QT system: Follow the instructions on Shut Down and Restart Procedures to shut-down the QT system properly.
ROOTs system:

Connecting the IVC to the generator power outlets

Pre-requests

The backup power cords were routed to the NM3 and near to the slow controls rack
The generator is placed outside the NM4 (Near to the gHe tank door)

Steps to follow

Turn on the generator and wait for a few minutes until it stabilized
Check the generator outlet voltage using a multimeter and confirm it is ~120 V
Go to the slow controls rack and record the IVC vacuum level.
Unplug the power cord of the DCU 600 from its backside and connect it to the generator power outlet.
* Note : Do not press any button on the DCU 600. Just unplug the power cord and connect it with a new power cord which is connected to the generator outlet.
Check the Turbo frequency from the DCU 600. It should be going up or stay at the maximum 600 Hz
Check the vacuum level of the IVC and confirm it is stable. If it is not stable and going up, something is wrong and check the status of DCU 600.

pictures (Stay tune)

Go into the NM3, IVC backing pump, and close the butterfly valve on the backing pump inlet.
Turn off the backing pump

pictures (Stay tune)

Unplug the power cord of the backing pump and connect it to the generator power cord
Turn on the pump
Open the butterfly valve
Go to the slow controls rack and confirm the IVC level is stable.
Once everything looks fine, unplug the power of the IVC sensor readout and plug into the generator power outlet.