Spindle Fan M Code

[mick41zxr]

As the title say's, is there a standard spindle cooling fan M Code.
I have assigned the fan to an Output (output 1 currently, also assigned in the wizard) & would like to turn the fan on or off with a command.
Also is there a way to have the fan run time controlled by Acorn PLC is is it best done
with a separate run on timer relay.
Thanks,
Michael

[Gary Campbell]

Try configuring that output as "SpindleBrake" and see how it works for you

[slodat]

I use an interposing relay triggered from SPINFWD and SPINREV. These then switch the spindle vfd FWD and REV signal as well as power up an RS Pro 8966822 off delay timer. It's set at a 5 minute time delay. So, when spindle is started in either direction, fan is started and stays running until after the last time it's stopped. Works well and is automatic.

[cncsnw]

There is not a "standard" one. There is example code in the sample M55 and M56 codes showing how to make them control the SpindleCooling output (by setting and resetting request #31).

[martyscncgarage]

As the title say's, is there a standard spindle cooling fan M Code.
I have assigned the fan to an Output (output 1 currently, also assigned in the wizard) & would like to turn the fan on or off with a command.
Also is there a way to have the fan run time controlled by Acorn PLC is is it best done
with a separate run on timer relay.
Thanks,
Michael

If you can put a temp sensor on the motor you can use it to directly control the relay that the fan motor controls. You would probably not want to control it, rather have it come on at a certain temp and off when the motor cools to that temp. Wouldn't you want the fan to cool the motor after the motor is shut down? Just a thought....

[martyscncgarage]

As the title say's, is there a standard spindle cooling fan M Code.
I have assigned the fan to an Output (output 1 currently, also assigned in the wizard) & would like to turn the fan on or off with a command.
Also is there a way to have the fan run time controlled by Acorn PLC is is it best done
with a separate run on timer relay.
Thanks,
Michael

If you can put a temp sensor on the motor you can use it to directly control the relay that the fan motor controls. You would probably not want to control it, rather have it come on at a certain temp and off when the motor cools to that temp. Wouldn't you want the fan to cool the motor after the motor is shut down? Just a thought....
You can assign it to anyone of the Aux buttons on the VCP. Press one not used and you'll get a message....

[mick41zxr]

Thanks CNCNW,
Found that the m94 /31, m95 /31 will turn cooling fan on & off when assigned in wizard.
Possibly include a run on timer and/or a thermo switch as Marty suggests.
Regards,
Michael

[fusion]

I'm trying to get my spindle fan to come on when the spindle starts, and stay on. When the spindle stops, I want the fan to stay off for a set period of time. I tried this delay off relay. https://www.amazon.com/gp/product/B07CG ... UTF8&psc=1
I was connecting output 7 to it that was triggered by the spindle brake release function. This relay only stays on for the set period of time, then turns off.
Do they make a relay that will stay on as long as the output is high, then stay on for the set period of time, and then turn off?

Thanks!
Mike

[slodat]

I posted a link to the one I used above.

[cncsnw]

Remove the old "SpindleCooling" block from somewhere around line 4100.

Add the following timer definition and code:

Code: Select all

SpindleStopped_T IS T33
; ...
IF SpindleEnableOut_O THEN SET SpindleCooling, RST SpindleStopped_T
IF !SpindleEnableOut_O THEN SpindleStopped_T = SV_MACHINE_PARAMETER_175 * 1000, SET SpindleStopped_T
IF SpindleStopped_T THEN RST SpindleCooling

Set the spindle off-delay time, in seconds, in Parameter 175.