Page 3 - Instruction Bulletin; Retain for future use.; ISH
Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units Instruction Bulletin 48049-136-05 Rev. 01, 07/2012 Retain for future use. EN G L ISH
Page 4 - ENGLISH; Please Note; DA N G E R; N OT I C E; NOTICE
Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units 48049-136-05 Rev. 01, 07/2012 © 1999–2012 Schneider Electric All Rights Reserved 2-EN ENGLISH Hazard Categories and Special Symbols Read these instructions carefully and look at the equipment to become familiar with the device before tryin...
Page 5 - Table of Contents; GENERAL INFORMATION
© 1999–2012 Schneider Electric All Rights Reserved 3-EN 48049-136-05 Micrologic ® 2.0A, 3.0A, 5.0A and 6.0A Electronic Trip Units Rev. 01, 07/2012 Table of Contents EN G L ISH Table of Contents SECTION 1: GENERAL INFORMATION ..............................................................................
Page 6 - ADJUSTABLE RATING PLUG REPLACEMENT
Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units 48049-136-05 Table of Contents Rev. 01, 07/2012 © 1999–2012 Schneider Electric All Rights Reserved 4-EN ENGLISH Trip Unit Replacement .............................................................................. 29 Battery Installation .....
Page 7 - Section 1—General Information; Communications; Micrologic Trip Unit
48049-136-05 Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units Rev. 01, 07/2012 Section 1—General Information © 1999–2012 Schneider Electric All Rights Reserved 5-EN EN G L ISH Section 1—General Information Communications Micrologic trip units can communicate with other devices if the opt...
Page 8 - N M
Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units 48049-136-05 Section 1—General Information Rev. 01, 07/2012 © 1999–2012 Schneider Electric All Rights Reserved 6-EN ENGLISH Micrologic 2.0A Trip Unit The Micrologic 2.0A trip unit provides basic IEC (LS0) protection and a built-in ammeter....
Page 9 - P O
48049-136-05 Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units Rev. 01, 07/2012 Section 1—General Information © 1999–2012 Schneider Electric All Rights Reserved 7-EN EN G L ISH Micrologic 5.0A Trip Unit The Micrologic 5.0A trip unit provides selective (LSI) protection and a built-in ammet...
Page 10 - T S
Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units 48049-136-05 Section 1—General Information Rev. 01, 07/2012 © 1999–2012 Schneider Electric All Rights Reserved 8-EN ENGLISH Micrologic 6.0A Trip Unit The Micrologic 6.0A trip unit provides selective and ground-fault protection for equipmen...
Page 11 - t) in the network are; Zone-Selective Interlocking
48049-136-05 Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units Rev. 01, 07/2012 Section 1—General Information © 1999–2012 Schneider Electric All Rights Reserved 9-EN EN G L ISH Zone-Selective Interlocking Short-time and ground-fault protection can be interlocked to provide zone-selective ...
Page 12 - Trip Unit Switches; Long-Time Protection Switches; Setting; If checking trip times, wait a minimum of 15 minutes after circuit
Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units 48049-136-05 Section 1—General Information Rev. 01, 07/2012 © 1999–2012 Schneider Electric All Rights Reserved 10-EN ENGLISH Trip Unit Switches Long-Time Protection Long-time protection protects equipment against overloads. • Long-time pro...
Page 13 - Short-Time Protection Switches
48049-136-05 Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units Rev. 01, 07/2012 Section 1—General Information © 1999–2012 Schneider Electric All Rights Reserved 11-EN EN G L ISH Short-Time Protection Short-time protection protects equipment against short circuits. • Short-time protection ...
Page 14 - Instantaneous Protection Switches
Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units 48049-136-05 Section 1—General Information Rev. 01, 07/2012 © 1999–2012 Schneider Electric All Rights Reserved 12-EN ENGLISH Instantaneous Protection Instantaneous protection protects equipment against short circuits with no intentional ti...
Page 15 - Indicator Lights; Ground-Fault Protection; Ground-Fault Protection Switches; Micrologic Trip Unit Ground-Fault Delay Values; Use I; Overload Indicator Light
48049-136-05 Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units Rev. 01, 07/2012 Section 1—General Information © 1999–2012 Schneider Electric All Rights Reserved 13-EN EN G L ISH Indicator Lights Ground-Fault Protection Equipment ground-fault protection protects conductors against overheat...
Page 16 - Trip Unit Testing; Control Power; Trip Indicator Lights; Ammeter; Pickup Values
Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units 48049-136-05 Section 1—General Information Rev. 01, 07/2012 © 1999–2012 Schneider Electric All Rights Reserved 14-EN ENGLISH Trip Unit Testing Trip unit functions can be tested using primary injection testing or secondary injection testing...
