the current flow down a little if things get too warm, but seems a bit daft fitting a 30A controller if I aint gonna use them mules

[neptronix]

I'll be running a 48v 15Ah Ping, most likely flat out at 25mph on relatively flat ground.
A couple of biggy hills, but will provide bags of human effort on these.
The Ping is being custom split and fits nicely into a FalconEV frame bag.
This will leave a space at the front end for the controller.
The bag has a fabricated opening in the front, so maybe this will provide a little forced air induction to keep the controller temp down.
Attaching a Cycle Analyst, so could turn the current flow down a little if things get too warm, but seems a bit daft fitting a 30A controller if I aint gonna use them mules

The front slat of the falconEV bag doesn't really take in any air. You'll want to crack the front of the bag open a little ( it has 2 zippers, so no prob. )

One option is to get the 3xxx FET 9FET controller which is only capable of a max voltage of about 60v.. it produces a lower amount of heat & is a bit more efficient than the 4110 FET controllers ( capable of up to about 90v ). You'll need to crack the front of the bag open to give it a little cooling in the summer, or during extended length rides. Run it at a maximum of 25A, and it will be pretty easy on the ping battery, and should have a really great thermal headroom .

Get a programming cable and header with the controller and tune it down a bit. cell_man's controllers tend to have a little more juice than expected in my experience.