Chinese A2 Series vfd

[mrmacca]

Sorted it al and working well, thanks for all the help, especially from Dazp1976

[clomar]

I need help. Can anyone connect me to the inverter, control board and driver?

[shimarayn]

You have to connect the power ground (24V0) to the digital ground of the VFD if you driving the FWD signal of the VFD from the isolated output of the AXBB-E.
This VFD seems that it does not have a separeate analog and digital GND which is not really good, because then you have to connect the 5V0 and 24V0 together to make it work.

That is a good oversight!.
Could he try this workaround below?.

Use the non isolated outputs for switching instead.
Port1-output# to FWD and the 5VO from port1 going to GND.
Then you have 2* 5VO on shared vfd GND rather than having a 5v and a 24v?.

This is why I always suggest using a relay for switching fwd!!!!!.

Relay:
24v+ to RL+, output# to RL-.
VFD fwd to RL/NC, VFD gnd to RL/com.
(ssr are usually marked something like pin 1+&2- instead of nc/com)
Fwd+,1/gnd-,2
That solves the whole problem.

You can get a simple DC ssr relay from amazon for cheap.

Or get a cheap 2 pin switch between fwd/gnd and switch it manual.

Relay looks like this:

https://img.joomcdn.net/1ae4b792bbb5293 ... ginal.jpeg

Apologies for reviving this. I have found myself in the possession of this Vevor A2 Series 1.5kw VFD and read the commen t about it not having a seperate ground for the Digital. Will a relay fix this or am I better off getting a VFD that has them seperate and not mess around?

Thanks