Page 17 - The following will be powered and functional with external power:; External Power Supply; C AU T I O N; Power Supply Specifications; Function
48049-136-05 Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units Rev. 01, 07/2012 Section 1—General Information © 1999–2012 Schneider Electric All Rights Reserved 15-EN EN G L ISH The following will be powered and functional with external power: • All of the above functions which are functi...
Page 18 - Section 2—Ammeter; Display; Accessing Information; Menus
Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units 48049-136-05 Section 2—Ammeter Rev. 01, 07/2012 © 1999–2012 Schneider Electric All Rights Reserved 16-EN ENGLISH Section 2—Ammeter Display NOTE: The ammeter display will function only if the trip unit is powered. The trip unit is powered b...
Page 19 - Navigation Buttons; Current Menu; To display next current, press scroll button.; Current Menus
48049-136-05 Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units Rev. 01, 07/2012 Section 2—Ammeter © 1999–2012 Schneider Electric All Rights Reserved 17-EN EN G L ISH To access the next menu, press the menu button (A). To access the next screen in a menu, press the scroll button (B). Figur...
Page 20 - To access the peak menu:; Access the Peak Menu; The peak menu displays:; Peak Menus
Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units 48049-136-05 Section 2—Ammeter Rev. 01, 07/2012 © 1999–2012 Schneider Electric All Rights Reserved 18-EN ENGLISH Peak Menu To access the peak menu: 1. Current menu is displayed. 2. Press menu button. 3. Peak menu appears. To access menu sc...
Page 21 - To access the switch settings menu:; Access the Switch Settings Menu; The switch settings menu displays:; Trip Unit Switch Settings; To return to the current menu:; Return to Current Menu
48049-136-05 Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units Rev. 01, 07/2012 Section 2—Ammeter © 1999–2012 Schneider Electric All Rights Reserved 19-EN EN G L ISH Switch Settings Menu The switch settings menu displays the values at which the switches are set. To access the switch setti...
Page 22 - Section 3—Operation; Switch Setting Adjustment; Adjust Switch Settings; Examples; Circuit breaker is rated 2000 A.; Circuit Breaker Rating; Set Pickup Levels
Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units 48049-136-05 Section 3—Operation Rev. 01, 07/2012 © 1999–2012 Schneider Electric All Rights Reserved 20-EN ENGLISH Section 3—Operation Switch Setting Adjustment 1. Open switch cover (A). 2. Adjust the appropriate switches (B) to desired va...
Page 23 - Set Time Delay; Micrologic 3.0A Trip Unit; Micrologic 5.0A Trip Unit
48049-136-05 Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units Rev. 01, 07/2012 Section 3—Operation © 1999–2012 Schneider Electric All Rights Reserved 21-EN EN G L ISH 2. Set time delay. Figure 26: Set Time Delay Micrologic 3.0A Trip Unit 1. Set pickup levels. Figure 27: Set Pickup Levels...
Page 24 - Set Time Delays
Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units 48049-136-05 Section 3—Operation Rev. 01, 07/2012 © 1999–2012 Schneider Electric All Rights Reserved 22-EN ENGLISH 2. Set time delay. Figure 30: Set Time Delays Micrologic 6.0A Trip Unit 1. Set pickup levels. Figure 31: Set Pickup Levels 2...
Page 25 - ZSI Combinations; Square D Micrologic Series B Trip Units; Jumpered Terminals; Upstream Device
48049-136-05 Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units Rev. 01, 07/2012 Section 3—Operation © 1999–2012 Schneider Electric All Rights Reserved 23-EN EN G L ISH Zone-Selective Interlocking (ZSI) The number of devices which can be interlocked are shown in Table 8. Table 8: ZSI Combi...
Page 26 - ZSI Wiring Example; Communication Module values; To access the communication module menu:; Access Communication Module Menu
Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units 48049-136-05 Section 3—Operation Rev. 01, 07/2012 © 1999–2012 Schneider Electric All Rights Reserved 24-EN ENGLISH Wire circuit breakers for zone-selective interlocking. Figure 34: ZSI Wiring Example Communication Module values If the opti...
Page 27 - Set communication module values:; Set Communication Module Values; Press and release scroll button to sequence
48049-136-05 Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units Rev. 01, 07/2012 Section 3—Operation © 1999–2012 Schneider Electric All Rights Reserved 25-EN EN G L ISH Set communication module values: 1. Press and release scroll button to sequence addresses (1 through 47). When the correc...
Page 28 - Trip Unit Settings Check; Press scroll button to advance to next; Trip Unit Settings; Trip Unit Operation Verification; Verify Trip Unit Operation
Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units 48049-136-05 Section 3—Operation Rev. 01, 07/2012 © 1999–2012 Schneider Electric All Rights Reserved 26-EN ENGLISH Trip Unit Settings Check Use the ammeter switch setting menu to check the trip unit settings. 1. Press menu button twice. 2....
