so now it's working perfectly with 3 speed
I've changed the first setting in parameter 12, which was NOT SEL, i didn't know at first I had to choose which input were use, so I took DI1-2-3.
Number one is use for the start button DI 1
my second speed is at DI 2
and third at DI 3
it's a combination of input that apply in this case
when the drive is in ready mode, and the start button not pushed, its says on the screen minimum speed 1270 rpm
when I pushed start, it activates DI-1, so the drive get in constant speed 1
if i push my button to the left, in activated DI-2, the combination activated constant speed 3, and if the button is in DI-3, it activated constant speed 5
so well it works well , thanks for all your help
Mathieu