Need Brain to fire from M5 signal

[please no smoke]

I need a Brain to fire my dynamic spindle brake for a second or two when an M5 is issued through mach. Can anyone help me with the code?

Thanks

[stirling]

Can't help you with a brian - never had need of one - how about a simple mod to the m5 macro? don't know your system but assuming your brake is applied simply by a mach output pin then something along the lines of:

'M5 macro
doSpinStop() 'stop spindle
activateSignal(OUTPUT?) 'apply brake on output number ? (you choose)
while isMoving()
  sleep 10
wend
sleep 2000 'apply brake for 2 seconds
deactiveSignal(OUTPUT?) 'release brake

[please no smoke]

Stirling,

That's a good idea. I might have tried that if my VB skills were better. I will use it.

Thanks

[please no smoke]

I had to change the signal wording for my output, but it works. The only problem is that it fires when mach estops. So it's kind of going off a lot when I'm messing around. Maybe there is a specific signal that can be used instead of the m5?

[stirling]

can you post your modified code?

[please no smoke]

The code you had was ok. I had to replace the activate/ deactivate signal with....

SetMasterOutput(12, 1)
SetMasterOutput(12, 0)

[stirling]

If I undertsnad you correctly the problem is that the brake is being applied even when the spindle wasn't actually on at certain times. The code below (untested) might give you an idea. It only fires the brake if the spindle was actually on. There may be better ways of doing this.

'M5 macro
Const SpindleOnLED = 11 '(CW Or CCW)
Dim spindleOn As Boolean

spindleOn = getOEMLED(SpindleOnLED)

doSpinStop() 'stop spindle

'if spindle on then apply brake
If spindleOn Then
  SetMasterOutput(12, 1) 'brake on
  While isMoving()
    sleep 10
  Wend
  sleep 2000 'apply brake for 2 seconds
  SetMasterOutput(12, 0) 'brake off
End If

(It should go without saying that E-stop should not rely on this or any other software. i.e. as well as everything else, the spindle brake should be applied by hardware following an e-stop too.)

[please no smoke]

Looks great. I will give it a try. Thank you.