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Technical support / Help needed with new project.
« on: May 26, 2006, 09:23:26 AM »
I will start from the beginning.
What I have in my home workshop is an old relay and timer driven Band saw, its seen better days yet is mechanically sound.
It has an Auto feed and cutting head both driven by hydraulics and controlled by relays, contacter's and timers 110v.
The machine runs and cuts very well but needs constant attention to the electrics. Mostly due to neglect and interference by the previous owners.
My plan and a serious one at that is to fully re-wire and upgrade all the electrical system. It was wired for 3 phase 415v but I,ve change one motor to 240 and added an inverter for the other. It also had a 240v pump motor so thats been left as is.
So what I need is a spec on the 240v supply gear, would be running about 20amps at present.
Recommendation on what plc would be best for this application
help with the programing.
Function:
Mains in
auto feed mode/ manual mode switch, various switches already fitted for start and stop positions(EOS) of each action, control action is made by 110v two way hydraulic solenoids. Various warning lights, start and stop buttons.
Wish list and final goal.
The length of bar feed in on each cycle is governed by a movable hard stop, this I would like to change for something that is both accurate and changeable from an HMI or even a touch screen.
I'm just building an addition to the machine that will place a large drill in line with the machines bed, I'm wanting to use the bar feed but switch function to operate the drill head and not the saw blade. The mechanics is simply but the hardware and programing will need to added.
So if your still reading and can offer any advice I would be most grateful.
Regards
Paul
What I have in my home workshop is an old relay and timer driven Band saw, its seen better days yet is mechanically sound.
It has an Auto feed and cutting head both driven by hydraulics and controlled by relays, contacter's and timers 110v.
The machine runs and cuts very well but needs constant attention to the electrics. Mostly due to neglect and interference by the previous owners.
My plan and a serious one at that is to fully re-wire and upgrade all the electrical system. It was wired for 3 phase 415v but I,ve change one motor to 240 and added an inverter for the other. It also had a 240v pump motor so thats been left as is.
So what I need is a spec on the 240v supply gear, would be running about 20amps at present.
Recommendation on what plc would be best for this application
help with the programing.
Function:
Mains in
auto feed mode/ manual mode switch, various switches already fitted for start and stop positions(EOS) of each action, control action is made by 110v two way hydraulic solenoids. Various warning lights, start and stop buttons.
Wish list and final goal.
The length of bar feed in on each cycle is governed by a movable hard stop, this I would like to change for something that is both accurate and changeable from an HMI or even a touch screen.
I'm just building an addition to the machine that will place a large drill in line with the machines bed, I'm wanting to use the bar feed but switch function to operate the drill head and not the saw blade. The mechanics is simply but the hardware and programing will need to added.
So if your still reading and can offer any advice I would be most grateful.
Regards
Paul