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Micrologic - Schneider Electric

1. 04443726AA 09 2009 Schneider 79 Technical appendix Thermal memory Thermal memory The thermal memory is the means to take into account temperature rise and cooling caused by changes in the flow of current in the conductors These changes may be caused by repetitive motor starting m loads fluctuating near the long time protection settings m repeated circuit breaker closing on a fault Control units with a thermal memory record the temperature rise caused by each overload even very short ones 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 m For all protection functions prior to tripping the temperature rise and cooling time constants are equal and depend depend on the tr tripping delay if the tripping delay is short the time constant is low ifthe tripping delay is long the time constant is high m 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 Short time protection and intermittent faults For the short time protection function intermittent currents that do no provoke tripping are stored in the Micrologic P memory This infor
2. m Diagram 2 Fuses Q Contactor DB120007 m Diagram 3 Contactor DB120008 m Diagram 4 DB120009 Load Other measurement and protection systems 04443726AA 09 2009 Schneider 75 E60450B Technical appendix Zone selective interlocking ZSI Operating principle m Afault 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 ground fault tripping delay tg to which it is set Caution If the protection function is not used on circuit breakers equipped for ZSI protection a jumper must be installed to short terminals Z3 Z4 and Z5 If the jumper is not installed the short time and ground fault tripping Upstream device no 1 detects the fault In the absence of a signal from a downstream device the set time delay is not taken into account and the device trips ies L m A fault occurs at point B a B according to the zero setting If it is connected to a device further upstream it sends 4 a signal to that device which delays tripping according to its tsd or tg setting Note On device no 1 the tsd and tg tripping delays must not be set to zero because this would make discrimination impossible 4 5 Connections between control units A logic signal 0 or 5 volts can be used for zone selective interlocking bet
3. Selection of the type of neutral neutral A sensor and type of neutral protection Setting of the l alarm I Alarm Setting of the current unbalance protection unbal lunba 96 Setting of the maximum current protection 11 max max Setting of the maximum current protection 12 max 2 max Setting of the maximum current protection max max Setting of the maximum current protection IN max IN max A 18 Schneider 04443726AA 09 2009 Electric E71719A E71720A E71721A 71722 Discovering Micrologic P Current protection Voltage protection Other protection Load shedding Load shedding P Current protection Voltage protection Other protection Load shedding Load shedding P Current protection Voltage protection Other protection Load shedding Load shedding Current protection Voltage protection Other protection Load shedding Load shedding P 04443726AA 09 2009 Protection Voltage protection Voltage access to the following sections protection J V Setting of the minimum voltage protection U min Umin V V Setting of the maximum voltage protection U max Umax V Setting of the voltage unbalance protection U unbal 0 Uunbal 76 Other protection Other access to the following sections
4. long time eo 98 BO L earth leakage N 2x 60238 E60240A E60236A Micrologic 6 0 P control unit long time L ground fault Schneider 5 Electric Discovering Micrologic P Dials m Dials are used to set Micrologic P protection thresholds and tripping delays for overloads short circuits ground faults and earth leakage m f the set thresholds are overrun these protection functions systematically trip the circuit breaker Buttons m Buttons on the keypad are used for fine adjustments ofthe protection thresholds and tripping delays for overloads short circuits ground faults and earth leakage The value previously set using a dial automatically becomes the maximum value for the keypad settings m They may also be used to activate other factory disabled protection functions available on Micrologic P These other protection functions are not accessible via the dials With the protective cover open make all the necessary settings for your control unit All fine adjustments are permanently stored in memory unless the setting is modified using the adjustment dial For remote settings using the communications option see the Remote settings section in the Com setup menu under History maintenance and setup Schneider DB119914
5. 2 2 mm uno Schneider Electric 35 E71748A Overview of functions COM module on chassis optional Circuit breaker COM module on circuit breaker Micrologic P control unit 36 Schneider Electric COM communications option Communication options Digipact and ModBus are the indispensable elements when integrating Micrologic P in the Digivision and SMS Powerlogic installation management systems which communicate via the BatiBus and ModBus protocols External gateways are available for communication over other networks including ProfiBus Ethernet etc The communications option makes possible the following remote functions m Device identification address O device type control unit type type of long time rating plug Settings reading of the dial settings fine adjustments within the range determined by the dial o protection and alarm settings setup of the M2C M6C contacts Operating and maintenance aids m Protection and alarm values standard set m Measurement values O currents voltages frequencies power etc m Fault values fault type interrupted current Histories and logs trip history alarm history event history m Indicators contact wear counters etc maintenance register 04443726AA 09 2009 04443726AA 09 2009 Schneider Setup Setting up the optional M2C
6. Protection N 2 Quit the setting screen Confirm Note On four pole circuit breakers setting of the neutral using the keypad is limited by the dial setting 04443726AA 09 2009 Schneider 51 Protection settings Setting the IZ unbal max U min U max U unbal rP max F min F max and phase rotation protection functions using the keypad Select the corresponding menu Current protection E71661B type of protection operating mode lt Alarm Off Alarm or Trip ickup threshold unbal 96 Ko pickup time delay 1 max A dropout threshold l2 max A dropout time delay max A Specific case for alarm A m Only the following choices are available On activation of the alarm without fault tripping by the circuit breaker IN max Off alarm disabled Voltage 2 Example Maximum voltage setting U max protection Select Alarm mode Umin V Umax V 8 Umax V Umax V Umax V Pick up Pick up Pick up Uunbal 690V 690V 690V m 5 00s 5 00s 5 00s En Drop out Drop out Drop out 690V 690V 690V rPmax W 0 505 0 505 0 505 Fmn 2 gg um Select the first setting Choose Off or Alarm Confirm Fmax Hz Phase i rotation i Umax V Pick up 690V 5 00s Drop out 690V 0 50s In trip
7. 30 Phase rotation E89258B E71687A BUD then Select View Measure the voltage unbalance U unbal U V Instant E89259B Average 3o Phase rotation then Select View Schneider 59 Electric Metering Voltage measurements Determine the phase sequence U V Instant E89260A E89261A Phase rotation Average Unbal 3 Phase rotation aD then e Select View 60 Schneider 04443726AA 09 2009 Metering Select the command P kW Instant To ensure reliable power and power factor measurements the Power sign and Sign convention parameters must be set Select the command P kW Demand 04443726AA 09 2009 Power measurements Measure an instantaneous power value E71690A 601998 aD then e Select View Measure the power factor Power factor E71691A E71692A 1 00 BD then Select View Measure a demand power value m Display the demand power E71693A aD then o Select View Schneider 61 Electric Metering Schneider Electric E71695A E71697B Power measurements m Check the demand power maximeter ag then e Select m Reset the maximeter Pmax Demand kW 0 kvar 0 kVA 0 Reset Reset the maximeter or E71696B Pmax Demand kW 2450 kvar 800 kVA 2700 Reset
