wiring an external Estop button to one of these avalable pins ?



  • i have the Duet Expansion Breakout Board. with a couple of empty pin headers:

    heater6_pwm pins

    *gnd
    *+5v
    *H6_pwm (pin 23 )

    And

    E6 is also blank:
    *Step+
    *Step-
    *Dir+
    *Dir-
    *En+
    *En-

    on the board E0 ( all3 pins are free)

    can any of the above pins be used to connect an estop button too, and also with the alarm+ and alarm- pins on the external drivers..
    so if for any reason when the external stepper driver goes to an alarm and stops, the drivers alarm is NO or NC ( configurable ) this signal is connected to the same pin as the mechanical estop button , and when triggered , halts the print and shuts things down

    how do i configure the estop button?



  • i have E1STOP pin set up as the input

    when triggerd the led on the board works

    but nothing happens.

    this is in the config.g:

    M950 J1 C"e1stop"
    M581 P1 T0 C0



  • I did a small write up on external triggers. https://duet3d.dozuki.com/Wiki/Using_M581_-_External_Triggers_and_Building_a_Control_Panel

    I think at the time, the duet asked for confirmation on estop so triggering it externally wasn't doable but I think they've fixed that so it should work now.



  • @hayseed_byte

    I looked at your write up on External Triggers, but got a little confused on converting it to version 3.1 .
    I got a lost on the alphabet soup of version 3.1 do you use p , h , j etc .
    So if you have upgraded you could do a version 3.1 example too.



  • @tracar

    stupid question I know , but what version of the firmware are you on ?

    ; External Triggers
    M950 J0 C"!^e0stop"
    M950 J1 C"!^e1stop"
    M581 P0 T1 S1 R1 ;
    M581 P1 T3 S1 R0 ;
    

    These are my triggers which work.
    The first is connected to the filament run out and the second a switch , both switches are normal open and trigger on closed switches .
    Trigger 3 macro just is a resume button.



  • @peter247 said in wiring an external Estop button to one of these avalable pins ?:

    n I know , but what version of the firmwar

    ; Configuration file for Duet WiFi (firmware version 3)
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool v3.1.4 on Sun Aug 30 2020 09:00:14 GMT-0600 (Mountain Daylight Time)

    ; General preferences
    G90 ; send absolute coordinates...
    M83 ; ...but relative extruder moves
    M550 P"Duet2" ; set printer name
    M669 K1 ; select CoreXY mode

    ; Network
    M552 S1 ; enable network
    M586 P0 S1 ; enable HTTP
    M586 P1 S0 ; disable FTP
    M586 P2 S0 ; disable Telnet

    ; Input/Output Physical Estop
    M950 J1 C"e1stop" ; e1_stop pin on the mainboard
    M581 P1 T0 C0 S0 ; T0 = emergency stop on trigger

    ; Drives
    M569 P5 S1 T5 R1 ; physical drive x goes forwards
    M569 P6 S1 T5 R1 ; physical drive y goes forwards
    M569 P7 S1 T5 R1 ; physical drive z goes forwards
    M569 P8 S1 T5 R1 ; physical drive U goes forwards
    M569 P3 S1 ; physical drive extruder goes forwards
    M584 X6 Y5 Z7:8 E3 ; set drive mapping
    M671 X-50:490 Y330:330 S5 ; x leadscrew position left to right from o,o on y axis , S5 means can adjust up to 5 mm
    M350 X16 Y16 Z16 E16 I1 ; configure micro stepping with interpolation
    M92 X200.5 Y200.5 Z800.00 E93 ; set steps per mm

    ; FEEDRATE CONVERSIONS
    ; 1.6mm/s = F100
    ; 10mm/s = F600
    ; 16mm/s = F1000
    ; 20mm/s = F1200
    ; 35mm/s = F2100
    ; 50mm/s = F3000
    ; 70mm/s = F4200
    ; 100mm/s = F6000
    ; 120mm/s = F7200
    ; 133mm/s = F8000
    ; 160mm/s = F10000
    ; 250mm/s = F15000

    ;M566 X1200 Y1200 Z60 E3000 ; jerk settings testing
    M566 X250.00 Y250.00 Z12.00 E120.00 ; set maximum instantaneous speed changes (mm/min) (original jerk settings)
    M203 X10000.00 Y10000.00 Z1000.00 E2400.00 ; set maximum speeds (mm/min)
    M201 X200.00 Y200.00 Z15.00 E400.00 ; set accelerations (mm/s^2)
    M906 X300 Y300 Z300 E1800 I30 ; set motor currents (mA)
    M84 S30 ; Set idle timeout

    ; Axis Limits
    M208 X0 Y0 Z0 S1 ; set axis minima
    M208 X440 Y535 Z900 S0 ; set axis maxima

    ; Endstops
    M574 X1 S1 P"!xstop" ; configure active-low endstop for high end on X via pin xstop
    M574 Y2 S1 P"!ystop" ; configure active-low endstop for high end on Y via pin ystop
    M574 Z1 S1 P"!zstop+!e0stop" ; configure active-high endstops for low end on Z via pins zstop and e0stop

    ; Z-Probe
    M950 S0 C"!exp.heater7" ; create servo pin 0 for BLTouch
    M558 P9 C"^zprobe.in" H5 F120 T24000 ; set Z probe type to bltouch and the dive height + speeds
    G31 P500 X-.04 Y-26.5 Z3.582 ; set Z probe trigger value, offset and trigger height
    M557 X20:430 S205 Y80:535 S212.5 ; 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 B0 S1.00 ; disable 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 A385.4 C119.0 D3.5 S1.00 V24.2 B0 ; disable bang-bang mode for heater and set PWM limit

    ; Fans
    M950 F0 C"fan0" Q500 ; create fan 0 on pin fan0 and set its frequency
    M106 P0 C"Tool fan" P1 S0 H-1 T45 ; set fan 0 value. Thermostatic control is turned on "H-1 disables thermostatic mode" or H1 enables. "S" parameter turns that fan on or off S0 or S1 T45 is fan on at 45 degrees
    M950 F1 C"fan1" Q500 ; create fan 1 on pin fan1 and set its frequency
    M106 P1 C"Parts cooling fan" S0 H-1 ; set fan 1 value. Thermostatic control is turned on
    M950 F2 C"fan2" Q20000 ; create fan 2 on pin fan2 and set its frequency
    M106 P2 C"LED's Brightness" S0 H-1 ;set fan 2 name and value. Thermostatic control is turned off

    ; Tools
    M563 P0 S"swiss" 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
    M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss
    M501



  • @tracar

    You are on the version 3.1 of the config.g , but what version of the firmware are you on ? use M122

    M122
    === Diagnostics ===
    RepRapFirmware for Duet 2 WiFi/Ethernet version 3.1.1 running on Duet WiFi 1.02 or later
    Board ID: 08DGM-95BLL-N6PSS-6JTD6-3SJ6K-K0UZJ
    Used output buffers: 3 of 24 (17 max)
    

    But if you are on version 3 of the firmware and config.g try adding the !^ which is pull up and invert .


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