Littelfuse AF0100 Instruction Manual

Arc-flash relay
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Tel: +1-800-832-3873
E-mail: techline@littelfuse.com
www.littelfuse.com/AF0100
AF0100
ARC-FLASH RELAY
Instruction Manual
REVISION 0-B-013118
Copyright © 2018 Littelfuse
All rights reserved.
Document Number: PM-1430-EN

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Summary of Contents for Littelfuse AF0100

  • Page 1 Tel: +1-800-832-3873 E-mail: techline@littelfuse.com www.littelfuse.com/AF0100 AF0100 ARC-FLASH RELAY Instruction Manual REVISION 0-B-013118 Copyright © 2018 Littelfuse All rights reserved. Document Number: PM-1430-EN...
  • Page 2 Page i AF0100 Arc-Flash Relay REV. 0-B-013118 This page intentionally left blank.
  • Page 3: Table Of Contents

    Page ii AF0100 Arc-Flash Relay REV. 0-B-013118 TABLE OF CONTENTS 7 USER INTERFACE ..........18 1 KEY FEATURES ............1 Reset Button ........18 Easy Installation ........1 LED Indication and Fail-Safe Operation ........1 Relay Operation ........18 Fast Error and Fault Location ....1 USB Configuration Software ....20 USB Interface ...........1...
  • Page 4 AF0100 Arc-Flash Relay REV. 0-B-013118 APPENDIX A: INSTALLATION LOG SHEET .....34 APPENDIX B: REDUNDANT TRIP CIRCUIT DESCRIPTION ..........35 APPENDIX C: AF0100 REVISION HISTORY .....36 LIST OF FIGURES AF0100 Top View (ordering option AF0100-00 shown) ........2 AF0100 with Sensor and USB View (ordering option AF0100-00 shown) ....2...
  • Page 5: Key Features

    The optical sensors used with the AF0100 have built-in LED’s The AF0100 can be used on ac or dc electrical systems and for indication of health and for easy location of arc faults. can be powered from either an ac or dc supply, or both. For The AF0100 also has one LED per optical sensor on the front all available ordering options, see section 10.7.
  • Page 6: Af0100 Top View (Ordering Option Af0100-00 Shown)

    Page 2 AF0100 Arc-Flash Relay REV. 0-B-013118 FIGURE 1. AF0100 Top View (ordering option AF0100-00 shown). FIGURE 2. AF0100 with Sensor and USB View (ordering option AF0100-00 shown).
  • Page 7: Arc-Flash Protection System Design

    In order to have complete coverage, all 5. Now, place one AF0100 trip output for each circuit bus bar sections, circuit breaker connection points, breaker in the system. If there are more than two and bolted connections must have a sensor nearby.
  • Page 8: Af0100 Typical Wiring Diagram

    Point Sensor PGA-LS20/PGA-LS30 Fiber Optic Sensor NOTES: 1. RELAY OUTPUTS SHOWN DE-ENERGIZED. 2. A TOTAL OF TWO POINT OR FIBER-OPTIC SENSORS CAN BE CONNECTED. 3. USB ‘B’ CONNECTOR. FOR CONFIGURATION, SEE SECTION 7.3. FIGURE 3. AF0100 Typical Wiring Diagram. Reset...
  • Page 9: Sensor Placement

    3 SENSOR PLACEMENT 3.3 Transformer Protection 3.1 General Guidelines The AF0100 can also be used for the protection of transformers. Two or more point sensors should be used per transformer to Optical sensors should have line-of-sight to points being monitor the primary and secondary connection terminals. For monitored.
  • Page 10: Optical Sensors

    4 OPTICAL SENSORS NOTE: Inserting and removing a sensor cable can cause a trip, depending on which terminals make The AF0100 has two inputs for optical arc-fault sensors. contact first. To guard against nuisance tripping, Two sensor types are supported:...
  • Page 11: Pga-Ls10 Photoelectric Point Sensor With Sensor Check

    50 m (164 ft). For more information on sensor A built-in LED enables the AF0100 to verify the function of cabling, see Section 6.3.2. the light sensor, wiring, and electronics. If the sensor does not detect the sensor-check LED, a sensor-fail alarm will FIGURE 4.
  • Page 12: Pga-Ls10 Connection

    Page 8 AF0100 Arc-Flash Relay REV. 0-B-013118 4.1.1 PGA-LS10 Connection (0.38) 14.2 (0.56) SENSOR 1 SENSOR 2 5V TX RX 0V 5V TX RX 0V (0.09) 23.8 (0.94) Ø4.25(0.167) MOUNTING HOLES NOTE 2 Ø8.3(0.33) SENSOR LENS RED LED FOR CIRCUIT CHECK AND VISUAL DIAGNOSTICS 24.0...
  • Page 13: Pga-Ls10 Installation

