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    What is the best way to destroy the Duet2 motor driver?

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    • kotuo
      kotuo last edited by kotuo

      Hello
      I have two Duet2's.
      But I have destroyed two Duet2's.
      In both cases the TMC2660 has been destroyed.
      The error message that comes up is this

      Warning: motor phase A may be disconnected reported by driver(s) 2
      Warning: motor phase B may be disconnected reported by driver(s) 2

      It appears in X, Y and Z.
      I can move +/-50,10,1
      but I can't move +/-0.1 anymore.
      I don't think there is a problem with the cable.
      I have used a jumper wire to check.
      I don't know what I have done to destroy the Duet2.
      Please let me know what you think.

      jay_s_uk A Former User 2 Replies Last reply Reply Quote 0
      • jay_s_uk
        jay_s_uk @kotuo last edited by

        @kotuo that doesn't mean the driver has been destroyed, not yet anyway.
        It typically is a wiring issue.
        What motors are you using? Have you confirmed the wiring of the phases of the motor are correct?
        https://duet3d.dozuki.com/Wiki/Choosing_and_connecting_stepper_motors#Section_Identifying_the_stepper_motor_phases

        Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

        kotuo 1 Reply Last reply Reply Quote 0
        • kotuo
          kotuo @jay_s_uk last edited by

          @jay_s_uk Thank you for your reply!
          I have checked the phase using a jumper wire.
          20210611_193601-min.jpg
          I have used this method to connect the motor so that the torque is applied.
          getting the following error messages from all the motor drivers.
          Warning: motor phase A may be disconnected reported by driver(s) 2
          Warning: motor phase B may be disconnected reported by driver(s) 2

          jay_s_uk 1 Reply Last reply Reply Quote 0
          • jay_s_uk
            jay_s_uk @kotuo last edited by

            @kotuo do you have the part number for the motor?

            Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

            kotuo 1 Reply Last reply Reply Quote 0
            • kotuo
              kotuo @jay_s_uk last edited by kotuo

              @jay_s_uk Thank you for your reply!
              Here are some pictures of the motors we use
              20210611_212437.jpg
              20210611_212449.jpg
              20210611_212505.jpg
              Top is Z-axis
              In the middle is the X.Y axis
              The bottom is the extruder

              Veti 1 Reply Last reply Reply Quote 0
              • Phaedrux
                Phaedrux Moderator last edited by

                Are you getting those errors from all drivers, or just driver 2?

                If you move the motor and wiring from driver 2 to a different driver does the error move with them? If you move a motor and wiring that works on another driver to driver 2 does it also give the error there?

                Please post your config.g and the results of M122 and M98 P"config.g"

                Do you know the max rated motor current for your motors?

                Z-Bot CoreXY Build | Thingiverse Profile

                kotuo 1 Reply Last reply Reply Quote 0
                • Veti
                  Veti @kotuo last edited by

                  @kotuo

                  check the wiring on the plug with the duet connector
                  https://d17kynu4zpq5hy.cloudfront.net/igi/duet3d/vqBUAZPsxMC5tRgt.huge

                  the colour order is R B G B

                  1 Reply Last reply Reply Quote 0
                  • JuKu
                    JuKu last edited by

                    I don’t have enough experience on Duet, but in general, the best way to kill the driver chip is to connect/disconnect the cable with motor power on. A broken cable or bad connector with intermittent connection equals to disconnection.

