Cooling fan does not rotate.
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All Duet2 Ethernet PWM fans are not working.
(AL ways on fan and PWM fan)
Is this because my Duet is broken, or is it my misconfiguration?
I would like to know how to solve this problem.
Here is 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 Fri Apr 30 2021 23:02:21 GMT+0900 (日本標準時) ; General preferences G90 ; send absolute coordinates... M83 ; ...but relative extruder moves M550 P"My Printer" ; set printer name ; Network M552 P0.0.0.0 S1 ; enable network and acquire dynamic address via DHCP M586 P0 S1 ; enable HTTP M586 P1 S1 ; enable FTP M586 P2 S1 ; enable 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 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation M92 X80.00 Y4000.00 Z80.00 E212.00 ; set steps per mm M566 X900.00 Y900.00 Z60.00 E300.00 ; set maximum instantaneous speed changes (mm/min) M203 X2400.00 Y2400.00 Z2400.00 E6000.00 ; set maximum speeds (mm/min) M201 X500.00 Y500.00 Z20.00 E5000.00 ; set accelerations (mm/s^2) M906 X800 Y800 Z800 E900 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 Y1 S1 P"ystop" ; configure active-high endstop for low 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 M501 ; load saved parameters from non-volatile memory T0 ; select first tool -
@kotuo if all fans not working (PWM & always on) then check if the fuse2 is not blown, or you have the jumper j2 plugged not in the right direction
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@siam
Thank you for your reply.
I'm looking at my Duet2 now.
I've only touched Raspi and Arduino so far, so let me check something rudimentary.
The fuse2 is the fuse in the middle of Duet2 that says "1", is that correct? (Additional note: it is under the fuse marked 7.5)
My fuse 1 is painted black, so I can't visually check if the fuse is blown.
What is the best way to check if the fuse is blown?
Can I use pliers to force it out?
I've also tried connecting the FAN connector the other way around, thinking that the FAN connection might be the other way around, but neither of these have helped. -
@kotuo It's the Fuse with the 1 on top (1 Amp) you can look from the top into this fuse if the connection inside is interrupted then the fuse is blown. Yes you can use a plier to pull it carefully out
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@siam
Thank you for your reply.
Is there anything I need to be careful of when using pliers to pull it out? -
@kotuo normally not only one thing : be sure that you unplug the power before you plug or unplug anything on the board
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@siam
Thank you for your reply.
I disconnected the power cable and tried to pull out the fuse with pliers.
But the top part was damaged and came off, and I could visually see inside.
The fuse was blown. -
DO NOT REVERSE FAN LEADS !!!!
When you do this you have a 50/50 chance of blowing up something. Either the fan or the Duet can be damaged by doing this (but you can luck out).
It's an easy thing to do (I have done this myself) but for everyone reading this thread this is a reminder to not do that.The always on fan headers make a convenient test point and that connection is fused . The other fan connectors are fused too but the fuse is not fast enough to protect the output mosfet.
So, plug the non working fan into the always on output confirms that there is power and that the fan works. If it doesn't run try a different fan. If different fan is also dead than look for power issues such as the fuse.
If fan runs on always on connection, you have either a config issue or the mosfet on your controlled fan output is blown.
(I did not go through your config) -
@kotuo said in Cooling fan does not rotate.:
Thank you for your reply.
I disconnected the power cable and tried to pull out the fuse with pliers.
But the top part was damaged and came off, and I could visually see inside.
The fuse was blown.In this case You need a new Micro Fuse with 1 Amp. But before you insert This Fuse check all cables it is Possible that you have a short circuit or a wrong connected fan.
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I received a new fuse and replaced it, and the fan is now working.
Thank you very much for your help. -
@kotuo, you lucked out
