Pilz PNOZ m1p base unit - Manual (Page 47)

4.3 Configuration in the PNOZmulti Configurator
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]
4-10
For the following steps you can select which shutdown type will occur
in the event of an error in the PNOZmulti Configurator:
 Safety chain 1 broken (input CHA1)
 Safety chain 2 broken (input CHA2)
 Ignition and operation safety chain broken (input CHAi)
 No air pressure during operation (during start-up: fault lockout)
 Faulty flame signal during operation (during start-up: fault lockout)
Please note:
The plant must undergo a hazard analysis to determine whether a safety
shutdown is permitted for an error.
4.3.2.9 Step times
Step times 4- Funktionsbeschreibung_Ueberwachungen_Schrittzeiten
You can set a time for most of the steps within a cycle (see View burner
cycle, define step times). The time determines how long the step will be
active. While the step is active, the inputs must conform to the pre-de-
fined set values. Once this time has elapsed, the next step will be started
(see also Burner cycle).
When configuring the step times, please note the following with the
steps below:
 Steps 5 - 9 "Pre-purge...)
The total duration of steps 5 - 9 for pre-purge must not be less than
the minimum duration for pre-purge calculated via the plant's hazard
analysis.
 Step 13 "Ignite ignition flame / 1st safety time"
The configured step time must not be longer than the 1st safety time.
The maximum duration of the 1st safety time is calculated based on
a hazard analysis of the plant.
 Step 15 "Ignite ignition flame / 2nd safety time"
The configured step time must not be longer than the 2nd safety
time. The maximum duration of the 2nd safety time is calculated
based on a hazard analysis of the plant.
A step time cannot be set for the following steps: "Burner switched off",
"Check start conditions" and "Burner in operation/control enable".