8. Calculation Calculation Calculation Thermal method based in l t calculation method method method block Window type Window type Window type sliding sliding sliding Interval Interval Interval 15 min 15 min 15 min o0 e Select Adjust Confirm 04443726AA 09 2009 Schneider 43 Electric Setup Setting up the metering functions E89213C E89214C E89215C Current demand Current demand Current demand Calculation method block Calculation method block Calculation method block interval Window type sliding interval Window type sliding interval Window type sliding Interval Interval Interval 00 Select Adjust Confirm Select the command Select the calculation method for demand power Metering g g setup Power Power Power Pawa demand demand demand en Calculation Calculation Calculation The synchronisation function Synchro Com is method method method available only with the COM communication option With this function the demand power is determined on thermal the basis of a signal synchronised by the communication module Window type sliding interval Window type sliding block interval Window type sliding Thermal method based on l t calculation Interval 15 min Interval Interval Sliding window 15 min power demand is refreshed every 15 secondes 1 5 min Fixed window a a KY power demand is refreshed at
9. 5 by pressing one of the menu access buttons 5 Load P 5 Load p m This saves the new values shedding shedding On On Pick up Pick up Do you want to save new 1000kW 1000kW settings 3600s 3600s Drop out Drop out 985kW 985kW un o Set the other parameters Quit the setting screen Confim Scbneider 55 04443726AA 09 2009 P Electric Metering Current measurements Only the measurements for the phase 1 2 3 and Continuous current measurement neutral currents are displayed on the main screen The bargraph displays the value in amperes of the most heavily loaded phase The neutral current is displayed if the neutral CT is set to internal or external see Ineutral A settings in the Current protection menu E60184A E60185A E60187A The a and buttons may be used to display the currents on the three phases If the operator no longer uses the buttons for a few seconds the bargraph returns to the display of the most heavily loaded phase Select the command Measure an instantaneous current value ae m Measure the instantaneous currents WS A 3 maa 8 inst 8 Instant sae I1 12 13 IN Max o0 then o Select View m Check the instantaneous current maximeter Imax Instant 5600 A 4800 A 4700 A 800A 28A E60190A E60191A inst 11 12 13 IN Max Reset oo then Select View 56 Schneider 04443726AA 09 2009 Electric Metering Select the co
10. 500 100 A FE N 04443726AA 09 2009 Technical appendix Tripping curves Ground fault protection Micrologic 6 0 P 10 000 3 5 000 LET 1 000 500 200 t s 05 07 1 2 3 45 71 2 3 5 710 200300 In 04443726AA 09 2009 Schneider Electric 73 Technical appendix Voltage measurements Micrologic P is equipped with a three phase voltage power supply that with respect to the distribution system may be considered a delta load The three phase power supply reinjects voltage on an open phase The voltage protection functions react as indicated below Minimum voltage protection This function is based on the measurement of the phase to phase voltages In diagrams 1 3 and 4 on the next page a fuse has blown The control unit reinjects voltage on the failed phase and measures a phase to phase voltage higher than the actual voltage The phase to neutral voltage should be zero but the value measured is not zero In diagram 2 the phase to neutral voltage is effectively zero and the measurement indicates zero as well By limiting the pickup threshold of the minimum voltage protection to the 80 100 ran
11. Alarm unbal max 12 max IN max m Load shedding and reconnection O current I power P m Latching settings non latching contact the contact remains activated as long as the fault that caused the alarm has not been cleared latching contact the contact remains activated until it is reset Reset menu time delay contact the contact remains activated for the duration of an adjustable time delay or until it is reset Reset menu locked to 1 the contact is forced to 1 for an automation test locked to 0 the contact is forced to 0 for an automation test m Other protection n F min Contact operating diagram for long time protection a Ir threshold T2 1 sec H H H t Internal alarm id iNon latching contact Time delay Reset possible before contact delay 1 to 360 s end of delay iLatching Reset possible icontact Co only after 2 16 Contact operating diagram for short time instantaneous and ground fault protection 4 ilsd li or Ig pickup tsd or tg delay F gt O 1 li or lg LED Internal alarm Non latching contact iTime delay i Reset possible before contact delay 1 to 360s end of dela iLatching i Reset possible contact NENNEN on y atier pressing Contact operating diagram for the other
12. Four pole circuit breakers The initial protection setting is made using the dial on the neutral pole of the circuit breaker A The buttons the control unit may then be used for more precise setting The dial setting constitutes the upper limit for adjustments using the keypad Micrologic control unit 5 0 P 6 0 P and 7 0 P Setting OFF N 2 N Type of neutral Description No neutral protection The distribution system does not require protection of the neutral Half neutral protection The cross sectional area of the neutral conductor is half that of the phase conductors m The long time current setting Ir for the neutral is equal to half the setting value m The short time pickup Isd for the neutral is equal to half the setting value m Theinstantaneous pickup li for the neutral is equal to the setting value Full neutral protection The cross sectional area of the neutral conductor is equal to that of the phase conductors m The long time current setting Ir for the neutral is equal to the setting value m The short time pickup Isd for the neutral is equal to the setting value m The instantaneous pickup li for the neutral is equal to the setting value 04443726AA 09 2009 Schneider 23 Electric Overview of functions Current protection Ground fault and earth leakage protection For the default values the setting ranges increment Ground fault protection on Micrologic 6 0P steps and setting accuracies se
13. In circuit breaker rating 1 Oto 40 2 Oto 60 itis possible to enhance the Ir setting accuracy reduced range or disable the long time protection function by using a different long time rating plug See the technical appendix Changing the long time rating plug Thermal memory m 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 m The thermal memory assumes a cable cooling time of approximately 15 minutes 20 Schneider 04443726AA 09 2009 Overview of functions Current protection Idmtl long time protection Idmtl Protection Long time current setting Ir and Idmtl tripping delay tr Micrologic control unit Accuracy 5 0 P 6 0 P and 7 0 Current setting IrzIn 0 4 0 5 0 6 0 7 0 8 0 9 0 95 0 98 1 tripping between 1 05 and 1 20 Ir other ranges or disable by changing rating plug Time setting 0 5 1 2 4 8 12 16 20 24 EXEC MUI EJ Time delay s trat 1 5 x Ir 0 to 20 0 53 1 2 4 8 12 16 20 24 trat 6 x Ir 0 to 20 0 53 1 2 4 8 12 16 20 24 trat 7 2 x Ir 0 to 20 0 53 1 2 4 8 12 16 20 24 trat 10 x Ir 0 to 20 0 53 1 2 4 8 12 16 20 24 CSU sm ce FE UII Time delay s trat 1 5 x Ir 0 to 30 1 9 3 8 7 6
14. VIT very inverse time curve It 0 EIT extremely inverse time curve 124 0 HVF compatible with high voltage fuses 14 m Neutral protection Overload protection long time for the neutral is disabled if the Idmtl protection function is selected However the short circuit protection short time and instantaneous remains operational m intermittent overloads As long as the Micrologic P control unit remains supplied with power the effects of intermittent overloads on cables are calculated If power is cut temperature rise in cables is not calculated m Circuit breaker thermal limit For certain settings the Idmtl curves may be limited by the 121 curve when the tripping delay tr is set to 24 seconds or by its thermal memory The maximum 124 curve remains active for the phases and the neutral even when the Idmtl curves are activated 04443726AA 09 2009 Scbneider 21 Overview of functions Current protection Short time and instantaneous protection For the default values the setting ranges increment Short time protection steps and setting accuracies see the technical m The short time protection function protects the distribution system against appendix impedant short circuits m The short time tripping delay and the I t ON and I t OFF options can be used to ensure discrimination with a downstream circuit breaker m This function carries out true rms measurements m Use of l t curves with short time protection OFF se
