Configuring NEMA 23 on a DUET 2 WIFI
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Hi there,
I'm currently building a CNC with a DUET 2 WIFI and NEMA 23 Steppers (23HD86001Y-21B).
I've tested most of the features with NEMA 17 and all worked fine.
Switching to NEMA 23 (with relevant settings (a priori) Steppers are quiet noisy, with a "Phase A might be disconnected" in addition. Moreover if move is above 5cm direction of move is lost, and stepper behavior becomes random, going whatever direction "it decides".
I've calcultated on RepRapFirmware NEMA 23 settings thus applying them as advised.
I clearly did not succeed in several attemps to vary motor settings parameters.
I'm a bit lost... The 4 NEMA's behave the same way.
DUET 2 is configured as follow :
; Configuration file for Duet WiFi (firmware version 3.3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.3.15 on Sat Jan 14 2023 17:54:34 GMT+0100 (heure normale d’Europe centrale); General preferences
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"CNC Musset" ; set printer name; Network
;M551 P"Cylogie@2015" ; set password
M552 S1 ; enable network
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet; 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 X0:1 Y2 Z3 ; set drive mapping
M350 X16 Y16 Z16 I1 ; configure microstepping with interpolation
M92 X2560.00 2560.00 Z2560.00 ; set steps per mm
M566 X100.00 Y100.00 Z25.00 ; set maximum instantaneous speed changes (mm/min)
M203 X420.00 Y420.00 Z140.00 ; set maximum speeds (mm/min)
M201 X50.00 Y50.00 Z20.00 ; set accelerations (mm/s^2)
M906 X3000 Y3000 Z3000 I30 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout; Axis Limits
M208 X0 Y0 Z0 S1 ; set axis minima
M208 X780 Y660 Z45 S0 ; set axis maxima; Endstops
M574 X2 S1 P"xstop" ; configure switch-type (e.g. microswitch) endstop for high end on X via pin xstop
M574 Y2 S1 P"ystop" ; configure switch-type (e.g. microswitch) endstop for high end on Y via pin ystop
M574 Z2 S1 P"zstop" ; configure switch-type (e.g. microswitch) endstop for high end on Z via pin zstop; Z-Probe
M558 P0 H5 F120 T6000 ; disable Z probe but set dive height, probe speed and travel speed
M557 X15:215 Y15:195 S20 ; define mesh grid; Heaters
M140 H-1 ; disable heated bed (overrides default heater mapping); Fans
M950 F0 C"fan0" Q500 ; create fan 0 on pin fan0 and set its frequency
M106 P0 S0 H-1 ; set fan 0 value. Thermostatic control is turned off; Emergency stop
M950 J1 C"e1stop"
M581 P1 T0 S1 R0; Tools
; PanelDue
M575 P1 S1 B57600; Custom settings are not defined
; Miscellaneous
M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power lossThx in advance for your support,
Stéphane (Paris, France)
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@Stef64Fr said in Configuring NEMA 23 on a DUET 2 WIFI:
(23HD86001Y-21B
the datasheet says 3 A for the stepper, the setting for M906 shall be about 60 to 80% of that, so a setting of about 1800 to 2400 would be the value to be set, because Duet 2 Wifi has a maximum of 2.4 A. I would make sure the board is cooled enough. (probably the backside of the board needs to be cooled)
Please see https://docs.duet3d.com/User_manual/Connecting_hardware/Motors_configuring section Setting motor currents
I would also check that the wiring is correct in advance, e.g. checking the pairwise wiring. There is also documentation how to do this (measuring with an ohmmeter or by hand). Maybe coloring of all steppers are different than expected. Please see https://docs.duet3d.com/User_manual/Connecting_hardware/Motors_connecting
section Using the internal drivers -
Hi Joerg,
Many thanks for your quick answer.
I've tested the 2400mA. Does not change much. Behaviour remains the same. Maybe a little bit less noisy.
About wiring, you are right. My steppers do not respect standard colors. That was one of the first checks I've done so far.
Carrying on with the reading of articles you've advise me to do so.
Have a nice day,
Stéphane
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@Stef64Fr good luck to find the reason. I hope you'not damaged your board, you can make M122 to check the driver status with steppers where you know they work. I've no other idea what you can check.
