I did some searches to try to figure out how to turn on the fan speed controller and set a value (speed) through an automation but came up empty handed. I did end up figuring it out so I thought I’d post the info in case it helps someone else.
The issue seems to be that there’s no speed or value entity for the device, so I can’t select the desired entity in the automation to set the speed.
I downloaded the zwave diagnostics to find the information on what to use in the “set value of a z wave value” action.
Command Class: Multilevel Switch
Property: targetValue
Value: 75 (or whatever you want)
device_id: device-id-here
domain: zwave_js
type: set_value
command_class: 38
property: targetValue
value: '75'
wait_for_result: true
This turns on the switch and sets the value.