wiring out 0 on duet3 v1.01
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@Tinchus the + side is always on. the duet switches the outputs on the -ve side
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@jay_s_uk just to be more clear and toi be sure:
I have a pump connected to out0, 24 V. OUT0 input is connected to the same 24 V output that also feeds the duet3 (v1.01, firmware 3.4.6, SBC mode)
On out0 I have marked on green, out0- is connecte to the grnd cable of the pump and V_out0 connected to + of the pump
This wiring and the config I posted above should work? Because it is not working
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@Tinchus it might be best to mark up a diagram with how you have it wired. also supply details of the pump i.e. part number
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@jay_s_uk solved it partially: the problem was a board connected to the pump (pump actually is 12 V and this board was doing a stepdown from 24 to 12V. I replaced this pump for a 24V and now everything work with only 1 problem: when turn on out0 with m42 P0 S1, it look like a pWM signal is being sent because the pump accelerates and slows down like if energy is fluctuating. Also its leds do the same and also the out0 led located on the duet board flashes.
any wat to deactivate pwm? and make out0 just wotk in ON OFF mode? -
@Tinchus setting the pin to S1 should set the output to permanently on.
You could try a value of S255 and see if it does the same -
@jay_s_uk no... still is doing something very weird. I jsut saw that the formware is 3.4.6, but DWC is 3.4.5. I tried to update through ssh and update failed. May be is something wrong on firmwares? I will re flash from scratch the SD card and test again
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@Tinchus said in wiring out 0 on duet3 v1.01:
it look like a pWM signal is being sent
well yes that's because it is. Perhaps you need to change the frequency.
M950
Qnn (optional) PWM frequency in Hz. Valid range: 0-65535, default: 500 for GpOut pins, 250 for fans and heaters. Max value for heaters 1000, to avoid overheating the mosfets. For LED strips (supported in RRF 3.5.0-beta.4 and later only) this is the LED clock frequency. -
@Phaedrux there shouldn't really a PWM signal with S1/S255. it should just be on all the time
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What are the specs of the pump? 24v but what is the current? What are you using for supply?
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@Phaedrux Pump need 0.9 amps, 24V, my PSU can supply 30 amps at 24V. So I have enough power. It is a water pump.
I have just finished "solving" the problem. I just re flashed the sd card and everything is working as expected, no config change, no witing change, just burnt a brand new sd card image
