Dome Operation

The dome is operated by its own PLC but governed by the main PLC. Closing or opening the dome requires approximately 70 seconds.

Manual Operation

The dome can always be operated by pressing a button on the two-button control, directly connected to the azimuth dome control. See Manual Operation for further instructions.

The second operating mode is by using the pendant control (selection 9). * Buttons “←” and “→” rotate the dome counter-clockwise and clockwise. * “RESET” resets the dome axis

API description

The dome is enabled automatically as soon as TelescopeControl.power is TRUE. If the dome has not yet been calibrated, it moves to the calibration position. If the calibration has been completed, the dome azimuth is tied to the telescope azimuth.

• DomeControl.Reset resets the axis, after an error has occurred.

• DomeControl.OpenDome opens slit and flap.

• DomeControl.CloseDome closes slit and flap.

• DomeControl.Light alters the state of the dome illumination. The light is deactivated automatically after 60 minutes.

If the weather conditions are bad, the dome will be closed automatically. If the Dome is opened, the dehumidifier is stopped.