Allen-Bradley PowerFlex 750 Series User Manual
Atex option module
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Summary of Contents for Allen-Bradley PowerFlex 750 Series
- Page 1 User Manual Original Instructions PowerFlex 750-Series ATEX Option Module Catalog Number 20-750-ATEX...
- Page 2 Important User Information Read this document and the documents listed in the additional resources section about installation, configuration, and operation of this equipment before you install, configure, operate, or maintain this product. Users are required to familiarize themselves with installation and wiring instructions in addition to requirements of all applicable codes, laws, and standards.
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Page 3: Table Of Contents
Table of Contents Preface Summary of Changes ......... . . 5 About the PowerFlex 750-Series ATEX Option Module . - Page 4 Table of Contents Chapter 3 Description of Functionality ........33 Verify Operation Motors with Thermostatic Switches .
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Page 5: Preface
Preface This manual contains new and updated information as indicated in the Summary of Changes following table. Topic Page Added a mini table of contents to the beginning of each section. – Replaced European Union Directive 94/9/EU with the new directive number throughout the user –... - Page 6 Preface The PowerFlex® ATEX option module and the 11-Series I/O option module for PowerFlex 750-Series AC drives and PowerFlex 755T drive products are safety system components of the equipment and protective systems. The option modules are intended for equipment that is used in potentially explosive atmospheres (ATEX).
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Page 7: About The Powerflex 750-Series Atex Option Module
Preface The ATEX option module with the 11-Series I/O option module enables a About the PowerFlex PowerFlex 750-Series drive and PowerFlex 755T drive products to be used in 750-Series ATEX Option ATEX installations. The ATEX option module helps to reduce the risk of Module explosion due to an over-temperature condition in an ATEX approved motor. -
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-UM003D-EN-P - March 2017... -
Page 9: Safety Concepts
Chapter Safety Concepts Topic Page ATEX Directive 2014/34/EU Motor Requirements ATEX System ATEX Function Safe State Hardware Fault Tolerance Safety Reaction Time Contact Information If Safety Option Failure Occurs The PowerFlex® ATEX option module that is installed in a PowerFlex 750-Series drive or PowerFlex 755T drive products and equipped with an 11-Series I/O option module provides an ATEX-compliant safety function. -
Page 10: Motor Requirements
Chapter 1 Safety Concepts ATTENTION: Follow all procedures in the standard installation and user manuals for the ATEX-certified drive with an ATEX-certified motor. You must also follow all additional instructions in this PowerFlex 750-Series ATEX Option Module User Manual. Equipment damage and/or personal injury can result if all additional instructions in this user manual are not followed. -
Page 11: Atex System
Safety Concepts Chapter 1 The overall system includes an ATEX certified motor that is installed in a ATEX System potentially explosive atmosphere. The motor is equipped with a thermal sensor that is connected to the ATEX option input. Do not install the drive in a potentially explosive atmosphere. -
Page 12: Thermostat Trip
Chapter 1 Safety Concepts Thermostat Trip When the circuit is configured to trip with a thermostat, the ATEX option module supports a normally closed, dry-contact thermostat. The safe-off function initiates when the ATEX option module detects that the contact is open. -
Page 13: Hardware Fault Tolerance
PowerFlex 755TM drive systems If you experience a failure with any safety-certified device, contact your local Contact Information If Safety Allen-Bradley distributor to 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 14 Chapter 1 Safety Concepts Notes: Rockwell Automation Publication 750-UM003D-EN-P - March 2017...
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Page 15: Installation And Wiring
Chapter Installation and Wiring Topic Page Perform a Risk Assessment of the Operational Environment Perform a Safety Analysis of the Motor Access the Drive Control Pod Configure the Hardware Connect the Thermal Sensor Wires Install the ATEX Option Module Assembly Safe Torque Off Option Wiring Safe Speed Monitor Option Wiring Reset the Drive after an SSM Fault Detection... -
Page 16: Perform A Safety Analysis Of The Motor
Chapter 2 Installation and Wiring The ATEX safety system includes the thermal sensor in the motor and the Perform a Safety Analysis of wiring to the ATEX daughter card. Verify Operation on page 33 gives methods the Motor for functional tests of the system from the input to the ATEX daughter card, but these tests do not verify the thermal sensor response or the wiring from the motor. -
Page 17: Remove The Drive Cover For Frames 2
Installation and Wiring Chapter 2 Remove the Drive Cover for Frames 2…5 To remove the drive cover for PowerFlex 753 and 755 frame 2…5 drives, follow these steps. 1. Squeeze the locking tabs and pull out the bottom of the cover. 2. -
Page 18: Remove The Drive Cover For Frames 6 And 7
Chapter 2 Installation and Wiring Remove the Drive Cover for Frames 6 and 7 To remove the drive cover for PowerFlex 753 and 755 frames 6 and 7 drives, follow these steps. 1. Loosen the door screws. 2. Gently pry the door open and remove the door. 3. -
Page 19: Remove The Drive Cover For Frames 8
Installation and Wiring Chapter 2 b. Lift the cradle until the latch engages. Remove the Drive Cover for Frames 8…12 To remove the drive cover for PowerFlex 755 AC drives and PowerFlex 755T drive products, frame 8…12, follow these steps. 1. - Page 20 Chapter 2 Installation and Wiring 4. Loosen the retention screw. 5. Lift the cradle until the latch engages. Rockwell Automation Publication 750-UM003D-EN-P - March 2017...
