Table of Contents
Advertisement
Chapter 7. Detailed Descriptions of EP-19xx Modules
5.3.3 Specifications EP-1901
System data
Data
Interface
System bus transfer rate
Safety-related data per EN ISO 13849 (Regarding the entire safety chain)
Achievable safety level
DC (Diagnostic Coverage)
MTTFd (Mean Time To Failure dangerous)
Safety-related data per EN 62061 (Regard the entire safety chain)
Achievable safety level
PFH (Probability of Failure per Hour in 1/h)
Fault reaction time
Safety-related data per EN 61508 (Regard the entire safety chain)
Achievable safety level
PFH (Probability of Failure per Hour in 1/h)
HFT (Hardware Fault Tolerance)
SSF (Safe Failure Fraction)
Presumed lifecycle time
Prooftest interval
Classification acc. To EN 61508-2:2010
Inputs
Safety inputs
Input type
Inputs for start function
Input type
Outputs
Safety output (OSSD)
Output current
Overload protection
Turn-off time
Turn-on time
Auxiliary outputs
Output current
20
Specifications
Process and diagnostic data depend on the network adapter used
(refer to the table in the section, Data Width of EP-19xx Modules)
RSTi-EP System bus
48 Mbps
PLe and Category 4
99%
> 100 years
SILCL3
6.27 x 10
-9
10 s
SIL3
6.27 x 10
-9
1
98.58%
20 years
No prooftest needed within the life cycle
Type B
1 x 2 channel
Type 3 as per IEC 61131-2
2 (manual start and autostart)
Type 3 as per IEC 61131-2
1
8 A (not for capacitive load)
excess temperature proof and overload-proof, short circuit proof
with external fuse
< 20 ms
< 2 s
2 x 2
max. 10 A (only to support the inputs dedicated inputs)
RSTi-EP Functional Safety Manual
GFK-2956A
Advertisement
Table of Contents