                    1 Reply Last reply Reply Quote 0
                    • A Former User
                      A Former User @kotuo last edited by A Former User

                      This post is deleted!
                      1 Reply Last reply Reply Quote 1
                      • kotuo
                        kotuo @Phaedrux last edited by

                        @phaedrux Thank you for your reply.
                        I am getting the following error statement for all motors when I do a home-all.
                        Warning: Motor phase A may be disconnected as reported by driver 2.
                        Warning: Motor phase B may be disconnected as reported by driver 2.
                        The extruder drivers (E0, E1) have not been checked.
                        Results of M122 investigation

                        M122
                        === Diagnostics ===
                        RepRapFirmware for Duet 2 WiFi/Ethernet version 3.2.2 running on Duet WiFi 1.02 or later
                        Board ID: 0JD0M-9X6JA-JUNSN-6JKDJ-3S86N-TTRRU
                        Used output buffers: 3 of 24 (11 max)
                        === RTOS ===
                        Static ram: 23460
                        Dynamic ram: 73360 of which 24 recycled
                        Never used RAM 15236, free system stack 191 words
                        Tasks: NETWORK(ready,173) HEAT(blocked,308) MAIN(running,467) IDLE(ready,20)
                        Owned mutexes: WiFi(NETWORK)
                        === Platform ===
                        Last reset 00:00:30 ago, cause: software
                        Last software reset at 2021-06-12 12:40, reason: User, GCodes spinning, available RAM 15200, slot 1
                        Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0041f000 BFAR 0xe000ed38 SP 0x00000000 Task MAIN Freestk 0 n/a
                        Error status: 0x00
                        Aux0 errors 0,0,0
                        MCU temperature: min 35.4, current 36.1, max 36.5
                        Supply voltage: min 23.8, current 24.0, max 24.2, under voltage events: 0, over voltage events: 0, power good: yes
                        Driver 0: position 0, standstill, SG min/max not available
                        Driver 1: position 0, standstill, SG min/max not available
                        Driver 2: position 0, standstill, SG min/max not available
                        Driver 3: position 0, standstill, SG min/max not available
                        Driver 4: position 0, standstill, SG min/max not available
                        Driver 5: position 0
                        Driver 6: position 0
                        Driver 7: position 0
                        Driver 8: position 0
                        Driver 9: position 0
                        Driver 10: position 0
                        Driver 11: position 0
                        Date/time: 2021-06-12 12:40:32
                        Cache data hit count 35451813
                        Slowest loop: 4.01ms; fastest: 0.21ms
                        I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
                        === Storage ===
                        Free file entries: 10
                        SD card 0 detected, interface speed: 20.0MBytes/sec
                        SD card longest read time 0.6ms, write time 0.0ms, max retries 0
                        === Move ===
                        DMs created 83, maxWait 0ms, bed compensation in use: none, comp offset 0.000
                        === MainDDARing ===
                        Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
                        === AuxDDARing ===
                        Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
                        === Heat ===
                        Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1 -1 -1
                        Heater 1 is on, I-accum = 0.0
                        === GCodes ===
                        Segments left: 0
                        Movement lock held by null
                        HTTP is idle in state(s) 0
                        Telnet is idle in state(s) 0
                        File is idle in state(s) 0
                        USB is idle in state(s) 0
                        Aux is idle in state(s) 0
                        Trigger is idle in state(s) 0
                        Queue is idle in state(s) 0
                        LCD is idle in state(s) 0
                        Daemon is idle in state(s) 0
                        Autopause is idle in state(s) 0
                        Code queue is empty.
                        === Network ===
                        Slowest loop: 15.60ms; fastest: 0.00ms
                        Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions
                        HTTP sessions: 1 of 8
                        - WiFi -
                        Network state is active
                        WiFi module is connected to access point 
                        Failed messages: pending 0, notready 0, noresp 0
                        WiFi firmware version 1.25
                        WiFi MAC address 3c:61:05:d2:7a:4f
                        WiFi Vcc 3.39, reset reason Power up
                        WiFi flash size 4194304, free heap 24600
                        WiFi IP address 192.168.1.101
                        WiFi signal strength -41dBm, mode 802.11n, reconnections 0, sleep mode modem
                        Clock register 00002002
                        Socket states: 0 0 0 0 0 0 0 0
                        

                        My config.g

                        ; Configuration file for Duet WiFi (firmware version 3)
                        ; executed by the firmware on start-up
                        ;
                        ; generated by RepRapFirmware Configuration Tool v3.2.3 on Sat Jun 12 2021 11:49:21 GMT+0900 (日本標準時)
                        
