Rigid Tapping Issue <resolved>

[Malachilee]

I am currently setting up my Dyna Myte 3000 for rigid tapping and have encountered a few issues. First, I reviewed the Acorn manual and followed the instructions provided. After that, I checked Tech Bulletin 304 and configured the VFD accordingly. So. the issue I am having is when I program the rigid tapping in Fusion 360 with the "Use feed per Revolution" option turned off, the tool will run the tapping cycle. It just doesn't wait for the spindle to reverse direction before backing out the tool. Please see the video. When I check the "Use feed per Revolution" checkbox, the tool will move to the feed position and just sit there with a "346 Waiting for Spindle direction " error. Which makes me think something is not set up correctly.
If anyone can shed some light on my issue, that would be great!

Thank you,
Lee

[tblough]

The first test is to check if rigid tapping operates correctly when using Intercon. If that does not work, then it is likely a configuration issue. If Intercon works correctly, then it is probably a Fusion setup error.

[suntravel]

You are sure with 50 revs/inch for the Z axis?
MSG log is full of com errors and limits tripped.

Make sure the machine is setup ok before trying to rigid tap.

Uwe

[Malachilee]

The first test is to check if rigid tapping operates correctly when using Intercon. If that does not work, then it is likely a configuration issue. If Intercon works correctly, then it is probably a Fusion setup error.

When I use Intercon, it will move to the feed position and sit there with the "346 Waiting for spindle direction" Message

[suntravel]

if you turn the spindle CW is the rpm display without - ?

Uwe

[Malachilee]

if you turn the spindle CW is the rpm display without - ?

Uwe

My Spindle M3 shows (-) and my M4 shows (+) RPMs

[suntravel]

if you turn the spindle CW is the rpm display without - ?

Uwe

My Spindle M3 shows (-) and my M4 shows (+) RPMs

That is the main problem.

11.4.26 Parameter 34 – Spindle Encoder Counts/Rev
This parameter controls the counts-per-revolution for the spindle encoder. Input from the spindle encoder is required
for the spindle-slaved movements used in the Rigid Tapping cycles. If the encoder counts up when running CW (M3),
the value of this parameter must be positive. If the encoder counts up when running CCW (M4), the value of this
parameter must be negative.

Uwe

[Malachilee]

if you turn the spindle CW is the rpm display without - ?

Uwe

My Spindle M3 shows (-) and my M4 shows (+) RPMs

That is the main problem.

11.4.26 Parameter 34 – Spindle Encoder Counts/Rev
This parameter controls the counts-per-revolution for the spindle encoder. Input from the spindle encoder is required
for the spindle-slaved movements used in the Rigid Tapping cycles. If the encoder counts up when running CW (M3),
the value of this parameter must be positive. If the encoder counts up when running CCW (M4), the value of this
parameter must be negative.

Uwe

Is there a parameter that will invert this? Or do I need to change the wiring on the encoder?

[suntravel]

????

I posted the description of Paramater 34 from the manual.

Set the value in P34 negative if it is now positive.

Uwe

[Malachilee]

????

I posted the description of Paramater 34 from the manual.

Set the value in P34 negative if it is now positive.

Uwe

Sorry for the confusion; I wasn't sure you meant to change 4000 to -4000. Thanks for clarifying, that fixed the issue.