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Line
Function
893
Displaying voltage output Ux
894
Output test Ux
---
No test
0-100 Voltage setpoint DC 0...10 V (0...100 %)
Reset
899
Resetting the heating engineer parameters to the de-
fault values
To reset the parameters of the heating engineer level to the default
values, press the + / - buttons simultaneously for 3 s
Parameter settings on the «Experts» level
Settings and protective functions for the experts.
Buttons
Explanation
1
Press one of the operating line selection buttons.
This will first take you to programming level "Enduser".
2
Press both operating line selection buttons for at least 9 seconds. The heating
engineer level will appear after 3 seconds and then – after another 6 seconds –
9 s
the EXP programming level with a special display for entering the code.
3
CODE
Press buttons
code.
If the combination of buttons is correct, you reach programming mode "EXP".
è Wrong code:
If the code has been entered incorrectly, the display will return to "Parameterization
heating engineer".
4
Press the operating line selection buttons to select the required line.
The following parameter list contains all operating lines on which settings can
be made.
5
Press the + / - button to set the required value.
The setting will be stored as soon as you leave the programming mode or
change to another operating line.
6
To leave the EXP programming level, press any of the operating mode buttons.
è Note:
If no button is pressed for about 8 minutes, the controller will automatically re-
turn to the operating mode selected last.
Access code
1 2
3 4
5
6
7 8 9 10
0
4
8
12
Whether correct or incorrect, each push of a button represents irrevocably a digit of the code.
As a confirmation, the respective digit changes to 1.
You receive the code from your local Siemens Building Technologies / HVAC Products sales office.
24/28
19.08.2002
and
16
20
24
74 319 0312 0 a
Range
0...100
--- / 0...100
0 / 1
to enter the required combination of the access
Siemens Building Technologies / HVAC Products
Unit
Resolution
Factory
setting
%
–
–
%
–
- - -
–
–
0
Line
• • •
Continu-
ous
display
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