Rockwell Automation Allen-Bradley PowerFlex 750 Series User Manual
Safe torque off option module
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Summary of Contents for Rockwell Automation Allen-Bradley PowerFlex 750 Series
- Page 1 User Manual Original Instructions PowerFlex 750-Series Safe Torque Off Option Module Catalog Number 20-750-S...
- Page 2 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.
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Page 3: Table Of Contents
............35 Rockwell Automation Publication 750-UM002I-EN-P - August 2019... - Page 4 Table of Contents Notes: Rockwell Automation Publication 750-UM002I-EN-P - August 2019...
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Page 5: Preface
Drive Frame 15 to PFD and PFH for PowerFlex 755T Drive Products table. Updated the list of supported drive families in the Safety Reaction Time table. Updated the Remove Power to the System section in the Installation and Wiring chapter. Rockwell Automation Publication 750-UM002I-EN-P - August 2019... -
Page 6: Conventions
The average probability of a system to fail to perform its design function on demand. Average Frequency of a Dangerous Failure per Hour The average frequency of a system to have a dangerous failure occur per hour. Performance Level EN ISO 13849-1 safety rating Rockwell Automation Publication 750-UM002I-EN-P - August 2019... - Page 7 The Safe Torque Off (STO) function is used to prevent unexpected motor rotation if there is an emergency while the drive remains connected to the power supply. When STO is activated, the torque power cannot reach the drive, thus stopping and preventing any motor shaft rotation. Rockwell Automation Publication 750-UM002I-EN-P- August 2019...
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Page 8: Additional Resources
Provides declarations of conformity, certificates, and other certification details You can view or download publications at http://www.rockwellautomation.com/global/literature-library/overview.page. To order paper copies of technical documentation, contact your local Allen-Bradley distributor or Rockwell Automation sales representative. Rockwell Automation Publication 750-UM002I-EN-P - August 2019... -
Page 9: Certification
Torque Off option module for use in safety-related applications where the de- energized state is considered to be the safe state. The examples in this manual are based on achieving de-energization as the safe state for typical Machine Safety and Emergency Shutdown (ESD) systems. Rockwell Automation Publication 750-UM002I-EN-P - August 2019... -
Page 10: Important Safety Considerations
• The average diagnostic coverage of the safety-related parts of the control system shall be medium • The mean-time to dangerous failure of each of the redundant channels shall be high • Measures against common cause failure shall be applied Rockwell Automation Publication 750-UM002I-EN-P - August 2019... -
Page 11: Stop Category Definitions
PFD and PFH values. IMPORTANT Your specific application determines the time frame for the proof test interval. Verify operation of safety function after drive installation, modification, or maintenance. See Verify Operation page 21 for more information. Rockwell Automation Publication 750-UM002I-EN-P - August 2019... -
Page 12: Pfd And Pfh Definitions
4.09E-9 Category MTTF years 171.9 104.4 75.5 99 (high) 97.4 (high) 97.5 (high) 97.5 (high) 1 (1oo2) 1 (1oo2) 1 (1oo2) 1 (1oo2) Mission time 20 years 20 years 20 years 20 years Rockwell Automation Publication 750-UM002I-EN-P - August 2019... -
Page 13: Safe State
The safety reaction time from an input signal condition that triggers a safe stop, to the initiation of the configured Stop Type, is shown in Table Rockwell Automation Publication 750-UM002I-EN-P - August 2019... -
Page 14: Considerations For Safety Ratings
Allen-Bradley distributor. With this contact, you can do the following: Option Failure Occurs • Return the device to Rockwell Automation so the failure is appropriately logged for the catalog number that is affected and a record is made of the failure. - Page 15 Verify Operation ATTENTION: The following information is merely a guide for proper installation. Rockwell Automation cannot assume responsibility for the compliance or the noncompliance to any code, national, local or otherwise for the proper installation of this equipment. A hazard of personal injury and/or equipment damage exists if codes are ignored during installation.
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Page 16: Remove Power To The System
The option module is installed in the drive control pod. Different drives have different ways to access the control pod. To access the control pod, follow these steps. 1. Open the door or remove cover. 2. Loosen the retention screw on the HIM cradle. Rockwell Automation Publication 750-UM002I-EN-P - August 2019... - Page 17 Installation and Wiring Chapter 2 3. Lift the cradle until the latch engages. Panel-mounted Drives Drives in Cabinet Enclosures See the installation instructions for your drive for more information. Rockwell Automation Publication 750-UM002I-EN-P - August 2019...