15. e Adjust the other settings Quit the setting screen Confirm and confirm 48 Schneider 04443726AA 09 2009 Protection settings Fine adjustment of the long time Idmtl short time and instantaneous settings using the keypad Select the command Current protection ldmti A 71739 long time current setting Ir long time tripping delay tr Idmtl protection DT SIT VIT EIT HVF short time pickup Isd short time tripping delay tsd instantaneous pickup li E71718A E60278A E60151A lami A Change settings with Idmtl A Bn UD UD then then Select yes Select a setting Change the setting E60279A E60280A E71657A Do you want to save new settings e e Confirm Adjust the other settings Confirm 04443726AA 09 2009 Schneider 49 Protection settings Fine adjustment of the ground fault and earth leakage protection setting using the keypad Select the command Current 08120019 08120020 IZA protection Trip 1 1200 threshold 0 5s time delay then Select a setting DB120021 DB 120022 DB120023 06 Adjust the value Confirm Go to the next setting 14 Trip 1198A Bo o Adjust the value Confirm Quit the setting screen When all the settings have been adjusted quit the screen by pressing one of the menu access buttons This saves the new values DB120024
16. 13 and on IN depending on the type of system Storing and reset of the maximum demand currents access to the following sections Instantaneous phase to phase U12 U23 U31 and phase to neutral V1N V2N V3N voltages depending on the type of system Average voltage U average of the phase to phase voltages Unbalance voltage U unbal of the phase to phase voltages Phase sequence 04443726AA 09 2009 E60392A E60393A E60394A Discovering Micrologic P 04443726AA 09 2009 Metering Power measurements P kW access to the following sections P Instant o Total active power P P Q S Total reactive power Q Total apparent power S Power Power factor PF factor Demand _ Demand values for the 0 5 m total active power P m total reactive power Q m total apparent power S Storing and reset of Max the maximum demand power values Energy measurements E kWh access to the following sections E total Total active energy E P Total reactive energy E Q Total apparent energy E S Ein Positive component of m the total active energy E P m the total reactive energy E Q E out Negative component of m the total active energy E P m the total reactive energy E Q Reset Energy Reset all the energy values to zero Frequency measurement F Hz
17. 690V 5 00s Drop out 685V 0 50s 1 aD then o Alarm Pick up 690V 5 00s Drop out 685V 0 505 Umax V Do you want to save new settings Set the other parameters Quit the setting screen Confirm 04443726AA 09 2009 Schneider 53 Protection settings Setting load shedding reconnection Select the command E71673B Load 2 shedding type of shedding I or P Load operating mode On Off shedding P Pick up pickup threshold pickup time delay Drop out dropout threshold dropout time delay 54 Schneider 04443726AA 09 2009 Electric Protection settings Setting load shedding reconnection Example Take load shedding reconnection depending on power Load Load P Load shedding shedding shedding Pick up Pick up Pick up 1000kW 1000kW 1000kW 3600s 3600s 3600s Drop out Drop out Drop out 1000kW 1000kW 1000kW 10s 10s 10s 88 9 UD o Select the first setting Select Confirm m Off load shedding disabled m On load shedding enabled 71674 71675 71676 Load shedding P On Pick up 1000kW 3600s Drop out 980kW 10s Load shedding P On Pick up 1000kW 3600s Drop out 985kW 10s Load shedding P On Pick up 1000kW 3600s Drop out 985kW 10s Mn 9 Select the existing Adjust Confirm dropout threshold When all the settings have been made quit the screen
18. DB120025 DB120025 50 Schneider 04443726AA 09 2009 ectric Protection settings Setting the neutral protection Select the command Using the keypad on the control unit Current protection E89237B E89238B E89239B Ineutral A Neutral CT neutral A Neutral CT neutral A neutral Neutral CT Caution Internal Selection of the CT type determines the Ineutral protection in the Protection menu m none disables the neutral protection m Internal for a four pole circuit breaker provides access to the N 2 N and OFF protection functions m External for a three pole circuit breaker provides Protection Protection Protection access to the N 2 N 1 6xN and OFF protection functions OFF OFF OFF A GO Select Choose between Confirm m internal m external m none E89240B E89241B E89242B Type of circuit Possibles choices breaker Ineutral A Ineutral A neutral A Four pole OFF no neutral protection N 2 half neutral protection N full neutral protection Neutral CT Neutral CT Neutral CT Three pole OFF no neutral protection N 2 half neutral protection External External External N full neutral protection 1 6x N oversized neutral protection Protection N 2 Protection Protection OFF N 2 gs BD e Select Choose Confirm E89242B 71657 Ineutral A Neutral CT Do you want External to save new settings
19. 3 th Ir 3 att 8 8 8 tr tr Isd Isd tsd tsd li li 0 o o 0 i Ir LT threshold tr LT tripping delay Isd ST pickup tsd ST tripping delay li Instantaneous pickup th th th th DB119927 e I m 0 0 Ig ground fault pickup 04443726AA 09 2009 DB119928 DB119929 tg ground fault tripping delay Schneider Electric Discovering Micrologic P Setting Micrologic 7 0P using the dials DB119918 Consider a 2000 A circuit breaker Set the thresholds 8 long time In 2000 A 8I 78 9 95 3 Ir 0 5 x 2000 1000 A 4 1 xin gO Isd 2 x 1000 2000 A 4 6 8 1 Nie ET 2218 5 s 11 2 x 2000 4000 15 10 2 off setting lAn gt IAn 1A Sagra 2 10 In 2000 A 1 20 5 30 earth leakage paa See pages 22 to 26 for selection of the setting ranges Set the time delays E long time tr 1 5 8 4 12 2 16 1 20 Sacr tsd 0 2s o delay At 140 ms 0 350 140 60 800 earth leakage Thresholds Time delays curve It OFF curve curve It OFF curve sth dir SH by ir gt iu 8 8 8 8 tr tr Isd Isd tsd tsd li li gt 0 io oo o Ir LT threshold tr LT tripping delay Isd ST pickup tsd ST tripping del
20. 80 140 230 350 12t Off tg max break time 80 140 200 320 500 9 In circuit breaker rating Earth leakage protection on sur Micrologic 7 0 P m 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 pickup value IAn is displayed directly in amperes and the tripping delay follows a constant time curve An external rectangular sensor is required for this function m This function is inoperative if the long time rating plug is not installed N Protected against nuisance tripping A DC component withstand class A up to 10 A m If the optional external voltage measurement input is used a 24 V DC external power supply must be connected to Micrologic P terminals F1 F2 Pickup value lAn and tripping delay t Micrologic control unit 7 0P Pickup A lAn accuracy 0 to 20 Yo 0 5 1 2 3 5 ri 10 20 30 Time delay ms settings At max resettable time 60 140 230 350 800 At max break time 140 200 320 500 1000 24 Schneider 04443726AA 09 2009 Overview of functions Current protection Alarm current unbalance maximum current For the pickup and dropout thresholds and time delays Operating principle see the technical appendix Protection tripped by a maximum value sth 3 4 2 0 12 Alarm unbal max 1 pickup threshold 2 pickup time d
21. Com setup Remote control It is possible to set circuit breaker control to local only Manual or to local and remote Auto 04443726AA 09 2009 Setting up the COM communications option Remote settings Access permit Yes Remote settings Access permit Yes 71729 71730 71731 Remote settings Access permit Yes Access Access meo UD Access code Select the existing access Enter the first digit Confirm and proceed in code setting the same manner for the other digits Authorise remote control of the circuit breaker E71732A E71733A E71734A Remote control Remote control Remote control 06 o Press enter Select Auto or Manual Confirm Schneider 47 Electric Protection settings Fine adjustment of the long time 121 short time and Instantaneous settings using the keypad Select the command Current protection E71738A long time current setting Ir long time tripping delay tr short time pickup Isd short time tripping delay tsd instantaneous pickup li E60275A E60149A E60276A Trip 1000 A 1 0s 2000 A 0 2s 4000 A 8 Select a setting Adjust the value Confirm When all the settings have been adjusted quit the screen by pressing one of the menu access buttons This saves the new values E60277A E71657A Do you want to save new settings BD
