Pilz PNOZ m1p base unit - Manual (Page 45)

4.3 Configuration in the PNOZmulti Configurator
4 Burners
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4-8
4.3.2.6 High temperature
High temperature 4- Funktionsbeschreibung_Ueberwachungen_Hochtemperatur
"High temperature" mode can be activated via the "HTmp" input if the
conditions for high temperature in high temperature plants have been
met in accordance with EN 746-2 and the fuel in the combustion cham-
ber self-ignites safely.
As the fuel in the combustion chamber self-ignites in high temperature
mode, the burner cycle will change.
The following steps are no longer performed in high temperature mode:
 Any steps in connection with pre-purge and post-purge
 Tightness control
 Pre-ignition
 Afterburn
Flame monitoring is also deactivated; the outputs for activating "Com-
pound controller for pre-purge position" (PURG) and the ignition trans-
former (IGNT) are no longer activated.
In any of the steps within the cycle, the "HTmp" input can be used to
switch between high temperature mode and normal mode (see also sec-
tion entitled "Inputs and outputs").
WARNING!
Potential loss of safety functions in "High temperature"
mode!
If the conditions for high temperature in accordance with EN
746-2 are not met, safety-related steps in "High temperature"
mode will no longer be carried out. Depending on the applica-
tion, serious injury or death may result.
Make sure that "High temperature" mode is only active when the
conditions for high temperature in accordance with EN 746-2
are met.