Connecting Huanyang VFD spindle inverter to mks sbase 1.3

Sergio_C · December 26, 2023, 7:37am

Hi, i have an mks sbase 1.3 board and i need to control a Huanyang VFD spindle inverter.
Can anyone help me with the setup and wiring?

Firmware: smoothieware latest cnc
VFD: Vevor 1.5 KW

Thanks

cilynx · December 29, 2023, 1:24am

What’s your preferred mode of control? Last I played with it, Smoothieware supports PWM and modbus / RS-485 for Huanyang VFDs.

There’s a sample config with pins for spindles on Smoothieware here:

github.com

Smoothieware/Smoothieware/blob/edge/ConfigSamples/Snippets/spindle.config

# Spindle control settings

spindle.enable            true           # [Default false]   Set this to false to disable the spindle module
#spindle.ignore_on_halt    true           # [Default false]   Don't stop the spindle on HALT.  Not recommended unless you really know what you're doing.

# PWM spindle settings

spindle.type              pwm            # [Default pwm]     Spindle module mode (pwm, analog, modbus)
spindle.pwm_pin           2.3            # [Default nc]      PWM output pin.  Must be hardware PWM capable.  (See http://smoothieware.org/pinout)
spindle.pwm_period        50000          # [Default 1000]    PWM period in microseconds.
spindle.max_pwm           0.85           # [Default 1.0]     Max duty cycle.  MC2100 uses 85% duty cycle for max speed.
spindle.feedback_pin      0.22           # [Default nc]      Tach input pin.  Must be interrupt capable.
spindle.pulses_per_rev    1.0            # [Default 1]       Number of pulses per spindle revolution.
spindle.default_rpm       60             # [Default 5000]    RPM value to use if no RPM is provided to initial M3.
#spindle.control_P         0.1            # [Default 0.0001]  Proportional term for the PID controller.
#spindle.control_I         0.1            # [Default 0.0001]  Integral term for the PID controller.
#spindle.control_D         0.1            # [Default 0.0001]  Derivative term for the PID controller.
#spindle.control_smoothing 0.1            # [Default 0.1]     Low pass filter time constant in seconds.

# Analog spindle settings

This file has been truncated. show original

Sergio_C · January 2, 2024, 2:29pm

thanks, I’ll let you know

Sergio_C · January 15, 2024, 2:02pm

Hi @cilynx, are the connections correct?
is pwm_period = 50000 suitalble for yl620 400hz vfd?

# Analog spindle settings

spindle.enable            true
spindle.type              analog         # [Default pwm]     Analog can also be used for ESC spindles controlled by a PWM.
spindle.pwm_pin           2.3            # [Default nc]      PWM output pin.  Must be hardware PWM capable.  (See http://smoothieware.org/pinout)
spindle.min_rpm           100            # [Default 100]     Minimum RPM when spindle is on.
spindle.max_rpm           24000          # [Default 5000]    Maximum RPM at 100% PWM.
spindle.pwm_period        50000          # [Default 1000]    PWM period in microseconds.
spindle.switch_on_pin     2.6            # [Default nc]      Optional output pin used to enable the VFD.

Sergio_C · January 16, 2024, 9:48am

However I would prefer to just start/stop it without control the rpm because
i want to control rpm via VFD.

@mcdanlj it seems like you addressed the problem in this post but I can’t find the solution

mcdanlj · January 16, 2024, 12:53pm

I didn’t get it working, but didn’t try very hard either. I worked on other projects instead.

cilynx · February 5, 2024, 11:34pm

Looking at the yl620 docs you linked, the factory PWM frequency is 8kHz which would be 125 microseconds in the config. Your wiring looks reasonable.