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Page 18: Set The Safety Enable Jumper
Figure 3 - PowerFlex 755 Drive Jumper Locations (Frames 1…7 only) SAFETY Enable (jumper removed) PowerFlex 755 AC Drive Hardware ENABLE (jumper in place) PowerFlex 755 drives (frames 8, 9, and 10) do not have a safety enable jumper. Rockwell Automation Publication 750-UM002I-EN-P - August 2019... -
Page 19: Install The Safety Option Module
2. Tighten the top and bottom retaining screws. – Recommended torque = 0.45 N•m (4.0 lb•in) – Recommended screwdriver = T15 Hexalobular IMPORTANT Do not overtighten retaining screws. Rockwell Automation Publication 750-UM002I-EN-P - August 2019... -
Page 20: Wire The Safety Option Module
25 mA typical Safety Enable Common Shield Terminating point for wiring shields when an EMC plate or conduit box is not installed. Shield Safety Input Connection Example Common +24V Dedicated Power Supply Common +24V Rockwell Automation Publication 750-UM002I-EN-P - August 2019... -
Page 21: Cabling
Test the safety function for proper operation after initial installation of the safety option module. Retest the safety function at the intervals that are determined by the safety analysis that is described on page Verify that both safety channels are functioning according to Table Rockwell Automation Publication 750-UM002I-EN-P - August 2019... - Page 22 The repeated activation of the safety function by only one input at a time can result in a spurious detection of a fault. TIP There is no safe-status output provided on the safety option module. Rockwell Automation Publication 750-UM002I-EN-P - August 2019...
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Page 23: Operation
Under normal operation, 24V DC is applied to both the Safety Power and Safety Enable inputs of the safety option module. If the Safety Enable or Safety Rockwell Automation Publication 750-UM002I-EN-P - August 2019... -
Page 24: Stop Category Wiring Examples
PowerFlex 750-Series drives with Guardmaster® Examples safety relays. Examples include the following drive families: • PowerFlex 753 and PowerFlex 755 Drives, Frames 1…10 • PowerFlex 755T Drive Products, Frames 5…12, 13, 14, and 15 Rockwell Automation Publication 750-UM002I-EN-P - August 2019... - Page 25 A single fault that is detected on the Guardmaster safety input circuits results in the Fault detection lockout of the system at the next operation and does not cause loss of the safety function. Rockwell Automation Publication 750-UM002I-EN-P - August 2019...
- Page 26 Stop Category 0. Application Considerations If the safety option module sticks ON, the motor stops on command due to the enable input. The system cannot be reset when this fault condition exists. Rockwell Automation Publication 750-UM002I-EN-P - August 2019...
- Page 27 (PAC) 24V DC Reset STOP START Gray START/STOP COM Pink SensaGuard Interlock Switch 24V DC COM Jumpers: ENABLE Installed SAFETY Removed Gate Control Guardmaster 440R-EM4R2D SP– Expansion Module Delayed RANGE SE– TIME Motor Rockwell Automation Publication 750-UM002I-EN-P - August 2019...
- Page 28 POINT Guard I/O™ Modules 24V DC Sinking Sourcing PowerFlex 750-Series Gray Drive SensaGuard Pink Interlock Switch Safety Reset 1734-IB8S 1734-OB8S Jumpers: Fault Reset Digital Input Digital Output ENABLE Installed SAFETY Removed Gate Control SP– SE– Motor Rockwell Automation Publication 750-UM002I-EN-P - August 2019...
- Page 29 STO feature on the drive forces the drive output power transistors to a disabled state. The hazardous motion that is controlled by the drive coasts or ramps to a stop. This feature does not provide electrical power isolation. Rockwell Automation Publication 750-UM002I-EN-P - August 2019...
- Page 30 Chapter 3 Safe Torque Off Option Module Operation Notes: Rockwell Automation Publication 750-UM002I-EN-P - August 2019...
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Page 31: Specifications
24V DC, 25 mA Safety power SP+, SP– 24V DC, 45 mA Input ON Voltage, min 24V DC ±10%, 21.6…26.4V DC Input OFF Voltage, max Input OFF Current, max 2.5 mA @ 5V DC Rockwell Automation Publication 750-UM002I-EN-P - August 2019... -
Page 32: Environmental Specifications
• Select a product with an enclosure type of at least IP54, NEMA/UL Type 12 • Provide an environmentally controlled location for the product that does not contain conductive contamination Rockwell Automation Publication 750-UM002I-EN-P - August 2019... -
Page 33: Certifications
750-UM002. (1) When product is marked, refer to rok.auto/certifications for Declarations of Conformity Certificates. (2) Underwriters Laboratories Inc. has not evaluated the Safe Torque Off, or Safe Speed Monitor option modules for safety. Rockwell Automation Publication 750-UM002I-EN-P - August 2019... -
Page 34: Ce Conformity
• IEC 61508 Part 1…7 safety of electrical/electronic/programmable electronic safety-related systems EMC Directive (2014/30/EU) • EN 61800-3 - Adjustable speed electric power drive systems - Part 3: EMC requirements and specific test methods Rockwell Automation Publication 750-UM002I-EN-P - August 2019... -
Page 35: Index
11 TÜV 33 guidelines wire 20 wire encoder 20 hardware enable jumper 18 wire guidelines 20 hazard electrical shock 16 ISO 13849-1 33 jumper 18 hardware enable 18 safety enable 18 Rockwell Automation Publication 750-UM002I-EN-P - August 2019... - Page 36 Index Notes: Rockwell Automation Publication 750-UM002I-EN-P - August 2019...
- Page 38 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, Connected Components Workbench, GuardLogix, Guardmaster, Micro800, POINT Guard I/O, PowerFlex, Rockwell Automation, Rockwell Software, SensaGuard, and TotalFORCE are trademarks of Rockwell Automation, Inc. Trademarks not belonging to Rockwell Automation are property of their respective companies.