SOLVED motor phase A may be disconnected help a newby out
Im in pthe process of commisioning my new core XY build, I've never used duet electronics before and im having an issue getting the motors running. When homing either the X or Y axis the tool head will move 10mm or so before stopping and the board returns
G28 Y Warning: motor phase A may be disconnected reported by driver(s) 2 Warning: motor phase B may be disconnected reported by driver(s) 2
im sure its somthing im doing wrong, the fact that im getting a bit of movement is heartning.
im using e3d's 'high torque motors' on the x and y.
- Step Angle: 0.9°
- Rated Current: 1.68A
heres the relevent part of my config.g:
; Drives M569 P0 S1 ; physical drive 0 goes forwards M569 P1 S1 ; physical drive 1 goes forwards M569 P2 S1 ; physical drive 2 goes forwards M569 P3 S1 ; physical drive 3 goes forwards M584 X0 Y1 Z2 E3 ; set drive mapping M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation M92 X200.00 Y200.00 Z400.00 E420.00 ; set steps per mm M566 X900.00 Y900.00 Z60.00 E120.00 ; set maximum instantaneous speed changes (mm/min) M203 X6000.00 Y6000.00 Z180.00 E1200.00 ; set maximum speeds (mm/min) M201 X100.00 Y100.00 Z20.00 E250.00 ; set accelerations (mm/s^2) M906 X1600 Y1600 Z1600 E800 I30 ; set motor currents (mA) and motor idle factor in per cent M84 S30 ; Set idle timeout
System is running on 24v, Anyone know what i might be doing wrong? TIA
Forgot to say im using a duet2wifi firmware ver 3.1.1
jay_s_uk last edited by
have you wired the cables yourself or are you using the cables that came with the motor?
cables came with the motors, the small ammount of movement i am getting is in the correct direction when homing.
Check your motor phases are paired correctly and that the crimps are good.
Driver 2 is the one marked Z. There are two output connectors for that driver, connected in series. If you have only one Z motor, do you have 2 jumpers in the second Z motor connector? If it's a genuine Duet, it should have been supplied with those jumpers already fitted.
solved: incorectly wired endstops... i knew it would be somthing silly, thanks all the same.
Nellor last edited by Nellor
Im running the current version 3.2-RC2 (2020-12-24) at a Duet 3 6HC
When homing the Y-Axis I get a warning:
Warning: motor phase A may be disconnected reported by driver(s) 2
Warning: motor phase B may be disconnected reported by driver(s) 2
What does the number 2 means? Thought it indicates the corresponding drivers in that case number 1.
I only connected Y at the Driver_1 connector and the corresponding endstop.
M569 P0.0 S0 ; physical drive 0.0 goes backwards
M569 P0.1 S0 ; physical drive 0.1 goes backwards
M569 P0.2 S1 ; physical drive 0.2 goes forwards
M569 P0.3 S0 ; physical drive 0.3 goes backwards
M584 X0.0 Y0.1 Z0.2 E0.3 ; set drive mapping
What wonders me even more is if I try to Home X - of course no motor/endstop is connected to X I get the same warning.
A Former User last edited by A Former User
What does the number 2 means?
probably best to start a new thread rather than continuing someone elses solved thread.
drivers are usually
edit: d'oh .. the duet3, unlike they duet 2, the numbers match the pcb silk screen so just refer to the board and see what you've connected to driver2.
Nellor last edited by
I posted that here as maybe something is wrong with the number indication at the warning where DC42 assumed the thread opener is talking about Z - I assume he never talked about z axis...
With your explanation it makes even more no sense with the warning.
I will delete or shift the post if it is a big problem.
A Former User last edited by
its not a problem as such; its just not easy for others to relate to a solved topic with a new question, and notifications go to everyone else, but not necessarily you etc.
Nellor last edited by Nellor
Ok, got it... will delete or move it.
I found out whats the reason of getting it when I Home Y.
- If nothing else is wired besides the Y-Axis you will get all the time this warning. So i assumed it must be Y related even showing Z.
- If you don't know that a Y movement results also in a short Z move/lift you end up with not understanding whats going on...
- In my case even a Duet Maestro connected before at this build stage without warning.
-> Hooked up also a Z Motor and the warning is gone.
@Nellor Your homing file probably has a Z lift.