Micrologic control units 2.0 A, 5.0 A, 6.0 A and 7.0 A
Contents
1. current setting Ir Inx 04 0 5 06 07 08 09 0 95 0 98 1 tripping between other ranges or disable by changing rating plug 1 05 and 1 20 x Ir time delay s trat1 5xIr 12 5 25 50 100 200 300 400 500 600 accuracy tr at 6 x Ir 0 5 1 2 4 8 12 16 20 24 0 to 20 tr at 7 2 x Ir 0 34 069 1 38 27 55 83 11 13 8 16 6 In circuit breaker rating Setting accuracy of the Ir setting may be enhanced by using a different long time rating plug See the technical appendix Changing the long time rating plug En Micrologic A Schneider Electric For the characteristics and external wiring Short time protection of the zone selective interlocking function c the short time protection function protects the distribution system against impedant short circuits see the technical appendix on c the short time tripping delay can be used to ensure discrimination with a Zone selective interlocking downstream circuit breaker c this function carries out true rms measurements The portable test kit can be used to test iaia i CR woe x c e an options ennance discrimination wi ownstream the wiring between circuit breakers protection devices for the zone selective interlocking function use of I2t curves with short time protection v Zt OFF selected the protection function implements a constant time curve v It ON selected the protection function implements an I t inverse time curve up to 10 Ir Above 10 Ir the time curve is constant2. capacity of connectors 0 4 to 2 5 mm maximum cross sectional area of wires including insulation 3 5 mm wires single or multicore maximum length 3000 metres limits to device interconnection the common ZSI OUT SOURCE Z1 and the output ZSI OUT Z2 can be connected to a maximum of 10 inputs v a maximum of 100 devices may be connected to an input ZSI IN CR Z4 or GF Z5 c connections are made from the output ZSI OUT Z2 on the downstream device to the input s ZSI IN ST Z4 and or GF Z5 on the upstream device ARN DAA and or Zi Z2 Z3 Z4 Z5 Terminal block 77d for external connections Upstream circuit breaker and or Zi 22232425 Terminal block fs for external connections Z1 Z2 Z3 Z4 Z5 Terminal block C j for external connections Downstream circuit breaker Micrologic A Schneider Electric Technical appendix Digital display For information on connecting an external c display of measurements operates without an external power supply power supply see the electrical diagrams The digital display goes off if the current drops below 0 2 x In In rated current De c display back lighting is disabled in the following situations in the circuit breaker user manual current less than 1 x In on one phase V v current less than 0 4 x In on two phases v current less than 0 2 x In on three phases c the maximeter does not oper
3. c zone selective interlocking ZSI The short time and earth fault protection functions enable time discrimination by delaying the upstream devices to provide the downstream devices the time required to clear the fault Zone selective interlocking can be used to obtain total discrimination between circuit breakers using external wiring Short time pick up Isd and tripping delay tsd pick up Isd Irx 15 2 25 3 4 5 6 8 10 accuracy 10 time delay settings I t OFF 0 0 1 0 2 03 04 ms at 10 Ir 12t ON 01 02 03 04 It ON or tsd max resettable time 20 80 140 230 350 It OFF tsd max break time 80 140 200 320 500 Instantaneous protection c the instantaneous protection function protects the distribution system against solid short circuits Contrary to the short time protection function the tripping delay for instantaneous protection is not adjustable The tripping order is sent to the circuit breaker as soon as current exceeds the set value with a fixed time delay of 20 milliseconds c this function carries out true rms measurements Instantaneous pick up Isd pick up Isd Irx 15 2 25 3 4 5 6 8 10 accuracy 10 pick up li Inx 2 3 4 6 8 10 12 15 OFF accuracy 10 In circuit breaker rating Gi Micrologic A Schneider Electric Discovering your control unit Overview of functions Current protection Protection of the fourth pole on four pole circuit breakers Protection of the neutral conductor de
