SEW-Eurodrive MOVISAFE DCS B Series

Manual – MOVIDRIVE® MDX61B Safety Module MOVISAFE® DCS..B Option
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Diagnostic values
Appendix
Encoder combinations with resulting diagnostics coverage (DC) according to EN ISO 13849-1.
Encoder 1 Encoder 2 Comment Fault
exclusion
DC value
Single-
channel
subsys-
tem
Dual-
channel
sub-
system,
dynamic
Dual-channel
subsystem,
non-dynamic
(standstill
monitoring)
Backplane
bus inc.
Incremental
1-encoder
system (via
split cable
Fault exclu-
sion mech.
shaft break-
age, positive
encoder shaft
connection
required
60% 99% 60 – 99%
Backplane
bus inc.
Incremental
2-encoder
system
- - 99% 90 – 95%
Backplane
bus inc.
SIN/COS
1-encoder
system (via
split cable)
Fault exclu-
sion mech.
shaft break-
age, positive
encoder shaft
connection
required
90% 99% 90 – 95%
Backplane
bus inc.
SIN/COS
2-encoder
system
- - 99% 95 – 99%
SIN/COS SIN/COS
2-encoder
system
- - 99% 99%
Backplane
bus abs.
SSI - - - 99% 90 – 95%
Incremen-
tal
SSI - - - 99% 90 – 95%
SIN/COS SSI - - - 99% 95 – 99%
SSI SSI
2-encoder
system
- - 99% 80 – 95%
SIN/COS Incremental - - - 99% 95 – 99%
SIN/COS
Backplane
bus abs.
- - - 99% 95 – 99%
SSI
Backplane
bus abs.
2-encoder
system
- - 99% 80 – 95%