    Page 9 AF0100 Arc-Flash Relay REV. 0-B-013118 4.1.2 PGA-LS10 Installation The PGA-LS10 point sensor includes an adhesive-backed drill template for easy surface or panel-mount installation. FIGURE 6. PGA-LS10 Mounting Detail.
  • Page 14: Pga-Ls20 And Pga-Ls30 Fiber-Optic Sensors With Sensor Check

    A built-in LED enables the nuts are tightened. Pull gently on the cable to verify a secure AF0100 to verify the function of the light sensor, wiring, and connection. The maximum pull strength of the fiber is 30 N electronics.
  • Page 15: Pga-Ls20 And Pga-Ls30 Connection

    Page 11 AF0100 Arc-Flash Relay REV. 0-B-013118 4.2.4 PGA-LS20 and PGA-LS30 Connection Failure to independently shield transmitter and receiver cables can lead to an incorrect circuit check – a faulty sensor The sensor is shipped with the wires mounted in a terminal could be falsely detected as continuous.
  • Page 16: Fiber-Optic Sensor Adjustment

    100 lumen (e.g. 500 W halogen lamp) and a spare point 5. Slowly turn the metal screw on the receiver counter- sensor is required. Use the following procedure to calibrate clockwise until the AF0100 sensor-indicator LED for the sensor: that sensor changes to red, indicating a trip.
  • Page 17: Application Examples

    Page 13 AF0100 Arc-Flash Relay REV. 0-B-013118 5 APPLICATION EXAMPLES 5.1 Basic scenario: One Sensor – One Circuit Breaker No configuration necessary. Incoming Circuit Breaker Sensor Trip 1 AF0100 Sensor 1 or 2 FIGURE 8. Basic AF0100 Configuration.
  • Page 18: Total Clearing Time

    The total clearing time is: Total Clearing Time = Arc-Detection Delay + Local Circuit The AF0100 is capable of tripping a circuit breaker in less Breaker Operating Time than 5 ms (typical) from when light hits the sensor. This is not the same as the clearing time for the fault.
  • Page 19: Installation And Terminals

    3.75 0.64 The information and know-how shown in this drawing are the property of Littelfuse Startco 0.64 3.75 0.64 and may not be copied or reproduced without the written permission of Littelfuse Startco nor 16.2 95.2 16.2 0.64 3.75 0.64 may they be used in any manner directly 0.64...
  • Page 20: Power Supply

    6.1 Power Supply 6.1.3 Auxiliary DC Supply The AF0100 Arc-Flash Relay can be supplied by either a high Connect a dc supply to terminals 14 and 15, ensuring correct voltage ac or dc supply, an auxiliary low voltage supply, or polarity.
  • Page 21: Inputs And Outputs

    The output contacts are shown on the front panel in the de-energized state. Two optical sensors can be used with the AF0100. Sensor locations are identified as SENSOR 1 or SENSOR 2 on the top of the AF0100. See Section 4.
  • Page 22: User Interface

    7.1 Reset Button On, green Supply voltage is connected. The RESET button on the front panel of the AF0100 has two functions: A momentary press will reset any trip events or Flashing green Supply voltage on this terminal has...
  • Page 23 On, red TRIP input is active. The sensor is unplugged or faulty, or TRIP input is inactive. the AF0100 is without power (check the wiring and that fiber sensors are fully TRIPPED Output (Terminal 12) seated in the thumb screws).
  • Page 24: Usb Configuration Software

    Page 20 AF0100 Arc-Flash Relay REV. 0-B-013118 7.3 USB Configuration Software The configuration software will now open. Tabs show each logical section of the relay. To access the configuration software, plug in a USB connector and connect to a Windows computer.
  • Page 25: Usb Configuration Software - Screen Examples

    Page 21 AF0100 Arc-Flash Relay REV. 0-B-013118 It is not possible to view live data from the unit via USB. password in the USB configuration software will prevent The values shown for e.g. sensor state are the values at the list of connected devices from being reset via the reset the moment the USB connector was plugged in.
  • Page 26 Page 22 AF0100 Arc-Flash Relay REV. 0-B-013118...
  • Page 27 Page 23 AF0100 Arc-Flash Relay REV. 0-B-013118 The USB configuration software also shows the cause of any standing alarms in clear text.
  • Page 28: Firmware Upgrade

    1. Contact Littelfuse at relays@littelfuse.com to obtain the Sensor 1 and 2 flashing red for 3 seconds – Upgrade failed newest firmware file. 2. Connect the AF0100 to a computer using a USB cable. Unit reset AF0100 will reset See Section 7.3.
  • Page 29: Commissioning

