1HCL: steppers not moving

tylersuard

@dc42 Also, How do I find out what values to set for M569.1 S? What current should I use for M906?

tylersuard

@dc42 I did not find these instructions anywhere in the documentation. Would you mind giving me the exact commands to type in to get my 1HCLs, encoders, and steppers all working?

JoergS5

@tylersuard said in 1HCL: steppers not moving:

M569.1 S? What current should I use for M906?

hello, you can find documentation in the G-Code page:

M569.1: https://docs.duet3d.com/User_manual/Reference/Gcodes#m5691-stepper-driver-closed-loop-configuration optional parameter for steps/mm of the stepper

M906 the current of the stepper. This is stepper specific, so you need to look up your stepper documentation: https://docs.duet3d.com/User_manual/Reference/Gcodes#m906-set-motor-currents
and https://docs.duet3d.com/User_manual/Connecting_hardware/Motors_configuring#setting-motor-currents

dc42

@tylersuard said in 1HCL: steppers not moving:

Thank you for your help @dc42 . I am using the Duet magnetic encoder.

I am getting this error when trying to run the commands:

M569.7 P50.0 C"brake" V24
Error: M569.7: Unknown pin name 'brake'

Does your motor actually have a brake? if it doesn't, leave that line out.

tylersuard

@JoergS5 Thank you. The documentation says:
Tn Encoder type: 0=none (default), 1=linear quadrature encoder plus Duet3D magnetic shaft encoder (RRF 3.5 only), 2=quadrature motor shaft encoder, 3=Duet3D magnetic motor shaft encoder using AS5047D (RRF 3.5 only)

I am only using the Duet magnetic motor shaft encoder. I do not know what the AS5047D means. Should I set this parameter as T3?

tylersuard

This post is deleted!

tylersuard

@dc42 @JoergS5 thank you for your help. For anyone finding this later, the commands to set up a Duet3Mini 5+ with magnetic Duet encoders are:

; Configure EXP1HCL as the X motor and pretend to home the axis
M584 X50.0
M569.1 P50.0 T3 S200 ; configure magnetic encoder (try T1?)
M906 X2500 ; set motor current
M569 P50.0 D2 ; set open loop mode
M17 X
G92 X0 Y0 Z0 ; pretend that all axes have been homed
M203 X10800.00
M201 X3000.00

; Switch to closed loop and calibrate
G4 P300
M569 P50.0 D4
G4 P300
M569.6 P50.0 V2

; Configure EXP1HCL as the Y motor and pretend to home the axis
M584 Y51.0
M569.1 P51.0 T3 S200 ; configure magnetic encoder (try T1?)
M906 Y2500 ; set motor current
M569 P51.0 D2 ; set open loop mode
M17 Y
G92 X0 Y0 Z0 ; pretend that all axes have been homed
M203 Y10800.00
M201 Y3000.00

; Switch to closed loop and calibrate
G4 P300
M569 P51.0 D4
G4 P300
M569.6 P51.0 V2

JoergS5

@tylersuard said in 1HCL: steppers not moving:

AS5047D

this is a chip name. Every time you see such a name with some letters and numbers, it's probably a special chip which you can search for, in this example https://ams.com/as5047d . You can check the documentation of your encoder which chip it uses or you look onto the encoder board whether one of the chips has a name. If your encoder is accessible and the board visible, you can also make a snapshot and post it to get help. If there is a version number on the board, this is also valuable information.

This page is probably interesting also: https://github.com/Duet3D/Duet3-Magnetic-Encoder
together with the links mentioned in the starting readme page.

dc42

@tylersuard said in 1HCL: steppers not moving:

I am only using the Duet magnetic motor shaft encoder. I do not know what the AS5047D means. Should I set this parameter as T3?

Yes, T3 is correct for the Duet3D magnetic encoder, unless you also have a linear encoder on the axis.

tylersuard

@JoergS5 Thank you, this is very helpful

tylersuard

@dc42 Thank you for your help! I could not have done it without you.

dc42

@tylersuard is it working now?

tylersuard

@dc42 Yes, the steppers are working now, much quieter than before too.

dc42

@tylersuard thanks, I'll mark this as solved.

I have written a draft closed loop motor tuning guide for RRF 3.5 at https://docs.duet3d.com/User_manual/Tuning/Duet_3_1HCL_tuning#manual-tuning-when-using-reprapfirmware-35x.