Quote Originally Posted by EddyCurrent View Post
In my Leadshine manual it says, High level for enabling, low level for disabling. Usually left unconnected (enabled)

So the default state you might say is 'enabled', I expect that rather than floating, the input has a pull-up resistor to keep it 'high'
Thanks' for that it saved me replying I do use my enables but as you say it is not necessary. ..Clive