Reposting my post here in the hope of some help?
viewtopic.php?f=47&t=5157&p=20416#p20416
Cheers Roy
Search found 104 matches
- Tue 09 Aug , 2016 8:59 am
- Forum: Electronics
- Topic: Triac blowing fuses?
- Replies: 0
- Views: 4483
- Tue 09 Aug , 2016 8:56 am
- Forum: Triac
- Topic: Triac blowing fuses?
- Replies: 6
- Views: 6902
Re: Triac blowing fuses?
New capacitor fitted, now back to blowing fuse f3 every now and then??
- Thu 04 Aug , 2016 11:06 am
- Forum: Triac
- Topic: Triac blowing fuses?
- Replies: 6
- Views: 6902
Re: Triac blowing fuses?
Ok so having some success by not using the stepped down 12v (former stereo) supply and using a standalone supply for the breakout board power. The fuses were holding out. However after turning the drives off this morning & then switching them back on, this capacitor has blown. !!! Whats going on? Is...
- Wed 03 Aug , 2016 18:19 pm
- Forum: Triac
- Topic: Triac blowing fuses?
- Replies: 6
- Views: 6902
Re: Triac blowing fuses?
So I've now disconnected my use of the 12v stereo supply. Fuse f2 is now holding out, but f3 is still blowing, although not straight away as before.
Still puzzled
Still puzzled
- Wed 03 Aug , 2016 9:29 am
- Forum: Triac
- Topic: Triac blowing fuses?
- Replies: 6
- Views: 6902
Re: Triac blowing fuses?
Still trying to figure this out, I remember reading somewhere that if there is a problem with the 12v it automatically shuts down the 5v? I have been using the old 12v supply for the stereo unit to power the 5v (via a voltage regulator) for my breakout board. Could this be part of the issue? Would s...
- Mon 01 Aug , 2016 9:01 am
- Forum: Triac
- Topic: Triac blowing fuses?
- Replies: 6
- Views: 6902
Re: Triac blowing fuses?
Hi Alan, Many thanks for your prompt reply. Here is a view of the complete set-up in the old drawer, and then in the new cabinet.(a few weeks ago before wiring complete) The last one shows a close up of the problem area, (fuses removed) Its fuse F2 & F3 which are both 3.15 Amp time delay ones. Cheer...
- Sun 31 Jul , 2016 19:02 pm
- Forum: Triac
- Topic: Triac blowing fuses?
- Replies: 6
- Views: 6902
Triac blowing fuses?
My 1986 triac is blowing both of the 3.15 amp fuses (f2 & f3) on the power section of the pnc main board when the board is powered up. Any ideas what would be causing this? This is the only section of the board I use as I have piggy backed off of this for Mach 3 & been running fine for several years...
- Sun 31 Jul , 2016 18:40 pm
- Forum: Triac
- Topic: Triac PNC logic transformer
- Replies: 1
- Views: 2965
Re: Triac PNC logic transformer
Ignore this it's not the transformer
- Fri 29 Jul , 2016 22:58 pm
- Forum: Triac
- Topic: Triac PNC logic transformer
- Replies: 1
- Views: 2965
Triac PNC logic transformer
Does anyone have the spec of the toroidal logic transformer in the triac PNC?
I think mine has had its day
Cheers Roy
I think mine has had its day
Cheers Roy
- Sun 20 Mar , 2016 21:56 pm
- Forum: Triac
- Topic: Triac base casting mounting holes dimensions
- Replies: 0
- Views: 5583
Triac base casting mounting holes dimensions
Hi I am just drawing up a new bench for the Triac, as it will be moving home shortly. I am going to remove it from its base/electronics cabinet & fit directly to a new bespoke bench with coolant tray (Something I intended to do years ago when I did the Mach 3 conversion). I am away from the machine ...
- Tue 17 Jan , 2012 17:05 pm
- Forum: Triac
- Topic: Triac returns to action
- Replies: 6
- Views: 5239
Re: Triac returns to action
Nice one Roy, How many Rudge 250s are there out there? What is the material specification? There probably about 300 + 250cc Rudges still about. Material is EN36B (3 1/4% Nickel chrome, 65 ton) These will now be hardened .040" deep to 65 HRC, then the side bearing faces surface ground & the bores ho...
