Hello Guest it is August 25, 2019, 11:50:51 PM

Author Topic: Denford Orac 8 station turret  (Read 25699 times)

0 Members and 1 Guest are viewing this topic.

Offline berty

*
  •  74 74
    • View Profile
Re: Denford Orac 8 station turret
« Reply #30 on: February 22, 2011, 07:24:57 AM »
will have a go

Offline Hood

*
  •  25,849 25,849
  • Carnoustie, Scotland
    • View Profile
Re: Denford Orac 8 station turret
« Reply #31 on: February 22, 2011, 07:28:39 AM »
Ok so you are feeding the optos with 5v? Do you have a wiring diag of the turret so I can see?

Looks like from your results it is all you need but a diag would be good as obviously there is a motor that will rotate and need to know how that works.

Hood

Offline Hood

*
  •  25,849 25,849
  • Carnoustie, Scotland
    • View Profile
Re: Denford Orac 8 station turret
« Reply #32 on: February 22, 2011, 09:20:09 AM »
Ok I found the wiring on my computer, must have saved it the last day.
So you are putting 5v in on red and connecting green and yellow to the 0v of your supply?
You are reading the voltages above by measuring between mauve and green, blue and green and white and green?
Hood

Offline Hood

*
  •  25,849 25,849
  • Carnoustie, Scotland
    • View Profile
Re: Denford Orac 8 station turret
« Reply #33 on: February 22, 2011, 09:22:03 AM »
Oh another thing, is there a relay connected to the motor? If so what type?

Hood

Offline berty

*
  •  74 74
    • View Profile
Re: Denford Orac 8 station turret
« Reply #34 on: February 22, 2011, 05:46:55 PM »
Hi
I was measuring them using the ground on bob for black multimeter lead and then using the red from multimeter in turn on the mauve , blue  and white always keeping black lead from meter on the gnd on bob

The photo earlyer on in thread shows the harness from the tool changer it is the one in the ribbed black sleeve not the one nearest my hand

the two wires that go to the motor are black and brown.

the relay is a bestat BT-125 391k0  12v coil

It has 8 pins on it two for the 12v coil, and two wires going to motor and one 12v and one 24v on the other two pins have been linked across to each other

bert

 

Offline Hood

*
  •  25,849 25,849
  • Carnoustie, Scotland
    • View Profile
Re: Denford Orac 8 station turret
« Reply #35 on: February 22, 2011, 06:19:32 PM »
And the red wire I presume is getting fed from the BOBs 5v?

Sounds like your relay is putting 12v into the motor to hold it and then when indexing you energise the relay, it swaps to 24v and reverses the polarity thus making it rotate the other way. Have you got the 12v and 24v supplies hooked up?

What inputs are each of the sensors wired to?

You will need a relay to switch the 12v relay, does your BOB have one?
Hood

Offline berty

*
  •  74 74
    • View Profile
Re: Denford Orac 8 station turret
« Reply #36 on: February 22, 2011, 06:33:18 PM »
Hi
I have come across a drawing that I was sent a wile ago it now makes a bit more sense it is from GSM SYNTEL LTD Drawing number S1938

It shows the three internal tracks and auxiliary codes for desired tool setting

also a hand written program on it but I think it may be referring to an original denford setup,   all aux and dwell have an arrow pointing at them infront

    Aux      out
   a  b  c  d
   1  0  0  0
  dwell
  3 secs

   Aux in
  e  f  g  h*
  1  1  1  1    -for tool number 1
  
  Aux out
  a  b  c  d
  0  0  0  0
 
note * H input always at 1

Track       wire   ref   tool 1  tool 2  tool 3   tool 4   tool 5    tool 6   tool 7   tool 8
outer       blue    e       1        1         0         0           1          1        0         0
middle     white   f       1        1         1         0           0          0        0         1
inner       mauve  g      1        0         0         0           0          1         1        1
bert






Offline berty

*
  •  74 74
    • View Profile
Re: Denford Orac 8 station turret
« Reply #37 on: February 22, 2011, 06:40:03 PM »
yes red+5v from bob

nothing wired up yet been using a 12v battery on bench just to get it moving , Yes it should advance at speed with 24v and reverse slowly using 12v onto ratchet where it will stay stalled with 12v holding it against ratchet

Bob does not have a relay fitted to it I thought it may possibly work on +5v as previous guy had it working will need to test this though

Offline Hood

*
  •  25,849 25,849
  • Carnoustie, Scotland
    • View Profile
Re: Denford Orac 8 station turret
« Reply #38 on: February 22, 2011, 06:46:57 PM »
if its a 12v coil then its not going to work great on 5v.
Another relay would dothough, you could get one with 5v coil and have 12v on the contacts to switch the other one.
Hood

Offline berty

*
  •  74 74
    • View Profile
Re: Denford Orac 8 station turret
« Reply #39 on: February 22, 2011, 07:06:45 PM »
Er, yep your right it won't switch on only 5v it sounded like it was having a good go at it, worth a try
I will have to get a relay to either switch the other relay or get one that does the same but with 5v coil

Anyway it sounds all good to me so far

This must prove that some where in all the old wiring there is the relay I need just need to find it

Many thanks for your help
bert