4. for battery 12 digital display 13 three phase bargraph and ammeter 0ONDUIS WINE Adjustment dials 14 long time current setting Ir 15 long time tripping delay tr 16 short time pickup Isd 17 short time tripping delay tsd 18 instantaneous pick up Isd 19 instantaneous pick up li 20 earth fault pick up lg 21 earth fault tripping delay tg 22 earth leakage pick up lAn 23 earth leakage tripping delay At Indications 24 LED indicating long time tripping 25 LED indicating short time tripping 26 LED indicating earth fault or earth leakage tripping 27 LED indicating auto protection tripping 28 LED indicating an overload Navigation 29 navigation button to change menus 30 navigation button to view menu contents 31 button for fault trip reset and battery test Test 32 test button for earth fault and earth leakage protection 33 test connector E51389A E51391A Presentation AN menu ton time ir tr alar zas Wa b iz 95 2 16 xin Saer o ort ime I ins n i ES 2 Eu Micrologic A E51390A E51394A se Micrologic 5 0 A E51393A E51392A Schneider Electric Overview of functions Current protection Discovering your control unit Protection settings Depending on the type of inst
5. for selective earth leakage protection Y version number identification of the control unit generation 0 signifies the first generation Z type of measurement c A for ammeter c P for power meter c H for harmonic meter c no indication no measurements E51384A E51385A E51387A Identifying your control unit Designations Micrologic 2 0 A basic protection and ammeter th E51352A gt O Ir Isd Long time Instantaneous E51354A gt I Oo Ir Isd li Long time Short time Instantaneous Micrologic 6 0 A selective earth fault protection and ammeter th E51354A gt O Ir lsd li I Long time Short time Instantaneous E51395A Le on L I t off 0 Ig I Earth fault protection Micrologic 7 0 A selective earth leakage protection and ammeter E51354A gt 0O Ir lsd li I Long time Short time Instantaneous Di Micrologic A E51452A gt gt 0 lAn Earth leakage protection Schneider Electric top fastener bottom fastener protective cover cover opening point lead seal fixture for protective cover long time rating plug screw for long time rating plug connection with circuit breaker infrared link with communications interfaces 10 terminal block for external connections 11 housing
6. A Press the arrow button Press the arrow button to go on to current IN if to go on to the earth fault the circuit breaker is current Ig or the earth connected to the neutral leakage current lAn Display of current Ig The system returns to Micrologic 6 0 A or the display of current 11 current lAn Micrologic 7 0 A E51428A E51409A Press the arrow button to return to current 11 19 Micrologic A Schneider Electric E51407A Menus Displaying the maximum current values Maximum current values may be read in Display of the Display of the the Maximeter menu maximum l1 current maximum 12 current E51430A E51431A If no particular action is taken the system returns to the main menu Maximeter menu Press the arrow button Press the arrow button to go on to the maximum to go on to the maximum 12 current 13 current Display of the Display of the maximum I3 current maximum IN current E51432A E51434A Press the arrow button Press the arrow button to go on to the maximum to go on to the maximum IN current if the circuit earth fault current Ig breaker is connected to Micrologic 6 0 A or the the neutral maximum earth leakage current An Micrologic 7 0 A Display of the maximum The system returns to Ig current or the the display of the maximum lAn current maximum l1 current E51433A E51435A Press the arrow button to return t
7. F curve ta Ir th Ir Isd Isd li li 0 io i su lAn SS 0 Tripping delays It ON curve It OFF curve gu ta tr tr tsd tsd 0 io i Sth At 0 I Set the tripping delay 3 long time T SA 4 8 42 p 2 16 1 20 S 5 at6lr di I 140 ground fault 15 Micrologic A tr 1 second tsd 0 2 seconds Pton E Pt off At 140 milliseconds Schneider Electric Fault and status indications The procedure for closing the circuit breaker following a fault trip is presented in the circuit breaker user manual Resetting the fault indications and checking battery status Resetting the fault indications determine why the circuit breaker tripped The fault indication is maintained until it is reset on the control unit v press the fault trip reset button Micrologic 7 0 A JAWAMI q E51439A v check the parameter settings of the control unit If the battery needs to be changed please use the one with Schneider catalogue number 33593 characteristics given on the battery compartment cover Checking the battery Micrologic 7 0 A E51440A Press the battery test button same as the fault trip reset button to display the battery status MA Battery fully charged _ Battery half charged Change the battery E51441A If