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Page 21: Configure The Hardware
Installation and Wiring Chapter 2 The ATEX option module can be used in two different configurations: Configure the Hardware • ATEX option module and 11-Series I/O option module that is used an additional safety option module. See page • ATEX option module and 11-Series I/O option module that is used an additional safety option module, such as a Safe Torque Off (catalog number 20-750-S) or Safe Speed Monitor (catalog number 20-750-S1) option module. -
Page 22: Safety Enable Jumper Locations
Chapter 2 Installation and Wiring Safety Enable Jumper Locations Figure 4 for the location of the safety enable jumper on the main control board of the PowerFlex 750-Series drives and 755T drive products. IMPORTANT PowerFlex 755 floor mount Frame 8 drives and larger do not have a safety enable jumper. -
Page 23: Atex Option Module And 11-Series I/O Option Module
Installation and Wiring Chapter 2 ATEX Option Module and 11-Series I/O Option Module without a Safety Option Module To configure the ATEX option module with 11-Series I/O option module for use without a Safe Torque Off (catalog number 20-750-S) or Safe Speed Monitor (catalog number 20-750-S1) option module, follow these steps. -
Page 24: With A Safety Option Module
Chapter 2 Installation and Wiring ATEX Option Module and 11-Series I/O Option Module with a Safety Option Module To configure the ATEX option module with 11-Series I/O option module for use with a Safe Torque Off (catalog number 20-750-S) or Safe Speed Monitor (catalog number 20-750-S1) option module, follow these steps. -
Page 25: Assemble The Atex And 11-Series I/O Option Modules
Installation and Wiring Chapter 2 Configuration of the safety enable jumper on the main control board is a requirement of each safety option module. For more information on these requirements, see the specific option module user manual: • PowerFlex Safe Torque Off User Manual, publication 750-UM002 •... -
Page 26: Connect The Thermal Sensor Wires
Chapter 2 Installation and Wiring 2. Pass the tips of the standoff pins through both boards so that the tip completely expands. Connect the thermal sensor wires to the removable terminal block of the Connect the Thermal Sensor ATEX option module. Wires Table 2 - ATEX Terminal Designations 20-750-ATEX... -
Page 27: Installation Requirements
Installation and Wiring Chapter 2 Installation Requirements Installation must meet the radio frequency (RF) emission compliance and installation requirements that are outlined in the installation instructions: • PowerFlex 750-Series AC Drives Installation Instructions, publication 750-IN001. • PowerFlex 750-Series Products with TotalFORCE Control Installation Instructions, publication 750-IN100. - Page 28 Chapter 2 Installation and Wiring 2. Route the thermal sensor wires that are attached to the ATEX removable terminal block under the lower mounting bracket. TIP Leave enough length in the cable so that you can remove the option module in the future, if needed. PowerFlex 755 Drive Shown 3.
- Page 29 Installation and Wiring Chapter 2 4. Firmly press the 11-Series I/O option module edge connector into port 4 or port 5. IMPORTANT The ATEX option module that is mounted on an 11-Series I/O option module can be installed only in drive ports 4 or 5. PowerFlex 755 Drive Shown 5.
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Page 30: Safe Torque Off Option Wiring
Chapter 2 Installation and Wiring The ATEX option module with 11-Series I/O option module can be used with Safe Torque Off Option the Safe Torque Off (catalog number 20-750-S) option module. For Wiring information about the Safe Torque Off option module, see the PowerFlex Safe Torque Off User Manual, publication 750-UM002. -
Page 31: Safe Speed Monitor Option Wiring
Installation and Wiring Chapter 2 The ATEX option module with 11-Series I/O option module can be used with Safe Speed Monitor Option the Safe Speed Monitor (catalog number 20-750-S1) option module. For Wiring information about the Safe Speed Monitor option module, see the Safe Speed Monitor Option Module for PowerFlex 750-Series AC Drives Safety Reference Manual, publication 750-RM001. -
Page 32: Reset The Drive After An Ssm Fault Detection
Chapter 2 Installation and Wiring Operating Principle The dry contact on the 11-Series I/O option module interrupts the safe stop input channel 0 (SS_IN_CH0 pin S12) on the Safe Speed Monitor option module. The maximum SIL capability of the ATEX function is SIL 1. The maximum SIL capability of the equipment that uses the Safe Speed Monitor option module remains the same. -
Page 33: Description Of Functionality
Chapter Verify Operation Topic Page Description of Functionality Motors with Thermostatic Switches Motors with Positive Temperature Coefficient (PTC) Devices Functional Proof Testing without a Test Fixture Test the safety function for proper operation after initial installation and after the drive system is modified. We recommend annual functional testing during regular maintenance intervals. -
Page 34: Motors With Thermostatic Switches
Chapter 3 Verify Operation Thermostatic switches are arranged in series throughout the motor. Typically Motors with Thermostatic there is a switch, or a pair of switches, in each motor turn. Each switch opens Switches when the local temperature is too high. The ATEX option module with 11-Series I/O option module can detect an over-temperature event anytime the circuit between the terminals is open. -
Page 35: Motors With Positive Temperature Coefficient (Ptc) Devices
Verify Operation Chapter 3 PTC-type devices are arranged in series throughout the motor. The resistance Motors with Positive of each PTC goes up as the motor temperature rises. The ATEX option Temperature Coefficient module with 11-Series I/O option module can detect an over-temperature (PTC) Devices event. -
Page 36: Functional Proof Testing Without A Test Fixture
Chapter 3 Verify Operation Short Circuit Functional Proof Test To perform the PTC device short circuit functional proof test, follow these steps. 1. Close SW1. 2. Open SW2. 3. Run the drive. 4. Close SW2. If the system is working correctly, the drive faults due to a motor over-temperature event detection. - Page 37 Verify Operation Chapter 3 6. Power up the drive. If the ATEX safety function is operating correctly, an over temperature fault is enunciated. 7. If a safety card is present, check parameter 933 [Start Inhibits] and verify that bit 2 [Enabled] and bit 7 [Safety] are set to high. 8.
