I got the 400w spindle in my kit so its got a PWM Speed Controller dial to control the speed of the spindle. In stead of using the dial, can this be connected and controlled using the BlackBox unit? all information i can find only describes connections for a VFD Inverter.
Pictures / datasheet / manual for your spindles controller and what it needs in terms of a PWM input would help us check
The spindel is from this site 400W Air Cooled Spindle Bundle Spindle Specifications: Work voltage: 12-48VDC Rotation speed: 3000-12000 RPM Power: 400W Torque: 500 mN.m Insulation resistance: > 2Megohm Dielectric strength: 400V Motor Length : 186mm Diameter: 52mm Axis collet Length: 48mm Diameter of Axis collect holder: 16mm Repeat accuracy: 0.01-0.03mm PWM Speed Controller Specifications: Applies to DC12-60V low voltage permanent magnet brushed DC motor Operating Voltage: DC12V-DC60V (Max 65V) Control mode: Default potentiometer control (5K-100K), defaults 10K; MACH3 PWM speed control signal input, external PWM input requirements: level 3.5-12V VPP, frequency 1K-10KHZ, suitable for MACH3 spindle speed control. Power Supply Specifications: Manufacturer: Mean Well Output Voltage-Channel 1: 48 V Output Power: 350.4 W Open Frame/Enclosed: Enclosed Input Voltage: 90 VAC to 132 VAC/180 VAC to 264 VAC, 240 VDC to 370 VDC Output Current-Channel 1: 7.3 A Mounting Style: Chassis Length: 215 mm Width: 115 mm Height: 30 mm Input Frequency: 47 Hz to 63 Hz Unit Weight: 760 g I hope this is what you need. Thanks Warwick
Suitable for the 5v 1khz PWM output straight out of Grbl then. Should work. GnD and PWM is labelled on the Toolhead connector. M3S??? Where ??? Is a number between the values of $31 and $30 (0-1000 in default config)