Allen-Bradley FLEX Ex 1797-PS1E Installation Instructions Manual

Allen-Bradley FLEX Ex 1797-PS1E Installation Instructions Manual

85-253v ac in/quad-ex dc out power supply
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FLEX Ex 85-253V AC In/Quad-Ex DC Out Power
Supply
(Cat. No. 1797-PS1E)
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://www.ab.com/manuals/gi) describes some
important differences between solid state equipment and hard-wired electromechanical
devices. Because of this difference, and also because of the wide variety of uses for solid
state equipment, all persons responsible for applying this equipment must satisfy
themselves that each intended application of this equipment is acceptable.
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.
The examples and diagrams in this manual are included solely for illustrative purposes.
Because of the many variables and requirements associated with any particular installation,
Rockwell Automation, Inc. cannot assume responsibility or liability for actual use based on
the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to use of
information, circuits, equipment, or software described in this manual.
Reproduction of the contents of this manual, in whole or in part, without written permission
of Rockwell Automation, Inc. is prohibited.
Throughout this manual we use notes to make you aware of safety considerations.
Allen-Bradley

Installation Instructions

Publication
1797-5.33 - December 2003

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Summary of Contents for Allen-Bradley FLEX Ex 1797-PS1E

  • Page 1: Installation Instructions

    Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc. is prohibited. Throughout this manual we use notes to make you aware of safety considerations. Allen-Bradley Publication 1797-5.33 - December 2003...
  • Page 2 2 FLEX Ex 85-253V AC In/Quad-Ex DC Out Power Supply Important User Information Identifies information about practices or circumstances that can cause an explosion in a WARNING hazardous environment, which may lead to personal injury or death, property damage, or economic loss.
  • Page 3 4mm to 8mm in diameter. Features include: • 85-253V ac supply source • four channels, 8.5W output each channel • outputs are IS galvanically isolated from the source Allen-Bradley • all channels are independently IS limited Publication 1797-5.33 - December 2003...
  • Page 4: Understand System Planning

    4 FLEX Ex 85-253V AC In/Quad-Ex DC Out Power Supply Understand System Planning Part of system planning is determining what modules are needed for the application, how many power supplies are needed, how to best partition the system, and where to locate the system cabinets. A key task in the development cycle is determining the number of power supply outputs (thus power supplies) you will need.
  • Page 5 Depending upon the module-type, galvanic isolation (channel-to-channel within the module) may or may not be provided. See the module’s specifications for more information. Allen-Bradley Publication 1797-5.33 - December 2003...
  • Page 6 6 FLEX Ex 85-253V AC In/Quad-Ex DC Out 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-PS1E power supply has a protection factor of IP65.
  • Page 7 Corrosion protection can be achieved by using tinned terminal ends. Before opening the EEx “e” terminal box (e.g. for maintenance purposes), it Allen-Bradley must be cleaned of all dust particles to ensure that no dust can enter the box. Publication...
  • Page 8: Electrostatic Charge

    8 FLEX Ex 85-253V AC In/Quad-Ex DC Out Power Supply Electrostatic Charge Preventing Electrostatic Discharge ATTENTION This equipment is sensitive to electrostatic discharge, which can cause internal damage and affect normal operation. Follow these guidelines when you handle this equipment: •...
  • Page 9 You can daisy chain the hazardous incoming power wiring to further supplies to simplify system wiring. Keep hazardous and IS-safe wiring separated in a ATTENTION suitable fashion. Do not leave long, excess wiring that Allen-Bradley could bridge between the hazardous and safe areas. Publication 1797-5.33 - December 2003...
  • Page 10: Customer Connections

    10 FLEX Ex 85-253V AC In/Quad-Ex DC Out Power Supply 6. Replace the lid of the EEx “e” terminal box. 7. Screw the lid back into place making sure all of the screws are tight. Customer Connections IS Power Output Type of Power Input IS Limiters Voltage and Current...
  • Page 11 II 2G EEx de [ib] IIC T4 (DMT 02 ATEX E253 X) Zone 22 II 3D IP54 T90C Input Connectors 85-253V ac, Um = 253V ac Terminals 1, 2, 4, 5 (earth symbol) Allen-Bradley Voltage Range 85-253V ac Input Frequency 47-63Hz Current Consumption 0.9A...
  • Page 12 12 FLEX Ex 85-253V AC In/Quad-Ex DC Out Power Supply Specifications - 1797-PS1E (Continued) Ripple Input Power Entrance Increased safety Output Connectors Terminals 10-17 Output Power 4x8.5W Inset Voltage Range 85-253V ac Voltage U <9.5V Current I <1A (IIC) <500 nF <8 µH (IIC) Maximum Output Cable...
  • Page 13 EN 50281-1-1; Electrical apparatus protected by enclosure C-Tick Australian Radiocommunications Act, compliant with: AS/NZS CISPR11; Industrial Emissions 1. See the Product Certification link at www.ab.com for Declarations of Conformity, Certificates, and other certification details. Allen-Bradley Publication 1797-5.33 - December 2003...
  • Page 14: Ferrite Beads

    14 FLEX Ex 85-253V AC In/Quad-Ex DC Out Power Supply Ferrite Beads Pass all IS power supply output wires through the ferrite bead before connecting the cable to the power supply. 30889 Attention: Avoid electrostatic charge. FLEX Ex is a trademark of Rockwell Automation. ControlNet is a trademark of ControlNet International.
  • Page 15 FLEX Ex 85-253V AC In/Quad-Ex DC Out Power Supply 15 Notes: Allen-Bradley Publication 1797-5.33 - December 2003...
  • Page 16: Rockwell Automation Support

    Rockwell Automation Support Rockwell Automation provides technical information on the web to assist you in using our products. At http://support.rockwellautomation.com, you can find technical manuals, a knowledge base of FAQs, technical and application notes, sample code and links to software service packs, and a MySupport feature that you can customize to make the best use of these tools.

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