AXBB-E to Sunfar E550 VFD Terminal Connections

[JohnnyCimino]

I changed the wiring to the Relay as suggested. Everything now works. The spindle spins clockwise when I put in a M3 command in UCCNC. When I put in a M4 command it spins clockwise as well which is not a problem as I do not want to run the spindle in REV (please note that I did not wire to the X2 terminal on the VFD for REV spin).

I think this is a great way to start/ stop the Spindle as the relay I used gives me another set of terminals to perform another function. In my case I would like to disable the "release" of the ATC whenever M3 is active. This is to stop me from inadvertently releasing the collet when the spindle is spinning (which would not end well).

What I am finding is that with my Relay wired per guidance the NO / NC terminals are not operating as expected when the coil is wired but there is no M3 call.

These are the three tests:

#1 No Power to the Relay COM-NO --> No Continuity COM-NC --> Continuity
#2 Power to the Relay No M3 Call COM-NO --> Continuity COM-NC --> No Continuity
#3 Power to the Relay M3 Call COM-NO --> Continuity COM-NC --> No Continuity

Test #1 and #3 are as expected. I was expecting Test #2 to be same as Test #1. Strange thing is that the Spindle still operates as expected (it starts when M3 is active and stops when M3 is inactive) but It is causing me issues in using the Relay second set of poles to lock out the ATC release.

Am I doing something wrong?

Once again - here is the wiring:

Relay 24V+ to PSU 24V+
Relay 24V- to AXBB-E O3 (which is configured for M3 - FWD in UCCNC)
Relay COM to VFD CM
Relay NO to VFD X1 (which is configured for FWD in the the VFD - P1.08 = 11)

John

[JAZZCNC]

Can you link to the relay you are using.?