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Summary of Contents for Littelfuse Startco EL731
- Page 1 3714 Kinnear Place Saskatoon, SK Canada S7P 0A6 Ph: (306) 373-5505 Fx: (306) 374-2245 www.littelfuse.com/relayscontrols EL731 MANUAL AC/DC SENSITIVE EARTH-LEAKAGE RELAY REVISION 6-F-032816 Copyright © 2016 by Littelfuse Startco All rights reserved. Document Number: PM-1005-EN Printed in Canada.
- Page 2 Page i EL731 AC/DC Sensitive Earth-Leakage Relay Rev. 6-F-032816 Factory default password is 1111 New Password See Section 3.2.4.
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Page 3: Table Of Contents
Performance Test ........... 20 1.2.6 Communications Interface ......1 Maintenance ............20 Installation ..............1 Appendix A EL731 Menu Map ........22 2.1 System Wiring ............1 Appendix B System Parameters & Setup Record ..24 2.1.1 Supply Voltage ..........2 Appendix C EL731 Revision History ...... - Page 4 Page iii EL731 AC/DC Sensitive Earth-Leakage Relay Rev. 6-F-032816 This page intentionally left blank.
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Page 5: Introduction
Outline and details for panel-mounting an EL731 are Earth-leakage current is sensed by one or two EFCT- shown in Fig. 1. Insert the EL731 through the cutout and series core-balance zero-sequence current transformers. slip the panel-mount clamp over the EL731 body. Slide... -
Page 6: Supply Voltage
Figs. 9, 10 and 11 for current-sensor dimensional DHCP. drawings. If the EL731 is being set up for first time, it is Using shielded twisted-pair cable, connect CT2 to recommended to only have one EL731 connected to the terminals 10 and 11 and connect the shield to terminal 9. -
Page 7: El731 Outline And Mounting Details
Rev. 6-F-032816 To calibrate, connect an EFCT-series current sensor to The CT LED will flash, during the calibration process, the EL731 and ensure that no CT-primary current is which takes about 30 seconds. present. Apply EL731 supply voltage and navigate to... -
Page 8: Ac700-Smk Outline And Mounting Details
Page 4 EL731 AC/DC Sensitive Earth-Leakage Relay Rev. 6-F-032816 NOTES: 1. DIMENSIONS IN MILLIMETRES (INCHES). 2. SIDE VIEW SHOWN WITH 35 MM x 7.5 MM TOP-HAT RAIL. 112.0 (4.41) 100.0 12.0 (3.94) (0.47) M4 OR 8-32 TAP 112.0 (4.41) MOUNTING DETAIL... -
Page 9: Connection Diagram
AND CT2 IS 20 TO 6,000 HZ. USE ONE OR BOTH TRIP INPUTS TO PROVIDE DESIRED FREQUENCY RESPONSE. SEE SECTION 4. ALARM 4. RELAY CONTACTS SHOWN WITH THE EL731 DE-ENERGIZED. EL731 5. ALTERNATE CT LOCATIONS. 6. IF AN EARTH-FAULT OCCURS IN THE RECTIFIER PORTION OF AN ASD, THIS CONTROL SCENARIO MIGHT BE INSUFFICIENT. -
Page 10: Ac700-Cvr-00 Weatherproof Cover Outline
Page 6 EL731 AC/DC Sensitive Earth-Leakage Relay Rev. 6-F-032816 TOP VIEW 131.7 (5.19) FRONT VIEW SIDE VIEW 92.0 (3.62) R=4.8 (0.19) MAXIMUM 160.0 MINIMUM (6.30) PANEL CUTOUT DETAIL NOTES: 1. DIMENSIONS SHOWN IN MILLIMETRES (INCHES). 2. TIGHTENING TORQUE 0.02 N·M (0.18 LBF·IN). -
Page 11: Ac700-Cvr-00 Weatherproof Cover Installation
