[kra]

ok
so I have an old thermwood c50 (1987)that I want to retrofit with kflop/kanalog
I just got the kflop/kanalog boards in and really don't know where to start
I already have a license of Mach3 so will probably use it

x axis has 2 dc servos y has one and I have 2 z's + 2 air drills
all servos are the same baldor mte-4535-special 40 lb. in. max speed 4500 rpm max voltage 180 vdc 16.4 amps constant 70.2 amps peak
tach 7.0 encoder 625 L

I will be using my existing amps and power supply

encoders have +5v, common, shield, phase-A, and phase-B
tach has red and black wire
arm. has red and black wire

not sure where to start and don't want to burn anything up

anyone have an example of what connects to where? thanks

[TomKerekes]

Hi Kra,

Do you have any motor amplifiers?

Regards

[kra]

yes
using existing motor amplifiers if I can (west amp setup with 5 Baldor amps) I have 2 motors/amps for x axis and 1 for y axis and 2 separate z spindle axis plus 2 air drills
they work and already connected to motors and wiring harness comes from these to old control with db9 connectors that plug into old control board
I have a wiring schematic for existing setup just not sure where to hook what on new kanalog board
thanks for any help.

[kra]

db9 has the following wires
red/white=+5v
black/white=comm.
white=g
green/white=g
yel/white=phase b
green=phase a
black goes to amp
white goes to amp
red goes from tach to amp
black goes from tach to amp
then another red and black from servo arm to west amp dc power supply

[TomKerekes]

Hi Kra,

You will need a clearer description of what the signals are and where they go. Basically you are looking for the +/-10V analog input to the Amplifier. If you apply a small voltage (ie 1.5V battery throught a 1K ohms resistor) it should drive the motor 15%. And reversing the battery should drive the opposite direction.


HTH
Regards

[Al_The_Man]

(west amp setup with 5 Baldor amps)
I have a wiring schematic for existing setup just not sure where to hook what on new kanalog board
thanks for any help.

Why not post the schematic, are they Westamp or Baldor drives?
Al.

[kra]

the individual drives are baldor
the schematics are on several 24x36 sheets or blueprints
I will see if I can scan part of a sheet to show motor to amp wiring

[kra]

here is a typical schematic in pdf and jpg format
hope it is readable
appreciate the help

[Al_The_Man]

I prefer a minimum of 1000 count encoder, the 625 will give you a resolution of 625 x4 = 2500 p/rev. also differential type is better for noise resistance.
The dwg does not show the ±10vdc command input.
You will need to locate this shielded pair from controller to drive.
Or maybe that is 7 & 8 of the left hand plug?
Al.

[kra]

I called Baldor and they sent me the attached pdf of a similar setup that they currently make.
He said it should have the same wiring as my older drives so it should be a big help

[Al_The_Man]

If you notice from the description, if it has the same options as your amps, the drive can be used in the torque mode, I generally prefer this method if it is available, in this case the tach is not used.
Al.

[kra]

thanks al, it appears that my drives are basically the same. they were made in 2005 so not too old
now that I should be able to figure out what wires are doing what from my motors through drives is there any drawing available to show the best way to attach everything to kanalog

[Al_The_Man]

Maybe Tom has some generic style prints for analogue control he can post or send?
Al.

[TomKerekes]

Hi Kra,

The basic connects required are from the Kanalog DAC outputs to the Amplifier inputs. And from the Encoders back to the Kanalog differential inputs.

Kanalog requires differential encoder signals (A+ A- B+ B-). You encoder signals appear to be single ended (only A and B). There are cable drivers available that can convert to differential such as:

US Digital | Products » Interfaces » Encoder » Cable Drivers

It looks like Figure 2-3 in the manual you uploaded shows where to connect the Kanalog DAC to your Amplifiers. Kanalog would be the "Machine Control".

There is a file in our Yahoo Group from a customer who did a similar conversion with Kanalog. See: the file Kanalog Connections.pdf

http://tech.groups.yahoo.com/group/DynoMotion/files/

Regards

[kra]

thanks Tom
starting to make sense now