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well, yeh

I mean, what could go wrong ? :rolleyes:

I've already started one fire on this machine -

so... just wire it up UVW ...

I've barely used it so I'm a bit green on VFD specifics

I agree...

But there doesn't seem anything that special (1ph to 3ph) in the burned out control box - unless it can be done in some inefficient relatively partless manner ?

I'll investigate...

finally got around to this.

I'm getting 25ohms on all three possible termination combos...

I expected the common like you said to show the same but the other terminations (where the cap would...

I see what you're saying is the same as drawing on the left here:

http://www.industrial-electronics.com/image/12-49.jpg

maybe at work yeh, someone will have one (theatre lighting) ... checking for smoke before it gets out again ?

this is what I'm reading:

http://farm7.static.flickr.com/6055/6251553916_abd6d36954.jpg

do I have it correct ?

(and earth to chassis)

Load like a crapheap of grease in the gearbox ? I was expecting oil ...

Which motor type am I meant to be reading up on:

Single-phase induction motors : AC MOTORS

permanent split or the 3...

So I connect earth to the chassis ?



seven wires are for the lathe motor, not the milling motor which is four wires, which is what I'm interested in - I shouldn't have mentioned it.

Pretty...

Thanks for the link to the parts list...

Saves me from forking out 25quid for one !

the pic here shows the milling motor:

http://farm7.static.flickr.com/6219/6250803415_0bc174098a_b.jpg
...

Putting on my fire investigator cap the burned control unit appears to be a large cap, and the rest is mostly plain old mechanical switching and nothing substantial electrically that I can figure out...

Single phase input but the mill motor has 1 ground and 3 other wires.

Motor tag isn't on the motor but I can tell you all about the lovely pins that held it in place (no idea how many previous...

I have an Emco milling attachment for my Emco Maximat V10

When I got it the electronics were listed as dodgy and sure enough turning it on it caught fire (flame2) :tired:

I've replaced the...

Pat,

Signal would swing from -10v to +10v

I'm designing the system so voltages are up to me...

I'm sure I'll have a 12v supply at least (what ever W is required)
Prob/maybe a 24v same deal....

The links I provided above are the specific input equipment - the driving element is a Mesa 7i33 PWM to analog daughter card for a Mesa 5i22

But it could be a desktop supply or anything really -...

From what I understand (which I admit is probably faulty) there might be situations where these solutions make sense - when the voltage is halved the receiving device may no longer understand the...

Hi Pat - its does help...

You're the first person mention the halving of voltage which makes me think either we're both going mad, or there are a few people not even aware of or how setting their...

I'm wondering what the best and/or usual workaround is in the following situations:

single logic output >> differential logic input
single PWM output >> differential PWM input
single analog...

hmmm, well lets hope I'm confused! It'd be an easier fix ;)

but to answer your question:

Allen Bradley Ultra3000
Chapter 2 page 3 Pins 25 and 26

Granite VSD XE
Page 13/34 Pins 15 and 16

hmmm,

to add to my original post...

So I have a single +/-10v output here - tested its signal and can confirm it ranges correctly from -10 to +10v...

Theory goes for differential inputs...

Hello all,

I have near equal amount of automation gear here that use either single or differential output and input... I'm wondering what the best and/or usual workaround is in the following...

Pulley has been repaired - I bored it out to a larger size on another lathe, then made shim with both the correct ID for the shaft and OD for the new pulley, slotted out the area for a key then made...

CTCtools.biz - collets made in china also - they both arrive and work...

Probably not much use spending top dollar on collets for the spindles discussed here... Unless of course you have a mind to...

(nuts)

Yup,

Hmmm, thing is - its on my lathe - I only have a spare jewellers lathe without a compound rest so taper is out for the time being...

What do you think of this:

:: MOGLICE ::
...

The shaft is an input to a lathe gearbox the belt goes to the motor ... I would have thought it should be quite tight/concentric just to reduce further wear, but its not like at the business end of a...

Thing is it seems you cant set the counts to infinity, just numbers less than the maximum of 2147483647 - which you'd eventually reach

The manual is ambiguous as to what happens at this point - I...

in the ultraware manual it mentions that you can disable the position rollover:

[QUOTE]Disabled: to cause the position variable to
rollover only when it exceeds 2147483647 countsQUOTE]

so with...

ah,

ok - interesting

so my question is now:

can I disable 'position rollover' in an Ultra3000 drive

error E33 would indicate I cant but error but error E02 (I think where the drive has...

shaft under load:

http://farm6.static.flickr.com/5213/5445205183_2b60c3dc8b_b.jpg

not concentric ...

Hello,

So I have a timing belt cog (under tension) with a 13.4mm bore that is fitted to a shaft with a 12.9 OD... With only 15mm or so of surface bearing thats quite a wiggle those dimensions...