22. Current measurements Voltage measurements Power measurements Energy measurements Frequency measurements Maintenance Resetting fault indications Viewing the event histories Operation counter and contact wear indicator Checking replacing the battery Tests Schneider Electric 48 49 50 51 Micrologic control units 5 0 P 6 0 P and 7 0P 2 Scbneider Electric Contents Technical appendix Tripping curves Voltage measurements Zone selective interlocking ZSI Power supply Changing the long time rating plug Thermal memory Data available via the COM communications option Threshold and time delay settings Other settings Measurement setting ranges and accuracy Power factor sign conventions Index 04443726AA 09 2009 04443726AA 09 2009 Schneider Discovering Micrologic P Identification All Masterpact NT and NW circuit breakers are Micrologic 5 0P equipped with a Micrologic control unit that can be changed on site Control units are designed to protect power circuits and Selective protection Idmtl power measurements and additional protection connected loads JF ETEO gu They offer current voltage frequency power and ti UIS iue energy measurements The functions provided by Micrologic 5 0 P 6 0 P and 7 0 P control units optimise continuity of service and power management in your installation 0 ir i 1 Selective protection Idmtl
23. M6C contacts Select the command Select an alarm Contacts Note M2C M6C An alarm may be selected if the Alarm or Trip Alarm mode was selected during setup of the given protection function in the Protection menu Alarm lt 3 E type 5 3 S2 g S2 UD E MD Select a contact Select an alarm Confirm Select the command Set up each contact Contacts m Select the latching mode 5 Setup M2C M6C 81 latching contact latching contact BD EB B8 Select a contact Select a latching mode Confirm m non latching m latching m time delay m locked to 1 m locked to 0 38 Schneider 04443726AA 09 2009 Setup Setting up the optional M2C M6C contacts m Setthe time delay for time delay latching 52 52 Mode Mode E71605A E71606A E71607A 52 Mode time delay time delay time delay Delay Delay Delay BUD UD Select the time delay Adjust Confirm Selectthe command Reset the contacts to 0 CET il wec Mec i 2 Reset S10 ELM S2 0 S2 1 Reset Reset uU Reset the contacts to O or cancel the reset then confirm 04443726AA 09 2009 Schneider 39 Electric Setup Select the command Micrologic setup Language Select the command Micrologic setup Date time If the time is set via a communications module any previous manual
24. Setting procedure Settings using the dials DB119915 m Open the protective cover m Make the necessary settings using the dials m The screen automatically displays the relevant curve m Check the set value on the screen in absolute value in amperes A and in seconds s Settings using the keypad m The a and Ios under the screen may be used for fine adjustments of the settings made using the dials m All the settings not available via the dials are made in the same manner using the keypad E60252B Caution Anew overload long time or short circuit short time and instantaneous protection setting B UT TER deletes all the fine adjustments previously made using the keypad for the overload long time and short circuit short time and instantaneous protection does not affect the fine adjustments made using the keypad for ground fault and earth leakage protection m does not affect any other settings made using the keypad Similarly anew ground fault or earth leakage protection setting made using one of the dials deletes all the fine adjustments previously made using the keypad for the and earth leakage protection m does not affect the fine adjustments made using the keypad for the overload long time short circuit short time and instantaneous protection m does not affect any ot
25. View E71698B Pmax Demand kW 2450 kvar 800 kVA 2700 Reset cancel the reset 04443726AA 09 2009 Metering Select the command E kWh To ensure reliable energy measurements the Power sign and Sign convention parameters must be set 04443726AA 09 2009 E71699A E71700B E71703A Energy measurements Measure the energy values E kWh E total Ein E out Reset energy then Select E total E P kWh 20168 E Q kvarh 2733 E S kVAh 22926 View the total energy values E71701B Select the energy value to be measured total energy m energy in positive component in the total energy m energy out negative component in the total energy E71702B E in kWh 21320 EP E Q kvarh 2770 View the energy in values View the energy out values Reset the energy values E KWh E total Ein E out Reset Energy then Select E71704A E71705A To reset energy press enter then Select yes or no If yes confirm Schneider Electric 63 Metering Select the command sla 64 F Hz ectric Frequency measurements 04443726AA 09 2009 04443726AA 09 2009 Schneider Maintenance Caution If the circuit breaker remains closed and the Ap LED remains ON after the reset open the circuit breaker and conta
26. are displayed The phase to neutral voltages V1N V2N and V3N are not displayed W 3 phases 4 wires 3 CTs method using three wattmeters The currents on phases 11 I2 and I3 are displayed Te neutral current IN canno be measured with mo The current on the neutral In is not displayed 3 phase 3 wire 3 CT and 3 phase 4 wire 3 CT The phase to phase voltages U12 U23 and U31 are displayed types The phase to neutral voltages V1N V2N and V3N are displayed 3 phases 4 wires 4 CTs method using three wattmeters For a 3 pole device the neutral if distributed must be The currents on phases 11 12 and I3 are displayed connected to terminal VN of the Micrologic P control The current on the neutral IN is displayed unit The phase to phase voltages U12 U23 and U31 are displayed The phase to neutral voltages V1N V2N and V3N are displayed Caution See the Overview of functions section for information on the available types of measurements Note It is advised not to use the 3 phase 4 wire 4 CT type of measurement unless the neutral is effectively connected to the control unit four pole circuit breaker with an external voltage measurement input E71630A E71631A 71632 Select Choose Confirm Selectithecommand Select the calculation method for demand current Metering setup Current Current Current Current demand demand demand E71945C E89200C E89201C demand
27. by moving the cursor up on the first menu Confirm by pressing Date o1 a Time 18 30 03 aD then Enter the month 04443726AA 09 2009 Setup Setting up the Micrologic control unit Date and time are backed up by battery E71613B E71614B Date Date 01 01 016 Time If time is not synchronised by the supervisor via the communication module a drift of up to one hour per year may be observed 01 01 2000 Time 18 30 03 18 30 03 Ba Bs Enter the year Setthe time in the same manner Select the command Circuit breaker selection ky Breaker Breaker Breaker Breaker selection selection selection selection Standard Standard Standard The circuit breaker code is required to identify the IE device and activate the contact wear counter Circuit breaker Circuit breaker Circuit breaker Masterpact Masterpact Masterpact Note this code if the control unit must be changed t example 03E7 ype pe NTO8N Enter this code when setting up a new control gt 03E7 NT H1 03E7 P Logicxxxxxx o then e Choose and confirm NT H1 03E7 P Logicxxxxxx Select the circuit breaker unit on the circuit breaker For a new device the code is set to zero When the main circuit breaker contacts are replaced a then this code must be reset to zero Select the standard P Logicxxxxxx Breaker Breaker Breaker E89324A E89325A E89
28. characteristics m output voltage 24 V DC m DC ripple less than 5 m power rating 5 W 5 VA Dielectric withstand input output 3 kV rms Schneider 04443726AA 09 2009 Power supply AD power supply module The AD power supply module provides auxiliary 24 V DC power for the control unit functions listed below m Graphic display device OFF or not supplied the long time short time instantaneous and ground fault protection functions operate under all circumstances on their own power m Activation of an M2C programmable contact The AD power supply module is required to assign an M2C programmable contact to an alarm The AD power supply module can supply the following voltages m 110VAC m 220VAC m 380VAC m 24 30V DC m 48 60V DC m 125 V DC Battery module Use of a BAT battery module mounted in series with the AD power supply module ensures a continous supply of 24 V DC power for 12 hours if the AD module fails Wiring diagrams m Reliable or backed up auxiliary system E60447A 77 Electric Technical appendix Power supply Using the AD power supply module The 24 V DC external power supply AD module is required for certain operating configurations as indicated in the table below m yes means the power supply is required m no means itis not required Circuit breaker M2C M6C programmable contacts option yes yes yes Display function no no yes Time st
