Dyna mechtronics DM3000 lathe , mach conversion

[Jonathan]

thanks again mc the encoders a HP heads-6310 021 a s. from what ive read it does use A & B outputs,id forgotten the schematics on page one so hopefully the pin info is in there

This thread on CNCzone says it has A,B outputs and an index pulse with 5V supply voltage, so that's ideal. The second schematic you posted has the connection diagram for the encoder. That's sufficient - so long as you still have the same connector on the encoder and know which is pin 1 (i.e. which way round it goes)? If this guy responds that would help if you don't know which way round.

Edit: Helpful post about these encoders on CNCZone here:

From an 1985 HP databook.


The 5 in 5310 is the size 28 mm diameter encoders. The 3 in 5310 points to ordering info, emitter plate only(?), 0 is a complete kit. The 1 is 3 channel (+index), 0 is no index. The 0 is mechanical configuration, 0.6 mtr flatcable. It must be followed by an option letter for resolution:


C - 100 CPR
D - 192 CPR
E - 200 CPR
F - 256 CPR
G - 360 CPR
H - 400 CPR
A - 500 CPR
I - 512 CPR


additional CPR-codes (6000-series)
B - 1000 CPR
J - 1024 CPR


After this comes a double digit, coding for shaft size, which I leave out for sunday laziness.


Pinout bottom view:


Edit: I see that all spaces, that would make the following clear are eaten up, so I will add for each pin (PIN)
Vcc PIN 2 PIN 1 Channel A
NC or Ground PIN 4 PIN 3 Ground
Ground PIN 6 PIN 5 NC or Ground ---With bottom view here the Connector Notch
Channel B PIN 8 PIN 7 Vcc
Channel Index PIN 10 PIN 9 Vcc


Note: all the Vcc's and Grounds must be connected, they function as noise suppression.
Carel

Just noticed I've got an old (big) DC-motor with a HEDS-6300 encoder on it, so I'll try it when I've got time...

Edit 2:
Found a datasheet for the HEDS-5000 series encoders. I've uploaded it here. From the part numbering mentioned above, it seems that the 6000 series are the same just in a bigger package, so we can probably assume the pinout is the same...check it vs the schematic you posted.

[dazza]

sorry jonathan id totally forgotten about the above post.
Ballscrews fitted,steppers fitted,its almost there.
Attachment 13508
Attachment 13509
Attachment 13510

[dazza]

Ive made a start on the electricals /enclosure (photos will be up soon) and decided to go for the DG4S-16035 positioning DC servo drive and a BRKC-180 braking circuit to power the spindle motor..i had come across a few on the zone using these on there mills with no complaints

im assuming the heds encoder/blue ribbon will need to be rigged up to this DG drive via one of these differential line drivers in the link http://cncdrive.com/Difflinedriver.html.

[dazza]

Had a poke around the spindle motor area took off the wiring cover to reveal the connection block.
the block is printed with he following wire colours to each letter
T1 RED
T2 BLACK
K1 RED
K2 BLACK
A1 WHITE
A1 BLACK
B1 RED
B2 BLACK
.edited i completely missed the pin out info on the back of the lid so will stick below as I couldn't find it on line edited..what are the K1and K2 wires with the T/0 below it ?
SEM MT30 U4-48
.
Attachment 13223
Attachment 13216

second question I have is..
with me using the heds encoder and plugging that into the dc servo drive as the manual instructs,
is the optical sensor that sits on top of the spindle and the tach no longer required??

I don't understand why I would need 3 forms of feedback yet they were all installed as standard when the lathe was in its original state.

[mikeyz3385]

Any new updates with this? I recently purchased a 3000 about 2 months ago and am slowly starting to convert it but in need to some guidance