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
Stop Category Wiring Examples ....... . 30 Operation Rockwell Automation Publication 750-UM002H-EN-P - February 2017... - Page 4 Machinery Directive (2006/42/EC) ......38 EMC Directive (2004/108/EC and 2014/30/EU) ... 38 Rockwell Automation Publication 750-UM002H-EN-P - February 2017...
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Page 5: Preface
Updated jumper setting figures and added figure for PowerFlex 755T drive products. 20…21 Added Remove Power From the Drive System. Updated Stop Category Wiring Examples with Guardmaster® safety relays. 30…33 Added Stop Category Wiring Example with POINT Guard I/O™ modules. Updated Environmental Specifications table. Rockwell Automation Publication 750-UM002H-EN-P - February 2017... -
Page 6: Conventions
The Safe Torque Off (STO) function is used to prevent unexpected motor rotation in the event of 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-UM002H-EN-P - February 2017... -
Page 7: Additional Resources
Describes important differences between solid-state control and hardwired electromechanical State Control, publication SGI-1.1 devices. 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-UM002H-EN-P - February 2017... - Page 8 Preface Notes: Rockwell Automation Publication 750-UM002H-EN-P - February 2017...
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Page 9: Certification
All of 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-UM002H-EN-P - February 2017... -
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-UM002H-EN-P - February 2017... -
Page 11: Stop Category Definitions
IMPORTANT Your specific application determines the time frame for the proof test interval. Verify operation of safety function after drive installation, modification, or maintenance. Refer to Verify Operation page 27 for more information. Rockwell Automation Publication 750-UM002H-EN-P - February 2017... -
Page 12: Pfd And Pfh Definitions
3.52E-04 PFH (1/hour) 2.86E-09 3.15E-09 3.45E-09 3.75E-09 4.05E-09 SIL CL Category 1 (1oo2) 1 (1oo2) 1 (1oo2) 1 (1oo2) 1 (1oo2) Mission time 20 years 20 years 20 years 20 years 20 years Rockwell Automation Publication 750-UM002H-EN-P - February 2017... -
Page 13: Safe State
Repeated requests of the safety function for less than the reaction time can result in a spurious detection of a fault. Figure 1 - Safety Reaction Timing Diagram Safe Torque Off Safety Reaction Time Rockwell Automation Publication 750-UM002H-EN-P - February 2017... -
Page 14: Considerations For Safety Ratings
If you experience a failure with any safety-certified device, contact your local Contact Information if Safety Rockwell Automation 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 affected and a record is made of the failure. - Page 15 ATTENTION: The following information is merely a guide for proper installation. Rockwell Automation, Inc. 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: Access The Drive Control Pod
1. Remove drive cover. PowerFlex 755 and PowerFlex 753 Drives, Frames 1…5 a. Squeeze locking tabs and pull out bottom of cover. b. Pull cover down and away from the chassis Rockwell Automation Publication 750-UM002H-EN-P - February 2017... - Page 17 PowerFlex 755 and PowerFlex 753 Drives, Frames 8…10 PowerFlex 755T Drive Products, Frames 8…12 PowerFlex 750-Series Drives, Frames 8…10 are shown a. Remove top screws. b. Loosen bottom screws. c. Remove the right front cover. Rockwell Automation Publication 750-UM002H-EN-P - February 2017...
- Page 18 PowerFlex 755 and PowerFlex 753 Drives, Frame 1 a. Loosen the retention screw. b. Use a screwdriver to release the chassis cover locking tabs. c. Lift the chassis until the latch engages. Rockwell Automation Publication 750-UM002H-EN-P - February 2017...
- Page 19 PowerFlex 755 and PowerFlex 753 Drives, Frames 8…10 and PowerFlex 755T Drive Products, Frames 8…12 PowerFlex 755 and PowerFlex 753 Drives, Frames 8…10 are shown a. Loosen the retention screw. b. Lift the cradle until the latch engages. Rockwell Automation Publication 750-UM002H-EN-P - February 2017...
