when i re-start a cut after feed hold does the machine wait till the spindle is up to the programmed speed before starting to feed?
If not this seems like it could lead to a tool break after a feed hold in certain situations.
i'm referring to the reduced spindle speed after opening the door if your machine is set up this way,
thanks
joev

It seems to me that the spindle does spin up to full speed before the feed starts.

If you are worried about it not reaching speed after you have done a FEEDHOLD push SINGLE BLOCK. Then when you do CYCLE START it does spin up first because the feed does not start until you do a second push. But remember to turn SINGLE BLOCK off first.

EDIT: missed a word

or, just go into your setting page, go down to #51, turn off the door interlock and turn it back on when the job has been proven out, or when the boss comes buy.

If the MTB did it right, the machine should wait for the up-to-speed signal from the spindle drive after a M3/M4, before any further commands are processed.
Normally a feed hold by the F.H. PB should only stop the servo's.
Al.

If the MTB did it right, the machine should wait for the up-to-speed signal from the spindle drive after a M3/M4, before any further commands are processed.
Normally a feed hold by the F.H. PB should only stop the servo's.
Al.

FEED HOLD by itself only stops the feed, the spindle stops on FEED HOLD if the door is opened. This can happen any place in a program so the M3/M4 are not going to be present.

It is possible to prevent this by over riding the door interlock but that is risky because then it is possible to start a program running with the door open. If you have never ever pushed the wrong button on the control panel and know you will never push the wrong button do it this way. I am fallible and have pushed the wrong button and don't like a machine kicking into action when my head is inside looking at something.

My way with SINGLE BLOCK is the safest and most convenient.

parameter 209 spindle nowait if on it will not wait for the spindle to come up to speed it will ramp up while it is rapiding to the location

that's the answer I was looking for, thank you.
joev