Pilz PSS SB FT, Basic license - Manual (Page 58)

6-14 Modular Block System: Burner Management
Standard Function Blocks
SB150: Flame monitoring
Block header
Input parameters
• SSNR: Safety subroutine number
Permitted value range: 1 ... 200
Format: Byte constants KB 001 ... KB 200
(further information about the SSNR can be found in the
sections “Administration data blocks DB015, DB016 and
SB017” and “Input parameter
SSNR” in chapter 5).
Value of DW0000/DB015 = 0: no error present
• MONI: MONI = 1: carries out flame monitoring:
When
RUN = 1: monitoring for “ flame established”
When RUN = 0: monitoring for “flame not established”
The output parameter FLAI from SB158 “Ignition” must be
supplied to this parameter when using SB150 for pilot flame
monitoring, and the output parameter
FLAM from SB159 “Run”
must be supplied to this parameter when using SB150 for main
flame monitoring.
• F_S1: Flame signal (N/O contact)
F_S1 = 1: flame established
• F_S2: Flame signal (N/C contact)
F_S2 = 1: flame not established
• RUN: The output parameter RUN from SB158 “Ignition” must be
supplied to this parameter when using SB150 for pilot flame
monitoring, so that information about the status of the pilot
flame can be obtained. The output parameter
RUN from
SB159 “Run” must be supplied to the input parameter RUN
from SB150 when using SB150 for main flame monitoring.
RUN = 1: monitoring for “flame established”
SB150
FLAME_M
B - SSNR
X - MONI
X - F_S1
X - F_S2
X - RUN ENBL - X