Leginon

Does this happen even though the valve is already opened ?

Try a direct call that opens beam valve on scope computer in python command line

from pyscope import jeolcom
j = jeolcom.Jeol()
j.setColumnValvePosition('open')

This function calls feg3 in jeol scripting which 1400 model might not have.
If it is true, we can detect and avoid it.

The 1400 of ours does not have a column valve.

try it any way. I want to know if that is what I need to create a condition for or something else that does not show in the log.

Two things leginon does in 3.2 that not done previously before an acquisition are setColumnValvePosition('open'), and setBeamBlank('off').

filament off
run j.setColumnValvePosition('open')
turns filament on
(wait for full voltage)
run j.setColumnValvePosition('open')
turns filament off
(wait for voltage off)
run j.setColumnValvePosition('closed')
turns filament on
(no wait, not charged)
run j.setColumnValvePosition('closed')
nothing happens, filament is still on

beam is on
setBeamBlank('off')
nothing happens
setBeamBlank('on')
beam goes away
setBeamBlank('off')
beam is restored

Made a change locally to jeolcom.py to disable function, maybe we should move this to jeol.cfg:

    def setColumnValvePosition(self, position):
        return
        if position == 'open':
            self.feg3.SetBeamValve(1)
        elif position == 'closed':
            self.feg3.SetBeamValve(0)
        else:
            raise ValueError

Peculiar. It is turning filament on and off on each call regardless of the state.

I will make changes to have this in the jeol.cfg