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Dears, I am using a control board AXBB-E and UCCNC software control for my mill that I just converted from manual mill to CNC mill.
Everything seems to work fine except I am not able to start using safey system of charge pump.
I connected a relay on 01 isolated port of the control board AXBB-E. It is a NO contact relay. (+24 V on a pin of the relay coil and the other pin connected to 01 isolated port of the board AXBB-E.
This to try to use charge pump to obtain safety functionality and stop the motor driver in the case that the computer shoud accidentally stops.
This as written in the AXBB-E manual.
Then I connected to 02 isolated output of AXBB-E the coil of another relay which NO contacts are connected to a VFD in order to activate CW the spindle of my mill.
Now the problem that I see is that when I activate the key SPINDLE CW on the software UCCNC the spindle starts and it lights the red led on the AXBB-E related to the 02 isolated output but unexpectedly the light related to 01 isolated output of AXBB-E turns off and the motor driver stops.
This happen also if I disconnect the coil of the spinde relay.
Now my question is if this could be connected to a bad programming of UCCNC software or if it could be damaged the AXBB-E control board.
I searched on the forum but I could't find any topics related.
Thanks a lot indeed if there are someone that could help me.

Maybe more than one things are configured to the charge pump output pin, check your configuration.
There is a plugin which can show you what functions are configured to the pins.

the charge pump is a pwm so doesnt sink 24v
if you use a 24v relay with low power input circuitry it works.
or drop to a 12v relay coil.

Dear Battwell,
first of all I want to thank you for your kind answer.
I have to say that you were right!!!
I configured on pin 1 port 1 both charge pump and also the spindle pwm output analog pin A01. But since in the configuration pwm pin in UCCNC program there isn't the possibility to adress A01 so I configured pin 1 port 1.
Now I cancelled the pin in spindle configuration 1 port1 but I put pin0 port0.
and I went to I/O setup and I configured SPINDLE ANALGIC CH on port1
And I configured VAR# ANALOG OUT 1 on port 1
and seem everithing is going well.
I that configuration correct in your opinion? please consider that my spindle motor is drived by a VFD.
I attach here below the screenshot of both configuration pages.
Thank you a lot for your strong support that help me to solve the problem.
Kind regards.
Giorgio