Burner System Management
Burner System Management
Burner System Management
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Actuators references<br />
An incremental transducer is used to ensure position feedback. Referencing of the actuators must be performed after power-on. In<br />
addition, at the end of each shutdown in phase 10, the actuators are referenced to ensure that individual stepping errors, which could<br />
lead to shutdown, do not accumulate. If a position error occurs, the system switches to the safety phase (phase 01), enabling the actuators<br />
with detected position errors to be referenced. During the following phase 10, the only actuators that are referenced are those that<br />
were not referenced before in the safety phase (phase 01). The position of the reference point can be selected depending on the type<br />
of burner design, either the CLOSED position (90°).<br />
Param. Descrizione Description Password<br />
601<br />
Impostazione punto di riferimento<br />
Indice 0 = combustibile<br />
Indice 1 = aria<br />
0 = chiuso (90°)<br />
If the acutators position is exchanged (error code: 85), the burner will lockout and will try to adjust for three times, then it will lock out.<br />
Gas proving system<br />
Valve proving is only active when firing on gas. This is a leakage test designed to detect leaking gas valves and, if necessary, to prevent<br />
the valves from opening or ignition from being switched on. Lockout is initiated. When performing valve proving, the gas valve on<br />
the burner side is opened first to bring the test space to atmospheric pressure. Then, the valve is closed whereupon the pressure in the<br />
test space must not exceed a certain level, measured by the gas leakage pressure switch (PGCP). Then, the gas valve on the mains<br />
side is opened to fill the gas pipe. When the valve is closed again, the gas pressure must not drop below a certain level. Valve proving<br />
can be parameterized to take place on startup, shutdown, or on both phases.<br />
Air-fuel curve points<br />
There are 10 air-fuel curve points: T<br />
Selection of reference point<br />
Index 0 = fuel<br />
Index 1 = air<br />
0 = closed (90°)<br />
P0 = ignition position. Only for ignition; after the ignition, the burner works between Point P1 (low flame) and point P9 (high flame)<br />
without going back to P0.<br />
P0 can be set everywhere irrespective of all the other points.<br />
14<br />
OEM