Attempt to move motors when VIN is not in range DWC shows 0.5V
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@phaedrux
So! I am home from work now, and I plugged in the DUET to my Ender 3 power supply which supplies 24 V (I just checked with my Multimeter and it confirms that part.The DWC interface says I have 0.5V and the M122 prompt says the same.. For shits and giggles I looked at the fan pins and they also say 24V. I have had issues with my hot end fan not working when I plug it into the board so that is my next issue after getting the board to function again.
3:49:47 PMM122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 2.02(RTOS) running on Duet WiFi 1.02 or later
Board ID: 08DGM-917DA-G4MSD-6J1F8-3SD6T-KSU7B
Used output buffers: 3 of 20 (15 max)
=== RTOS ===
Static ram: 25524
Dynamic ram: 98568 of which 0 recycled
Exception stack ram used: 288
Never used ram: 6692
Tasks: NETWORK(ready,648) HEAT(blocked,1232) MAIN(running,3868) IDLE(ready,200)
Owned mutexes: WiFi(NETWORK)
=== Platform ===
Last reset 00:01:22 ago, cause: power up
Last software reset at 2019-03-12 22:17, reason: Unknown, spinning module Platform, available RAM 6320 bytes (slot 2)
Software reset code 0x40b0 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0042380f BFAR 0xe000ed38 SP 0x20001eac Task 0x5754454e
Stack: 004450eb 004450ea 41000000 f8000000 4016afff 00000000 00000000 3e178897 3e1cd04f 41880000 3e3a3335 3e638e3a 423d19d1 00000000 476e5600 37d33333 3c113333 60000000 3fe22666 60000010 00449abb 00000001 0040607f
Error status: 0
Free file entries: 10
SD card 0 detected, interface speed: 20.0MBytes/sec
SD card longest block write time: 0.0ms, max retries 0
MCU temperature: min 36.7, current 37.6, max 37.6
Supply voltage: min 0.4, current 0.5, max 0.5, under voltage events: 0, over voltage events: 0, power good: no
Driver 0: ok, SG min/max not available
Driver 1: ok, SG min/max not available
Driver 2: ok, SG min/max not available
Driver 3: ok, SG min/max not available
Driver 4: ok, SG min/max not available
Date/time: 2019-03-13 15:49:46
Cache data hit count 297248498
Slowest loop: 1.80ms; fastest: 0.06ms
I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0
=== Move ===
Hiccups: 0, StepErrors: 0, LaErrors: 0, FreeDm: 240, MinFreeDm: 240, MaxWait: 0ms, Underruns: 0, 0
Scheduled moves: 2, completed moves: 2
Bed compensation in use: none
Bed probe heights: 0.000 0.000 0.000 0.000 0.000
=== Heat ===
Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1
=== GCodes ===
Segments left: 0
Stack records: 1 allocated, 0 in use
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
serial is idle in state(s) 0
aux is idle in state(s) 0
daemon is idle in state(s) 0
queue is idle in state(s) 0
autopause is idle in state(s) 0
Code queue is empty.
=== Network ===
Slowest loop: 175.35ms; fastest: 0.08ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0) Telnet(0)
HTTP sessions: 1 of 8- WiFi -
Network state is running
WiFi module is connected to access point
Failed messages: pending 0, notready 0, noresp 0
WiFi firmware version 1.21
WiFi MAC address cc:50:e3:0d:27:75
WiFi Vcc 3.42, reset reason Turned on by main processor
WiFi flash size 4194304, free heap 15056
WiFi IP address 10.44.0.21
WiFi signal strength -50dBm, reconnections 0, sleep mode modem
Socket states: 0 0 0 0 0 0 0 0
- WiFi -
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check the fuses if it is blown
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@veti I just checked the fuses with my multimeter, they all read 24 V
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you measure a fuse by measuring the resistance across it while its out of the socket.
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@veti Huh? But then there is no current to the fuse?
Edit: doh... ignore this
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@veti Sorry mate, my bad... I took them out and checked them one by one and they are all fine.
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@magnusjen said in Attempt to move motors when VIN is not in range:
@veti Huh? But then there is no current to the fuse?
Correct. Measure resistance, not voltage or current. Should be zero for a good fuse.
In fact, measuring 24V across a fuse that is IN CIRCUIT is a strong hint that the fuse is "blown". Meaning open. Meaning no current able to pass through. If you think about a good fuse IN CIRCUIT, it should read very, very, very close to zero V 'across' the fuse, because a good fuse is not 'blocking' anything, i.e. not blown. So the 'voltage drop' across the fuse is (almost) nothing.
Delta / Kossel printer fanatic
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@magnusjen said in Attempt to move motors when VIN is not in range:
@veti Sorry mate, my bad... I took them out and checked them one by one and they are all fine.
"Good" as in "Zero Ohms"? (When out of circuit)
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@danal Was to slow, I took them out and looked at resistance across and they all hit zero
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@magnusjen said in Attempt to move motors when VIN is not in range:
@danal Was to slow, I took them out and looked at resistance across and they all hit zero
Perfect... then they are OK.
Hmmm.... DWC still shows just 5V?
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@danal Yes still shows 5V, I even pulled out the fans just for ease of work with the board.
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@magnusjen said in Attempt to move motors when VIN is not in range:
@danal Yes still shows 5V, I even pulled out the fans just for ease of work with the board.
With USB UNPLUGGED, and 24V reading across the pins on the green connector that is circled, which lights are on?
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@danal
Power in is in the correct spot Check
Power reading across reads as 24V check
USB not plugged in Check
Wifi Blue light check
3.3V green light check
5V red light check
VIN blue light check
Z,Y, X stop red lights check -
Interesting....
Just as a final check of inputs and fuses, take a VOLTAGE reading across the two red circles (heater E0 VIN and ground on the big green VIN itself), with USB unplugged and 24V in on.
Should read 24V. Probably will. Still, with that confirmation, we can move on.
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@danal Reads 24V indeed mate
I really appreciates the help! It happend quite sudden, I had the motors working and homed and when I had been working on wiring the fans (with the board turned off) it started with that error.
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EDIT: My memory failed me. I've removed the illustration so as not to lead anyone astray.
The three pin connector nearest the big green VIN power in screw terminals should be blank.
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@danal jumper??? There never was a jumper there on my board.
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@magnusjen said in Attempt to move motors when VIN is not in range:
@danal jumper??? There never was a jumper there on my board.
Yeah, just realized, I was thinking of a different jumper. They are correct the way you describe, empty.
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@danal Good timing, I was just about to put one on hehe
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Summary:
- 3.3V is good, or you couldn't talk to the board (WiFi, CPU, etc, would be dead).
We've verified with lights and voltage readings that :
- VIN is good
- Fuses are good
- VIN is getting to various points around the board.
Which means I'm stumped as to why DWC is saying "insufficient voltage". If I think of anything, I will post, and meanwhile the Duet/Escher guys will be online in a few hours.
