User Documentation
Table Of Contents
- 1.1 Revision history
- 1.2 Validity
- 1.3 Contact address
- Table of contents
- 2. Observed standards
- 3. Acronyms and abbreviations
- 4. Purpose of the product
- 5. Assumptions and restrictions for use of the product
- 6. Functional specification of the safety functions
- 7. Functional specification of the non-safety functions
- 8. Safety parameters
- 9. Failure category SIL 2
- 10. Hardware and software configuration
- 11. Periodic proof test procedure
- 12. Procedures to repair or replace the product
- 13. Maintenance
- 14. Connection diagram
Assumptions and restrictions for use of the product
8 1482850000/01/11.2017
5. Assumptions and restrictions for use of the product
5.1 Basic safety specifications
Operational temperature range: -20...+60 °C
Storage temperature range: -20...+85 °C
Power supply type: Double or reinforced
Supply voltage: 19.2...31.2 V DC
Mounting area: Zone 2 & Class I, Division 2 or safe area
Mounting environment: Pollution degree 2 or better,
Overvoltage category II
5.2 Safety accuracy
The analogue output corresponds to the applied input within the safety accuracy.
Safety accuracy: ±2 %
5.3 Analogue output
The connected safety valve or other, shall be able to detect and handle the fault indications from the
analogue output of the ACT20X-(2)SAI-(2)HAO driver by having a NAMUR NE43-compliant input circuit.
5.4 Failure rates
The basic failure rates from the Siemens standard SN 29500 are used as the failure rate database. Failure
rates are constant; wear-out mechanisms are not included. External power supply failure rates are also not
included.
5.5 Installation in hazardous areas
The IECEx installation drawing, ATEX installation drawing and FM installation drawing shall be followed, if
the products are installed in or connected to hazardous areas.