Baumuller BM4400 - Page 331

Safe stop
Instruction handbook b maXX BM4400, BM4600, BM4700
Document No.: 5.12008.07
331
of 358
E
The STO function meets the following classifications and standards:
1) Two-channel connection of the shutdown via 1 safety relay at the basic unit and the
pulse enable channel of the BM4000-controller LC3:
Device models BM4XXX-XXY-XXXXXRyy]-S01-XX
with Y= 1, 3 or 5 (devices with a safety relay):
Size 1 - 7
m PL-d according to EN ISO 13849-1
with the following parameters:
n Structure: cat 4
n MTTFd: high
n DC: low
m SIL 2 according to EN 62061 and 61508
with PFH
DssD
= 1.5 x 10
-10
2) Two-channel connection of the shutdown via 2 safety relays:
Device models BM4XXX-XXY-XXXXX[Ryy]-S01-XX
with Y= 2, 4 or 6 (devices with two safety relays):
Size 3 - 7
m PL-e according to EN ISO 13849-1
with the following parameters:
m Structure: cat 4
n MTTFd: high
n DC: high
m SIL 3 according to EN 62061 and 61508
with PFH
DssD
= 2.4 x 10
-10
Additional instructions for the STO function: EN 61800 part 5.2.
For further information contact Baumüller Application department.
m The classification of the safety category applies only to the STO function.
m The following switching measures must be met to achieve the safety function:
n Two-channel connection of the shutdown via 1 safety relay and the pulse enable circuit of
the BM4000- controller LC3 for applications which require to minimize risks according to
PL-d or SIL 2.
n Two-channel connection of the shutdown via 2 safety relays for applications which require
to minimize risks according to PL-e or SIL 3.
NOTE
The safety classifications are valid, if the following safety notes were consid-
ered and were complied with.