1LC toolboard doesn´t connect to Duet 3 6HC

Panachampu

Hello, I have wired all the 1100x1100x2000mm 3d printer, I need to wire the bed and the endstops. I connected to the printer via DWC, and the interface doesn´t detect any board with M122 B121. I also tried with M122 B10, but it always says this: "Error: M122: Response timeout: CAN addr 121, req type 6024, RID=18" I think it can be a problem in the Can Bus wire, but I tried all, I changed the red wire with the black wire, and nothing happened, I switched it again and nothing happened, and I´m trying to make the machine work, but I can´t. If any of you know what´s happening, please help me, I will be happy of doing any test or any comprobation
Much thanks

droftarts

@Panachampu
Please can you show how you have wired the CAN cable, at both ends. It should be wired from the 6HC RJ11 port, with CAN1_H pin on 6HC going to CAN_H pin on 1LC, and CAN1_L pin on 6HC to CAN_L pin on 1LC.
See https://docs.duet3d.com/Duet3D_hardware/Duet_3_family/Duet_3_Toolboard_1LC#can-connection-1

Does the red ACT LED flash on the 1LC? This should show if the 1LC is getting power.

Both the 6HC and the 1LC need to be using the same firmware. Please send M122 when connected to the 6HC and post the response.

If you are not sure that the 1LC is using the same firmware version, download the 1LC firmware file that is the same version as the 6HC firmware from https://github.com/Duet3D/RepRapFirmware/releases, and upload it to your Duet 6HC mainboard, to the /firmware folder. Do a factory reset the 1LC (see https://docs.duet3d.com/Duet3D_hardware/Duet_3_family/Duet_3_Toolboard_1LC#updating-the-firmware) which will force the firmware to update. Check connectivity after update.

Ian

Panachampu

@droftarts
Thanks for your response and sorry for the delay.
Back to the machine, I’ve welded the jumper of the 120r resistor as it goes in the documentation, and it keeps non comunicating. It only shows a blue led, nothing more. The 24V VIN comes from the 6HC, and the firmware I think is of the same version, it is from the configurator tollo, which I think uses the same version in the boards no? I’m sending you photos of the connections.
Thanks,
Gabriel.

Panachampu

@Panachampu alt text

Phaedrux

Can you test the boards together on a test bench outside of the machine with short cables?

Panachampu

@Phaedrux
I rewired all the can bus thing, and disconnected anything else from the two boards, and nothing happened, it only shows a blue VIN led. I reinstalled the firmware, but one thing, how I have to install the firmware? I installed it with the SD card which has all the files of the configurator, excepting the .json, including the 3 .bin, I think that the 1LC is not doing nothing, it doesn’t flash.

dc42

@Panachampu if it shows only a blue LED with everything except CAN and power disconnected, then there is no 5V power on the board (there is a red LED to indicate 5V power). Please email warranty@duet3d.com with a link to this thread.

Panachampu

@dc42
It now works, I connected the power from the 24V power source and it now works, thanks to everyone. I have another question, the hotend doesn’t work, after clicking on dwc to activate it, it shows an error: Heater 1 fault: monitor 0 was triggered

dc42

@Panachampu please share your config.g file.

Panachampu

@dc42
Here it is all the firmware link text

Panachampu

@Panachampu
I also have a problem with the limit switches. They make short circuit

dc42

@Panachampu if the limit switches are shorting +3.3V or +5V to ground then they are wired incorrectly. See https://docs.duet3d.com/en/User_manual/Connecting_hardware/Sensors_endstops.

dc42

@Panachampu I don't see anything wrong with your tool heater configuration in config.g. Heater 1 monitor 0 is set to 280C in the M143 H1 command, so it will trigger when that temperature higher than that is reported.

Please check the following:

Does the hot end temperature read sensibly, i.e. room temperature when the hot end is cold, rising when you turn the heater on?
As it heats up, does the temperature reading rise smoothly, or are there spikes in the temperature reading? Look at the temperature graph in DWC to check.
Is the heater fault reported after the desired temperature has been reached and overshot, or earlier than that?

Panachampu

@dc42 Hello, when I tell DWC to heat up the hotend, the heater turns on and two seconds after that it shows the fail