Pilz PSS SB FT, Basic license - Manual (Page 179)

8-15 Modular Block System: Burner Management
2
Direct control of the flap
motors via the control
commands
&
1
Establish pulse
from neg. edge
&
&
>1
Information on
the ign.position
Information on
the max. position
Reset by
flap error
Plant error (excluding
flap error) has occurred
Command: close flap until
the ignition position
Command: open flap to
the maximum position
(start position )
SB149
STEP
RDY
COND
STEP
W_BA
W_V
W_T
D_BA
D_V
D_T NEXT
W_E
D_E
SB152
BR_START
SSNR
NEXT
STRT
STOP
ERR
GUAR
AirP
CHAI
FLAs
FTRY
RUN
D_C
AuSt
RSET ENBL
RDY
STEP SB153
FLAP
SSNR
C!
O!
DirO
DirC
T_V
T
RSET ENBL
OPEN
CLOS
SB159
RUN
SSNR
NEXT
SyOK ENBL
RDY
VAV3
REGL
RUN
FLAM
Step: “End of pre-purge”
Step to open the flap to the
maximum position
(e.g. before pre-purge)
&