Here is a list of all the postings Dusty has made in our forums. Click on a thread name to jump to the thread.
|Thread: Warco WM250|
I feel a very large whisky coming on. I will try as you suggest You may hear the screams from where you are if it will not work.
No John I only swapped at one end and it was W and V would that make any difference?
Having been fiddling about on other things that the boss said I needed to do I have just got back into the workshop to hopefully finish this installation. Lo and behold the motor is running the wrong way. I have to admit that I had not noticed this before, so I thought I know how to fix this just reverse two of the wires connecting VFD to motor, wrong it still runs the wrong way. What is the next step?.
|Thread: B&S No:2 Surface Grinder Overhaul Questions|
One thing when your restoration is completed don't forget to grind the mag chuck, you will be amazed at the number of people who do not and then complain it will not grind parallel
Try removing the rack and/or pinion, so the bed is not influenced by it. Then place the bed onto the machine and push it up and down by hand, you should be able to find if it is the bed/table that is binding or the rack and pinion that is causing the problem, which is what I suspect. Make sure you do not get any grinding dust on the ways, if you do oil should not go anywhere near it until you have removed any dust, use paper towelling wipe and throw, rag should not be used
|Thread: Reamer Identification|
I fear that 14thou interference fit on .250 would require the services of a 100 ton press .0014 would be nearer the mark is that what you meant.
|Thread: Warco WM250|
I have looked at the instruction manual for the VFD and if I am right by setting P12 to 2 I should be able to reverse from the keypad, if I ever needed to and I think remote (pot) should still work, I hope.
Having given this some thought today I have decided; The inverter will be fixed to the wall slightly to the left of the headstock, out of the way of swarf and cutting fluids, I am able to reach it without any problem.
I am quite relaxed about not reversing, I cannot remember the last time I needed to.
Now for the interesting bit; I would like to use the original 'filter' to power the digital speed readout and reader. This has the sockets to plug both sets of connections in place on the PCB. I would like to utilise the NVR switch (shown on P3 of this post) This would give me emergency stop should it ever be required. My thoughts are to bring the mains cable in through the back of the control box to the switch, and then back out to the VFD. I would then take a connection from the switch side to the 'filter' to power that. This would then give the power to the speed display.
The speed pot I wish to leave on the front of the lathe as being the most convenient place. Have I taken a wrong turning somewhere?
Hallelujah, hallelujah, I am this evening meeting some former companions of my toil (workmates) usually it is a couple of pints put the world to rights and go home, tonight I will have something to celebrate.
It worked just as you said John. Brilliant Oh and yes it is connected delta.
Been thinking, I know that can be dangerous, but could having the link between 1 and 2 rather than a switch be causing a safety feature to cut in and prevent the drive starting?
Reset, checked the link and all O.K. p12 and p15 both show 0. Could it be that I have a defective drive?
With your greater wisdom, would a factory reset help. My thinking is that if I perform that, we would, or should know that the VFD is set to factory default or is that too simple?
Talk about making you look a liar. Back home, I have never been so quick at Moorefields normally 2hrs today out inside 30mins. John is there anything I can be looking at that might help?
Thanks John, I am afraid it is an ongoing problem that has be exacerbated by cataracts. Today is a check up, which by the time I get there and have my examination I loose about 5hrs. Not much fun this getting old lark, but must not complain, the wooden overcoat is not an option I want just yet.
Yes John, I did manage to find it and checked and it does read 0. I am struggling a bit at the moment with eye problems. I have an appointment at Moorefields Eye Hospital this afternoon, so if I do not reply to you that is why.
John, I have checked and p12 shows 0 but I do not have p15 I stop at 14. My error code I have discovered is quite normal when you turn the thing off. Found p15 and that shows 0. Good job I did not open my bottle of good red wine yesterday. This is becoming very frustrating.
Edited By Dusty on 13/03/2017 10:57:44
Turn on and it shows 'stop', press 'go' button = nothing. Pressing stop button only shows cycles, amps, rpm etc but as the motor is not running it is of no relevance. Turn the whole thing off at the socket and it shows stop after a few seconds U-uol E flashes on for a second before shutting down.
Everything connected as per instructions, switch on lo and behold the drive shows signs of life. Now for the exiting bit press the up button nothing dead, lifeless, motor not running. I have checked all connections as far as possible, what have I done wrong? I have given the pot a twiddle and that had no impact on the lack of rotation.
Edited By Dusty on 12/03/2017 14:37:50
I am slowly getting there, acquired some 4 core cable, it is 2.5 which is a bit heavy but I believe in using what you have. This is now wired into the motor and crimp terminals are in position on the other end ready to connect to the VFD I have now located the PE terminal. I do have a question, the speed control pot on the lathe is, it appears only 4k. I have another (new one) rated at 10k which is going to be the best to use? If my memory is right the terminals on the pot are the outside ones are the track and the centre one is the moving contact, but 50yrs could have dulled my memory, like everything else.
Edited By Dusty on 09/03/2017 19:10:13
Ah a small problem or rather 3 First the VFD will not fit into the control box and if it did I would not be able to access the buttons. I am unable to see a PE terminal on VFD. I did strip the wiring as I needed to get the control box assembly from the lathe to cut the motor hole or rather I removed the Control board and filter. The wires from thee pot are still in position as are the wires from speed reader and display. The screened cable from the pot has three wires I have some screened cable on order to replace this as I suspect I will need to place the VFD on the wall near the lathe?
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