Page 29 - If circuit breaker does not trip, contact the; Test Equipment Ground-Fault Trip Function; Trip Unit Resetting; Reset Trip Unit; Trip Unit Status Check; Battery status will be displayed; Check Trip Unit Status
48049-136-05 Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units Rev. 01, 07/2012 Section 3—Operation © 1999–2012 Schneider Electric All Rights Reserved 27-EN EN G L ISH Equipment Ground-Fault Trip Functions Testing Paragraph 230-95 (c) of the National Electrical Code requires that all equi...
Page 30 - Section 4—Trip Unit Replacement; Required Tools; Record Switch Settings; Record all trip unit switch settings for later use.; Circuit Breaker Disconnection; If trip unit being replaced is a Micrologic; HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH; electrical work practices. See NFPA 70E or CSA Z462.
Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units 48049-136-05 Section 4—Trip Unit Replacement Rev. 01, 07/2012 © 1999–2012 Schneider Electric All Rights Reserved 28-EN ENGLISH Section 4—Trip Unit Replacement Required Tools • Torque-controlled screwdriver, set at 7 in-lbs (0.8 N•m) ± 10% ...
Page 31 - Trip Unit Replacement; Rating Plug Removal; Unscrew adjustable rating plug mounting; Remove Adjustable Rating Plug; Trip Unit Removal; Remove Existing Trip Unit; Battery Installation; Battery holder with battery is located under the side flap in the; Install Battery
48049-136-05 Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units Rev. 01, 07/2012 Section 4—Trip Unit Replacement © 1999–2012 Schneider Electric All Rights Reserved 29-EN EN G L ISH Trip Unit Replacement Rating Plug Removal A small Phillips screwdriver is needed to remove the adjustable rat...
Page 32 - Inspect trip unit connector pins and surfaces.; Install Trip Unit; HAZARD OF EQUIPMENT DAMAGE
Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units 48049-136-05 Section 4—Trip Unit Replacement Rev. 01, 07/2012 © 1999–2012 Schneider Electric All Rights Reserved 30-EN ENGLISH Trip Unit Installation 1. Inspect trip unit connector pins and surfaces. If there is any damage, misaligned pins...
Page 34 - Trip Unit Installation Check; Secondary Injection Testing
Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units 48049-136-05 Section 4—Trip Unit Replacement Rev. 01, 07/2012 © 1999–2012 Schneider Electric All Rights Reserved 32-EN ENGLISH Trip Unit Installation Check Trip Unit Setup 1. If an auxiliary power supply is being used for the Micrologic tr...
Page 35 - Section 5—Adjustable Rating Plug Replacement; New Rating Plug Installation; Install New Adjustable Rating Plug
48049-136-05 Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units Rev. 01, 07/2012 Section 5—Adjustable Rating Plug Replacement © 1999–2012 Schneider Electric All Rights Reserved 33-EN EN G L ISH Section 5—Adjustable Rating Plug Replacement NOTE: To select correct replacement rating plug, se...
Page 36 - Section 6—Battery Replacement; Withstand Module Shifting; Shift Withstand Module; Battery Replacement; Insert small screwdriver blade into battery; Remove Battery Cover
Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units 48049-136-05 Section 6—Battery Replacement Rev. 01, 07/2012 © 1999–2012 Schneider Electric All Rights Reserved 34-EN ENGLISH Section 6—Battery Replacement Circuit Breaker Disconnection Disconnect circuit breaker as directed in the circuit ...
Page 37 - Circuit Breaker Reconnection; Replace Withstand Module
48049-136-05 Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units Rev. 01, 07/2012 Section 6—Battery Replacement © 1999–2012 Schneider Electric All Rights Reserved 35-EN EN G L ISH Circuit Breaker Accessory Cover Replacement Replace circuit breaker accessory cover as directed in the Install ...
Page 38 - Appendix A—Register List; List of Registers; A system scan rate of 500 ms or greater; Register List
Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units 48049-136-05 Appendix A—Register List Rev. 01, 07/2012 © 1999–2012 Schneider Electric All Rights Reserved 36-EN ENGLISH Appendix A—Register List List of Registers The quantities are listed in alphabetical order according to the SMS topic n...
Page 39 - SMS Topic Name User Description
48049-136-05 Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units Rev. 01, 07/2012 Appendix A—Register List © 1999–2012 Schneider Electric All Rights Reserved 37-EN EN G L ISH TU_BATT_PCT Trip Unit % Battery 1 8843 PM % Unity TU_SN Trip Unit Serial Number 4 8700 PM ASCII text TUCommStatus Tr...