- Page 38 Chapter 3 Verify Operation Notes: Rockwell Automation Publication 750-UM003D-EN-P - March 2017...
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Page 39: Parameter 41 [Atex Sts]
Chapter ATEX Monitoring Topic Page Parameter 41 [ATEX Sts] ATEX Fault Descriptions ATEX Configuration Errors Restart the Drive after an Over-temperature Fault This section describes the parameter 41 [ATEX Sts] bit functionality, the ATEX faults and configuration errors, and how to restart the drive after an over-temperature fault. -
Page 40: Atex Fault Descriptions
Chapter 4 ATEX Monitoring Table 3 contains a list of ATEX-specific faults, a description, and the corrective ATEX Fault Descriptions action (where applicable). Table 3 - ATEX Faults, Descriptions, and Actions Event Fault/Alarm Text Type Fault Description/Corrective Action Action An over-temperature condition has been xx011 PTC Over Temp detected in the motor, or the sensor path has... -
Page 41: Restart The Drive After An Over-Temperature Fault
ATEX Monitoring Chapter 4 The drive enters a stop condition and stops current flow to the motor when an Restart the Drive after an over-temperature condition is sensed in the motor. Over-temperature Fault To restart the drive, follow these steps. 1. - Page 42 Chapter 4 ATEX Monitoring Notes: Rockwell Automation Publication 750-UM003D-EN-P - March 2017...
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Page 43: General Specifications
Appendix Specifications and Certifications Topic Page General Specifications 11-Series I/O Option Module Terminal Block Specifications Environmental Specifications Certifications This appendix provides specifications for the PowerFlex® ATEX option module with the 11-Series I/O option module. This table provides general specifications. General Specifications Attribute Value Safety integrity level... -
Page 44: Safety Data
Appendix A Specifications and Certifications The PFD and PFH values in Table 5 were calculated based on equations in Safety Data IEC 61508. This table shows the worst case calculated values for drive frames 1…10 with a proof test interval of 20 years. IMPORTANT A proof test is not defined in this user manual. -
Page 45: Certifications
Specifications and Certifications Appendix A Table 6 - Environmental Pollution Degree Description According to EN 61800-5-1 Surrounding Environment Conductive Contamination Acceptable Enclosures Pollution Degree Allowed by Pollution Degree Pollution degree 1 and 2. No possibility of conductive dust. All enclosures are acceptable. A possibility of conductive dust is Enclosure that meets or exceeds Pollution degree 3 and 4. - Page 46 Appendix A Specifications and Certifications Notes: Rockwell Automation Publication 750-UM003D-EN-P - March 2017...
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Page 47: Index
Index Numerics 20-750-1132C-2R 7 EnC 30 20-750-1132D-2R 7 EnNO 30 20-750-1133C-1R2T 7 explosion risk 7 20-750-ATEX 7 explosive atmosphere 9 20-750-S 21 20-750-S1 21 failure analysis 13 fault desriptions ATEX ATEX-specific faults 40 fault reset sequence 32 circuitry 12 configuration errors fault text X Port 06 40 ATX VoltageLoss 40... -
Page 48: Rockwell Automation Publication 750-Um003D-En-P - March
Index safe speed monitor parameters P44 32 motor P45 32 ATEX certified 11 safety ATEX guidelines 10 analysis 6 certification nameplate 10 configuration switch (S1-1) 21 dust environments 10 enable jumper 22 flameproof construction 10 configure 25 gas environments 10 function test 33 insulation fault 11 input signal trigger 13... - Page 50 How Are We Doing? form at http://literature.rockwellautomation.com/idc/groups/literature/documents/du/ra-du002_-en-e.pdf. 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, PowerFlex, TotalFORCE, Rockwell Automation, and Rockwell Software are trademarks of Rockwell Automation, Inc. Trademarks not belonging to Rockwell Automation are property of their respective companies.
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