29. frequency Instantaneous power and power factor Micrologic P offers a number of different measurements m Total power measurements instantaneous active power P in kW instantaneous reactive power Q in kvar instantaneous apparent power 5 in kVA m Measurement of the power factor PF Demand power m Display of the demand values for the active power P reactive power Q and apparent power S m Selection of the demand calculation method m Display of the interval over which the value is calculated m The maximum demand values are displayed and stored in memory m The stored maximums can be reset at at any time Note m the calculation method the type of calculation window fixed or sliding and its duration may be set in the Metering setup menu under History maintenance and setup m the synchronisation function Synchro Com is available only with the COM communication option with this function the demand power is determined on the basis of a signal synchronised by the communication module m these settings apply to all demand powers active power P reactive power Q and apparent power S If the settings are modified the demand values are systematically recalculated Energy Micrologic P offers a number of different measurements Total energy total active energy E P in kWh total reactive energy E Q in kvarh total apparent energy E S in kVAh m Energy consumed Energy in positively incremented ac
30. interval block interval or sync to comms type of window fixed or sliding sliding calculation interval 5to 60 minutes 15 minutes 1 minute Power sign P P P flow from top to bottom Sign convention IEEE IEEE IEEE alternate IEC Communication setup Type Range Factory setting Com parameter MODBUS adress 1 47 47 baud rate 9600 19200 bauds to 19200 bauds parity even even none Remote settings access authorisation yes no yes access code 0000 to 9999 0000 Remote control manual automatic automatic Protection setup Type Factory setting Current protection alarm trip OFF OFF voltage protection other protection Schneider 85 Electric Technical appendix m The accuracy of the current measurements depends on both the value displayed or transmitted and the circuit breaker rating where Accuracy 0 5 In 1 5 96 reading Example For a circuit breaker with a 4000 A rating and a current displayed on Micrologic of 49 A the accuracy is 0 5 Yo x 4000 1 596 x 49 21A s Schneider Measurement setting ranges and accuracy Measurement setting ranges and accuracy Type Range Accuracy at25 C 11 12 13 0 05 x In to 20 x In 1 5 IN 0 05 x In to 20 x In 41 5 l ground 0 05 x In to In 10 Yo earth leakage 0 to 30A 1 5 11 12 max I3 max 0 05 x In to 20 x In 1 5 IN max 0 05 x In to 20 x In 1 5 max ground 0 05 x In to In 10 ma
31. mode the dropout threshold is equal to the pickup threshold The dropout time delay is fixed and equal to 1 second o0 then e Select the first setting GO Choose Trip 52 Schneider Electric 04443726AA 09 2009 Protection settings Setting the IZ unbal T max U min U max U unbal rP max F min F max and phase rotation protection functions using the keypad E89295B E89293B Umax V Do you want to set the protection to Trip mode then Confirm m Setthe pickup and dropout thresholds and time delays Umax V 4 Umax V For protection tripped by a maximum value the dropout threshold is always less than or equal to the pickup threshold E71665A E71666A E71667A Umax V For protection tripped by a minimum value the dropout threshold is always greater than or equal to the pickup Alarm Alarm Alarm threshold Pick up Pick up Pick up If both the minimum and maximum protection values 690V 690V 690V are activated the minimum threshold is automatically limited to the value of the maximum and vice versa 5 00s 5 00s 5 00s Drop out 690V 0 50s oo then Select the existing Drop out 685V 0 50s Adjust Drop out 685V 0 50s Confirm dropout threshold setting When all the settings have been made quit the screen by pressing one of the menu access buttons E71668A 71657 This saves the new values Umax V Alarm Pick up
32. 15 2 30 4 45 5 60 7 75 8 91 trat6 x Ir 0 to 20 0 5 1 2 4 8 12 16 20 24 trat7 2x Ir 0 to 20 0 7 0 0 88 1 77 3 54 7 08 10 6 14 16 17 7 21 2 trat 10x Ir 0 to 20 0 7 2 0 8 1 43 2 86 5 73 8 59 11 46 14 33 17 19 ma o Time delay s trat 1 5xIr 0 to 3096 3 6 7 2 14 4 28 8 57 7 86 5 115 4 144 2 173 1 trat6 x Ir 0 to 20 0 5 1 2 4 8 12 16 20 24 trat 7 2 x Ir 0 to 20 0 7 0 81 1 63 3 26 6 52 9 8 13 1 16 34 19 61 trat 10 x Ir 0 to 20 0 7 2 0 75 1 14 2 28 4 57 6 86 9 13 11 42 13 70 21 cid a QE a Se AR Time delay s trat 1 5 x Ir 0 to 30 12 5 25 50 100 200 300 400 500 600 trat 6 x Ir 0 to 20 0 79 1 2 4 8 12 16 20 24 trat7 2xIr 0 to 20 0 7 2 0 69 1 38 2 7 5 5 8 3 11 13 8 16 6 trat 10x Ir 0 to 20 0 72 0 7 0 0 7 0 1 41 2 82 4 24 5 45 7 06 8 48 eisdem DAE nC we Be Aa ee ere Time delay s trat 1 5 x Ir 0 to 30 164 5 329 658 1316 2632 3950 5265 6581 7900 trat6 x Ir 0 to 20 0 70 1 2 4 8 12 16 20 24 trat 7 2xlr 0 to 20 0 7 0 7 1 1 1 42 3 85 5 78 7 71 9 64 11 57 trat 10x Ir 0 to 20 0 72 0 7 2 0 7 0 7 1 02 1 53 2 04 2 56 3 07 In circuit breaker rating 1 O to 40 2 0 to 60 m These curves with different slopes are used to improve discrimination with fuses positioned upstream HV and or downstream D protection for certain types of loads W Five types of curves are available DT definite time curve SIT standard inverse time curve 19 5
33. 17 LED indicating long time tripping LED indicating short time or instantaneous tripping LED indicating ground fault or earth leakage tripping LED indicating additional protection or auto protection tripping graphics display button for reset of fault trip LED reset and battery test Navigation 18 19 20 21 22 23 access button to the Metering menu access button to the History maintenance and setup menu access button to the Protection menu 7 button used to scroll down or reduce the displayed value button used to scroll up or increase the displayed value button used to select or confirm a choice Adjustment dials 24 25 26 27 28 29 30 31 32 33 34 35 1 These buttons include a LED indicating the active menu long time current setting Ir long time tripping delay tr short time pickup Isd short time tripping delay tsd instantaneous pickup li ground fault pickup Ig ground fault tripping delay tg earth leakage pickup lAn earth leakage tripping delay At LED indicating an overload test button for ground fault and earth leakage protection test connector 04443726AA 09 2009 E60235B E60237A 9 6988 E60239A E60241B Presentation Micrologic 5 0 P control unit long time amp amp e 99 GO Micrologic 7 0 P control unit
34. 326A 04443726AA 09 2009 selection Standard IEC Circuit breaker type 630b 03E7 P Logicxxxxxx o0 then Choose and confirm selection Standard IEC Circuit breaker Compact NS type 0 7 P Logicxxxxxx then Select the type selection Standard IEC Circuit breaker Compact NS type 0 7 aD then Choose and confirm Scbneider 41 Electric Setup Select the command Micrologic setup Power sign By default Micrologic P uses P for the power flowing from top to bottom terminals The selected direction of flow is valid for m measurement of power and the power factor m measurement of energy m load shedding and reconnection depending on power Select the command Micrologic setup VT ratio If the supply voltage for the control unit exceeds 690 V an external voltage transformer must be installed To display the true voltage values enter the transformation ratio between the primary and secondary voltages of the transformer Note that if Digipact display modules are used the rated distribution system voltage must be entered Select the command Micrologic setup System frequency If the phase rotation protection function is activated the 400 Hz frequency may not be selected If the 400 Hz frequency is selected the phase rotation protection function is disab