    With no manual configuration, a freshly unpacked and wired or standard light bulbs. To test fiber sensors, a 300-500 W AF0100 will work using the factory default settings. It will halogen lamp or a powerful photo flash with a guide number trip the TRIP 1 and TRIP 2 outputs if light applied to any of at least 15 m (50 ft) is needed.
  • Page 30: Testing The Trip 1 And Trip 2 Outputs And Associated Circuit Breakers

    4. Confirm that a short red flashing light occurs periodically in each sensor. This indicates that the 1. Reset the AF0100. Ensure there are no trips or sensor circuit is being checked. errors present.
  • Page 31: Support Resources

    The most up-to-date manuals, data sheets, instruction Plug in a USB connector and connect to a computer. videos, etc. can be found on the AF0100 site at www.littelfuse.com/AF0100. After a few seconds, one new drive appears. The AF0100 is supported through the Littelfuse network of technical sales and distributors.
  • Page 32: Specifications

    Page 28 AF0100 Arc-Flash Relay REV. 0-B-013118 10 SPECIFICATIONS Isolation:........1,600 Vac Trip Time (with 0 ms intentional delay): 10.1 AF0100 Mode: Supply: Shunt Trip (non-fail-safe): Supply 1:........4 W, 24 to 48 Vdc (+10%, -25%) Normally open contact:..< 5 ms Supply 2:...
  • Page 33: Emc Tests

    1 MHz Burst ........IEC 61000-4-18 ± 1 kV differential mode Above 2,000 m (6,500 ft): ...24 Vdc supply only (line-to-line) Above 4,000 m (13,000 ft): ..Contact Littelfuse ± 2.5 kV common mode for further Voltage Interruption ......IEC 61000-4-11, information.
  • Page 34: Safety

    Page 30 AF0100 Arc-Flash Relay REV. 0-B-013118 10.4 Safety 10.5 Certification Certification: Safety: ......IEC 61010-1: 2010 + AMD1:2016 Edition Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use – Part I UL508 Industrial Control Equipment UL508 Industrial Control Equipment...
  • Page 35: Sensors

    Page 31 AF0100 Arc-Flash Relay REV. 0-B-013118 10.6 Sensors PGA-LS10 PGA-LS20 and PGA-LS30 Type: Point sensor Fiber-optic sensor 180 x 360° (half sphere) 360° along fiber Detection Zone: 0-35 mA 0-35 mA Output: Shielded 3-wire 20 AWG (0.5 mm ) elec- Shielded 3-wire 20 AWG (0.5 mm...
  • Page 36: Ordering Information

    CC - Full Conformal Coating the original purchase price of a AF0100 that is determined Supply: by Littelfuse to be defective if it is returned to the factory, 0: Dual Supply (100-240 Vac/100-250 Vdc, 24-48 Vdc) freight prepaid, within the warranty period. This warranty...
  • Page 37: Trip And Error Relays

    Page 33 AF0100 Arc-Flash Relay REV. 0-B-013118 Remote-Indication Relay Maximum Switching Capacity AC Resistive Load 10.0 DC Resistive Load VOLTAGE, V FIGURE 10. TRIP and ERROR Relays Maximum Switching Capacity.
  • Page 38: Appendix A Installation Log Sheet

    Page 34 AF0100 Arc-Flash Relay REV. 0-B-013118 APPENDIX A INSTALLATION LOG SHEET GENERAL INSTALLATION SETTINGS DEFAULT UNIT COMMENTS Date Installed Operator Comment 1 Comment 2 GENERAL System Name Description Of This Unit AF0100 Arc-Flash Relay LIGHT SENSORS Common Settings Light Immunity Lower Limit...
  • Page 39: Appendix B: Redundant Trip Circuit Description

    REV. 0-B-013118 APPENDIX B REDUNDANT TRIP CIRCUIT DESCRIPTION The AF0100 includes a redundant trip circuit which is active any time the CPU is not actively monitoring. Two conditions in which the CPU is not actively monitoring are during initialization (approximately 500ms following application of power) and in the extremely rare event that an internal CPU failure is detected.
  • Page 40 Page 36 AF0100 Arc-Flash Relay REV. 0-B-013118 APPENDIX C AF0100 REVISION HISTORY HARDWARE REVISION MANUAL RELEASE MANUAL REVISION (REVISION NUMBER ON FIRMWARE REVISION DATE PRODUCT LABEL) January 31, 2018 0-B-013118 1.00.02 December 5, 2017 0-B-120517 1.00.02 March 1, 2017 0-A-030117 1.00.01...

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