Pilz PSS SB FT, Basic license - Manual (Page 67)

Modular Block System: Burner Management 6-23
Output parameters
ENBL: Enable flag bit
ENBL = 1: the signal at the N/C contact S1 is fault-free
(refer also to Programming guidelines)
Function
Spurious signals at the monitored input (e.g. a pressure monitor) cancels
the enable after a set time.
If the N/C contact functions without fault, SB151 sets the enable ENBL. If
interference occurs, the enable is cancelled after a set time period. Short,
fleeting interferences, for example, pressure swings after the valve has
opened will have no effect on the enable.
Error messages
Any fault that is detected will be stored statically in the corresponding error
data word (SSNR) of DB015 (1st data block).
• Error messages in DB015
- Bit 09: Suppression time has elapsed, the signal is spurious
Remedy: check contact S1 and if AuSt = 0, press the reset
button RSET.
- Bit 14: Reset button RSET pressed continuously or pressed too soon.
Remedy: Release reset button and press again.
- Bit 15: Signal is fault-free, but the error which occurred was not reset
( RSET missing)
Remedy: press the reset button RSET.
• Error Messages on the CPU-display
- E001: Parameter errors
The SSNR does not lie within the limits of 1 ... 200. The
incorrect SSNR is stated in DB015/DW0000 (refer also to the
section “Administration data blocks DB015, DB016 and DB017”
in chapter 5).
- E007: Invalid time value for T_V