Standby function
If there is no fault or command pending, "Standby" is displayed on the control.
Standby is active if the automatic closing duration is longer than 60 seconds.
Only the left point, or with an active "WSD" both points, is/are displayed.
Execution of the “Standby” function is stopped by issuing a command or by activating the
“S” selector switch.
Lighting of the internal control device
Only the command push-buttons which enable a logical next command are illuminated.