Pilz PNOZ m1p base unit - Manual (Page 48)

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]
4-11
4.4 Burner cycle
4 Burners
4.4 Burner cycle 4400 Burner cycle 4- 4.4.1 Steps
Steps 4- Funktionsbeschreibung_Schritte
Each step has a fixed step identifier (0 ... 31).
The steps are performed consecutively within the burner cycle (step 1
first, then step 2).
Some steps are only important internally and are not displayed (e.g. step
4). That's why some numbers from 0 to 31 are not listed as steps.
The length of the steps depends on the configuration and the burner cy-
cle. There are steps for which you can set a step time in the PNOZmulti
Configurator; others have a fixed step time, or the step time depends on
the burner cycle.
A step time cannot be set for the following steps. They are run in each
burner cycle, irrespective of the configuration.
 Step 0: Burner switched off
 Step 1: Check start conditions
 Step 18: Burner in operation/controller enable
A step time can be set for the following steps. Your configuration will de-
termine which of these steps are performed in your burner cycle.
 Step 2: Start-up combustion air blower
 Step 3: Compound controller to pre-purge position
 Step 5: Pre-purge/tightness control: Vent
 Step 6: Pre-purge/tightness control: Test air pressure
 Step 7: Prepurge/tightness control, filling:
 Step 8: Prepurge/tightness control, test fuel pressure
 Step 9: Continue pre-purge
 Step 10: Compound controller to ignition position
 Step 12: Pre-ignition
 Step 13: Ignite ignition flame/1st safety time
 Step 14: Stabilise ignition flame
 Step 15: Ignite main flame/2nd safety time
 Step 16: Stabilise main flame
 Step 17: Burner in operation/start position
 Step 20: Afterburn
 Step 21: Post-purge
 Step 22: Run down combustion air blower
 Step 24: Tightness control, vent
 Step 25: Tightness control, test air pressure
 Step 26: Tightness control, filling
 Step 27: Tightness control, test fuel pressure