                        ; General preferences
                        G90                                            ; send absolute coordinates...
                        M83                                            ; ...but relative extruder moves
                        M550 P"*****"                                ; set printer name
                        
                        ; Network
                        M551 P"kotuo"                                  ; 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 S0                                     ; physical drive 1 goes backwards
                        M569 P2 S0                                     ; physical drive 2 goes backwards
                        M569 P3 S1                                     ; physical drive 3 goes forwards
                        M584 X0 Y1 Z2 E3                               ; set drive mapping
                        M350 X32 Y32 Z32 I0                            ; configure microstepping without interpolation
                        M350 E16 I1                                    ; configure microstepping with interpolation
                        M92 X160.00 Y160.00 Z8000.00 E369.00           ; set steps per mm
                        M566 X600.00 Y600.00 Z60.00 E300.00            ; set maximum instantaneous speed changes (mm/min)
                        M203 X6000.00 Y6000.00 Z300.00 E6000.00        ; set maximum speeds (mm/min)
                        M201 X500.00 Y500.00 Z100.00 E500.00           ; set accelerations (mm/s^2)
                        M906 X800 Y800 Z800 E800 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 X300 Y300 Z300 S0                         ; set axis maxima
                        
                        ; Endstops
                        M574 X1 S1 P"xstop"                            ; configure active-high endstop for low end on X via pin xstop
                        M574 Y2 S1 P"ystop"                            ; configure active-high endstop for high end on Y via pin ystop
                        M574 Z1 S1 P"zstop"                            ; configure active-high endstop for low 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 X10:220 Y10:220 S20                       ; define mesh grid
                        
                        ; Heaters
                        M308 S0 P"bedtemp" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin bedtemp
                        M950 H0 C"bedheat" T0                          ; create bed heater output on bedheat and map it to sensor 0
                        M307 H0 B1 S1.00                               ; enable bang-bang mode for the bed heater and set PWM limit
                        M140 H0                                        ; map heated bed to heater 0
                        M143 H0 S120                                   ; set temperature limit for heater 0 to 120C
                        M308 S1 P"e0temp" Y"thermistor" T100000 B4138  ; configure sensor 1 as thermistor on pin e0temp
                        M950 H1 C"e0heat" T1                           ; create nozzle heater output on e0heat and map it to sensor 1
                        M307 H1 B0 S1.00                               ; disable bang-bang mode for heater  and set PWM limit
                        M143 H1 S260                                   ; set temperature limit for heater 1 to 260C
                        
                        ; Fans
                        M950 F0 C"fan0" Q500                           ; create fan 0 on pin fan0 and set its frequency
                        M106 P0 S0.8 H-1                               ; set fan 0 value. Thermostatic control is turned off
                        M950 F1 C"fan1" Q500                           ; create fan 1 on pin fan1 and set its frequency
                        M106 P1 S1 H1 T45                              ; set fan 1 value. Thermostatic control is turned on
                        
                        ; Tools
                        M563 P0 S"PLA" D0 H1 F0                        ; define tool 0
                        G10 P0 X0 Y0 Z0                                ; set tool 0 axis offsets
                        G10 P0 R0 S0                                   ; set initial tool 0 active and standby temperatures to 0C
                        
                        ; Custom settings are not defined
                        
                        ; Miscellaneous
                        M575 P1 S1 B57600                              ; enable support for PanelDue
                        M501                                           ; load saved parameters from non-volatile memory
                        T0                                             ; select first tool
                        

                        I have not set up any macros, so
                        When I run M98P "config.g", I get an error.

                        M98P "config.g"
                        Warning: Macro file  "config.g" not found
                        

                        Maximum voltage of the motor
                        Nidec [KV4239/KF4242] is not listed in the current datasheet, so I guessed from the latest version of the model number: 2A.

