Pilz PSS SB FT, Basic license - Manual (Page 148)

6-104 Modular Block System: Burner Management
Standard Function Blocks
° Main valve opened
→
VAV3 = 1
° Set control enable
→
REGL = 1
° Main flame established
→
RUN = 1
° Monitor main flame
→
FLAM = 1
- NEXT, Bit 3 = 1: Switch-off process normally
° Enable
→
ENBL = 1
° Set-up step 4 active
→
RDY, Bit 3 = 1
° Main valve opened
→
VAV3 = 1
° Reset control enable
→
REGL = 0
° Main flame established
→
RUN = 1
° Monitor main flame
→
FLAM = 1
Timing diagrams
Uninterrupted burner start-up or uninterrupted burner stop sequence
The NEXT input in the byte format controls the SB cycle similar to that of a
sequence.
The cycle is enabled with a single bit set in ascending order from Bit 0 to
Bit 3
Customised modifications are not possible when setting parameters.
SB159