Siemens RDG400 Basic Documentation page 17

Button lock
Operating mode
switchover contact
(window contact)
Extended Comfort
mode (operating mode
switchover contact
closed)
Temporary timer for
extension of presence /
absence
Function
User operating mode
selection
Siemens
Building Technologies
If the button lock function is enabled by parameter P14, the buttons will be locked
or unlocked by pressing the right button for 3 seconds.
If "Auto lock" is configured, the thermostat will automatically lock the buttons
10 seconds after the last adjustment.
The thermostat can be forced into Energy Saving mode (e.g. when a window is
opened). The window contact can be connected to digital input D1 (or multi-
functional input X1, X2). Set parameter P42 (P38, P40) to 3.
The left button switches the operating mode from Energy Saving to Comfort for the
period preset in P68, if the following conditions are fulfilled:
• The operating mode switchover contact is closed (connected to input X1, X2,
D1; parameter P38, P40, P42 set to 3)
• Parameter P68 (extend Comfort period) is greater than 0
During the temporary Comfort mode extension, sandglass symbol
If parameter P68 (extend Comfort period) = 0, extended Comfort cannot be
activated; pressing the left button will show "OFF" (blinking 3 times).
The current operating mode can be forced temporarily into Comfort or Energy
Saving / Protection mode. The time period is adjusted via the rotary knob:
• Extend presence: Set the device to Comfort mode for the selected time period
• Extend absence: Set the device to Energy Saving / Protection mode for the
selected time period
To activate the function, keep the left button pressed and, within 3 seconds, turn
the rotary knob...
• clockwise for extended presence
• counterclockwise for extended absence
The rotary knob adjusts the time period:
• Extend presence: 0.00...+9:30 in steps of 30 minutes; symbol
• Extend absence: 0.00...–9:30 in steps of 30 minutes; symbol
During the extended presence / absence period, sandglass symbol
Operating
mode when
activating
function
Comfort
Comfort
Protection
Comfort
Comfort
E-Saving
E-Saving
Protection
RDG400 Basic Documentation
Functions
Function Operating mode
during function
Extension Comfort
Absence Protection
Not available -
Extension Comfort
Absence E-Saving
Extension Comfort
Absence E-Saving
Not available -
appears.
appears
appears
appears.
Operating mode at
end of function
Protection
Comfort
-
E-Saving
Comfort
E-Saving
Comfort
-
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CE1P3182en
19 Jun 2009