with thermistor protection circuitĤ.7KOhm 0.1% pull up resistor for NTC100K,etc.The IRF740 is an N-Channel Power MOSFET which can switch loads upto 400V.Ĭurrent flows out through Source (maximum 10A)Ĭontrols the biasing of the MOSFET (Threshold voltage 10V) 1KOhm(SKR 3) or 2.2KOhm(SKR 3 EZ) 0.1% pull up resistor for PT1000 by jumper. Is converted to 5V to MOSFET with flyback protectionĤ.7KOhm 0.1% pull up resistor for NTC100K,etc. SKR 3 EZ is converted to 5V to driver (SKR 3 is MCU 3.3V) All other parameters are the same as SKR 3.High and low voltage can be selected for all stepper driver by jumper.Logic voltage: Stepper driver signal DC 5V.Thermistor connection supports Pull up resistance value(2.2Kohm, SKR 3 use 1Kohm, Within our working temperature range, the voltage change scale of 2.2k with PT1000 is more obvious, and the temperature collected under the same ADC accuracy is more accurate than 1K) setting using jumpers, No more extra module needed for PT1000(Accuracy is much lower than max31865).Supported Firmware: Marlin, Klipper and RRF(RepRapFirmware).Expansion port: BLTouch(Servos, Probe), PS-ON, PWR-DET, Fil-DET, RGB, FDCAN.Overall max current(HB+E0+E0+All fans): 10A.Selectable voltage (24V, 12V, 5V by SKR 3-DC MODE)for CNC fan (Note: The voltages of the 3 * CNC fans are unified, different voltages cannot be set separately for different ports), no more need for external stepdown.
You can find a complete review with detailed features of our electronics in Spanish and English on 3dwork.io.
0 kommentar(er)
