Enable signal for spindle driver

[leon150ts]

Hi, how can I get an enable signal for the spindle driver?
my driver has an enable signal + a signal for Forwar or Reverse rotation,
For Forwar / Reverse I use M3 / M4 but I would like to have an enable signal as for the axes driven with the Reset key

[ger21]

Enable the C axis and use that one?

[leon150ts]

yes, it's a possibility, but I already use axis B and C for Atc,
axis A is free but I would like to use it in the future

[ger21]

Use one of the enables to activate a relay, and run all the drive enables through the relay?

[leon150ts]

ues, that's a good idea too