thank you @dc42 and @nhof, problem solved.
i have changed from
...M574 X1 Y2 Z1 S1 ; Set active high endstops
to
...M574 X1 Y1 Z1 S1 ; Set active high endstops

i'm really happy

when i send G28 Y the bed move to Y endstop but after homing the bed dont move to Y+, move only yet to Y-, to Y endstop.
On DWC, after home Y, Y head positio is 300.

this is my homeY.g

G91 ; relative positioning
G1 S1 Y-305 F1800 ; move quickly to Y axis endstop and stop there (first pass)
G1 Y5 F600 ; go back a few mm
G1 S1 Y-305 F360 ; move slowly to Y axis endstop once more (second pass)
G90 ; absolute positioning

thanks

hi,
i have the proble with my new duet for prusa I3, when i write G28 X the homing is correct, when writing G28 Y homing failed. on DWC X is marked 0 and Y is marked 300... why is?
this is my config.g

...........
; Drives
M569 P0 S0 ; Drive 0 goes back
M569 P1 S1 ; Drive 1 goes forwards
M569 P2 S1 ; Drive 2 goes forwards
M569 P3 S1 ; Drive 3 goes forwards
M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
M92 X80 Y80 Z3200 E135 ; Set steps per mm
M566 X900 Y900 Z12 E120 ; Set maximum instantaneous speed changes (mm/min)
M203 X6000 Y6000 Z180 E1200 ; Set maximum speeds (mm/min)
M201 X1000 Y1000 Z250 E1000 ; Set accelerations (mm/s^2)
M906 X800 Y1200 Z800 E1000 I30 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 X0-5 Y-5 Z0 S1 ; Set axis minima
M208 X215 Y300 Z210 S0 ; Set axis maxima

; Endstops
M574 X1 Y2 Z1 S1 ; Set active high endstops
...............

thanks for helping me
sorry for my bad english