Solved Axes connected to expansion board won't move

[anagh]

I am using a Duet 3 6HC board with a 3HC expansion board. All axes connected to the main board move and work properly but axes connected to the expansion board do not move. I know the CAN connection is okay (LED is in sync with the main board) and the voltage on the expansion board is okay too. Both boards are using 3.4.0 firmware version (Checked using M115 B1). But the axes still do not move. Here is what I have in the config file:

; Network
M552 S1 P0.0.0.0

; General preferences
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"Setup 1" ; set printer name
G54

; Drives
M569 P0.0 S0 ; physical drive 0.0 goes forwards
M569 P0.1 S1 ; physical drive 0.1 goes forwards
M569 P0.2 S0 ; physical drive 0.2 goes forwards
M569 P0.3 S1
M569 P0.4 S0
M569 P0.5 S0
M569 P1.0 S0
M569 P1.1 S0
M584 X0.0 Y0.1 Z0.2 A0.3 B0.4 C0.5 U1.0 V1.1 ; set drive mapping
M350 X16 Y16 Z16 A16 ; configure microstepping with interpolation
M92 X640.00 Y640.00 Z640.00 A44.44 B240 C20 U240 V20 ; set steps per mm
M566 X900.00 Y900.00 Z500.00 ; set maximum instantaneous speed changes (mm/min)
M203 X2000.00 Y2000.00 Z2000.00 A20000.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z500.00 ; set accelerations (mm/s^2)
M906 X2400 Y2400 Z2400 A1700 B400 C320 U400 V320 I30 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

[Phaedrux]

Is that the full config?

Can you try adding a G4 S5 command to the start of config.g to add a short delay on startup to allow the boards time to startup before the config is executed.

[anagh]

@phaedrux Adding G4 S5 to the beginning of the config file worked. Thank you!