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Page 20: 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 (frame 8, 9, and 10) do not have a safety enable jumper. Rockwell Automation Publication 750-UM002H-EN-P - February 2017... -
Page 21: Remove Power From The Drive System
For PowerFlex 755 and PowerFlex 753 Drives (Frames 1…7), measure the DC-bus voltage at the Power Terminal Block by measuring between the: • +DC and -DC terminals • +DC terminal and the chassis • -DC terminal and the chassis. Rockwell Automation Publication 750-UM002H-EN-P - February 2017... -
Page 22: Verify Zero Voltage On Powerflex 755T Drive Products
(FD1) testpoints R, S, and T. • Measure +DC to -DC, +DC to chassis GND, and -DC to chassis GND using the DC bus testpoints +DC and -DC. The voltage at all test points must be 0 volts. Rockwell Automation Publication 750-UM002H-EN-P - February 2017... - Page 23 Measure +DC to -DC, +DC to chassis GND, and -DC to chassis GND using the DC bus testpoints +DC and -DC. Rockwell Automation Publication 750-UM002H-EN-P - February 2017...
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Page 24: 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 over-tighten retaining screws. PowerFlex 755 and PowerFlex 753 Drives, Frames 8…10 are shown Rockwell Automation Publication 750-UM002H-EN-P - February 2017... -
Page 25: Wire The Safety Option Module
EN 61800-3 and the EMC Directive as described in these publications: • PowerFlex 750-Series AC Drive Installation Instructions, publication 750-IN001 • PowerFlex 750-Series Products with TotalFORCE™ Control Installation Instructions, publication 750-IN100 Rockwell Automation Publication 750-UM002H-EN-P - February 2017... -
Page 26: Power Supply Requirements
If not installed, the drive faults upon power up. Make sure that the safety enable (SAFETY) jumper on the main control board is removed. Refer to page 20 for the location. Rockwell Automation Publication 750-UM002H-EN-P - February 2017... -
Page 27: Verify Operation
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-UM002H-EN-P - February 2017... - Page 28 Chapter 2 Installation and Wiring Notes: Rockwell Automation Publication 750-UM002H-EN-P - February 2017...
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Page 29: Operation
OFF state, the drive can provide energy for up to 180° of rotation in a 2-pole motor before torque production in the motor ceases. Rockwell Automation Publication 750-UM002H-EN-P - February 2017... -
Page 30: 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 8…12 Rockwell Automation Publication 750-UM002H-EN-P - February 2017... - Page 31 A single fault detected on the Guardmaster safety input circuits results in the lock- Fault detection out of the system at the next operation and does not cause loss of the safety function. Rockwell Automation Publication 750-UM002H-EN-P - February 2017...
- Page 32 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-UM002H-EN-P - February 2017...
- Page 33 Fault detection 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-UM002H-EN-P - February 2017...
- Page 34 STO feature 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-UM002H-EN-P - February 2017...
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Page 35: Specifications, Certifications, And Ce Conformity
(1) Refer to Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1. (2) Safety outputs need additional fuse for reverse voltage protection of the control circuit. Install a 6 A slow-blow or 10 A fast- acting fuse. Rockwell Automation Publication 750-UM002H-EN-P - February 2017... -
Page 36: 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-UM002H-EN-P - February 2017... -
Page 37: Certifications
(1) When product is marked, refer to http://www.rockwellautomation.com/global/certification/overview.page for Declarations of Conformity Certificates. (2) Underwriters Laboratories Inc. has not evaluated the Safe Torque Off, or Safe Speed Monitor option modules for functional safety. Rockwell Automation Publication 750-UM002H-EN-P - February 2017... -
Page 38: Ce Conformity
• IEC 61508 Part 1…7 Functional safety of electrical/electronic/ programmable electronic safety-related systems EMC Directive (2004/108/EC and 2014/30/EU) • EN 61800-3 - Adjustable speed electric power drive systems - Part 3: EMC requirements and specific test methods Rockwell Automation Publication 750-UM002H-EN-P - February 2017... - Page 40 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, 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.