|
This is the web edition of the original ⮫ AC500-S safety user manual, version 1.3.2. This web edition is provided for quick reference only. The original safety user manual must be used to meet functional safety application requirements. |
|
Type |
SIL(1) max. SIL(2) |
PL(3) |
DC(4) |
MTTFd(5) |
PFHd(6) |
PFHd(7) |
PFDg(8) |
T1(9) |
SFF(10) |
b(11) |
|---|---|---|---|---|---|---|---|---|---|---|
|
SM560-S(-XC) / SM560-S-FD-1(-XC) / SM560- S-FD-4(-XC) |
3 |
e |
97 |
1280 |
1.90E-09 |
8.95E-11 |
7.90E-06 |
20 |
98 |
2 |
|
AI581-S(-XC) |
3 |
e |
97 |
920 |
2.95E-09 |
4.50E-10 |
3.80E-05 |
20 |
99 |
2 |
|
DI581-S(-XC) |
3 |
e |
95 |
2270 |
1.45E-09 |
4.40E-10 |
3.70E-05 |
20 |
98 |
2 |
|
Inputs of DX581-S(-XC) |
3 |
e |
94 |
2250 |
1.45E-09 |
4.50E-10 |
3.80E-05 |
20 |
98 |
2 |
|
Outputs of DX581-S(-XC) with parameter Detection = "On" |
3 |
e |
94 |
1985 |
1.60E-09 |
4.50E-10 |
3.80E-05 |
20 |
99 |
2 |
|
Outputs of DX581-S(-XC) with parameter Detection = "Off" |
2 |
d |
85 |
200 |
1.19E-08 |
1.08E-08 |
4.70E-04 |
20 |
on request |
2 |
- (1)
-
SIL (safety integrity level) according to IEC 61508
- (2)
-
Max. SIL (maximum safety integrity level) according to IEC 62061
- (3)
-
PL (performance level) according to ISO 13849-1
- (4)
-
Diagnostic coverage, % (refer to ISO 13849-1)
- (5)
-
Mean time to failures (years) dangerous according to ISO 13849-1
- (6)
-
Probability of dangerous failure per hour according to IEC 62061
- (7)
-
Probability of dangerous failure per hour according to IEC 61508 (High demand mode)
- (8)
-
Average probability of failure to perform its design function on demand according to IEC 61508 (Low demand mode)
- (9)
-
Proof test interval - mission time - lifetime years
- (10)
-
SFF (safe failure fraction), % according to IEC 61508
- (11)
-
b (beta factor), % for common cause failures according to IEC 61508
DANGER
Safety value calculation uses the average temperature. The average temperature for both the extended temperature range (-40 ... +70 °C) as well as for normal temperature range (0 ... +60 °C) is defined to +40 °C.
Ensure that average operating temperature for used AC500-S and AC500-S-XC modules does not exceed +40 °C.