1) Have I missed something in my setup? (configuration below)
Does the LED stay on with the Printer cable disconnected from the
PC? If so there may be a problem on the card.
If not then do you have the proper step pin mapped and IS IT ACTIVE
LOW (checked).
2) Am I using the wrong parallel cable? I recently purchased a
Belkin Pro Series IEEE 1284A-A Switchbox Cable (Universal
Application) - It is listed as bidirectional / high speed.
Should work just fine.
3) Do I need to set something in the Configure>Motor Tuning section
to make this test work?
For testing, you probably need to lower your step frequency (the
number of steps per inch to some really low number like 10 or even
5. Normally the steps are so fast you will never see them happen on
the LED's. If the pin is not set to active low the LED will stay ON
most of the time and only flash OFF during a step transition.
Any suggestions would be greatly appreciated!
To check the Sound Logic Card (and your setup of the pins)
temporarily map the Y Direction pin to the Step input that is in
question. It should turn off and on as you change direction. If it
does, its working and you have a pin configuration (mapping) problem.
Bob Jacoby
Florida
Configuration:
Printer Port Setup and Axis Selection Page:
Port 1
X Axis Enabled
Y Axis Enabled
Output Signals Selection Page:
Charge Pump Safety Line
Input Signals Selection Page:
HomeX
HomeY
Printer Port Output Pins:
X Axis Step 2
X Axis Direction 6
Y Axis Step 3
X Axis Direction 7
You mean "Y Axis Direction 7" here; correct?
Charge Pump Safety 17
All pins are assigned to port 1 and are set "low active"
Printer Port Input Pins:
HomeY 12
HomeX 11
Emergency Stop 10
All pins are set "low active"
If you like the MACH2 SL card you will appreciate the up-coming THC
cards for Torch Height Control. Jim has taken my design and added
some features (like the added buffers and opto isolators to support a
second parallel port).
Tom C
