Pilz PNOZ m1p base unit - Manual (Page 57)

4.4 Burner cycle
4 Burners
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: [email protected]
4-20
Set status of inputs
Examples:
 In step 2, "Start-up combustion air blower", the safety chain must be
closed (input CHA2 = 1)
 In step 1, "Check start conditions", a main flame must not be detect-
ed (input FLAM = 0).
Status of outputs
Examples:
 In step 5 "Pre-purge/tightness control: Vent", the vent valve is activat-
ed (output VV = 1).
 In step 9 "Continue pre-purge", the ignition transformer is not activat-
ed (output IGNT = 0).