Hello,
I'm having some problems with my Bridgeport Series 2 Interact 2 and i was hoping that maybe you could help me figure it out... First of all, i bought this machine second hand a few years ago, but i didn't use it, because i had the chance to buy a Hurco Milling Machine and i used it instead, being easier to program than the Bridgeport. Now, when i needed the Bridgeport too, i found out it didn't work... The batteries were dead, so the parameters were all erased from memory and i had to type in the parameters...I used the manual for that purpose and i also had a list of parameters that a guy sent me by mail, so i'm not sure that all the parameters are ok. When i tried to home the machine, after the X and Y axes were homed, the Z axis didn't move at all, so i opened the servo's panel and tried to spin the motor by the belt, by hand. It was stuck, so i took the belt of the motor and gave a little shock to the motor, with a hammer, and it started spinning again. I put the belt back on and tried to home the machine. The X and Y axes home with no problem at all, but the Z axis, after moving down, when i hit the "cycle start" button the second time, it moves up until it hits the limit switch and suddenly the power goes off and the message "pass over z- reference mark" disappears. And when i press the "power enable" button, the Z axis suddenly goes up fast and i get the message "gross positioning error"... It's strange that is seems that the Z axis is homed, but when it homes", the power goes off...And why does it go UP fast, when i turn the power back on? That's how it broke 3 limit switches so far... Could it be because of the parameters, or because of the position of the limit switch? Because after the first limit switch was broken, i replaced it with a new one, but i'm thinking that maybe i missed the very same height the first switch was on... And if it's because of the parameters, can you, please, give me a list of the parameters to be entered in order for the machine to work properly? I also need the schematics, because i couldn't find them over the internet. Thank you a lot.

Grigore Borota
Romania

Appears or dissapears?

It could be bad parameters, could be your limit switch position or could even be a faulty z axis encoder.

you could try moving your z limit switch down so it touches it sooner. If that solves your problem then you can reposition the switch and adjust the z parameters to match the new location.

Try ebay for schematics, alternatively hardinge bridgeport in leicsester will sell you a copy for £70 UK sterling

The message DISAPPEARS and it seems like the Z axis homed. But then the power goes off. I don't understand why when i turn the power back on, the axis goes up really fast until it hits and brakes the limit switch...

I tried a lot of different positions for the limit switch and it seems that this is the one that works, because if i lower it down (or lift it up), i get the "gross positioning" error when the axis hits the switch.

And how do i change the parameters to match the new position of the limit switch? I never worked with this machine because i've been having problems with it since i bought it, so i new at operating it...