35. A 09 2009 Technical appendix Changing the long time rating plug Select the long time rating plug A number of long time rating plugs are available for Micrologic P control units Part number Setting range for the Ir value 33542 standard 0 4to1xIr 33543 low setting 0 4 to 0 8 x Ir 33544 high setting 0 8to 1 33545 without long time protection m In for the short time protection setting m Frequency protection not available Load shedding reconnection based on current not available Caution Change the long time rating plug Following any modifications to the long time rating Proceed in the following manner plug all control unit protection 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 DB119974 DB119975 Caution 4 snap out the rating plug 5 clip in the new rating plug If no long time rating plug is installed the control unit continues to operate under the following downgraded conditions m the long time current setting Ir is 0 4 m the long time tripping delay tr corresponds to the value indicated by the adjustment dial m the earth leakage protection function is disabled m the voltage measurement inputs are disconnected DB119976 6 refit the screw for the long time rating plug 7 check and or modify the control unit settings DB119977
36. Alarm the function issues an alarm and trips the circuit breaker m The protection functions against overloads long time short circuits short time and instantaneous and ground faults ground fault and earth leakage currents automatically result in tripping and cannot be deactivated Trip mode only m The Alarm and phase rotation alarms can be set exclusively to OFF or Alarm mode m The other protection functions for current voltage power and frequency may be set to any of the three modes OFF Alarm or Trip Alarm m The load shedding and reconnection function may be set to ON or OFF m The resettable alarms linked to device tripping are activated when the Ir Isd li or 14 thresholds overrun The Ir alarm is reset one second after tripping The Isd li and alarms are reset by pressing the button Ir a Isd li IL Pickup Dropout ir li Lalarms Other alarms Identical pickup and dropout thresholds Ir Isd li alarms Other alarms Pi 04443726AA 09 2009 m Delayed alarms are activated when the pickup and dropout thresholds are overrun and the corresponding time delays have expired 1 Alarm unbal T1 max T2 max T3 max m History logging Alarm mode as soon as a given protection threshold is overrun an alarm is ecorded in the Alarm history Trip mode as s
37. Low voltage electrical distribution Micrologic Control units 5 0 P 6 0 P and 7 0 P User manual 09 2009 Schneider Electric Micrologic control units 5 0 P 6 0 P and 7 0 P 04443726AA 09 2009 Contents Discovering Micrologic P Identification Presentation Setting procedure Setting Micrologic 5 0 P using the dials Setting Micrologic 6 0 P using the dials Setting Micrologic 7 0 Pusing the dials Selecting the type of neutral protection Main menus Metering History maintenance and setup Protection Overview of functions Current protection Voltage protection Other protection Load shedding and reconnection Measurements Alarms Optional M2C and M6C contacts Event histories LEDs and display screens COM communications option Setup Setting up the optional M2C M6C contacts Setting up the Micrologic control unit Setting up the metering functions Setting up the COM communications option Protection settings Fine adjustment of the long time l t short time and Instantaneous settings using the keypad Fine adjustment of the long time Idmtl short time and instantaneous settings using the keypad Fine adjustment of the ground fault and earth leakage protection setting using the keypad Setting the neutral protection Setting the unbal max U min U max U unbal max F min F max and phase rotation protection functions using the keypad Setting load shedding reconnection Metering
38. Micrologic power measurements and additional protection er gt IMicrologle 6 0 P E60232A DB119909 DB119911 PL on L Pt off Micrologic 6 0 P Selective protection Idmtl ground fault protection X type of protection W 2for basic protection 0 Ir Isd li 0 lg m 5 for selective protection m 6 for selective ground fault protection NG Selective protection Ground fault protection m 7 for selective earth leakage protection Idmtl Y version number Identification of the control unit generation 0 signifies the first generation Micrologic 7 0 P Z type of measurement Selective protection Idmtl earth leakage protection m Afor ammeter power measurements and additional protection m P for power meter amp 2i m H for harmonic meter IRRE at ath no indication no measurements am 8 8 0 ir lsd li oo lan I Selective protection Earth leakage protection Idmtl 4 Schneider 04443726AA 09 2009 Electric Discovering Micrologic P 10 11 top fastener terminal block for external connections housing for battery screw for long time rating plug long time rating plug cover opening point protective cover lead seal fixture for protective cover infrared link with communications interfaces connection with circuit breaker bottom fastener Indications 12 13 14 15 16
39. acts M2C M6C Micrologic setup Metering setup Com setup Event history Contacts M2C M6C Micrologic setup Metering setup Com setup Event history Contacts M2C M6C Micrologic setup Metering setup Com setup 04443726AA 09 2009 History maintenance and setup Micrologic setup Micrologic setup Language Date time Breaker selection Power sign VT ratio System frequency Metering setup access to the following sections Selection of the display language Setting of the date and time Indication of the circuit breaker type Setting the power sign Select of the primary and secondary voltages on the instrument transformer Indication of the rated system frequency Metering access to the following sections setup System type Current demand Power demand Sign convention m 3 phases 3 wires 3 CTs method using two wattmeters W 3 phases 4 wires 3 CTs method using three wattmeters 3 phases 4 wires 4 CTs method using three wattmeters with measurement of the neutral current Selection of the calculation method and setting of the time interval for the calculation Selection of the calculation method and setting of the parameters for the calculation Setting of the sign convention for the power factor and reactive power i e IEEE IEEE alte
40. acy Pickup threshold 50 to 100 Ir 100 Ir 1 6 Dropout threshold 30 Ir to shedding threshold shedding threshold 1 6 Pickup time delay 20 to 80 tr 80 tr 196 20 Yo 0 Yo Dropout time delay 10sto600s 10s 1s 20 Yo 0 Yo Pickup threshold 200 kW to 10 000 kW 10 000 kw 50 kW 2 5 Dropout threshold 100 kW to shedding threshold shedding threshold 50 kW 2 5 Pickup time delay 10 s to 3600s 3600s 10s 20 96 0 Dropout time delay 10 s to 3600s 10s 10s 20 Yo 0 Yo 8 4 Schneider 04443726AA 09 2009 Technical appendix 04443726AA 09 2009 Other settings M2C M6C contacts Type Range Factory setting Step Time delay 1 360s 360s 1s latching time delay Micrologic setup Type Range Factory setting Step Language German English UK English US English UK Italian French Spanish Chinese Date time 15 Circuit breaker no def selection Neutral TC no TC VT ratio primary voltage min 100 V max 1150 V 690 V 1V secondary voltage min 100 V max 690 V 690 V 1V System 50 60 Hz 50 60 Hz frequency or 400Hz Measurement setup Type Range Factory setting Step System type 3 CT 4w 4 CT 4w 3 4 4 Demand current calculation method thermal or block interval block interval type of window fixed or sliding sliding calculation interval 5to 60 minutes 15 minutes 1 minute Demand power calculation method thermal or block
41. amping function no no no Circuit breaker status indications and control via no no no communications bus Identification settings operation and maintenance aids via no no yes communications bus m If the 24 V DC external power supply AD module is used the maximum cable length between 24 V DC G1 G2 and the control unit F1 F2 must not exceed 10 metres m The communications bus requires its own 24 V DC power source E1 E2 This source is not the same as the 24 V DC external power supply module F1 F2 Selection of the voltage measurement inputs The voltage measurement inputs are standard equipment on the downstream connectors of the circuit breaker Itis possible to measure distribution system voltage externally using the PTE external voltage measurement input option With this option the internal voltage measurement inputs are disconnected The PTE option is required for voltages greater than 690 V in which case a voltage transformer is required When the PTE option is implemented the supply circuit of the voltage measurement input must be protected against short circuits Installed as close as possible to the busbars this protection function is ensured by a P25M circuit breaker 1 A rating with an auxiliary contact cat no 21104 and 21117 The supply circuit of the voltage measurement input is reserved exclusively for the control unit and must never be used to supply other circuits 78 Schneider 04443726A
