Allen-Bradley FLEX Ex 1797-PS2E2 Installation Instructions Manual
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Allen-Bradley FLEX Ex 1797-PS2E2 Installation Instructions Manual

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FLEX Ex Power Supply
Catalog Number 1797-PS2E2
Topic
Installation Instructions
Publication
1797-IN535F-EN-P - August 2017
Page
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Summary of Contents for Allen-Bradley FLEX Ex 1797-PS2E2

  • Page 1: Table Of Contents

    Installation Instructions FLEX Ex Power Supply Catalog Number 1797-PS2E2 Topic Page Important User Information About the Power Supply Understand System Planning Installation in Zone 1, 22 Electrostatic Charge Outputs Mount the 1797-PS2E2 Power Supply Customer Connections Typical Wiring Configurations Mounting Dimensions and Terminal Base Assignments for the 1797-PS2E2 Power Supply Repair FLEX Ex Power Supply, cat.

  • Page 2: Important User Information

    2 FLEX Ex Power Supply Important User Information Solid state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls (Publication SGI-1.1 available from your local Rockwell Automation sales office or online at http://literature.rockwellautomation.com) describes some important differences between solid state equipment and hard-wired electromechanical devices.

  • Page 3: About The Power Supply

    FLEX Ex Power Supply 3 This equipment is considered Group 1, Class A industrial equipment ATTENTION according to IEC/CISPR Publication 11. Without appropriate precautions, there may be potential difficulties ensuring electromagnetic compatibility in other environments due to conducted as well as radiated disturbance. This equipment is supplied as enclosed equipment.

  • Page 4: Understand System Planning

    4 FLEX Ex Power Supply The 1797-PS2E2 is a 24V dc in/quad-Ex dc out power supply in an flame-proof enclosure with increased safety input and output terminations. The 24V dc gland is an M20 x 1,5 and can accept a cable from 6…12 mm (0.267…0.472 in.) in diameter.
  • Page 5 FLEX Ex Power Supply 5 The total number of power supplies needed depends on the modules used and the total system configuration. The following illustration shows how this example may be configured. Unsafe Hazardous Area Spare IS Pwr Ex d/e Power IS Pwr IS 1797 I/O...

  • Page 6: Installation In Zone

    6 FLEX Ex Power Supply Make certain that you only connect intrinsically-safe power supplies to other intrinsically-safe system modules or adapters to maintain the integrity of the intrinsically-safe backplane. 41307 Installation in Zone 1, 22 The 1797-PS2E2 power supply has a protection factor of IP65. Refer to the specifications table for the IS module type.
  • Page 7 FLEX Ex Power Supply 7 Installation and Commissioning The power supply unit can be located in Zones 1, 2, and 22 as stated on its label. The output circuits are according to the ignition protection class Ex ib and can be installed in Zones 1, 2, and 22. When installing, you must heed the EC- type examination certificate (especially the special conditions) and the applicable national and local construction, installation, and operating regulations.

  • Page 8: Electrostatic Charge

    8 FLEX Ex Power Supply Electrostatic Charge Protect the system against electrostatic charge. Post a sign near this module. WARNING Avoid electrostatic charging. ADVERTÊNCIA! PREVENIR CONTRA O ACÚMULO DE CARGA ELETROSTÁTICA. For your convenience, a sign that can be cut out and posted is included on the last page of these installation instructions.

  • Page 9: Outputs

    FLEX Ex Power Supply 9 IEC Hazardous Location The following applies to products with the IECEx certification: • Are intended for use in areas in which explosive atmospheres caused by gases, vapors, mists, or air are likely to occur only infrequently and for short periods.

  • Page 10: Mount The 1797-Ps2E2 Power Supply

    10 FLEX Ex Power Supply Mount the 1797-PS2E2 Power Supply Follow these directions to properly install the 1797-PS2E2 power supply. Refer to the Installation and Commissioning section, page 7, for important precautions and considerations. Use star washers and nuts to make sure you have a good electrical ATTENTION connection.

  • Page 11: Customer Connections

    FLEX Ex Power Supply 11 6. Replace the lid of the Ex e terminal box. 7. Screw the lid back into place making sure all of the screws are tight. Customer Connections Type of Power Input IS Limiters Dual Input Voltage and Current IS Isolation IS Power Output...

  • Page 12: Mounting Dimensions And Terminal Base Assignments For The

    12 FLEX Ex Power Supply Mounting Dimensions and Terminal Base Assignments for the 1797-PS2E2 Power Supply 218 (8.58) Mounting Dimensions 194 (7.64) mm (in.) 174 (6.85) Height 140 (5.51) (6.85) (5.87) Chassis Ground (11) 10 (0.39) 2 Holes 41298A Terminal Base Assignments European DC Power Input IS Power Output -V +V -V...

  • Page 13: Flex Ex Power Supply, Cat. No. 1797-Ps2E2

    FLEX Ex Power Supply 13 Specifications Table 1 FLEX Ex Power Supply, cat. no. 1797-PS2E2 Attribute Value Input connectors 24V dc Terminals 1, 2, 4, 5 Voltage range 18…32V Input frequency Current consumption 3.1…1.6 A Ripple 5% ac Input power entrance Increased safety Output connectors Terminals 10…17...
  • Page 14 14 FLEX Ex Power Supply Table 2 Environmental Specifications Attribute Value Operating temperature IEC 60068-2-1 (Test Ad, Operating Cold), IEC 60068-2-2 (Test Bd, Operating Dry Heat), IEC 60068-2-14 (Test Nb, Operating Thermal Shock): -20…70 °C (-4…158 °F) Storage temperature IEC 60068-2-1 (Test Ab, Unpackaged Nonoperating Cold), IEC 60068-2-2 (Test Bb, Unpackaged Nonoperating Dry Heat), -40…85 °C (-40…185 °F) Relative humidity...

  • Page 15: Ferrite Beads

    FLEX Ex Power Supply 15 Ferrite Beads Pass all IS power-supply output wires through the ferrite bead before connecting the cable to the power supply. 30889 WARNING Avoid electrostatic charging. ADVERTÊNCIA! PREVENIR CONTRA O ACÚMULO DE CARGA ELETROSTÁTICA. Publication 1797-IN535F-EN-P - August 2017...
  • Page 16 Outside United States Please contact your local Rockwell Automation representative for return procedure. Allen-Bradley, Rockwell Automation, ControlLogix, RSLinx, TechConnect, and FLEX I/O are trademarks of Rockwell Automation, Inc. Trademarks not belonging to Rockwell Automation are property of their respective companies.

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