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10 Appendix
10.18.2.5Special Functions
With HAND key, you can change the setpoints of the internal power control unit (see chapter
8.5 How to Change the Burner-Firing-Rate Controller with the Customer Interface
10.18.2.6RESET
If the O
2
trim is in fault condition and the lower display line shows the O
2
value, the RESET-
key also resets the O
2
trim.
In the customer interface the RESET–key effects as follows:
• Leaving the 2nd display level in the lower display line.
• Status report in the upper display line
• Disable manual-mode
• Deactivate mode „set burner firing rate controller“
10.18.2.7Other Functions
The upper display line shows current fault messages, independent of the operating mode.
Faults of the O
2
controller are always shown in the upper display line, provided that operating
mode is in basic firing rate or control operation. This is not valid should there be a current fault.
First the display shows an error message („O2 controller fault“). After 10 sec. the describing
text follows (e.g. „O2 measured value fault“). Another 15 sec. later the display shows the O
2
error message again.
Thus the display shows these indications alternately. You don’t need an aditional key to call
the describing text.
The O
2
fault indication hides automatically when the trim is active again.
10.19 R. P. M. Sensor
10.19.1 Direct Connection to R. P. M. Sensor
(old version delivered up to Sept. 03)
This option allows you to connect an inductive sensor of the company Turck as a speed feed-
back. On this configuration card 3 speed/ pulse ranges can be set at the factory.
Press HAND key to finish.
Faults can be reset through the RESET key.
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