42. ay li Instantaneous pickup gu gu lAn At We 23 0 0 lAn earth leakage pickup At earth leakage tripping delay 10 Schneider 04443726AA 09 2009 Electric E51383A Discovering Micrologic P Caution With the 4P 3D setting the current in the neutral must not exceed the rated current of the circuit breaker 04443726AA 09 2009 Selecting the type of neutral protection Selection dial on four pole circuit breakers On four pole circuit breakers it is possible to select the type of neutral protection for the fourth pole using the three position dial on the circuit breaker no neutral protection 3D m half neutral protection 3D N 2 m full neutral protection 4P 4D The factory default setting is 3D N 2 Schneider 11 Electric Discovering Micrologic P When a menu button is pressed a presentation screen is displayed and the green LED on the button goes ON 12 Schneider Electric E60101A Main menus The Micrologic P control unit offers access to the main screen and three menus m the main screen displaying the continuous measurement of the phase currents 11 12 13 and the neutral current IN if it exists m the Metering menu m the History maintenance and setup menu m the Protection menu Main screen As long as no functions are activated Micrologic P control units display in real time the current on the most heavily loaded phase The n
43. ct the after sales support department 66 Schneider Electric E60306B Resetting fault indications The fault indication is maintained until it is reset on the control panel Press the reset button Eur ic 7 0 P Ir 04443726AA 09 2009 Maintenance Select the command Event e history Trip history Select the command Event history Alarm history 04443726AA 09 2009 71706 E71708A Trip history Trip history U min 27 01 1999 Ir 27 06 1998 Ir 18 02 1998 7 4 then Select a fault Alarm history Alarm history 12 max 27 01 1999 In max 23 03 1998 U max 12 02 1998 then Select an alarm Viewing the event histories E71707A Trip 22 11 1999 02 04 04 Umin 160V View E71709A Alarm 27 01 1999 13 06 09 12 max 3400A View Schneider Electric 67 Maintenance Operation counter and contact wear indicator Select the command View and or reset the operation counter Event 5 3 5 history 5 Number of Number of 5 Number of operations operations operations Operation counter Total Total Total 17824 17824 17824 Operations Operations Operations since last since last since last reset reset reset 6923 0 6923 Reset Reset Reset o then e Reset or cancel the reset then confirm Select t
44. dication This function can be used to m Determine the condition of the most worn contact in the circuit breaker A counter is displayed on the screen The contacts must be inspected each time the counter reaches a hundred mark The message Not available or circuit breaker type not defined is displayed if the type of circuit breaker has not been defined In this case See Breaker selection in the Micrologic setup menu under History maintenance and setup m Resetthe indicator after changing the main contacts Reset is also carried out via Breaker selection in the Micrologic setup menu Note If the control unit is changed the circuit breaker must be defined again In this case see Breaker selection in the Micrologic setup menu under History maintenance and setup Schneider 33 Electric Overview of functions The procedure required to reclose the circuit breaker following a fault trip is presented in the circuit breaker user guide Concerning the presence or absence of an external power supply see the Power supply section in the technical appendix Caution The battery maintains the trip indications If no indications are displayed check the battery 34 Schneider Electric E60444A 1 E60495A E60298A LEDs and display screens LED indicator Overload bargraph on the main screen Micrologic 5 0 P Signals overrun of the Signals the load l
45. e access to the frequency measurement Schneider 15 Electric E71711A E71713A Discovering Micrologic P History maintenance and setup Press tne Ng button to select the History maintenance and setup menu Ja move the cursor down the screen or decrement a value move the cursor up the screen or increment a value select an option in a list confirm a selection or the value of a setting indicates that the operator is in the History maintenance and setup menu 2 and returns to the previous screen return to the main screen N N Event history Event access to the following sections history Event history Contacts M2C MeC Trip The last ten faults recorded Micrologic history setup The last ten alarms recorded Metering Alarm setup histor Com Operation Number of operations opening or closing setup counter Contact Wear of the circuit breaker main contacts wear M2C M6C Contacts vent history Contacts e access to the following sections M2C M6C Contacts M2C M6C Alarm Assignment of a protection alarm to an M2C or an t M6C contact Micrologic ype setup Latching mode for each M2C M6C contact Metering Setup 2 setup Reset of the M2C or M6C contacts Com Reset setup Electric 16 Schneider 04443726AA 09 2009 E71714A 71715 71716 Discovering Micrologic P Event history Cont
46. e supplied with power and closed for the test Press the TEST button The circuit breaker should trip DB119963 If the circuit breaker does not trip contact the after sales support department Refer to the manual that comes with the test kits Mini test kit and portable test kit The test connector is used to connect the mini or the portable test kit to check that the control unit is operating correctly DB119964 DB119965 70 Schneider 04443726AA 09 2009 Electric 04443726AA 09 2009 Schneider Technical appendix 72 Schneider Electric E71753A 5 5 t s 200 Tripping curves Long time I t short time and instantaneous protection Micrologic 5 0 P 6 0 P 7 0 P i Ir 0 4 1xIn Str 0 5 245 002 001 5 7 1 2 345 7 10 20 3 5 7 10 20 30 5 Long time Idmtl short time and instantaneous protection Micrologic 5 0 P 6 0 P 7 0 P 100 000 10 000 5 000 2 000 1 000
47. e the technical m An ground fault in the protection conductors can provoke local temperature rise at appendix the site of the fault or in the conductors The purpose of the ground fault protection function is to eliminate this type of fault m There are two types of ground fault protection Type Description Residual m The function determines the zero phase sequence current i e the vector sum of the phase and neutral currents depending on the type of installation Source Ground Return W Using a special external sensor this function directly measures the fault current returning to the transformer via the earth cable m It detects faults both upstream and downstream of the circuit breaker m The maximum distance between the sensor and the circuit breaker is ten metres m Ground fault and neutral protection are independent and can therefore be combined Ground fault pickup lg and tripping delay tg The pickup and tripping delay values can be set independently and are identical for both the residual and source ground return ground fault protection functions Micrologic control unit 6 0 P Pickup Ig In x accuracy 10 A B D E F G H J In 400A 0 3 0 3 0 4 0 5 0 6 0 7 0 8 0 9 1 400A lt Ins 1200A 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 1 In 5 1200A 500A 640A 720A 800A 880A 960A 1040A 1120A 1200A Time delay ms settings 12t Off It Off 0 0 1 0 2 0 3 0 4 at In or 1200A It On 0 1 0 2 0 3 0 4 On or tg max resettable time 20
