big denford triac problems

[mark35gun]

Its fairly easy to convert a Triac to single phase. On mine, the only thing actually running on 3 phase (once you look at the drawings) was the monitor and the coolant pump.

ammeter on the phase convertor, its a bought one 8hp, i just forget the breed at the moment
i believe there are 3 phases to the drive axis boards so single phase isn't possible
it does seem that if the power off sequence is not followed to the letter it will lunch the electronics

[Chaz]

ammeter on the phase convertor, its a bought one 8hp, i just forget the breed at the moment
i believe there are 3 phases to the drive axis boards so single phase isn't possible
it does seem that if the power off sequence is not followed to the letter it will lunch the electronics

Its worth checking. I had an original servo triac, it was all single phase powered.

[mark35gun]

ok not 100% on these by any means but i have definitely got 3 phases going to the axis boards
no coolant pump on it, as i don't use coolant really and no tool changer either as i like it without and for what i want i don't need one, just something else to go wrong

[Chaz]

ok not 100% on these by any means but i have definitely got 3 phases going to the axis boards
no coolant pump on it, as i don't use coolant really and no tool changer either as i like it without and for what i want i don't need one, just something else to go wrong

Some pics will be good. Some Triacs have wiring diagrams with them, do you have any you can scan / put here for review?

[mark35gun]

no i'm afraid not, no wiring diagram to speak of, but it is factory fanuc om, and un messed about with, i know that before i had the last meltdown i had low voltage alarms on x,y z, axis boards, i will try and post some pics later on today

[Chaz]

no i'm afraid not, no wiring diagram to speak of, but it is factory fanuc om, and un messed about with, i know that before i had the last meltdown i had low voltage alarms on x,y z, axis boards, i will try and post some pics later on today

Thanks. Ill do some quick googling but pictures will help.

[mark35gun]

odd thing is the guy i bought it off had ran it for 11 years with no problems with this set up,
now here's the thing, he disconnected the cabling from the phase convertor to facilitate moving the m/c and marked up all cables and where they go, i was very careful to re wire exactly as marked, but if he has made a mistake................