Well, since I am a brilliant engineer, I dont need to read any documentation, since everything is perfectly clear, well, not so.
I managed to put the ribbon vable in the wrong connectore, moving it from "LCD" to SD" solved the thing.

Well, the Lab
Right, what do I have in there, well:
One TEK 7854 computing mainframe with calculator.
One TEK 7603 with 7D20 Digitizer
One TEK 7613 Storage with Curve tracer
A number of various TEK7000 series Plug-Inns
One Nicolet 4094 Storage scope with dual 5 1/4 Floppy-Drive.
One TEK DPO7000
One HP 2GHz spectrum analyzer
One Agilent 6,5 digit DVM
One Fluke 8854a 5,5 Digit DVM
One fluke 8000 DVM
Various fluke handhelds
One handheld Agilent LCR-meter
One TEK 1241 96 channel Logic analyzer
One TEK 308 8-bit +16- bit Logic analyzer
One HP Counter
One TM500 with a number of various modules
3 weller WX soldering stations, 40, 80 and 200W
1 Weller De-solderiong station
One Hot air soldering station
2 Leica Stereo microscopes with lightassembly
One 3-d Printer
And to finilize the whole stuff, one complete SMD Pick and Place assembly line

Fredrick, I know, I need to get some more stuff.
On the purchace list is a Wow&Flutter meter amongst others.

Fredrick.
I am a HP-fan, I use an HP41 as my standard physical calculator.
I also have an HP97, that needs some restoration as well as an HP71B, together with HP-IL for the 71 and the 41 and an IL-printer.
When I get my Frankenstein -printer working, I have to print some spare parts for my Teletype model 33 ASR as well as for my Nakamichi 582 tape-deck, amongst others.
The Idea I have is to print hammer-rubbers in rubber-filiaments and to cast printer-heads for the Teletype (with lost-wax), since these currently is made of un-obtanium.

Anyway, Ill be back tomorrow, when I have done the tests on the end-stops.

It seems to be sorted, the view of extra heaters was selected, not the tool heaters.

@phaedrux Yes, I know all that, however my question was not answer in those documents.

@Phaedrux
Tuned them them with M303 a couple of weeks ago and M500 to save

@jay_s_uk
Here they are
config (1).g

config-override.g

Every time I star my printer, I get this message:
"Event Notification"
"Heater 1 fault: exceeded allowed temperature excursion: target 220.0°C actual 53.0°C"

After I close the message and reset the nozzle heater everything is as expected.
Duet 2 WiFi 2.5.1
DWC 3.5.1

M122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 3.5.1 (2024-04-19 14:40:46) running on Duet WiFi 1.02 or later
Board ID: 0JD0M-9P6M2-NW4SD-6J9DL-3S46N-1TNRM
Used output buffers: 1 of 26 (14 max)
=== RTOS ===
Static ram: 23256
Dynamic ram: 73344 of which 12 recycled
Never used RAM 16532, free system stack 184 words
Tasks: NETWORK(1,ready,13.7%,220) HEAT(3,nWait 5,0.1%,280) Move(4,nWait 5,0.0%,359) MAIN(1,running,85.9%,743) IDLE(0,ready,0.2%,29), total 100.0%
Owned mutexes:
=== Platform ===
Last reset 00:06:51 ago, cause: power up
Last software reset at 2024-10-20 20:26, reason: User, Gcodes spinning, available RAM 14088, slot 2
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 24.2, current 30.3, max 30.6
Supply voltage: min 11.6, current 11.8, max 12.3, under voltage events: 0, over voltage events: 0, power good: yes
Heap OK, handles allocated/used 0/0, heap memory allocated/used/recyclable 0/0/0, gc cycles 0
Events: 1 queued, 1 completed
Driver 0: standstill, SG min n/a
Driver 1: standstill, SG min n/a
Driver 2: standstill, SG min n/a
Driver 3: standstill, SG min n/a
Driver 4: standstill, SG min n/a
Driver 5: 
Driver 6: 
Driver 7: 
Driver 8: 
Driver 9: 
Driver 10: 
Driver 11: 
Date/time: 2024-11-06 06:17:17
Cache data hit count 4294967295
Slowest loop: 12.22ms; fastest: 0.18ms
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 3.7ms, write time 0.0ms, max retries 0
=== Move ===
DMs created 83, segments created 0, maxWait 0ms, bed compensation in use: none, height map offset 0.000, max steps late 0, min interval 0, bad calcs 0, ebfmin 0.00, ebfmax 0.00
no step interrupt scheduled
Moves shaped first try 0, on retry 0, too short 0, wrong shape 0, maybepossible 0
=== DDARing 0 ===
Scheduled moves 0, completed 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== Heat ===
Bed heaters 0 -1 -1 -1, chamber heaters -1 -1 -1 -1, ordering errs 0
=== GCodes ===
Movement locks 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
Q0 segments left 0
Code queue 0 is empty
=== Network ===
Slowest loop: 15.71ms; fastest: 0.00ms
Responder states: HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0)
HTTP sessions: 1 of 8
=== WiFi ===
Interface state: active
Module is connected to access point 
Failed messages: pending 0, notrdy 0, noresp 0
Firmware version 1.26
MAC address dc:4f:22:6e:70:65
Module reset reason: Turned on by main processor, Vcc 3.37, flash size 4194304, free heap 25088
WiFi IP address 192.168.10.151
Signal strength -44dBm, channel 0, mode 802.11n, reconnections 0
Clock register 00002002
Socket states: 0 0 0 0 0 0 0 0

I cannot understand why low-side switching is used (Apart from being cheap and easy).
I know it is easier, But High side is safer and, one get a common ground.

@gloomyandy Ok, so I cannot run a common to fans, heaters and the z-probe

Is all the gnd/- terminals common on Duet2.
Thinking of Heaters, Fans etc.
Want to reduce the amount of cabels running to the printer head/extruder assembly.

@jay_s_uk Ok, thats good, what are they using?

Maybe so, but the connections for the extruder heaters are to small.
The design should be sturdy enough so you can tighten them.

The connectors for the heaters and input power needs to be changed to something that does work properly.
With only two solder-point per connector, they tend break.
I had to re-solder all of these connectors, and I am thinking of pouring some epoxy and glue them firmly on the board.

@oliof
I found this row in the "Printer Setting Custom G-codes"

M107 ; turn off fan
{if max_layer_z < max_print_height}G1 Z{z_offset+min(max_layer_z+30, max_print_height)}{endif} ; Move print head up
G1 X0 Y200 F3000 ; home X axis

Should it be commented out?