AXBB-E to Sunfar E550 VFD Terminal Connections

[JohnnyCimino]

Thank-you [email protected].

I feel like I am making progress but not quite there yet. I appreciate you assistance.

I tested the relay separately with a separate 24V power supply. I am confident that it is working properly and that the wiring is done correctly. I tested the NO contact and it was open with no power on the coil. It successfully closed with power on the coil. I can hear the coil click as the contacts connect and disconnect.

Please note that on my system the power supply that supplies 5V and 24V has a common ground (5V0 and 24V0 are at the same reference). I cannot easily separate them. When I am testing continuity from AXBB-E O3 to AXBB-E 5V0 it would be the same as AXBB-E O3 to 24V0. Maybe I should try to connect VFD CM to AXBB-E 24V0 so we have the same reference across the two boards?

Test #1

This was successful. When i jumpered X1 and CM the Spindle started up.

Test #2

I am not getting 24V between AXBB-E O3 and VFD 24V+ when M3 is activated in UCCNC. The LED lights up on the AXBB-E panel and I can verify continuity between AXBB-E 24V0 and AXBB-E O3 but it doesn't result in 24V potential between 24V+ and O3. So the relay coil never energizes and thus CM and X1 never closes.

Do you have any other ideas?

[JAZZCNC]

See post #6