Page 7 EL731 AC/DC Sensitive Earth-Leakage Relay Rev. 6-F-032816 INSERT THE EL731 THROUGH THE OPENING OF THE WEATHERPROOF WINDOW. FRONT-PANEL INSERT ASSEMBLY INTO PANEL AND SECURE WITH DETAILS NOT SHOWN. THE PANEL-MOUNT CLAMP . REFER TO SECTION 2 FOR DETAILS. -
Page 12: El731 With Installed Ethernet/Ip™ Communications Upgrade Adapter
Page 8 EL731 AC/DC Sensitive Earth-Leakage Relay Rev. 6-F-032816 FIGURE 7. EL731 with installed EtherNet/IP™ Communications Upgrade Adapter (AC700-CUA-03). FIGURE 8. EL731 with Firmware Upgrade Module (AC700-CUA-00). -
Page 13: Operation And Setup
The ENTER button is used to select menu items and to of full scale (5 A, depending upon the primary turns choose settings. setting) and as a bar graph. All EL731 settings can be accessed using the EL731 menu system or the optional network communications 3.2.1 M ETERING interface. -
Page 14: Setup
The Calibrate menu applies to CT1 (0 to 90 Hz). When detected on CT1 or CT2. CT1 is used, the EL731 must be calibrated after installation. Fail-safe or non-fail-safe mode selection is available. See Section 2.2. -
Page 15: Miscellaneous Configuration
Menu: Setup | System Config | Reset Pwd En Used to enable and change the EL731 reset password (four-character numeric field). When enabled, the reset password must be entered to reset the EL731. The default reset password is 1111. 3.2.3.5.3 M... -
Page 16: Efct-1 Outline And Mounting Details
Page 12 EL731 AC/DC Sensitive Earth-Leakage Relay Rev. 6-F-032816 NOTES: 1. DIMENSIONS IN MILLIMETRES (INCHES). 2. MOUNTING SCREWS: M4 OR 8-32. 3. PRESS MOUNTING FEET IN PLACE USING INSTALLATION TOOL PROVIDED. 4. RoHS COMPLIANT. 5. EN 60044-1 COMPLIANT. 121.0 121.0 (4.76) -
Page 17: Efct-2 Outline And Mounting Details
Page 13 EL731 AC/DC Sensitive Earth-Leakage Relay Rev. 6-F-032816 NOTES: 1. DIMENSIONS IN MILLIMETRES (INCHES). 2. MOUNTING SCREWS: M5 OR 10-32. 3. RoHS COMPLIANT. 4. EN 60044-1 COMPLIANT. 215.0 (8.46) 215.0 26.5 162.0 (8.46) (6.38) (1.04) M5 OR 10-32 TAP... -
Page 18: Efct-26 Outline And Mounting Details
Page 14 EL731 AC/DC Sensitive Earth-Leakage Relay Rev. 6-F-032816 68.0 68.0 (2.68) (2.68) 17.0 34.0 (0.67) (1.34) M4 OR 8-32 TAP M5 SCREWS MOUNTING DETAIL 25.0 26.5 (0.98) (1.04) E F C T- 2 6 E A R T H FA U LT C T... -
Page 19: Theory Of Operation
The 90 Hz Low Pass filter selection configures the signal, and its magnitude can be accurately measured EL731 to respond to only the low end of its frequency across a wide frequency range. The EL731 can measure range–20 to 90 Hz. -
Page 20: Ct2 3 Khz Low Pass Filter
4.2.3 CT2 3 kHz L ILTER The 3 kHz Low Pass filter selection configures the Continuous ....... 25 A Earth-Fault EL731 to respond to the 20 to 3,000 Hz frequency range. Current 1 second ......400 A Earth-Fault Current 4.2.4 CT2 190 Hz H... -
Page 21: Emc Tests
Page 17 EL731 AC/DC Sensitive Earth-Leakage Relay Rev. 6-F-032816 Break: Shipping Weight ....... 0.45 kg (1 lb) dc ......... 50 W Resistive, 150 Vdc ac ......... 2,500 VA (PF=1.0) PTC-Thermistor Input: Cold Resistance ....1,500 maximum at 360 VA (PF=0.4) Subject to maximums of 8 A and 250 V 20C (68°F) -
Page 22: Certification
