No reaction on tool change command by T0, T1 ... etc.
I'm setting up my MMU2S on a SKR 1.4. First tests I made were to calibrate filament length for all 5 filaments which works fine. After that I made some tool changes with pronterface and the filaments switched right. Filament was pulled and next filament was transported to hotend. Doing filament load from display also worked. After mounting the MMU2 to my printer for production, I'm no longer able to do anything with the LCD-menues with exeption of resetting the MMU2. Also tool change from pronterface does no longer work. Connection to the MMU2 from the skr seems to work, I can see the reset command from Marlin and reaction from MMU2. Also some settings from the MMU2 where shown when sending M503. In the moment I'm lost and I don't know where to look. Anyone having any idea? Complete reset was also done. Thank you
RE: solved
I could solve the problem. I thought again about the problem and I was curious abot the the serial interface of my MMU2. Some Data was received and shown in the terminal, but no command was accepted. I mounted the MMU2 and tightened also all wires with cable ties. I pulled it to tied an the Tx wire to the MMU2 was sadely cut off. I resoldered the wire to the connector pin and now it's working again.
RE: No reaction on tool change command by T0, T1 ... etc.
Sorry but can I ask you a little about how to connect MMU2? I checked the wire is intact but can not connect. I am not sure if I missed any steps..