8. I protection a jumper must be installed to short terminals Z3 Z4 and Z5 If the jumper is not installed the short time and earth fault tripping delays are set to zero whatever the position of the adjustment dial Terminals Z1 to Z5 correspond to the identical indications on the circuit breaker terminal blocks E60375A Zone selective interlocking ZSI Operating principle c A fault occurs at point A Downstream device no 2 clears the fault and sends a signal to upstream device no 1 which maintains the short time tripping delay tsd or the earth fault tripping delay tg to which it is set c A fault occurs at point B Upstream device no 1 detects the fault In the absence of a signal from a downstream device the upstream device immediately trips without taking into account its tripping delay settings If it is connected to a device even further upstream it sends a signal to that device which delays tripping according to its tsd or tg setting Note On a circuit breaker likely to receive a ZSI signal the tsd and tg tripping delays must not be set to zero as this would make discrimination impossible Connections between control units A logic signal 0 or 5 volts can be used for zone selective interlocking between the upstream and downstream circuit breakers c Micrologic 5 0 A 6 0 A 7 0 A c Micrologic 5 0 P 6 0 P 7 0 P c Micrologic 5 0 H 6 0 H 7 0 H Wiring maximum impedance 2 7 Q 300 metres
9. Micrologic control units 2 0 A 5 0 A 6 0 A and 7 0 A Low Voltage Products User manual Schneider Electric We do more with dectricity Micrologic control units 2 0 A 5 0 A 6 0 A and 7 0 A Discovering your control unit Identifying your control unit Overview of functions Setting your control unit Selecting the type of neutral protection Setting procedure Setting the Micrologic 2 0 A control unit Setting the Micrologic 5 0 A control unit Setting the Micrologic 6 0 A control unit Setting the Micrologic 7 0 A control unit Fault and status indications Resetting the fault indications and checking battery status Testing the earth fault and earth leakage functions Menus Accessing the menus Measuring phase currents Displaying the maximum current values Resetting the maximum current values Viewing the settings Technical appendix Tripping curves Changing the long time rating plug Zone selective interlocking ZSI Digital display Thermal memory fa Micrologic A Schneider Electric E51450A Discovering your control unit All Compact NS800 3200 and Masterpact NT and NW circuit breakers are equipped with a Micrologic control unit that can be changed on site Control units are designed to protect power circuits and connected loads Micrologic 2 0 A u X Y Z X type of protection c 2 for basic protection c 5 for selective protection c 6 for selective earth fault protection c 7
10. Pye 8 S 10 xir setting t4 Ir Isd 0 i Set the tripping delay long time tr 1 second ts ent usi s 4 12 2 16 te e Stein Schneider Electric 12 Micrologic A The rating of the circuit breaker in this example is 2000 A E51366A Setting the Micrologic 5 0 A control unit Set the threshold values In 2000 A See pages 4 and 5 for information on the available settings Thresholds 12 ON curve let OFF curve th Ir th Ir Isd Isd li li 0 io Tripping delays It ON curve It OFF curve t4 th tr tr tsd tsd 0 uo pasa In 2000 A S or 8 alam Ae Ir 0 7 x In 1400 A 6 95 see a Isd 2 x Ir 2800 A xin aE li 3 x In 6000 A Isd 4 seen 6 PLS 6 10 28 6 4 12 2 8 3 15 LS 10 2 off xir x In setting Set the tripping delay long time tr 1 second short time 13 Micrologic A tsd 0 2 seconds Pt on 3 1 t off 7 Schneider Electric Setting your control unit The rating of the circuit breaker in this example is 2000 A E51366A In 2000 A See pages 4 to 6 for information on the available settings Thresholds It ON curve 2t OFF curve rr SU sir Isd Isd li li 0 0 Eu Eu U gt I 0 I 0 Tripping delays It ON c
