# How to ready the shutter for data taking (from internal resources)

THIS VERSION OF THE CHECKLIST IS FROM THE SUBSYSTEM'S INTERNAL RESOURCES AND MAY BE OUT OF DATE. IT IS PROVIDED BECAUSE THE CURRENT ONE COULD NOT BE READ FROM THE REST FILE SERVER.

1. Power on.
   - Both motors.
   - The Beckhoff controller.
   - The HCU.
2. If necessary, use the Stop button on the GUI to bring the subsystem to the Still state.
3. Enable both axes.
4. Release both brakes.
5. Run a calibration.
6. Close the shutter by slowly (1 mm/sec) moving each blade set to its 0 position.
7. Click on "Prod mode" in the GUI.