- Mon 16 Jan , 2012 18:30 pm
- Forum: Triac
- Topic: Triac returns to action
- Replies: 6
- Views: 5239
Re: Triac returns to action
Couple of pix to show how they work!
- Mon 16 Jan , 2012 18:23 pm
- Forum: Triac
- Topic: Triac returns to action
- Replies: 6
- Views: 5239
Triac returns to action
After my Triac has been laid up for about 2 years due to doing up a house, building a garage & many other projects. I finally got round to using it again this week, so thought I would post up a couple of pix of what I've been making. These are overhead rockers for a 1930's fully radial 250cc Rudge m...
- Thu 29 Dec , 2011 22:59 pm
- Forum: Triac
- Topic: Triac Z axis only + direction
- Replies: 15
- Views: 9354
Re: Triac Z axis only + direction
Well we are cooking on gas again tonight. Made up the new interface board, fitted it and she was away once more.
Strange thing is I can not find anything amiss with the old board!!
Thanks for your input anyhow.
Cheers, Roy
Strange thing is I can not find anything amiss with the old board!!
Thanks for your input anyhow.
Cheers, Roy
- Wed 28 Dec , 2011 22:46 pm
- Forum: Triac
- Topic: Triac Z axis only + direction
- Replies: 15
- Views: 9354
Re: Triac Z axis only + direction
Thanks Angeltech, I will knock up the new interface board tomorrow & give that a try. If I get no joy, I will run a wire as you suggest. I may have the experimental parrallel cable knocking about somewhere which I originally wired into the interface when I was first experimenting with the conversion...
- Wed 28 Dec , 2011 21:58 pm
- Forum: Triac
- Topic: Triac Z axis only + direction
- Replies: 15
- Views: 9354
Re: Triac Z axis only + direction
Its a CNC4PC c11 breakout board into a homemade digiplan interface using 3K3 resistors & BC547 transistors (as per the digiplan manual). Its this interface board which is the one I am going to re-make tomorrow. I remember a couple of years back I had a transistor go down on it causing some issues. I...
- Wed 28 Dec , 2011 18:57 pm
- Forum: Triac
- Topic: Triac Z axis only + direction
- Replies: 15
- Views: 9354
Re: Triac Z axis only + direction
been at it with a multimeter today. All wiring from the drives to the steppers seems to be good. I've been playing around with the outputs on the interface board (between breakout board & drive board). using the Z output I can replicate the problem on the X axis but still get the problem if I use th...
- Tue 27 Dec , 2011 22:32 pm
- Forum: Triac
- Topic: Triac Z axis only + direction
- Replies: 15
- Views: 9354
Re: Triac Z axis only + direction
Iv'e given the stepper motor a good 'warm' 2 hours with the hair dryer, so I think thats eliminated any possible condensation. Still no Joy!
I will try and check the wiring from the stepper drives to the motors tommorow if possible. Only trouble is access being a pain!!!
I will try and check the wiring from the stepper drives to the motors tommorow if possible. Only trouble is access being a pain!!!
- Tue 27 Dec , 2011 20:00 pm
- Forum: Triac
- Topic: Triac Z axis only + direction
- Replies: 15
- Views: 9354
Re: Triac Z axis only + direction
Thanks, I'll have a look at that one then. Although I assume this will be ok as I swapped the X axis output (which I know is working) from my interface board to the Z to eliminate the breakout board & the interface board. hence I have a suspicition it is beyond this.
Cheers, Roy
Cheers, Roy
- Tue 27 Dec , 2011 18:28 pm
- Forum: Triac
- Topic: Triac Z axis only + direction
- Replies: 15
- Views: 9354
Re: Triac Z axis only + direction
Thanks. No Havent actually tried that one. Whereabouts should I be doing this. On the drive card?
Sorry but I am trying to get my head around it all again as its a couple of years since I played with the Triac electrics.
Cheers, Roy
Sorry but I am trying to get my head around it all again as its a couple of years since I played with the Triac electrics.
Cheers, Roy