VFD does not stop spindle when gcode stopped

[rvalotta]

I have a HY 1.5K Spindle that works perfectly. I can start and stop the spindle from io sender without any problems. From time to time when i have to abort the program the spindle does not stop. IO Sender says its off and the rpm is 0 but its still spinning. I'm not sure what else you would like to help debug this but will answer any questions and provide any data you need.

[terjeio]

Is this with the latest version?

[rvalotta]

Sorry for taking a bit to get back to you life has been crazy

[VER:1.1f.20220325:] [OPT:VNM0SL2,191,1024,3,0] [NEWOPT:ENUMS,RT+,HOME,ES,TC,SED,ETH] [FIRMWARE:grblHAL] [NVS STORAGE:*FLASH] [DRIVER:iMXRT1062] [DRIVER VERSION:220325] [DRIVER OPTIONS:USB.1] [BOARD:GRBLHAL2000 - PRINTNC] [AUX IO:4,1,0,0] [IP:192.168.5.1] [PLUGIN:MODBUS v0.12] [PLUGIN:VFD SELECTOR v0.02] [PLUGIN:HUANYANG v1 v0.07] [PLUGIN:KEYPAD v1.3 INTERTEST] [PLUGIN:Macro plugin v0.02] [PLUGIN:RGB Indicator Lights v1.0]

[rvalotta]

In doing some more testing A reset seems to stop the spindle while a stop does not. Not sure if that helps any.

[andrewmarles]

I have seen this before as well, all the way up to current version. It is consistent when using a VFD spindle. I have looked for the cause of this in the spindle/vfd code a couple of times but have not found the issue. I have tried adding a spindleSetState call (with null state and 0 rpm) in the VFD plugin to the driver reset function, but this didn't solve the problem.

[terjeio]

I can confirm that there is a bug in the sequencing of commands on a driver reset when a stop command is issued. I have not managed to fix it yet - will switch to a STM32 driver for easier debugging.

[terjeio]

Fix comitted - there are changes both in the core and the modbus code. Note that I have only tested with my simulator as I do not have a VFD.