Table of Contents
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Application Technique
Door Locking and Monitoring with a 442G Access Box and an
Integrated Safety Controller Safety Function
Products: GuardLogix 5570 or Compact GuardLogix 5370 Controller, 442G Multifunctional Access Box, POINT Guard I/O Safety Modules
Safety Rating: Cat. 4, PLe to ISO 13849-1: 2015
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Table of Contents
Related Manuals for Rockwell Automation Allen-Bradley Compact GuardLogix 5370 Controller
Summary of Contents for Rockwell Automation Allen-Bradley Compact GuardLogix 5370 Controller
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Page 1: Table Of Contents
Application Technique Door Locking and Monitoring with a 442G Access Box and an Integrated Safety Controller Safety Function Products: GuardLogix 5570 or Compact GuardLogix 5370 Controller, 442G Multifunctional Access Box, POINT Guard I/O Safety Modules Safety Rating: Cat. 4, PLe to ISO 13849-1: 2015 Topic Page Important User Information... -
Page 2: Important User Information
If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired. In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment. -
Page 3: Summary Of Changes
The Verification and Validation Checklist is now attached to this document as a spreadsheet. General Safety Information Contact Rockwell Automation to learn more about our safety risk assessment services. IMPORTANT This application example is for advanced users and assumes that you are trained and experienced in safety system requirements. -
Page 4: Introduction
If the PDF file opens in a browser and you don't see the Attachments link , download the PDF file and then reopen the file with the Adobe Acrobat Reader application. Rockwell Automation Publication SAFETY-AT129B-EN-P - November 2018... -
Page 5: Safety Function Realization: Risk Assessment
(Reset button depressed) occurs. The safety function in this application technique meets or exceeds the requirements for Category 3, Performance Level d (Cat. 3, PLd), per ISO 13849-1 and control reliable operation per ANSI B11.19. Rockwell Automation Publication SAFETY-AT129B-EN-P - November 2018... -
Page 6: Functional Safety Description
If a demand is placed on any other safety interlock, in this example it is the MAB E-stop, the redundant contactors are dropped out. The Unlock Request button can then be used to request access to the hazard. The DCSTL safety instruction makes sure that the hazard is stopped before the door is unlocked. Rockwell Automation Publication SAFETY-AT129B-EN-P - November 2018... -
Page 7: Bill Of Material
CompactLogix® Power Supply, 120V/240V AC 1769-ECR Right-end cap and terminator Setup and Wiring For detailed information on how to install and wire, refer to the publications that are listed in the Additional Resources. Rockwell Automation Publication SAFETY-AT129B-EN-P - November 2018... - Page 8 The contactor feedback circuit is wired to the 1734-IB8S safety input module in this example. Feedback wiring to a safety module is not required for functional safety. The feedback circuit could be wired to a standard input module. The system has individual reset buttons for resetting faults and resetting safety outputs. Rockwell Automation Publication SAFETY-AT129B-EN-P - November 2018...
- Page 9 Door Locking and Monitoring with a 442G Access Box and an Integrated Safety Controller Safety Function Electrical Schematic For an electrical schematic in AutoCAD or EPLAN format, see the attached files. Rockwell Automation Publication SAFETY-AT129B-EN-P - November 2018...
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Page 10: Configuration
2. Set the IP Address for the controller or any Ethernet communication modules, if used. 3. Add a POINT I/O™ Ethernet adapter module to your project. 4. Add POINT Guard I/O modules to your project. Rockwell Automation Publication SAFETY-AT129B-EN-P - November 2018... -
Page 11: Programming
(1). A reset can then turn output O1 on. The Hazard_Stopped parameter would typically then go to low (0) because the door interlock allows the hazard to move. Rockwell Automation Publication SAFETY-AT129B-EN-P - November 2018... - Page 12 The outputs of the CROUT instruction drive the redundant safety contactors, K1 and K2. In this example, the bottom right light on the MAB is energized in rung 27 when the contactors are energized. Rockwell Automation Publication SAFETY-AT129B-EN-P - November 2018...
- Page 13 2000 ms timer. Rung 21 This rung indicates when the MAB lock solenoid has reached 1,000,000 cycles. One million cycles is the maximum number of switching cycles allowed in the lifetime of the MAB. Rockwell Automation Publication SAFETY-AT129B-EN-P - November 2018...
- Page 14 The bottom right light on the MAB is energized when the contactors are energized, and the light blinks if the safety interlocks are satisfied and all that remains to energize the contactors is a safety reset (bottom right button on the MAB). Rockwell Automation Publication SAFETY-AT129B-EN-P - November 2018...
- Page 15 Door Locking and Monitoring with a 442G Access Box and an Integrated Safety Controller Safety Function For controller logic that you can download to your controller, see the attached ACD file. Rockwell Automation Publication SAFETY-AT129B-EN-P - November 2018...
- Page 16 Door Locking and Monitoring with a 442G Access Box and an Integrated Safety Controller Safety Function Rockwell Automation Publication SAFETY-AT129B-EN-P - November 2018...
- Page 17 Door Locking and Monitoring with a 442G Access Box and an Integrated Safety Controller Safety Function Rockwell Automation Publication SAFETY-AT129B-EN-P - November 2018...
- Page 18 Door Locking and Monitoring with a 442G Access Box and an Integrated Safety Controller Safety Function Rockwell Automation Publication SAFETY-AT129B-EN-P - November 2018...
- Page 19 One Shot Falling (OSF) instruction is used on the reset rung 6. Then, the OSF instruction Output Bit tag is used as the reset bit for the output enable on rung 7. Rockwell Automation Publication SAFETY-AT129B-EN-P - November 2018...
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Page 20: Calculation Of The Performance Level
If you choose the GuardLogix 5570 controller, you need different calculations. The overall safety system can be modeled as follows: Input Logic Output 100S 442G MAB 1756-L73S 1734-OB8S Door Lock 100S Subsystem 1 Subsystem 2 Subsystem 3 Subsystem 4 Rockwell Automation Publication SAFETY-AT129B-EN-P - November 2018... - Page 21 SISTEMA project. The estimated frequency for this example was once per hour, 24 hours per day, 365 days per year. The number of operations that are entered into the SISTEMA example for the contactor subsystem was 8760 annually. Rockwell Automation Publication SAFETY-AT129B-EN-P - November 2018...
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Page 22: Verification And Validation Plan
Additional Resources, and the GuardLogix Safety Application Instruction Set Reference Manual, publication 1756-RM095. For a validation checklist, see the attached spreadsheet. Rockwell Automation Publication SAFETY-AT129B-EN-P - November 2018... -
Page 23: Additional Resources
Provides functional safety data for Rockwell Automation® products. Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1 Provides general guidelines on how to install a Rockwell Automation industrial system. Product Certifications website, rok.auto/certifications Provides declarations of conformity, certificates, and other certification details. - Page 24 Rockwell Automation maintains current product environmental information on its website at http://www.rockwellautomation.com/rockwellautomation/about-us/sustainability-ethics/product-environmental-compliance.page. Allen-Bradley, CompactLogix, ControlLogix, GuardLogix, LISTEN. THINK. SOLVE., POINT I/O, POINT Guard I/O, Rockwell Automation, Rockwell Software, SensaGuard, and Studio 5000 Logix Designer are trademarks of Rockwell Automation, Inc.