ACT20X-HUI-SAO Universal signal converter Safety Manual
1.1 Revision history Version Date Change 00 04/2014 First Edition 01 05/2016 Page 12, chapter 6 02 11/2017 Product added 03 11/2020 1) C 16.5.2 / P 36: Note 2: "Action on Error" changed to "Error actions” for relays functions 2) C 16.5.3 / P 36: Input condition "Voltage" in table entry "Controlled by setpoints → Error actions" removed 3) C 16.5.3 / P 37: Note 2: "Action on Error = NONE" changed to "Action on Error ≠ No action" 1.
Table of contents Table of contents 1.1 Revision history ................................................................................................................................ 3 1.2 Validity ................................................................................................................................................ 3 1.3 Contact address ................................................................................................................................
Table of contents 13. Maintenance ........................................................................................................ 20 14. Configuration with FDT/DTM .............................................................................. 21 14.1 Concept ............................................................................................................................................ 21 14.2 Hardware / Firmware ...................................................................
Observed standards 2.
Acronyms and abbreviations 3. Acronyms and abbreviations Acronym / Abbreviation Designation Element Description Term defined by IEC 61508 as "part of a subsystem comprising a single component or any group of components that performs one or more element safety functions". PFD Probability of Failure on Demand This is the likelihood of dangerous safety function failures occurring on demand.
Purpose of the product 4. Purpose of the product The ACT20X-HUI-SAO is an one channel universal signal converter for conversion and scaling of temperature (Pt, Ni and TC), voltage, potentiometer, linear resistance and current signals from hazardous areas. The device can be mounted in the safe area and in Zone 2 / Division 2 and receive signals from Zone 0, 1, 2, 20, 21, 22 and mines or Class I/II/III, Division 1, Group A-G.
Assumptions and restrictions for use of the product 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 Relay output pulse length, min.: 70 ms Loop supply: >16.5 V @ 20 mA External loop supply voltage 5...
Assumptions and restrictions for use of the product 5.2.2 Range limitations TC type B shall not be used below +400 °C. 5.3 Associated equipment 5.3.1 RTD or linear resistance sensor wiring If a 2-wire or a 3-wire connection for RTD or linear resistance is selected, the end user must ensure that the applied sensor wiring does not introduce failures exceeding the requirements for the safety application. 5.3.
Assumptions and restrictions for use of the product 5.5 Safe parameterization The user is responsible for verifying the correctness of the configuration parameters (refer to chapter 16.5 "Safety-related configuration user responsibility" on page 33). Manual override may not be used for safety applications. 5.
Functional specification of the safety functions 6. Functional specification of the safety functions Conversion of current signals (0...20 mA or 4...20 mA), voltage signals, potentiometer, linear resistance, RTD sensor signals or thermocouple sensor signals from hazardous areas to a 4...20 mA current output signal, and/or an output relay, within specified accuracy.
Functional specification of the non-safety functions 7. Functional specification of the non-safety functions The status relay (terminal 53 and 54) and LED outputs are not suitable for use in any Safety Instrumented Function.
Safety parameters 8.
Safety parameters PFDAVG ID Tproof = 1 year Tproof = 2 years Tproof = 5 years PFH (see note 1) Tproof SFF C1 2.82 × 10-4 4.63 × 10-4 1.00 × 10-3 4.33 × 10-8 h-1 4 years 93 % C2 4.03 × 10-4 6.63 × 10-4 1.44 × 10-3 6.24 × 10-8 h-1 3 years 90 % C3 2.77 × 10-4 4.52 × 10-4 9.76 × 10-4 4.20 × 10-8 h-1 5 years 95 % C4 4.00 × 10-4 6.56 × 10-4 1.42 × 10-3 6.16 × 10-8 h-1 3 years 93 % C5 3.66 × 10-4 5.99 × 10-4 1.30 × 10-3 5.60 × 10-8 h-1 3 years 93 % C6 4.89 × 10-4 8.
Failure category SIL 2 9.
Hardware and software configuration 10. Hardware and software configuration All configurations of software and hardware versions are fixed from factory and cannot be changed by enduser or reseller. This manual only covers products labeled with the product version (or range of versions) specified on the front page.
Periodic proof test procedure 11. Periodic proof test procedure Step Action 1 Bypass the safety PLC or take other appropriate action to avoid a false trip. 2 Connect a simulator identical to the input setup. 3 Apply input value corresponding to 0/100 % output range to each channel. 4 Observe whether the output channel acts as expected. 5 Restore the input terminals to full operation. 6 Remove the bypass from the safety PLC or otherwise restore normal operation.
Procedures to repair or replace the product 12. Procedures to repair or replace the product Any failures that are detected and that compromise functional safety should be reported to the sales department at Weidmüller Interface GmbH & Co. KG. Repair of the device and replacement of circuit breakers must be done by Weidmüller Interface GmbH & Co. KG only.
Maintenance 13. Maintenance No maintenance required.
Configuration with FDT/DTM 14. Configuration with FDT/DTM The universal signal converter ACT20X-HUI-SAO will be configured via PC according to the FDT/DTM standard. 14.1 Concept The FDT technology standardizes the configuration and communication interfaces between different devices and connected systems, IEC 62453. Therefore the FDT provides a common environment for accessing and connecting the devices features.