Page 18 EL731 AC/DC Sensitive Earth-Leakage Relay Rev. 6-F-032816 Electrostatic Discharge ..IEC 61000-4-2 6.3 C ERTIFICATION ± 6 kV contact discharge Certification .........CSA, Canada and USA (direct and indirect) LR 53428 ± 8 kV air discharge UL Listed Radiated RF Immunity ..IEC 61000-4-3... -
Page 23: Ordering Information
0 No 1 Yes 8. W ARRANTY Communications: The EL731 Earth-Leakage Relay is warranted to be free 0 None from defects in material and workmanship for a period of 1 DeviceNet™ 5 years from the date of purchase. 2 Profibus ®... -
Page 24: Performance Test
To clean the EL731, use a micro-fiber cloth to gently remove dust from the surface. If necessary, spray warm b) Verify proper location of the EFCT current sensors. water on the cloth (avoid excessive moisture). Do not Ensure the cables pass through the current-sensor spray liquids directly on the EL731. -
Page 25: Earth-Fault-Test Circuit
Page 21 EL731 AC/DC Sensitive Earth-Leakage Relay Rev. 6-F-032816 TABLE 4. E ARTH- AULT- ECORD a) FOR 6 - 100 mA TRIP LEVEL ESULTS EFCT-X EFCT-X FROM POWER LOAD SOURCE R1 L EL731 L2/N SE-400 NOTE: 1. R1 MUST BE ≥ 10 OHMS... -
Page 26: Appendix Ael731 Menu Map
{CT1 Current in Milliamperes} CT2 Current {CT2 Current in Milliamperes} Full Current {CT1+CT2 Current in Milliamperes} Internal Temp {EL731 Temperature Measurement in Celsius & Fahrenheit } PTC Status {PTC state} RTD Temperature {RTD Temperature in Celsius & Fahrenheit} Exit {Return to Previous Menu} Messages... - Page 27 Page 23 EL731 AC/DC Sensitive Earth-Leakage Relay Rev. 6-F-032816 Relay Outputs Relay 1 Function Fail-safe Mode [E/D] Test Exit {Return to Previous Menu} Relay 2 Function Fail-safe Mode [E/D] Test Exit {Return to Previous Menu} Relay 3 Function Fail-safe Mode...
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Page 28: Appendix B System Parameters & Setup Record
Page 24 EL731 AC/DC Sensitive Earth-Leakage Relay Rev. 6-F-032816 PPENDIX YSTEM ARAMETERS & ETUP ECORD PARAMETER AND DEFAULT UNIT PROGRAM SELECTION SETTINGS CT1 Earth Fault Enable/Disable Enable Enable Disable Primary Turns Trip Time 2,000 (AS/NZS 2081 Option) (30) (500) -
Page 29: Appendix Cel731 Revision History
Page 25 EL731 AC/DC Sensitive Earth-Leakage Relay Rev. 6-F-032816 APPENDIX C EL731 REVISION HISTORY HARDWARE REVISION MANUAL MANUAL (REVISION NUMBER FIRMWARE REVISION RELEASE DATE REVISION ON PRODUCT LABEL) March 28, 2016 6-F-032816 1.60 September 10, 2015 6-E-091015 1.59 January 19, 2015... - Page 30 Page 26 EL731 AC/DC Sensitive Earth-Leakage Relay Rev. 6-F-032816 6-C-120814 EVISION ECTION Table 3 and Section 3.2.3.3 updated. Reset password added (Section 3.2.3.5.2). Figs. 7 and 8 updated. ECTION UR Recognized certification added to Current Sensors (Section 6.2). PPENDIX EL731 menu map updated.
- Page 31 EL731 AC/DC Sensitive Earth-Leakage Relay Rev. 6-F-032816 ARDWARE EVISION ISTORY ARDWARE EVISION CE-compliant hardware. EL731 now shipped with different connector configuration (see Fig. 1). 01C/02C ARDWARE EVISION Remote reset connectivity improved. Communication cover screws changed to Phillips for improved user access. 01B/02B ARDWARE EVISION Design updated to incorporate manufacturing process improvements.
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