A Simple Electronics Question

[Downwindtracker2]

Seasons Greetings. I hope the season finds you well. I have good skill set, but computers and electronics are not in it. I have a BusyBee DF1224g lathe. A belt drive, back geared 12" lathe. I bought it and a mill/drill used. Both electrics were a mess. The mill/drill is repaired and sorted out. For the Lathe rather than just replace the transformer, switches and starters, I went with Hitatchi WJ200 VFD. Replacing the 1 1/2hp motor with a 3ph 2hp Baldor, belts and bearings was easy for a retired millwright. But wiring and programing were another matter all together. I was able to run the motor from the VFD control panel, on/off, but when I wired in the switches all I got was a slight creep when I hit the jog buttons. And the VFD fan stayed on. A failure !

The first question which I haven't been able to fiquire out : Using the VFD internal power source for the switches is the wiring "sink" or "source" . There is jumper that has to be moved.

There will likely be other questions, but for now a thank you.

 

[djberta]

In the section of the manual you should be able to find two different methods of wiring external switching to the drive. One uses the built in power supply, the other uses an external supply. From what your describing it might be a couple of things. It could be that the wiring is correct if you followed the instructions and the settings on the drive are not correct. Or the wiring is incorrect and the settings are not correct.

I have attached the manual I could find is it the same as yours?
Have you set up the inputs to be latched or momentary?
On section 4-5 of the manual it shows the full diagram with I/o?
On section 4 -8 of the manual it shows how to select between sink or source, by moving the jumper In the following pages it goes through the different setups depending on how you want to run your switching.
Is your wiring similar to that on 4-31?

https://www.hitachi-iesa.com/sites/default/files/supportdocs/WJ200_Instruction_NT325X.pdf.

 

[thestelster]

I have several WJ200's controlling my motors, and this thread helped me enormously:

Another PM1340GT Lathe VFD Control System Build with a Twist

As a hobbyist and "amateur" machinist, I am always learning and trying new designs for the things I build an my VFD control systems, which I occasionally make for others. I am always trying to optimize the builds through better deigns, safety features, use of good quality components and trying...

www.hobby-machinist.com

 

[Downwindtracker2]

Thank you djberta, in checking if I had printed the relevant pages of the manual, I found one of my mistakes and an answer to my question. Great

Thank you thestelster, I've saved that thread in my bookmarks. In fact after rereading it last night, I ordered some diodes for the jog and E-stop wiring. I'll have to find out how to wire them in. but that's a question for when I have them in hand.

This is all new to me. I find as I've gotten old and stupid, I have to reread things multiple times before it clicks. Then I don't remember it for long ! The other option is looking at grass form the root side.

I had walked away from the wiring and programing, and just added it to the get-a-round-to-it list. But I now need my lathe to make an adapter for our freestanding gas fireplace/heater. I had made one on my son's lathe, but his is 10x22 .My lathe is easier to use. That adapter didn't work out, so I'm onto revision # 9 . The quicker I have the heater working, the quicker I have heat beside my computer. Luckily the weather hasn't turned cold again. chuckle.