Parameterization by user interface 15. Parameterization by user interface Configuration of the parameter via the General User interface "GUI" via the FDT / DTM software. The parameterization according to the safety requirements is oriented towards the general using the product related DTM (Figure 2 "GUI DTM configuration (1) (example)" and Figure 3 "GUI DTM configuration (2) (example)" shows an example of a DTM).
Parameterization by user interface Figure 3: GUI DTM configuration (2) (example) 1482870000/03/11-2020 23
SIL concept for DTMs 16. SIL concept for DTMs 16.1 Activate/deactivate safe parameterization In online mode of the DTM the user can directly configure the device and / or the offline parameterization at the PC. For the SIL configuration the user shall shown "Change SIL state" in the additional functions of each DTM. The function is only available in online state and the hardware is verified, according Figure 4 "SIL configuration (example)".
SIL concept for DTMs By activate the SIL configuration all other parameter views and functions are disabled (and closed) and vice versa, according to Table 1 "Function against SIL".
SIL concept for DTMs By executing the SIL function the DTM request the SIL-state and the user has to enter the password. The SIL-state and the password (enable and password) are defined in open and lock, see Figure 5 "GUI SIL configuration (OPEN) (example)" and Figure 9 "GUI SIL configuration (LOCK) (example)". Figure 5: GUI SIL configuration (OPEN) (example) To deactivate the SIL state the user has to enter the same password and confirm it to change the SIL state from locked to open.
SIL concept for DTMs Figure 6: Valid configuration check (example) 1482870000/03/11-2020 27
SIL concept for DTMs 16.2 Verification procedure The configuration is re-load from the device and shown in a DTM GUI (Graphical User Interface). The user interface loaded the image (as image) with the loaded configuration in the same window. The user now sees a GUI with the configuration loaded from the device, the entered configuration (device parameters) and the stored image (written parameters) as a configuration and will be prompted to check the configuration.
SIL concept for DTMs The user must compare each parameter from the "read back device parameters" side with the "Previously written paramers as image". To accept the parameters the user must press the "Next" button. After that the next window with a parameter set will show and must accept by the user. If all parameters are compared by the user, the configuration software shows the screen below.
SIL concept for DTMs The GUI for SIL configuration is continues read the SIL state and shall shown the change from "OPEN" to "LOCK", see Figure 9 "GUI SIL configuration (LOCK) (example)". If the configuration is corrupted, then the devices rejected the configuration and change the state to "FAIL". After successful locking the configuration the user get a list of all parameter from the DTM and from the stored image file.
SIL concept for DTMs 16.3 Configuration of a SIL active product If the user would like to reconfigure a SIL activated product the software will show the message below.
SIL concept for DTMs To do a reconfiguration, the user needs to deactivate the SIL mode as described in chapter 16.1 "Activate/deactivate safe parameterization" on page 24. Then all parameters are available and can configure. Figure 11: 16.4 Locked SIL state after configuration Changing SIL password The user can change the SIL password in the SIL "OPEN" state, when the user type a new password and confirm it.
SIL concept for DTMs 16.5 Safety-related configuration user responsibility 16.5.1 Safety-related configuration parameters (analogue input) Input Tab Name Function Channel tag and type Selected input type: Temperature Current Potentiometer Resistance Voltage Input current Current range Selected fixed input range for current measurements (for channel tag and type = current): 0...20 mA (no sensor error detection!) 4...
SIL concept for DTMs 4-wire If 2-wire or 3-wire is selected, the end user must ensure that the applied sensor wiring does not introduce failures exceeding the requirements for the safety application.
SIL concept for DTMs Resistance limits Selected resistance unit (for channel tag and type = resistance): Low = selected resistance value for 0% output (for channel tag and type = resistance). Value must be less than high - minimum span. High = Selected resistance value for 100% output (for channel tag and type = resistance). Value must be larger than low + minimum span. Input voltage Voltage range Selected fixed input range for voltage measurements (for channel tag and type = voltage): 2...10V 0...
SIL concept for DTMs Note 1: Note 2: Value not allowed if analogue output is used in a safety application and "Channel tag and type" = current and loop supply is used to supply a current input signal. Error detection is enabled if "Error actions" for relays functions ≠ NONE, but analogue output value is undefined. 16.5.
SIL concept for DTMs occurred.
Fault reaction and restart 17. Fault reaction and restart When the ACT20X-HUI-SAO detects a fault the output will go to Safe State, in which the output will go to "de-energised". If the fault is application-specific (cable error detection) the device will restart when the fault has been corrected. For device faults there are 2 ways of bringing the module out of Safe State. 1. Power cycle the module. 2. Bring the module out of SIL mode (refer to chapter 16.
Connection diagram 18. Connection diagram 18.
Connection diagram 18.
Weidmüller Interface GmbH & Co. KG Klingenbergstraße 26 32758 Detmold Germany T +49 5231 14-0 F +49 5231 14-292083 www.weidmueller.
