Schneider Electric and 6.0A, 3.0A Display, Ammeter Measurements, Accessing Information, 16-EN

Page 18

Micrologic™ 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units

48049-136-05

Section 2—Ammeter

Rev. 01, 07/2012

 

 

Section 2—Ammeter

ENGLISH

Display

A.Alphanumeric screen: Displays ammeter information

B.Bar graph: Displays currents using an LED bar graph

C.Menu button: Used to navigate between the various menus

D.Scroll button: Used to scroll to the next screen in the menus

The default display is the current value of the phase at the highest load.

If no information is displayed, contact the local field office.

NOTE: The ammeter display will function only if the trip unit is powered. The trip unit is powered by the circuit breaker carrying more than 0.20 x In of load current, by being connected to a 24 Vdc external power supply, or by having the Full-Function Test Kit or Hand-Held Test Kit connected and on. Even with external power supplied, current through the circuit breaker must exceed 0.20 x In for the ammeter reading to be accurate to within 1.5%.

Figure 14:

Ammeter

06133245

A

 

100 %

B

 

40 %

 

 

C

menu

D

 

Ammeter Measurements

Micrologic A trip units measure the true RMS value of currents. They provide continuous current measurement from 0.2 to 20 x In with an accuracy of 1.5% (including sensors). No auxiliary source is needed where I > 0.2 x In. The optional external power supply (24 Vdc) makes it possible to display currents where

I < 0.2 x In and to store values of the interrupted current.

A digital LCD screen continuously displays the most heavily loaded phases (Imax) or displays the Ia, Ib, Ic, Ig, and (on 4-pole circuit breakers only) In stored current and setting values by successively pressing the navigation button.

Accessing Information

Three different menus can be accessed:

A.Current measurements

B.Stored peak current measurements

C.Switch settings

In addition, the ammeter can be used to address the circuit breaker communication module (BCM) in circuit breakers which have the optional circuit breaker communication module installed.

Figure 15: Menus

 

A–Currents

 

 

 

 

 

 

B–Peak Currents

06133354

 

 

 

 

 

 

 

 

 

 

 

06133355

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Max

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A

 

 

 

 

 

 

 

 

 

 

 

A

 

 

 

 

 

 

 

 

 

 

 

 

 

1.125 x Ir

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100 %

 

 

 

 

 

 

 

 

1 x Ir

 

100 %

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.8 x Ir

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.6 x Ir

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

40 %

 

 

 

 

 

 

 

 

0.4 x Ir

 

40 %

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C–Switch Settings

06133353

 

Ir=

A

 

100 %

40 %

16-EN

© 1999–2012 Schneider Electric All Rights Reserved

Image 18
Contents Conserver pour usage ultérieur Page Micrologic 2.0A, 3.0A, 5.0A, and 6.0A Electronic Trip Units Retain for future useFCC Notice Hazard Categories and Special SymbolsPlease Note Death or serious injuryTable of Contents Rating Plug Removal New Rating Plug Installation List of RegistersIntroduction Trip Unit SettingsGeneral Information CommunicationsMicrologic 2.0A Trip Unit Micrologic 3.0A Trip Unit0A Trip Unit Micrologic 5.0A Trip Unit Micrologic 6.0A Trip Unit Trips and clears the fault. Circuit breaker 2 does not trip Zone-Selective InterlockingTrip Unit Switches Micrologic Trip Unit Long-Time Delay ValuesLong-Time Protection Micrologic Trip Unit Short-Time Delay Values Short-Time ProtectionInstantaneous Protection Overload Indicator Light Indicator LightsGround-Fault Protection Micrologic Trip Unit Ground-Fault Pickup ValuesTrip Indicator Lights Trip Unit TestingMicrologic Trip Unit Configuration Control PowerExternal Power Supply Function Specification15-EN Display Accessing InformationAmmeter Ammeter MeasurementsRev , 07/2012 Ammeter Current MenuCurrent Menus 17-ENPeak Menu 18-ENSwitch Settings Menu Switch settings menu displays19-EN Examples Switch Setting AdjustmentOperation Set pickup levelsRev , 07/2012 Operation Set time delaySet Time Delay 21-ENSet Time Delays Set time delays22-EN Units Zone-Selective Interlocking ZSIZSI Combinations 23-ENInterlocking Wire circuit breakers for zone-selectiveCommunication Module values 24-ENSet communication module values 25-ENTrip Unit Operation Verification Trip Unit Settings CheckTrip Unit Settings ScreenTrip Unit Status Check Equipment Ground-Fault Trip Functions TestingTrip Unit Resetting 27-ENTrip Unit Replacement Required ToolsPreparation Rating Plug Removal Trip Unit ReplacementBattery Installation Trip Unit RemovalTrip Unit Installation 30-ENClose switch cover a Circuit Breaker Accessory CoverReplacement 31-ENTrip Unit Installation Check Trip Unit Setup Circuit Breaker Reconnection32-EN Adjustable Rating Plug Replacement New Rating Plug InstallationRating Plug Removal Battery Replacement Battery ReplacementCircuit Breaker Accessory Cover Removal Circuit Breaker DisconnectionWithstand Module Replacement Rev , 07/2012 Battery Replacement35-EN Register List Appendix A-Register ListList of Registers Module Module Name Equation Address RangeRev , 07/2012 Appendix A-Register List 37-ENSchneider Electric