Eaton easySafety Manual page 432

Safety function blocks
428
Error detection and acknowledgement
The light curtain muting function block detects the timing
out of the following times:
• Discrepancy time DT.
• Synchronisation time ST.
• Muting time MT.
• Override release time RT.
The function block also monitors the order of the muting
sequence for sequential muting.
Error
Timeout of discrepancy time
DT
Timeout of the synchronisa-
tion time ST.
Timeout of the muting time
MT
Timeout of the override
release time RT
Muting sequence
General information on Errors and how the easySafety reacts
to them is provided in section "Diagnostics using the ER
contact" on page 622.
Example - Architecture of Category 4 according to
EN ISO 13849-1
Access control of an area with a 2-channel light curtain. The
protective function is bridged automatically by 2 muting
sensors arranged in parallel and reactivated when the trans-
ported material has passed through.
02/16 MN05013001Z EN
Error acknowledgement
Dropping out of LM..I1 and
LM..I2
Dropping out of LM..A1 and
LM..A2 as well as LM..B1 and
LM..B2
Dropping out of LM..I1 and
LM..I2,
LM..A1 and LM..A2 as well as
LM..B1 and LM..B2
Dropping out of LM..I1 and
LM..I2,
LM..A1 and LM..A2 as well as
LM..B1 and LM..B2
Dropping out of LM..OV or
picking up of LM..RE