11. allation it is possible to set the tripping curve of your control unit using the parameters presented below Micrologic 2 0 A ta 1 E51358A O Ir Isd 1 current setting Ir long time 2 tripping delay tr long time for 6 x Ir 3 pick up Isd instantaneous Micrologic 5 0 A 6 0 A Micrologic 7 0 A 7 0A Micrologic 6 0 A gt th E51359A E51386A E51396A o Ir Isd li io lg i o lan 1 current setting Ir long time 2 tripping delay tr long time for 6 x Ir 3 pick up Isd short time 4 tripping delay tsd short time 5 pick up li instantaneous 1 pick up lg earth fault 2 tripping delay tg earth fault 1 pick up lAn earth leakage 2 tripping delay At earth leakage Micrologic control unit Long time protection The long time protection function protects cables phases and neutral against overloads This function is based on true rms measurements Thermal memory The thermal memory continuously accounts for the amount of heat in the cables both before and after tripping whatever the value of the current presence of an overload or not The thermal memory optimises the long time protection function of the circuit breaker by taking into account the temperature rise in the cables The thermal memory assumes a cable cooling time of approximately 15 minutes Long time current setting Ir and standard tripping delay tr 2 0 A and 5 0 A
12. ate for currents under 0 2 x In These three functions may be maintained by adding an external power supply Even if an external power supply is installed the long time short time instantaneous and earth protection functions will not use it Ei Micrologic A Schneider Electric Thermal memory Thermal memory The thermal memory is a means to simulate temperature rise and cooling caused by changes in the flow of current in the conductors These changes may be caused by c repetitive motor starting c loads fluctuating near the protection settings c repeated circuit breaker closing on a fault Control units without a thermal memory contrary to bimetal strip thermal protection do not react to the above types of overloads because they do not last long enough to cause tripping However each overload produces a temperature rise and the cumulative effect can lead to dangerous overheating Control units with a thermal memory record the temperature rise caused by each overload Even very short overloads produce a temperature rise that is stored in the memory This information stored in the thermal memory reduces the tripping time Micrologic control units and thermal memory All Micrologic control units are equipped as standard with a thermal memory c for all protection functions prior to tripping the temperature rise and cooling time constants are equal and depend on the tripping delay in question v if the tripping delay is
13. d neutral currents c it detects faults downstream of the circuit breaker Source Ground Return c using a special external sensor this function directly measures the fault current returning to the transformer via the earth cable c it detects faults both upstream and downstream of the circuit breaker c the maximum distance between the sensor and the circuit breaker is ten metres c earth fault and neutral protection are independent and can therefore be combined Earth fault pick up Ig and tripping delay tg The pick up and tripping delay values can be set independently and are identical for both the residual and source ground return earth fault protection functions pick up Ig Inx A B C D E F G H I accuracy In lt 400 A 03 03 04 05 06 07 08 0 9 1 10 400 A lt In lt 1200 A 02 03 04 05 06 07 08 0 9 1 In gt 1200 A 500A 640A 720A 800A 880A 960A 1040 A 1120 A 1200 A time delay settings I t OFF 0 01 02 03 04 ms at 10 In It ON 01 02 03 04 It ON or tg max resettable time 20 80 140 230 350 It OFF tg max break time 80 140 200 320 500 In circuit breaker rating ES Micrologic A Schneider Electric Current protection and alarms Earth leakage protection on Micrologic 7 0 A c the earth leakage protection function primarily protects people against indirect contact because an earth leakage current can provoke an increase in the potential of the exposed conductive parts The earth leakage pick up value lAn is di
