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  1. rusape

    External storage disk problem

    Yes. My USB is o.k as it works with my memory stick, digital camera etc. The only real differences I can determin from my laptop comp and home comp is that my file system on laptop is NTFS while I use FAT32 on home comp. 2000 should be able to read NTFS. External drive is also NTFS.
  2. rusape

    External storage disk problem

    I have a Mobile disk storage device. The problem I have is when I connect it to my computer via the USB port, it connects and then immediatly tells me it has been disconnected and that you should follow the correct disconnection procedure etc. It works fine on my laptop which runs on XP. My home...
  3. rusape

    Surge protection

    I have been asked by my company to investigate and make recommendations with regards to voltage surges on our plant. I do not have alot of experience with this kind of thing and was hoping if someone might have some knowledge, experience with this, or know of a good web site to get the relavent...
  4. rusape

    Reliance Flexpak drive

    AFab. The drives I normally interface to have a suicide or enable bit that gets lifted before the reference gets sent. This bit releases the speed regulator and the drive can start controlling. Now with the Flexpak I don't see this facility and don't have any dwgs to see what goes on on the...
  5. rusape

    Reliance Flexpak drive

    The drive is a 5 HP Flexpak Plus IM-3900. They were installed in 1984. I have tried searching the different Rockwell sites but probably need to contact them. Thanks for the responses.
  6. rusape

    Reliance Flexpak drive

    Does anyone have any info on these old drives. I am in the process of interfacing via a plc to these drives but do not have any info on their "insides". What I need to know is when is their regulators released "suicide lifted". Is it the same time as when the m contactor picks up? Any info would...
  7. rusape

    modbus plus,Quantum and Panelmate info

    Could anyone may-be helpme as I have searched the internet and don't find relevant info. I have inherited a TSX Quantum 140 cpu 113 02 PLC and a modicon panelmate plus 1000 unit with no info on any of the two. I need to communicate between the two. What I need is the cable pin layout for...
  8. rusape

    Motor current unbalance

    Thanks for the repsonses. The fields of both armatures have been checked out and are o.k. I am presently balancing the currents by reducing the one field but hence have a limitation on my top speed due to field weakening limit. The motor does have equalizing windings, but am not sure if they are...
  9. rusape

    Motor current unbalance

    We have a large mill dc shunt motor with 2 armatures connected in parallel electrically on the same shaft. Each have their own seperatly excited field. Current balancing is done between the armatures by decreasing the respective field current. The problem I have is this. We have just replaced...

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