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Posts posted by J57ltr

  1. The clutch mentioned is only to protect the motor from stalling when the actuator reaches the end of its travel. Typically, the door lock is done by time from an alarm or body control or even your finger. If you kept power on the door lock all the time it would eventually fail. Tell us more on how your shade works.

    Do you manually roll it down (like a window)?

    Do you use fishing string on a loop that pulls it down with your motor?

    Do you have a motor that directly drives the shade?

    There are a bunch of different ways to solve the problem do you want a latch is there a way to use a brake on the motor so that when you apply power to the motor the brake turns off and vice versa?

  2. Back when I used to set up amplifiers for higher current use I used Solder wick because I had to usually remote mount parallel Mosfets about a half an inch or so from the main board so I needed something to handle the current and keep from melting the solder. This was back when the hottest Mosfet was the IRF Z40. Basically make the solder wick form a tube and slide it over the drain and source connections, twist it so that its tight to the lead and wick it all the way to the end of there the lead is makw your connections and then apply solder throughout the wick.


  3. Little problem..... I didn't get to make a copy (real busy) but I was going to make a copy (Actually I think it's 3 3.5" and a CD) today but I couldn't find it anywhere. It was in a box that had a piel of trade mags in it and I think he tossed the whole mess. I am pretty sure he didn't but I am not sure. I still have that binder on the SLC 500, but just in case you might want to pick up that software for $35 that's a steal. I looked at the chip that is installed that you are missing and it is an 89C52 IIRC is a PEROM.


  4. IIRC The unit I have doesn't have one in it, I just connect up through the same PIC module using you are using and download my program with RS logics. If I disconnect power the program is still there, even after months.

    I can't remember but I think the liscence was on one of the discs and had to be transfered onto the cumputer that it is being used on.

    But with 12 inputs and 8 outputs you can do quite a bit of stuff with it.

    Another one you might want to mess with is the Moller Klockler (sp) units they are DIN rail mounted and you can also program them through their front pannel if needed. I have been using them almost all the time on small jobs.


  5. Hi I have one of these at work still from an ole project. We keep it around for R&D. I have good news and bad news. The CPU fault usually means that there isn't a program installed in the CPU. The Prom that is missing isn't a big deal because there is a battery backed RAM.

    The bad news is that the software is high dollar and I don't think they even support it anymore. I'll have to check. I know when I was using ours that it used RSlogics. Look on Evilbay they usually have lots of parts for pretty cheap. That unit is also expandable also. If you look under the I/O side you can see about a 40 pin IDC that plugs into the next rack.

    Ladder logic rules!


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