Thanks: 0
Likes: 0
Needs Pictures: 0
Picture(s) thanks: 0
Results 1 to 1 of 1
Thread: Digital tacho for Harrison lathe
-
19th May 2024, 12:00 AM #1Most Valued Member
- Join Date
- Aug 2015
- Posts
- 4,474
Digital tacho for Harrison lathe
I am in the process of converting a Harrison M250 from 3 phase to single phase operation via an Ecogoo 380 volt VFD and will be keeping as much of the control panel as I can original except for the addition of a digital tacho and potentiometer for the VFD. Over the last few days I have made a bracket to mount the inductive proximity sensor and fitted a gear directly over the end of the spindle for the sensor to detect.
I was eager to give it a test run today even though the control panel is not ready and the VFD is not mounted in an enclosure, I think it works great and responds to speed changes faster than other tacho installations I have done where I only used 6 or 8 pulses per revolution, this gear has 42 teeth. I may be able to reduce the 4 second VFD acceleration time down a bit as well.
IMG 6512 1 - YouTube
Attachment 405807
Read the full thread at metalworkforums.com...
-
19th May 2024 12:00 AM # ADSGoogle Adsense Advertisement
- Join Date
- Always
- Posts
- Many
Similar Threads
-
Harrison L5 lathe?
By goodwoody in forum METALWORK FORUMReplies: 3Last Post: 28th April 2015, 11:40 PM -
Harrison L5 lathe
By morrisman in forum METALWORK FORUMReplies: 7Last Post: 4th March 2015, 07:05 AM -
Harrison lathe video
By morrisman in forum METALWORK FORUMReplies: 3Last Post: 28th May 2014, 11:03 PM -
harrison lathe
By morrisman in forum METALWORK FORUMReplies: 32Last Post: 18th December 2012, 09:50 AM