Post by a***@houston.rr.comthe watch dog alarm usually means there is a problem with the sequence
software eproms. some
What is the specifc alarm on the screen?
( Below was logged from IRC )
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[20:51] <> oh no dont be shy
[20:51] <> if only I knew what it is
[20:51] <> you got something "falling out"
[20:52] <> you get any other alarms?
[20:52] <> -----'s analogy is pretty good see above
[20:52] <> well for starters, first off it takes about 5 minutes of the
control just running power on before the hydraulic pump will come on
[20:53] <> what uses the hydraulic pressure?
[20:53] <> chuck, tailstock
[20:53] <> sometimes the only come on when required.... like a tool change
[20:54] <> how long have you had the machine?
[20:54] <> about 2 weeks
[20:54] <> we bought it off ebay
[20:54] <> you got any prints?
[20:54] <> where are you located?
[20:54] <> schematics and ladder diagrams
[20:54] <>
[20:55] <> oh guess you are a little far away
[20:55] <> about 12 hours ne
[20:55] <> the ladder diagram is your best tool
[20:55] <> the ladder was what got me to get the spindle running
[20:56] <> what control?
[20:56] <> fanuc 3t-f
[20:57] <> does the ladder have the i/o adresses
[20:57] <> I'm not sure....I have 2 other guys who know electronics per se
[20:57] <> I know enough to be dangerous
[20:58] <> the fanucs will show on the diagonistics screen the state of the
inputs, that is what you want to look at
[20:58] <> that's on the back
[20:58] <> a seicos computer
[20:59] <> that's how we've traced the ladder
[20:59] < the thing you got to do is to check what they should be and what
they are.
[20:59] <> there's the first rub
[20:59] <> I would check what turns on the hydraulic pump
[21:00] <> there's only like 3 conditions for it to come on
[21:00] <> pumps normally come on with turnon
[21:01] <> Agreed.
[21:01] <> on this one when you press standby
[21:01] <> yep thats like the hmcs
[21:01] <> Bang.....same time as the drives contactors go down.
[21:01] <> it's almost like it thinks the control power isnt on
[21:01] <> what happens when you hit the standby button
[21:02] <> seicos must be the plc ?
[21:02] <> yep
[21:02] <> if it's good the pump comes on, the heat exchange fan in the
cabinet comes on
[21:02] <> Okay.
[21:02] <> and you can get into nc mode
[21:02] <> you can read the alarms on the seicos
[21:03] <> otherwise you are stuck in fatp
[21:03] <> you got a book on that?
[21:03] <> the seicos takes ~0v and +5v signal and interfaces to +24 volt
control buss.
[21:03] <> well with the ladder comes a list of the u codes and the n codes
[21:03] <> u codes are inputs n are outputs
[21:04] <> or the other way around....
[21:04] <> other way around
[21:04] <>for example u001 is hydraulic pump on
[21:04] <> is that showing an on state
[21:04] <> only if it starts
[21:05] <> or hold down the standby key
[21:05] <> I think n120 is the control power on
[21:05] <> I think n120 is the control power on
[21:05] <> ok then you are lacking something else like air pressure, drives
ready or something similar
[21:06] <> which brings up an interesting question
[21:06] <> I couldnt find an air connection
[21:06] <> that was one of the first things I looked for after we wired it
up
[21:06] <> it might not use air
[21:07] <> Does it have a parts catcher
[21:07] <> but there is an air pressure condition that shows in the ladder
[21:07] <> its probably an option thats not installed
[21:07] <> Parts catcher is usually the only thing that runs on air in most
lathes
[21:07] <> look at the fine print <G> a star on the print
[21:08] <> no but there is what looks like an air solenoid that sits on top
not hooked up to anything
[21:08] <> Hi, --------
[21:08] <> no lines at all hooked to it?
[21:09] <> hi ---
[21:09] <> well a cable that looks like it was spliced in
[21:09] <> at the plc
[21:09] <> ----, I doubting if it needed air, it would start at all without.
[21:09] <> ----, I doubting if it needed air, it would start at all without.
( Wouldnt )
[21:10] <> Somebody hooked up air blast, for mist, would be my guess
there....
[21:10] <> look over the rest of the inputs and see what the drive ready
inputs are on
[21:11] <> Im your monkey--so spank me!!!!
[21:11] <> maybe...there's a couple of similar 1/4 straight fittings inside
the machine right by the top of the chuck
[21:11] <> if you know how to pop the overloads on the drives and reset them
i would do that
[21:11] <> are they relays?
[21:12] <> [21:11] <> Im your monkey--so spank me!!!! I'm going to let your
wife have the honors???????
[21:12] <> DC drives you can just turn em off, IIRC.
[21:12] <> the overloads should have an input to the secios
[21:12] <> but it gives a 401 alarm too maybe.
[21:12] <> mope
[21:13] <> nope
[21:13] <> the only alarm I ever get is that system alarm #4
[21:13] <> the dreaded watch dog
[21:13] <> shoot the dog <G>
[21:13] <> I wish
[21:13] <> and it's intermittant
[21:14] <> it has to be one of the inputs not right
[21:14] <> Long way around things, but Maybe write down any suspect inputs.
[21:14] <> sometimes can sit ready for 3 or 4 hours, sometimes 2 minutes is
a stretch
[21:14] <> then when watchdawg barks, take a look see.
[21:14] <> i would go throught the n inputs and see what should be on
[21:14] <> ok
[21:14] <> loose connection, corrosion
[21:15] <> and when it fails check em again
[21:15] <> we pulled all the relays and cleaned them
[21:15] <> the guts are pretty clean
[21:15] <> if its a relay it probably an aux contact on one of the
contactors
[21:16] <> Any obvious wiring mods in the box?
[21:16] <> nope
[21:16] <> how many pages of n inputs do you have?
[21:16] <> 3 I think
[21:16] <> about the same for u
[21:17] <> most of them are not necessary for turn on.
[21:17] <> can you fax me them or email
[21:17] <> certainly...our office girl has been scanning like a slave all
afternoon
[21:18] <> doing the entire electrical manual
[21:18] <> get me the inputs and i'll tell you what ones to check
[21:18] <> ok
[21:19] <> if you email them make sure you make the subject plain so i
don;t put it in the junk mail
[21:20] <> ive done that once or twice <G>
[21:20] <> This all works out now you gonna hafta make sure the bossman
sends____ a sixpak of moose piss now you hear ??
[21:20] <> a 24
[21:20] <> lol
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So, what ya got, Aaron???
--any ideas *anybody* has at this point I'm sure will be much appreciated.
--
SVL