Milo V2.0 Spindle Power and Control (RS485 / Modbus)

Diagram

Milo V2.0 can control a VFD via RS485, which is the simplest and most reliable way for 2-way communication between the mainboard and the VFD. This setup should be used in most cases if supported by the firmware and the VFD.
%3 VFD VFD Shihlin SL3-021-1.5K GD 4 U 4 5 V 5 6 W 6 7 GND 7 15 DA+ 15 16 DB- 16 __FB_1 Crimp Ferrule 1.5 mm2 RD VFD:e--__FB_1:w __FB_2 Crimp Ferrule 1.5 mm2 RD VFD:e--__FB_2:w __FB_3 Crimp Ferrule 1.5 mm2 RD VFD:e--__FB_3:w __FB_4 Crimp Ferrule 1.5 mm2 RD VFD:e--__FB_4:w __FB_5 Crimp Ferrule 1.5 mm2 RD VFD:e--__FB_5:w TO-SPINDLE TO-SPINDLE 4x 16 AWG (1.5 mm²) + S 1 m BK       1:BN     SPINDLE-CONNECTOR:1:U     2:BU     SPINDLE-CONNECTOR:2:V     3:RD     SPINDLE-CONNECTOR:3:W     4:YEGN     SPINDLE-CONNECTOR:4:GND   Shield   __FB_1:e--TO-SPINDLE:w __FB_2:e--TO-SPINDLE:w __FB_3:e--TO-SPINDLE:w __FB_4:e--TO-SPINDLE:w SPINDLE-CONNECTOR SPINDLE-CONNECTOR Aircraft Connector 4-pin VT 1 U 1 2 V 2 3 W 3 4 GND 4 SPINDLE SPINDLE 1.5kW Spindle with Aircraft Connector 4-pin GD 1 U 2 V 3 W 4 GND SPINDLE-CONNECTOR:e--SPINDLE:w SPINDLE-CONNECTOR:e--SPINDLE:w SPINDLE-CONNECTOR:e--SPINDLE:w SPINDLE-CONNECTOR:e--SPINDLE:w __SOLDERED_1 Pre-Soldered SR __FB_5:e--__SOLDERED_1:w __SOLDERED_1:e--TO-SPINDLE:w MAINBOARD MAINBOARD BigTreeTech Scylla V1.0 GD 485-A 37 485-B 38 __FA_1 Crimp Ferrule 0.25 mm2 GY MAINBOARD:e--__FA_1:w __FA_2 Crimp Ferrule 0.25 mm2 GY MAINBOARD:e--__FA_2:w MODBUS MODBUS 2x 1 m RDBK       1:RD         2:BK       __FA_1:e--MODBUS:w __FA_2:e--MODBUS:w __FA_3 Crimp Ferrule 0.25 mm2 GY __FA_3:e--VFD:w __FA_4 Crimp Ferrule 0.25 mm2 GY __FA_4:e--VFD:w TO-SPINDLE:e--SPINDLE-CONNECTOR:w TO-SPINDLE:e--SPINDLE-CONNECTOR:w TO-SPINDLE:e--SPINDLE-CONNECTOR:w TO-SPINDLE:e--SPINDLE-CONNECTOR:w MODBUS:e--__FA_3:w MODBUS:e--__FA_4:w

Bill of Materials

Id Description Qty Unit Designators
1 Cable, 2 wires, RDBK 1 m MODBUS
2 Cable, 4 x 16 AWG shielded, BK 1 m TO-SPINDLE
3 Connector, Aircraft Connector, 4 pins, VT 1 SPINDLE-CONNECTOR
4 Connector, Crimp Ferrule, 0.25 mm2, GY 4
5 Connector, Crimp Ferrule, 1.5 mm2, RD 5