Duet 2 Wifi doesn't turn on when connected to 24v psu

Braeden

@phaedrux Absolutely! I unplugged everything besides the vin and the 2 wires from the relay. Nothing appears to be damaged or hot.

alankilian

@braeden I don't see any of the LEDs lit.

Try unplugging the USB and those two extra wires and just supply 24 Volts to VIN and see if any LEDs light up.

Braeden

@alankilian So it’s powered on and everything is unplugged besides the vin

alankilian

@braeden Do you have a voltmeter?

Connect one meter load to ground at Vin and:

Check both sides of the 2 Amp fuse and see if you have 24 Volts on each side.
Check both sides of C97 or C99. You should see 0V on one side and 5 Volts on the other

Braeden

This post is deleted!

Braeden

@alankilian I received 24v on the 2 amp fuse but unfortunately I received 0v on both sides of c97 and c99

dc42

@braeden it's a clone Duet so that green LED is actually the VIN LED.

Looks like either the 5V_INT jumper isn't fitted (although it looks fitted in your photo), or the 5V regulator isn't working, or something is shorting 5V to ground.

Braeden

@dc42 Is there anything I can do to fix it?

alankilian

@braeden Wiggle the 5 Volt jumper or try removing it and shorting the two pins with a paperclip to see if your jumper is bad (unlikely)

Other than that, you can work through this schematic and see what's wrong with the 5 Volt power supply.

Or you can just add a 5 Volt power supply to your system and insert the 5 Volt as an external supply and move on to printing!

Braeden

@alankilian I’ll take a closer look and see what I can figure out when I get back home! Thank you! I was just thinking about adding an external 5v to see if that would get it working.

Braeden

@alankilian Alrighty so I got everything wired back up with the jumper on the ext 5v pins and I have 5v being supplied externally with a step down converter however when I try to home the X axis I get the same error “Attempt to move motors when VIN is not in range” as if it were still plugged into a USB port and also the E0 heater is not heating.

Phaedrux

@braeden said in Duet 2 Wifi doesn't turn on when connected to 24v psu:

“Attempt to move motors when VIN is not in range” as if it were still plugged into a USB port and also the E0 heater is not heating.

Is the VIN LED illuminated?

Braeden

@phaedrux Yes

Phaedrux

Can you measure the VIN terminals at the board with a multimeter to ensure there's correct voltage there?

Can you share the results of M122?

Braeden

@phaedrux I received 24v when I measured the vin

Absolutely!

M122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 3.3 (2021-06-15 21:44:54) running on Duet WiFi 1.02 or later
Board ID: 0JD0M-9P61A-J8PSD-6JTD2-3S86J-9UT6T
Used output buffers: 3 of 24 (10 max)
=== RTOS ===
Static ram: 23876
Dynamic ram: 75204 of which 168 recycled
Never used RAM 12312, free system stack 134 words
Tasks: NETWORK(ready,13.6%,257) HEAT(delaying,0.0%,330) Move(notifyWait,0.1%,329) MAIN(running,85.8%,442) IDLE(ready,0.5%,29), total 100.0%
Owned mutexes: WiFi(NETWORK)
=== Platform ===
Last reset 00:03:06 ago, cause: power up
Last software reset time unknown, reason: User, GCodes spinning, available RAM 12456, slot 2
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x00400000 BFAR 0xe000ed38 SP 0x00000000 Task MAIN Freestk 0 n/a
Error status: 0x00
Aux0 errors 0,0,0
Step timer max interval 0
MCU temperature: min 24.0, current 25.5, max 25.8
Supply voltage: min 1.5, current 1.8, max 1.8, under voltage events: 0, over voltage events: 0, power good: no
Heap OK, handles allocated/used 99/0, heap memory allocated/used/recyclable 2048/4/4, gc cycles 0
Driver 0: position -141000, ok, SG min/max not available
Driver 1: position -141000, ok, SG min/max not available
Driver 2: position 0, ok, SG min/max not available
Driver 3: position 0, ok, SG min/max not available
Driver 4: position 0, ok, SG min/max not available
Driver 5: position 0
Driver 6: position 0
Driver 7: position 0
Driver 8: position 0
Driver 9: position 0
Driver 10: position 0
Driver 11: position 0
Date/time: 2021-12-04 12:53:50
Cache data hit count 4294967295
Slowest loop: 10.89ms; fastest: 0.11ms
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 1.1ms, write time 0.0ms, max retries 0
=== Move ===
DMs created 83, maxWait 43326ms, bed compensation in use: none, comp offset 0.000
=== MainDDARing ===
Scheduled moves 5, completed moves 5, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== AuxDDARing ===
Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== Heat ===
Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1 -1 -1
=== GCodes ===
Segments left: 0
Movement lock 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
Code queue is empty.
=== Network ===
Slowest loop: 14.28ms; fastest: 0.00ms
Responder states: HTTP(2) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions
HTTP sessions: 1 of 8

WiFi -
Network state is active
WiFi module is connected to access point
Failed messages: pending 0, notready 0, noresp 0
WiFi firmware version 1.21
WiFi MAC address e8:68:e7:79:5f:c5
WiFi Vcc 3.35, reset reason Turned on by main processor
WiFi flash size 4194304, free heap 15528
WiFi IP address 192.168.0.232
WiFi signal strength -37dBm, mode none, reconnections 0, sleep mode modem
Clock register ffffffff
Socket states: 0 0 0 0 0 0 0 0

Phaedrux

Can you pull the blade fuses and test them for continuity?

alankilian

@braeden

The Duet power supply voltage sensing is not working properly:

Supply voltage: min 1.5, current 1.8, max 1.8

Can you check the voltage between ground and L5/C64?
You should read 3.3 Volts on each side of L5.
This is the reference voltage for the Analog converters.

Also the voltage at the connection of R80/R81 and R16/R15 (Shown in the schematic above)

You should read..... (Math.....) (4.7/(4.7+47))*24 About 2.2 Volts

Braeden

@phaedrux The 7.5 fuse is blown. The other 2 are fine

Braeden

@phaedrux Replaced the fuse and now it’s working!!! Thank you!!

alankilian

@braeden said in Duet 2 Wifi doesn't turn on when connected to 24v psu:

@phaedrux Replaced the fuse and now it’s working!!! Thank you!!

NICE!