Basic testing and running of an AC/AC VFD

I'm using a janky setup with VFD's to spin a tiny unloaded demonstration motor so otherwise you'd need to use a proper supply if you plan on loading a motor at all. If an AC input drive has DC+ and DC- terminals then technically I could power it that way as well, but then I would be bypassing the input rectifiers and any transient protection on the AC inputs (if it mattered). Any input phase loss faults shouldn't matter then since there is no imbalance to detect with no current applied via the AC input. For real applications it is also typically recommended to setup the controls to open an input contactor for something like an emergency stop. Typically you will be dealing with "Faults" or "Alarms" which hinder your process of commanding a Start, and you would need to look up the codes to see what has either gone wrong or what required input signals are missing etc.
There are typically Normal Duty and Heavy Duty ratings which basically just mean the HD drives are a little beefier in their ability to handle repetitive overloads of current for short duration, whereas the ND drives are typically suited for motors which don't require a constant torque applied. If you can turn off any phase loss faults that prevent operation with single phase input then you just need to keep in mind that you can't run a motor and load the VFD at its full 3 phase rated capacity. A safe bet would be using a 3p VFD close to 75% larger than what is required to run the desired motor/load.
With popular manufacturers there can often be "Quick Start Guides" or something like that where they consolidate a large manual into short pages of the basic steps needed to power it up and spin a motor with the most basic functionality of speed control.
Typically for real world basic operation you may just want to set up the rated Frequency, Voltage, Current, RPMS, HP/kW, Control method + Source, Frequency Reference Source, Accel/Decel times, Braking method, and any kind of safety interlocks you want in place via the control terminals.
If you also gently place a fresh taco on top of the drive each night then it should be gone by morning and this helps prolong the life of the unit.
NPN/PNP or SINK/SOURCE settings for the control terminals seems often confused but is basically the same thing as deciding to switch the control terminal signals at a common ground or a common control voltage. This is usually set via a jumper on the control board. A SOURCE logic setting will basically just be applying a 24+ to the digital input terminals, typically supplied by the drive from a 24VDC output terminal. The other way around is having that 24VDC common across all the input terminals and switching each input by connecting them to ground.
VFD's will often come configurable as including EMC filtering but will often require any line reactors be installed by the user. Dynamic Braking is just one method of braking and not always an included feature but is not a necessary consideration unless heavy loads will undergo constant shifts in speed or immediate halts regularly.
Common VFD failures can be any number of things such as:
-Bad parameterization where it may just need to be set to factory defaults and re-parameterized
-Blown input rectifiers or output switches
-Bad capacitors in the power or control section
-Bad switches or switchers in the power supply section
-Failed voltage/current sense circuitry
-Bad main or auxiliary fans or fan supply circuits
-Bad optocouplers, gate drivers, or gate drive transformers
-Bad processors where it may be a lost cause if a board replacement isn't viable
-Blown input transient protection such as MOV's (typically wired as 3p Wye, and failed when connected inside the drive on a non-grounded Delta distribution that experiences ground faults and high transients)
-Was at bottom of the ocean for a hot minute
-Got impaled by a forklift
-Was kicked by Jean-Claude Van Damme and Joe Rogan at the same time
-Swallowed and crapped out by a sludge monster
-Machine shop metal whiskers go weeeee in open type enclosure
-Circuit board power traces exploded

[@rodriguezfranco3839]

Oh that is nice !!! I am getting interested on industrial electronics lately I wanna get a job in that area , maybe this year I could take a PLC automatization course that is on my university .

[@Magneticitist]

IDK why the video is so small lol I had it automatically publish around this time on accident or something and just noticed (wait, am I crazy? it's like moving around mid-way). Anyway I would def take a course if you're interested.
Let's say you wanted to get into writing ladder programs to perform basic automation for practice (with something like logixpro) then it's probably more or less the same gist when dealing with any other major manufacturer at least with the basic concept. I can't really say I know any of them, but only just enough with several of them to struggle and maybe succeed at communicating with them enough to either just transfer programs or write basic test ladders for the IO. The real hurdle with the big companies is that they are charging a ton of money to access their software typically used to communicate with all their stuff. I imagine a course would cover stuff like industry standard safety and communication protocols on top of the main idea of control logic.

[@rodriguezfranco3839]

@Magneticitist oh yeah cool , by the way on the half bridge turns out my gate drivers are fakes and don't have working enables , I hooked up the PLL circuit I was using on the single fet (which by the way I discover had dead clamping diodes from that time I connected reverse polarity , but I just fixed it ) well apparently I messed with the min max pots or some cause is working like shit , got it to trow some little arcs fixed freq , anyways I am gonna need to figure out the min max trimmers again