In fact I made a little box that is on the front of the lathe with the controls.
there is a fwd/off/rev switch, an emergence stop button, a speed controller for the VFD and a tachometer.
There are two more buttons for jog, but the mode the VFD is in doesnt work with speed control and jog for some reason.
I've just moved workshop, so the Lathe is in buts at the moment.
I'll add a relat and some resitors to the jog buttons to give me a 20% speed fwd or rev when the button is held down.
In addition I've added a suds pump. this is an independent switch, but I'm think of having it linked to the VFD's relay so it only comes on then the lathe is running.
In fact I made a little box that is on the front of the lathe with the controls.
there is a fwd/off/rev switch, an emergence stop button, a speed controller for the VFD and a tachometer.
There are two more buttons for jog, but the mode the VFD is in doesnt work with speed control and jog for some reason.
I've just moved workshop, so the Lathe is in buts at the moment.
I'll add a relat and some resitors to the jog buttons to give me a 20% speed fwd or rev when the button is held down.
In addition I've added a suds pump. this is an independent switch, but I'm think of having it linked to the VFD's relay so it only comes on then the lathe is running.
Thanks for this @skotl , finally got round to fitting mine last night (I got it for last Christmas) and this info save me a lot of searching@roofman asked for some info on wiring up the tachos so here's the details on how I wired mine.
As luck would have it, the two I ordered had completely different wiring at the back so hopefully this will help you out if you have either of these displays
First - a schematic layout, for those of an electronic bent;
View attachment 96710
Note that the wire colours on the sensor were the same for both of mine, however both did have a tiny sticky label on them so double check what is written there to confirm the wiring;
View attachment 96711
The (bad) instructions suggested a 22k pull up resistor between the signal and the +ve supply. A little research suggests that the LED displays already have a pull-up resistor so, if you have one to hand, I would wire it in. If not then it certainly worked fine for me without them on the bench.
I wired them in, anyway, as I had some handy.
This is the first type of display, which has a 4 pin header at the back;
View attachment 96717
The board is clearly marked that the left most (red) is +ve, the next (black) is -ve and the right most (yellow) is the incoming signal.
The other board had five pins and was more of a challenge as it was marked in Chinese!
View attachment 96718
Here, +ve is the left most, -ve is the next one and signal is the far right. In fact, the wiring is effectively the same as the other unit.
Finally, here's some larger pics of the two LED modules;
View attachment 96719
View attachment 96720
So now you all have your tachos fitted......is the finish, better, worse, or just the same?
Can you hit it with yer knee? I was going to mount my emergency off switch above the lathe until Mr Health and Safety Parm pointed out that if you get dragged into, and wrapped round, the lathe you want something you can kick with your flailing legs.
Sobering, but handy advice!
You could have a pressure mat by the lathe and if it drags you screaming into its maw, the loss of pressure will shut it off.