                        C17HD2020, no datasheet found, probably: 2A

                        dc42 BoA Phaedrux 3 Replies Last reply Reply Quote 0
                        • dc42
                          dc42 administrators @kotuo last edited by dc42

                          @kotuo please measure the resistance of each motor phase, also measure the length of the motors. From those figures we can estimate the motor characteristics by comparing them with other similar motors.

                          Is this ab existing 3D printer than you have upgraded to Duet? If not, where did the motors come from?

                          Are you using 12V or 24V power?

                          Duet WiFi hardware designer and firmware engineer
                          Please do not ask me for Duet support via PM or email, use the forum
                          http://www.escher3d.com, https://miscsolutions.wordpress.com

                          kotuo 1 Reply Last reply Reply Quote 0
                          • kotuo
                            kotuo @dc42 last edited by

                            @dc42 Thank you for your reply.
                            The motor I'm using is an existing motor.
                            The power supply is 24v.
                            20210611_212437.jpg
                            Nidec : KV4239 A,0.64Ω B,0.64 Ω

                            20210611_212449.jpg
                            C17HD02 A, 0.63Ω B,0.63 Ω

                            20210611_212505.jpg
                            Nidec: KF4242 A,11.6Ω B,11.6Ω

                            dc42 1 Reply Last reply Reply Quote 0
                            • dc42
                              dc42 administrators @kotuo last edited by dc42

                              @kotuo thanks. What is the length of those motors, not counting the shaft?

                              The Nidec KF4242 motor has a high per-phase resistance. It is either not suitable for use in a 3D printer, or it needs a low current. If connected to a Duet with the current set too high, the Duet might well give "phase may be disconnected" warnings for the driver it is connected to.

                              Duet WiFi hardware designer and firmware engineer
                              Please do not ask me for Duet support via PM or email, use the forum
                              http://www.escher3d.com, https://miscsolutions.wordpress.com

                              kotuo 1 Reply Last reply Reply Quote 0
                              • BoA
                                BoA @kotuo last edited by

                                @kotuo I see disconnection reported only for driver 2 - which drives Z axis. Do You have jumpers on the second Z motor connector?

                                kotuo 1 Reply Last reply Reply Quote 0
                                • kotuo
                                  kotuo @dc42 last edited by

                                  @dc42 Thank you for your reply.
                                  Size of the motor
                                  Inked20210611_212437_LI-min.jpg
                                  KV4239
                                  Red line 42mm
                                  Blue line 42mm
                                  Green dot (length without shaft) 38mm
                                  Inked20210611_212449_LI-min.jpg
                                  C17
                                  Red line 42.4mm
                                  Blue line 42.4mm
                                  Green point (length excluding shaft) 39mm
                                  Inked20210611_212505_LI-min.jpg
                                  KF4242
                                  Red line 43mm
                                  Blue line 43mm
                                  Green line (length excluding shaft) 39mm

                                  dc42 1 Reply Last reply Reply Quote 0
                                  • kotuo
                                    kotuo @BoA last edited by

                                    @boa Thanks for your reply.
                                    I have the jumper on the second Z-axis.

                                    1 Reply Last reply Reply Quote 0
                                    • Phaedrux
                                      Phaedrux Moderator @kotuo last edited by

                                      @kotuo said in What is the best way to destroy the Duet2 motor driver?:

                                      M98P "config.g" Warning: Macro file "config.g" not found

                                      You have the space in the wrong place, should be M98 P"config.g"

                                      Z-Bot CoreXY Build | Thingiverse Profile

                                      kotuo 1 Reply Last reply Reply Quote 0
                                      • kotuo
                                        kotuo @Phaedrux last edited by

                                        @phaedrux Thank you very much.
                                        It was a short sentence, so typing it by hand was a big mistake.
                                        Here is the result
                                        M98 P "config.g"
                                        HTTP is enabled on port 80
                                        FTP is disabled
                                        TELNET is disabled

                                        Veti 1 Reply Last reply Reply Quote 0
                                        • Veti
                                          Veti @kotuo last edited by

                                          @kotuo
                                          are you sure that red and green are one phase?
                                          because normally red and blue are one phase

                                          kotuo 1 Reply Last reply Reply Quote 0
                                          • kotuo
                                            kotuo @Veti last edited by

                                            @veti Thank you for pointing this out.
                                            I have no choice but to change the order of the cables because the cables I am using are twisted on the motor side and I do not have the terminals on the motor side.

