Wanting to power a lead screw

[mrbreezeet1]

I don't know?
They all said these KBIC 120 controllers were good.
I am not sure what the amps of the board is.

What about this Auto Inhibit" function I have been reading about?
Did anyone have to do anything with that.

 

[JimDawson]

I'm going to go with what caveBob said. Makes sense to me. As I have said before, I'm not really up to speed on the treadmill motors and controllers.

 

[mrbreezeet1]

I will go with the 1 HP resistor then.

 

[mrbreezeet1]

In this video
https://www.youtube.com/watch?v=xdO2dZuBObI
I think he says you should remove power to the A/C hot line before changing direction of the motor.
Is that what he is saying?
I thought the center position of the DPDT switch was off, and as long as the motor was not turning,
it could not produce "backwash" current into the board.

 

[caveBob]

Had a hard time understanding him at that point... think he said "inhibit switch". The KBMD-240 has a Forward/Brake/Reverse switch that does what I think he may be talking about. What it does is to momentarily lock at center (Brake) from Forward or Reverse, keeping you from going directly from one direction to the other... immediately. You're supposed to let the motor wind down to full stop, then change rotation direction. I think...

Don't know if you have the PDF docs for your drive(s) yet, on this page - http://www.kbelectronics.com/Variable_Speed_DC_Drives/DC_Drives_Chassis.html it says:

Options: Auxiliary Heat Sink (P/N 9861), Barrier Terminal Kit (P/N 9863) Barrier Terminal Board (P/N 9884), SI-5 Signal Isolator (P/N 9443), Combination Fuse kit (P/N 9849). AC line and Armature fuse supplied separately.

*An Auxiliary Heat Sink is required when operating motors above ½ HP at 90VDC and 1 HP at 180VDC.

I forgot to mention that earlier... if going above 3/4 HP you need the auxiliary heat sink. Found a couple places real quick:

9861 Auxiliary Heatsink 7" @ Amazon - $30.20 & FREE Shipping
http://www.amazon.com/KB-Electronics-9861-Auxiliary-Heatsink/dp/B007YA3722

KB Electronics auxiliary heatsink 9861 for KBIC, KBMD, KBMG, and KBMM controls @ eBay - $30.10
http://www.ebay.com/itm/KB-Electron...BIC-KBMD-KBMG-and-KBMM-controls-/221417612142

For more info, I got lots of good hits at google using the search phrase "KBIC 120 treadmill motor forum"

and...

Data Sheet
http://www.kbelectronics.com/data_sheets/kbic.pdf

Manual
http://www.kbelectronics.com/manuals/kbic_manual.pdf

 

[mrbreezeet1]

I asked at you tube,
[h=2]Stream[/h][h=3]anthony diodati[/h]2 hours ago

Are you saying I need to turn off the power to the AC hot line before switching direction, or just let the motor come to a stop. I will be using a DPDT switch in my motor wires to reverse direction.




Reply
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xynudu1 hour ago



+anthony diodati Let the motor come to a stop is OK. Just so long as the armature is not generating any DC (backwash) when you make the direction change. You also can turn off the power before switch change. Either way, the armature must be stationary at the change point. Rob


Reply








So I guess just letting the motor stop is OK.
I have heard of those switches, that you must pause, That would be nice.

 

[mrbreezeet1]

Well, for $28.43 I got this one, was said to be an "open box"
Sold by Amazon.
Normally it is a $150.00 motor.
Should be OK, of course I do still have the TM motor too.
Maybe use it on something else.

http://www.amazon.com/gp/product/B00KA2R7TA/ref=od_aui_detailpages00?ie=UTF8&psc=1

 

[caveBob]

HOW on earth did you you score that motor for only $28.43? That's crazy awesome scratchin-the-head-how'd-ya-do-that good!

Can't wait to see how it runs...

 

[mrbreezeet1]

HOW on earth did you you score that motor for only ? That's crazy awesome scratchin-the-head-how'd-ya-do-that good!

Can't wait to see how it runs...

I don't know, it was just on there, under "1 used from $28.43" Actually it was about a dollar more, and the price was reduced while it was in my cart.
So I had to add a few more odds and ends to get it up to $35.00.
http://www.filleritem.com/

 

[mrbreezeet1]

I don't have it all hooked up yet, but with my 1/2 nut engaged, i can turn the lead screw about 1/4 turn before the carriage moves.
Is this normal?

I have only threaded a few times, but it seemed to thread OK?