Hybrid View
-
17-10-2014 #1
Last Activity: 2 Weeks Ago
Normally you would have a smoothing filter to convert the PWM to an average voltage, presumably that must be in the vfd?
The other thing to be careful of is to check the vfd is ground referenced. My Novamill came without its control box so I had to build the whole thing, using a KB Electronics thyristor controller. In this the 0V rail is not connected to ground but floating with 100v or so of rectified ac. Not a good idea to connect to a controller with its 0V common earthed! Currently I use manual speed control, will have to rig up an opto isolator to allow M3 to control the speed.
The Novamill is a great little machine, much nice than a converted Sieg machine, enjoy!Last edited by JohnHaine; 17-10-2014 at 07:45 PM.
Reply With QuoteThread Information
Users Browsing this Thread
There are currently 3 users browsing this thread. (0 members and 3 guests)
Similar Threads
-
FOR SALE: for sale: Denford Novamill
By Mash Govan in forum Items For SaleReplies: 4Last Post: 12-04-2016, 11:18 AM -
eBay: Denford Triac with Mach3 Conversion
By large519 in forum Items On eBay UKReplies: 0Last Post: 29-04-2015, 05:34 PM -
CONVERSION: Denford Triac Mach3 conversion
By rnr107 in forum Conversion Build LogsReplies: 11Last Post: 23-10-2014, 02:44 PM -
FOR SALE: Novamill, converted for Mach3 for sale.
By Mad Gnome in forum Items For SaleReplies: 9Last Post: 09-10-2014, 03:23 AM -
RFQ: Looking for somone to finish conversion Denford Mirac with Mach3
By CHudson in forum Projects, Jobs & RequestsReplies: 0Last Post: 14-10-2010, 08:20 PM
Bookmarks