SLB-EXT and HY02D211B VFD

I’m trying to get the SLB-EXT to work with a new HY02D211B VFD but they don’t seem to want to communicate using MODBUS. I see all of the documentation with ‘Huangyang’ on the list of VFDs to select from but all I have is PWM, PWM2 and H-100. (is that not in the firmware anymore?) I’ve tried swapping the A-B, RS+, RS- wires and that doesn’t change anything, as well as verify the baud, address, etc, match in the controller and the VFD. When the board powers up (with the VFD already booted) the bottom communication LED blinks for a few seconds and then stays off and the top light never blinks (I’m guessing there’s a communication mismatch somewhere). Would it just be easier to use the PWM settings like I have on my Masso G3? The MODBUS thing sounds nice with only being 2 wires. Here is the $i for reference:

M3 S7500 ALARM:19 (Modbus exception. Timeout or message error.) [MSG:Stop]

[VER:1.1f.20260318:] [OPT:VNMZHS2,128,1024,4,32] [NEWOPT:ENUMS,RT+,HOME,ES,REBOOT,EXPR,TC,SED,RTC,ETH,YM,SD] [FIRMWARE:grblHAL] [SIGNALS:EFP] [NVS STORAGE:*EEPROM 16K] [FREE MEMORY:134K] [DRIVER:STM32F412@100MHz] [DRIVER VERSION:260311] [BOARD:SuperLongBoard Ext] [AUX IO:7,4,1,0] [PLUGIN:Bootloader Entry v0.03] [PLUGIN:SLB Probing v0.06] [WIZCHIP:W5500] [MAC:02:08:dc:14:7e:91] [IP:] [PLUGIN:FS stream v1.07] [PLUGIN:FS macro plugin v0.22] [PLUGIN:MODBUS v0.23] [PLUGIN:H-100 VFD v0.11] [PLUGIN:Macros v0.19] [PLUGIN:RGB LED strips (M150) v0.07] [PLUGIN:SIENCI Indicator Light v2.0] [PLUGIN:Events plugin v0.13] [PLUGIN:SIENCI ATCi plugin v0.5.0] [PLUGIN:SDCARD v1.26] [SPINDLE:H-100] ok

If anyone has some insight that would be great, thanks.

Rich

That looks like it is one version firmware behind, maybe try 20260525? Firmware & Flashing - SuperLongBoard

Thanks! I updated the firmware and now see the other options. I am able to control the spindle now but both M3 and M4 spin the motor in the same direction. I tried swapping motor wires and it didn’t change anything other than they both would spin the opposite way. Has anyone had a similar issue? I changed the PD023 setting to 0 (Reverse Rotation Prevention) but that didn’t change anything either. I have a rapidchange ATC that I’d like to use with it so CCW rotation is needed for that. Thanks again!