Thread: Novamill - Mach3
Hybrid View
-
29-01-2024 #1
I can probably guess why homing and limits don't work then.
Denford for a while used inductive NAMUR sensors for homing, which are a sensor type designed for volatile atmospheres (basically a two wire sensor that changes resistance/current flow, so any wiring faults don't result in sparks). These are not easy to interface, but the original controllers used them, so I'm guessing whoever done the retrofit probably never changed them.
Instead they've probably modified the limit switch wiring to use them as home switches, as the limit switches would have originally broken the E-Stop circuit, but then they've never really implemented them. Or possibly disabled them because the Z has gone faulty.
Before you dismantle anything major, if the machine still has the big Harting multi-connector for connecting the machine to the control box, unplug that and very carefully look to make sure all the pins and sockets are in position and the same height. I've seen them become unseated, so they don't make contact.Avoiding the rubbish customer service from AluminiumWarehouse since July '13.
-
29-01-2024 #2
The homing situation makes a lot of sense now, from what you've said. Can the physical switches be used for homing or is that impractical?
Thread Information
Users Browsing this Thread
There are currently 303 users browsing this thread. (0 members and 303 guests)
Similar Threads
-
FOR SALE: Denford Novamill
By Paul Urquhart in forum Items For SaleReplies: 0Last Post: 21-01-2019, 11:48 AM -
FOR SALE: Denford Novamill
By m_c in forum Items For SaleReplies: 8Last Post: 27-01-2017, 04:41 PM -
CONVERSION: Denford Novamill Mach3 conversion
By Miller in forum Conversion Build LogsReplies: 28Last Post: 25-06-2015, 04:00 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 -
What's best for a Novamill
By leadinglights in forum General DiscussionReplies: 6Last Post: 10-08-2010, 02:53 PM
Bookmarks