7 Technical data
EMS2…-SWD Electronic motor starter
10/19 MN120008EN
www.eaton.com
53
Safe switch off
Ambient temperature range
40 °C - 60 °C
40 °C - 60 °C
HFT (hardware fault tolerance)
1
1
MTTF (Mean Time to Failure)
34 years at 40 °C ambient temperature
34 years at 40 °C ambient temperature
MTTF
D
(Mean Time to Failure Dangerous)
164 years at 40 °C ambient temperature
164 years at 40 °C ambient temperature
Shutdown time
200 ms
200 ms
λ
sd
– failure rate of detectable safe failures
(sd = safe, detectable)
0 FIT
0 FIT
λ
su
– failure rate of undetectable safe failures
(su = safe, undetectable)
1311 FIT at 40
°C ambient temperature
1311 FIT at 40 °C ambient temperature
λ
dd
– failure rate of detectable dangerous failures
(dd = dangerous, detectable)
694 FIT at 40 °C ambient temperature
694 FIT at 40 °C ambient temperature
λ
du
– failure rate of undetectable dangerous
failures (du = dangerous, undetectable)
0.1 FIT at 40 °C ambient temperature
0.1 FIT at 40 °C ambient temperature
SFF (Safe Failure Fraction)
99 %
99 %
DC (Diagnostic Coverage)
99 %
99 %
PFH
D
: (Probability of dangerous failure per hour)
0.1 FIT at 40 °C ambient temperature
0.1 FIT at 40 °C ambient temperature
PFD
avg
(6 months / 36 months)
(Average Probability of Failure on Demand)
0.5 x 10
-6
/ 2.9 x 10
-6
0.5 x 10
-6
/ 2.9 x 10
-6
Safety level according to
IEC/CEI 61508-1: to SIL3
ISO 13849-1: to category 3 PL e
IEC/CEI 61508-1: to SIL3
ISO 13849-1: to category 3 PL e
Motor protection
HFT (hardware fault tolerance)
0
0
Ambient temperature
40 °C - 60 °C
40 °C - 60 °C
MTTF
D
(Mean Time to Failure Dangerous)
201 years
201 years
Shutdown time
according to class 10, IEC 60947
according to class 10A, IEC 60947
λ
sd
– failure rate of detectable safe failures
(sd = safe, detectable)
0 FIT
0 FIT
λ
su
– failure rate of undetectable safe failures
(su = safe, undetectable)
1044 FIT at 40 °C ambient temperature
1044 FIT at 40 °C ambient temperature
λ
dd
– failure rate of detectable dangerous failures
(dd = dangerous, detectable)
558 FIT at 40 °C ambient temperature
558 FIT at 40 °C ambient temperature
λ
du
– failure rate of undetectable dangerous
failures (du = dangerous, undetectable)
9 FIT at 40 °C ambient temperature
9 FIT at 40 °C ambient temperature
SFF (Safe Failure Fraction)
99 %
99 %
DC (Diagnostic Coverage)
98 %
98 %
PFD
avg
(6 months / 36 months)
(Average Probability of Failure on Demand)
0.04 x 10
-3
/ 0.24 x 10
-3
0.04 x 10
-3
/ 0.24 x 10
-3
Safety level according to
IEC 61508-1: SIL 2
IEC 61508-1: SIL 2
Size/feature
EMS2-…-3-SWD
EMS2-…-9-SWD