14. fault indications If there are no indications check the battery Signals tripping due to an Signals tripping due to overrun of the earth fault the auto protection pick up Ig or the earth function of the control leakage pick up IAn unit Micrologic 7 0 A 9 E51401A E51402A Micrologic A Schneider Electric Discovering your Overview of functions control unit Ammeter measurements If no information is displayed on the screen all Micrologic control units measure the true rms value of currents see the technical appendix Digital display the most heavily loaded phase is continuously displayed on the digital screen Pp g pay c using the navigation buttons it is possible to display successively the 11 12 13 neutral IN Ig IAN and stored current maximeter values c the percent load on each phase is displayed A bargraph displays the currents measured on phases 1 2 and 3 as a percentage of the long time current setting Ir E60371A 1 125 x Ir ixir 0 8 x Ir 0 6 x Ir 0 4 x Ir 8 Micrologic A Schneider Electric Gi Micrologic A Schneider Electric Setting your control unit Selecting the type of neutral protection On four pole circuit breakers it is possible to select the type of neutral protection for the fourth pole c neutral unprotected 4P 3D c neutral protection at 0 5 In 3D N 2 c neutral protection at In 4P 4D E51383A 10 Micrologic A Schne
15. he long time rating plug Select the long time rating plug A number of setting ranges for the long time current setting are available on Micrologic A control units by changing the long time rating plug The available rating plugs are listed below 0 4 to 1 x Ir 33543 low setting 0 4 to 0 8 x Ir 33544 high setting 0 8 to 1 x Ir 33545 without long time protection Caution Following any modifications to the long time rating plug all control unit protection Change the long time rating plug Proceed in the following manner parameters must be checked 1 Open the circuit breaker 2 Open the protective 3 Completely remove cover of the control unit the long time rating plug screw E51378A E51379A Caution 4 Snap out the rating 5 Clip in the new rating plug If no long time rating plug is installed the PlUG control unit continues to operate under the following downgraded conditions c the long time current setting Ir is 0 4 c the long time tripping delay tr corresponds to the value indicated by the adjustment dial c the earth leakage protection function is disabled E51380A E51381A 6 Refit the screw for the 7 Check and or modify the long time rating plug control unit settings Ei Micrologic A Schneider Electric E51397A Caution If the protection function is not used on circuit breakers equipped for ZS
16. ick up li Earth fault pick up Ig Press the arrow button to go on to the lg value Or Earth leakage pick up lAn the lAn value Earth fault tripping delay tg Press the arrow button to go on to the tg value Or Earth leakage tripping delay At the At value 22 Micrologic A Press the arrow button to return to the beginning of the menu a n n n n n n n n n Schneider Electric 23 Micrologic A Schneider Electric Technical appendix E60369A E60370A Tripping curves Long time and instantaneous protection Micrologic 2 0 A 10 000 5 000 Ir 0 4 1 x In 2 000 1 000 500 200 100 tr 0 5 24 s 50 20 1 t s Isd 1 5 10 x Ir ai oen ao 001 5 71 2 345 710 20 30 50 70100 200300 lt H I gt Long time short time and instantaneous protection Micrologic 5 0 A 6 0 A and 7 0 A 10 000 5 000 Ir 0 4 1 x In 2000 1000 500 tr 0 5 24 s 200 t s Isd 1 5 10 x Ir It OFF 02 li 2 15 x In OFF 1 001 5 7 1 2 345 7 10 20 3 5 7 10 20 30 lt xlr In Ei Micrologic A Schneider Electric E46266A Earth fault protection Micrologic 6 0 A 10 000 5 000 2 099 Ig A J x In 1 A JxIn 1 000 j 1200 A max 500 200 t s 05 07 1 2 19 4 5 20 1 2 3 5 7 10 200300 D 1 1 Ea Micrologic A Schneider Electric Technical appendix Changing t
17. ider Electric Setting procedure Setting procedure 1 Open the protective cover E51410A E51411A 2 Select the desired setting The set value is automatically displayed on the digital screen in absolute value with the relevant units c Current in amperes A and kA Tripping delays in seconds 3 If no information is displayed see the technical appendix Digital display If no further action is taken after a few seconds the display returns to the main menu for current measurements E51412A 4 Close the protective cover and if necessary install a lead seal to protect the settings See the user manual for the portable h test kit Using the portable test kit To test the control unit connect the portable test kit via the test connector E51410A E51413A Ka Micrologic A Schneider Electric E51366A Setting your control unit The rating of the circuit breaker in this example is 2000 A In 2000 A See pages 4 and 5 for information on the available settings E60365A E51368A E60366A E51370A Setting the Micrologic 2 0 A control unit Set the threshold values long time In 2000 A Ir 3 8 j alarm ree o cei Ir 0 7 x In 1400 A ZIO Isd 3x Ir 4200 A xin aa e antaneous JAG Dis 6