                                            dc42 1 Reply Last reply Reply Quote 0
                                            • dc42
                                              dc42 administrators @kotuo last edited by dc42

                                              @kotuo said in What is the best way to destroy the Duet2 motor driver?:

                                              Green point (length excluding shaft) 39mm

                                              Thanks, it's a 39mm Nema 17 motor then.

                                              To get an idea of the characteristics, go to https://www.omc-stepperonline.com/nema-17-stepper-motor/. Set he unipolar/bipolar filter to Unipolar, the Body Length filter to a range that is close to the motor length e.g. 39 to 40mm, and set the Phase Resistance filter to a value that covers the 11.6 ohm resistance that you measured.

                                              The closest one I found was this one https://www.omc-stepperonline.com/nema-17-stepper-motor/nema-17-bipolar-1-8deg-36ncm-51oz-in-0-85a-5-4v-42x42x39mm-4-wires. It has the same length but the phase resistance is 6.3 ohms.

                                              To account for the different in phase resistance, we can assume that for the same motor size, inductance is proportional to phase resistance, rated current is inversely proportional to the square root of phase resistance, and phase voltage is proportional to the square root of phase resistance. This suggests the following approximate values for that motor:

                                              Inductance 18.4mH
                                              Phase voltage at rated current 7.3
                                              Rated phase current 0.63A

                                              EDIT: is that the Z motor? Is there just one Z motor, or are there two? If there are two, how have you connected them to the Duet?

                                              Duet WiFi hardware designer and firmware engineer
                                              Please do not ask me for Duet support via PM or email, use the forum
                                              http://www.escher3d.com, https://miscsolutions.wordpress.com

                                              kotuo 1 Reply Last reply Reply Quote 0
                                              • dc42
                                                dc42 administrators @kotuo last edited by

                                                @kotuo said in What is the best way to destroy the Duet2 motor driver?:

                                                @veti Thank you for pointing this out.
                                                I have no choice but to change the order of the cables because the cables I am using are twisted on the motor side and I do not have the terminals on the motor side.

                                                There are at least two different phase pinouts used on stepper motors with 6-pin JST connectors. This means that if the cable was not supplied with the motor, the colours may well be wrong, as you have discovered.

                                                Duet WiFi hardware designer and firmware engineer
                                                Please do not ask me for Duet support via PM or email, use the forum
                                                http://www.escher3d.com, https://miscsolutions.wordpress.com

                                                1 Reply Last reply Reply Quote 0
                                                • kotuo
                                                  kotuo @dc42 last edited by

                                                  @dc42 Thank you for your reply.
                                                  I am using only one Z axis.

                                                  dc42 1 Reply Last reply Reply Quote 0
                                                  • dc42
                                                    dc42 administrators @kotuo last edited by

                                                    @kotuo what motor current have you set for the Z axis in your M906 command in config.g? You will need to use 600mA or less with that motor. If you set a much higher current, then you can expect to see those "phase may be disconnected" warnings, because the drivers will be unable to provide the requested current to that high resistance motor.

                                                    Duet WiFi hardware designer and firmware engineer
                                                    Please do not ask me for Duet support via PM or email, use the forum
                                                    http://www.escher3d.com, https://miscsolutions.wordpress.com

                                                    kotuo 1 Reply Last reply Reply Quote 0
                                                    • kotuo
                                                      kotuo @dc42 last edited by

                                                      @dc42 Thank you for your reply!
                                                      I will lower the motor current to 600 with RRF and upload the zip file to Duet.

                                                      1 Reply Last reply Reply Quote 0
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