Thermistor issue with Rapido 2
Hello
I just completed a new build of v-core 3.1 kit i bought last year. It came with Rapido 2 hotend and it came with RTD PT1000B "thermistor"
It displays 159C all the time while IDLE
I have been playing wit confing for ratos to read correct temperature but can't find solution for it. When i disconecct it it crashes the klipper so it is conncected to correct place.
Can anyone help me with right confing?
13 Replies
If you hear up the nozzle briefly with a heat gun or lighter, does the temp increase?
it doesn't change value when heated by ligher, when i set temp in ratos it crashes, it don't detect any temp change
i read 1,102 k ohm on the multimeter
Sounds like it isn't hooked up correctly then. If the temp doesn't change at all, I'd double check the pins and wiring
It’s wired to T0 right now as recommended in instructions and I can’t make it work using different kind or configuration. Could be that T0 doesn’t support this thermistor?
PT1000 is what tons of us are using, its definitely supported.
Since you've got a multimeter, try measuring the resistance when you heat it up.
Ok I will test that on Friday. Could you help me to find a correct config code for this thermistor?
Do you have
sensor_type: PT1000 in your config? If so, thats correct
If the reported value isn't changing though, then it isn't hooked up right. If you had the wrong sensor type, you'd still get a change but it would be an offset and change differently (even backwards).Hey! Sensor is hooked to T0, Here is my config : [extruder]
sensor_type: PT1000
sensor_pin: PA0
dir_pin: !e_dir_pin
rotation_distance: 5.57
control: pid
pid_kp: 28.413
pid_ki: 1.334
pid_kd: 151.300
so the sensor type appears correct. Have you triple checked the wiring? No shorts or disconnects? all the crimps look good?
Are you using a toolboard?
i've re-crimped all connectors, just a standard kit
OMG it works... i've removed "sensor_pin: PA0"
sorry for silly problem, it was just me being noob
Yay! Glad you figured it out 🙂
i guess it must had to be a bad crimp, after replacing conncetors it just worked as it should
first thing to check, just like I said 😂