Quote Originally Posted by mturneruk View Post
Got some Noob questions. Thanks for any help.

1. Can anyone confirm if its safe to power up the VFD without the spindle connected for setting the parameters at the beginning ?

2. I have already purchased 3 core foil shielded Belden Cable for my spindle.
http://www.ebay.co.uk/itm/111817521022
Is this ok ?
I just read i was supposed to use 4 core CY Cable.

3. Do i have to earth the spindle at the spindle end by removing the top and making a ground point and connect to pin 4?
E.g. Should I have 4 core cable as well as the shielding ?



Cheers
Martin
1. I believe it is ok to run the vfd without being connected BUT do not connect or disconnect with it powered up.
2. Yes it will be OK CY cable is generally used but you have already purchased it so use it.
3. It is ok to earth the shield at the VFD end only, 4 core is not a necessity .