HY VFD DCM connection

[dazp1976]

The fact it's not the best idea.

Question. Talking of switching drive directions:
Servo drive. I'm using a small opto module to switch the digital input on/off for cw/ccw - m3/m4.
It's 5v in 24v out direct connected to uc300eth port #5. Works great, however.
What do you think about using the cw/ccw inhibit along with it as an extra measure?. (more just because it can maybe).
So:
ccw=on - cw=inhibit. M3.
cw=on - ccw=inhibit. M4.
I'd use the opto module as a series connection to 2 outputs M3+CWL, M4+CCWL.

Worth bothering or not?.
Thnx.

[JAZZCNC]

Question. Talking of switching drive directions:
Servo drive. I'm using a small opto module to switch the digital input on/off for cw/ccw - m3/m4.
It's 5v in 24v out direct connected to uc300eth port #5. Works great, however.
What do you think about using the cw/ccw inhibit along with it as an extra measure?. (more just because it can maybe).
So:
ccw=on - cw=inhibit. M3.
cw=on - ccw=inhibit. M4.
I'd use the opto module as a series connection to 2 outputs M3+CWL, M4+CCWL.

Worth bothering or not?.
Thnx.

For what purpose.? I see none as it can only spin in one or the other direction never both together so no need. And if the servo is clever enough then it would throw either a fault or inhibit itself if both inputs become active at the same time.

I'm guessing this is for a spindle drive.? In which case, if your hell bent on using the inhibits use them when changing tools either via a switch or on-screen button.!

[dazp1976]

I'm guessing this is for a spindle drive.? In which case, if your hell bent on using the inhibits use them when changing tools either via a switch or on-screen button.!

Yes, spindle.
I didn't think it was worth the bother.
Thought I'd ask the pro anyway.

The tool change idea sounds a good one.
Ta.