18. no information is displayed either c no battery is installed in the control unit or c an auxiliary power supply is required See the technical appendix Digital display Changing the control unit battery 1 Remove the battery 2 Remove the battery cover 1 DS E51442A E51443A gt u 4 3 Insert a new battery 4 Put the cover back in Check the polarity place Press the battery test button to check the new battery qt tag E51444A E51445A 16 Micrologic A Schneider Electric Testing the earth fault and earth leakage functions Charge and close the circuit breaker Using a screwdriver press the test button for earth fault and earth leakage protection The circuit breaker should open E51410A E51456A If the circuit breaker does not open contact the Schneider after sales support department Micrologic A Schneider Electric E51404A E51405A Menus Symbols used Press and hold a key It is possible at any time to stop consulting a current measurement a maximum current value recorded by the maximeter or the setting values After a few seconds the Micrologic control unit automatically returns to the main menu displaying the current value of the most heavily loaded phase The protection settings can be displayed directly on the digital display Accessing the menus Three menus may be accessed on Micrologic c
19. o the maximum l1 current 20 Micrologic A Schneider Electric E51407A Maximum current values can be reset using the Maximeter menu If no particular action is taken the system returns to the main menu Maximeter menu Resetting the maximum current values Select the maximum Reset Select another value current value to be to reset or return to reset e g 12 max the main menu E51436A E51437A E51438A Press the arrow button Press and hold the Press the arrow button as many times as arrow button down for as many times as required to select 12 max three to four seconds required to select another The current value flashes maximum value to reset during the reset then or return to the main changes to the present menu value the new maximum 21 Micrologic A Schneider Electric Menus Viewing the settings Micrologic control unit 20A 50A 60A 70A E60374A Long time current setting Ir Select the Settings menu The Ir value is the first displayed Long time tripping delay tr Press the arrow button to go on to the tr value Short time pick up Isd Press the arrow button to go on to the short time Isd value Short time tripping delay tsd Press the arrow button to go on to the tsd value Instantaneous pick up Isd Press the arrow button to go on to the instantaneous Isd value Or Instantaneous p
20. ontrol units providing the following information c phase current measurements l1 12 13 neutral IN earth fault current Ig on the Micrologic 6 0 A control unit and earth leakage current lAn on the Micrologic 7 0 A control unit c maximeter current values for phases 11 12 13 neutral IN the maximum earth fault current Ig on the Micrologic 6 0 A control unit and the maximum earth leakage current lAn on the Micrologic 7 0 A control unit c protection settings and tripping delays 1 Measurements 2 Maximeter 3 Settings E51406A E51407A E51408A Press the menu button Press the menu button Press the menu button to access the maximum to access the protection to return to the current current values measured settings and tripping measurements by the maximeter delays 4 The system returns to the main Measurements menu E51409A 18 Micrologic A Schneider Electric E51409A Measuring phase currents Current values may be read in the Display of current I1 Display of current 12 Measurements menu which is also the main menu E51425A E51426A If no particular action is taken the system displays the current value of the most heavily loaded phase Measurements menu Phase 1 is the most heavily loaded Press the arrow button Press the arrow button to go on to current 12 to go on to current 13 Display of current 13 Display of current IN E51427A E51429
21. pends on the distribution system There are three possibilities Neutral unprotected The distribution system does not require protection of the neutral conductor Neutral protection The cross sectional area of the neutral conductor at 0 5 In is half that of the phase conductors c the long time current setting Ir for the neutral is equal to half the setting value c the short time pick up Isd for the neutral is equal to half the setting value c the instantaneous pick up Isd Micrologic 2 0 A for the neutral is equal to half the setting value c the instantaneous pick up li Micrologic 5 0 A 6 0 A 7 0 A for the neutral is equal to the setting value Neutral protection The cross sectional area of the neutral conductor is equal at In to that of the phase conductors c the long time current setting Ir for the neutral is equal to the setting value c the short time pick up Isd for the neutral is equal to the setting value c the instantaneous pick ups Isd and li for the neutral are equal to the setting value Earth fault protection on Micrologic 6 0 A c an earth fault in the protection conductors can provoke local temperature rise at the site of the fault or in the conductors The purpose of the earth fault protection function is to eliminate this type of fault c there are two types of earth fault protection Residual c the function determines the zero phase sequence current i e the vectorial sum of the phase an
22. short the time constant is low v if the tripping delay is long the time constant is high c for long time protection following tripping the cooling curve is simulated by the control unit Closing of the circuit breaker prior to the end of the time constant approximately 15 minutes reduces the tripping time indicated in the tripping curves EJ Micrologic A Schneider Electric Schneider Electric Industries SA 5 rue Nadar 92506 Rueil Malmaison Cedex France Tel 33 0 1 41 29 82 00 Fax 33 0 1 47 51 80 20 http www schneiderelectric com 04443724AA A As standards specifications and designs develop from time always ask for confirmation of the information given in this publication C This document has been printed on ecological paper Designed by HeadLines Printed by 11 99
23. splayed directly in amperes and the tripping delay follows a constant time curve c an external rectangular sensor is required for this function c this function is inoperative if the long time rating plug is not installed cd protected against nuisance tripping c k DC component withstand class A up to 10 A Pick up value IAn and tripping delay At pick up lAn 05 1 2 3 5 7 10 20 30 accuracy 0t0 20 time delay settings ms At max resettable time 60 140 230 350 800 At max break time 140 200 320 500 1000 Overload LED er Marg E51398A Fi E setting delay lan At 3 5 7 ms 230 350 2 10 ji 20 140 150090 Gane L earth leakage This LED signals that the long time current setting Ir has been overrun The auto protection function excessive Fault indications temperature or short circuit higher than a n circuit breaker capacity opens the circuit Signals tripping due to an Signals tripping due overrun of the long time to an overrun of the breaker and turns on the Ap LED current setting Ir short time pick up Isd or the instantaneous Caution pick up Isd li If the circuit breaker remains closed and the Ap LED remains on contact the SY UR SN els Schneider after sales support department x fr Ul fda ll 9 ne Hall 9 Micrologic 7 0 A E51399A E51400A Micrologic 7 0 A Caution The battery maintains the
24. urve 12t OFF curve ta gu tr tr tsd tsd 0 i o st su tg E L H I 0 I 0 Setting the Micrologic 6 0 A control unit Set the threshold values long time Ir ae 6 s 95 E51414A xin 7 4 short time Isd 3 45 25 ede 6 2 8 TS xir setting O Ig B A ground fault NES gt sika rn alarm In 2000 A Ir 0 7 x In 1400 A Isd 2 x Ir 2800 A li 3 x In 6000 A B gt lg 640 A Set the tripping delay long time E60372A 14 Micrologic A tr 1 second tsd 0 2 seconds ton lt off d tg 0 2 seconds Schneider Electric The rating of the circuit breaker in this example is 2000 A E51366A In 2000 A See pages 4 to 7 for information Setting the Micrologic 7 0 A control unit Set the threshold values 5 long time ri Ir 8 alarm AS 6 195 RES Ere amp x In l PS Isd short time 1 3 Ass 6 8 10 gt 25 6 4 12 2 8 3 15 1 5 10 2 int setting O An test A 3 57 2 10 1 20 Q Q 5 30 ground fault In 2000 A Ir 0 7 x In 1400 A isd 2 x Ir 2800 A li 3 x In 6000 A IAn 1A on the available settings Thresholds 12 ON curve It OF
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