48. ection functions 04443726AA 09 2009 Schneider 81 Technical appendix Threshold and time delay settings Long time 21 and Idmtl protection Type Range Factory setting Step Accuracy Ir current setting 0 4 to In maximum 1A 1 05 to 1 20 Ir tr tripping delay 0 5to 24s maximum 0 56 20 0 Short time protection Type Range Factory setting Step Accuracy Isd pickup 1 5to 10 Ir maximum 10A 10 96 tsd tripping delay 0 0 1 0 2 0 3 0 4s maximum 0 1s Instantaneous protection Type Range Factory setting Step Accuracy li pickup 2 to 15 In or off maximum 10A 10 96 Ground fault protection on Micrologic 6 0 P Type Range Factory setting Step Accuracy Ig pickup depends on rating maximum 1A 10 tg tripping delay 0 0 1 0 2 0 3 0 4s maximum 0 1s Earth leakage protection on Micrologic 7 0 P Type Factory setting Step Accuracy lAn pickup maximum 0 1A 2096 0 Attripping delay 60 140 230 350 800 ms maximum 1 setting Neutral protection Type Range Factory setting Three pole device Off N 2 N 1 6xN off Four pole device Off 2 N N 2 82 Schneider 04443726AA 09 2009 Technical appendix Threshold and time delay settings Current protection Type Range Factory setting Accuracy Pickup threshold 5 Yo to 60 Yo 60 196 10 96 0 Yo Dropout threshold 5 Yo of pickup threshold pickup threshold 196 10 Yo 0 Yo Pickup time delay 1sto40s 40
49. elay 3 dropout threshold 4 dropout time delay For protection tripped by a maximum value it is possible to set a pickup threshold 1 that activates an alarm a contact and or tripping a pickup time delay 2 that steps in when the pickup threshold 1 is reached a dropout threshold 3 corresponding to deactivation of the alarm and or contact a dropout time delay 4 that steps in when the dropout threshold 3 is reached m The dropout threshold is always less than or equal to the pickup threshold Alarm m The alarm function is tripped by the rms value of an earth leakage current m This alarm signals an earth leakage current under the pickup value and does not produce circuit breaker tripping Current unbalance protection unbal m This protection is activated by an adjustable level of unbalance between the RMS values of the three phase currents 8 Ik m From 5 l avg is the average value of the rms currents of the three phases Mazel 3 E max is the maximum difference between the current of each phase and avg m Micrologic P uses the two values above to calculate the current unbalance avg unbal Maximum current protection per phase Imax m Protection values may be set for each of the following currents max maximum current on phase 1 12 max maximum current on phase 2 13 max maximum current on phase 3 IN max maximum cu
50. evel on long time current setting each phase as a 1 125 x Ir percentage of Ir Fault trip indications m Control unit status The circuit breaker has tripped The control unit may or may not have an external power supply The voltage measurement inputs may be connected upstream or downstream control unit without an control unit with an external power supply external power supply and with voltage and with voltage measurement input measurement input connected downstream connected upstream a Micrologic 5 0 P 3 Micrologic 5 0 P m signals the type of type of fault is fault Ir Isd li Ig An or signalled by a LED and Ap on the graphic display 04443726AA 09 2009 Overview of functions The self protection function excessive temperature fault detected in ASIC power supply or instantaneous self protection built into the device trips the circuit breaker and turns the Ap LED on A number of simultaneous causes may result in tripping For example a short circuit and a distribution System voltage under a set value The LED signalling the last fault chronologically is the only one to remain ON E g the Ap LED may signal a voltage drop under a set value where the voltage drop was caused by a short circuit 04443726AA 09 2009 E60337B E60339B E60485A LEDs and display screens m Fault trip LEDs m The LEDs indicate the type of faul
51. f the U avg Emad three phases U12 U23 U31 3 E max is the maximum difference between the voltage of each phase and U avg m Micrologic P uses the two values above to calculate the voltage unbalance Uunbal max Uavg Uavg 0 012 023 U31 04443726AA 09 2009 Overview of functions For the pickup and dropout thresholds and time delays see the technical appendix If the voltage protection functions are activated and the voltage measurement inputs are still energised it is impossible to reset and close the circuit breaker 04443726AA 09 2009 DB119949 Other protection Reverse power min frequency max frequency phase rotation Operating principle protection tripped protection tripped by a minimum value by a maximum value th Sth 1 2 3 1 2 4 4 2 gt 0 Fmin 0 F max rP max 1 pickup threshold 2 pickup time delay 3 dropout threshold 4 dropout time delay m For protection tripped by a minimum or maximum value it is possible to set a pickup threshold 1 that activates an alarm a contact and or tripping a pickup time delay 2 that steps in when the pickup threshold 1 is reached a dropout threshold 3 corresponding to deactivation of the alarm and or contact a dropout time delay 4 that steps in when the dropout threshold 3 is reached m For protection tripped by a minimum value the dropout threshold is always greater than or equal to the pickup thres
52. ge of the rated distribution system voltage the differences between the real voltages and the measured values are not significant and Micrologic will operate under all circumstances in the expected manner Voltage unbalance protection This function is based on the measurement of the phase to phase voltages In diagrams 1 3 and 4 on the next page a fuse has blown The control unit reinjects voltage on the failed phase and measures a phase to phase voltage higher than the actual voltage The phase to neutral voltage should be zero but the value measured is not zero In diagram 2 the phase to neutral voltage is effectively zero and the measurement indicates zero as well By limiting the pickup threshold of the voltage unbalance protection to the 096 2096 range the differences between the real voltages and the measured values are not significant and Micrologic will operate under all circumstances in the expected manner Phase failure Detection of phase failure is not possible on the basis of the minimum voltage and voltage unbalance protection functions The Micrologic power supply requires at least two phases between 100 and 690 V In diagrams 1 3 and 4 if two phases have failed Micrologic H measures for the three phases the value of the single voltage present e g U12 U23 U31 410 V 74 Schneider 04443726AA 09 2009 Technical appendix Voltage measurements m Diagram 1 Contactor DB120006 Fuses pa QUE
53. he command Check the wear of the contacts Event 8 wear Contact wear Contact wear is indicated from 0 to 900 The contacts should be inspected every time the counter reaches a 59 multiple of 100 68 Schneider 04443726AA 09 2009 Electric Maintenance If the battery needs to be changed order a new battery with the Schneider Electric catalogue number 33593 m Lithium battery 1 2 3 6 V 800 mA h m Ambient temperature 130 C 04443726AA 09 2009 Checking replacing the battery Check the control unit battery E60307A Micrologic 7 0 P 4 1919796 Press and hold down the test button on the control unit to check the LEDs and the battery The battery information is displayed if the control unit is equipped with an external power supply or if the circuit breaker is ON ERE Battery fully charged Battery half charged No battery or must be replaced Replacing the control unit battery 1 remove 2 remove the battery the battery cover 71751 DB119959 DB119960 3 insert a new battery 4 put the cover back Check the polarity in place Press the battery test button to check the new battery gd DB119961 DB119962 wp Schneider Electric 69 Maintenance Tests Test the ground fault Micrologic 6 0 P and earth leakage Micrologic 7 0 P protection functions The circuit breaker must b
54. her settings made using the keypad 04443726AA 09 2009 Discovering Micrologic P With the protective cover closed it is not possible to set the protection functions However it is possible to set metering functions and alarms as well as view all measurements settings and histories 04443726AA 09 2009 DB119916 DB119917 Setting procedure View the settings and measurements m Close the protective cover for the dials Access to the dials is blocked and it is no longer possible to make fine adjustments using the keypad E60254B m If necessary install lead seal to protect the settings m Settings may be viewed at any time using the keypad Caution If you notice that the tab on the back of the protective cover has been broken off contact the Schneider Electric after sales support department to replace the cover Schneider Electric Discovering Micrologic P Consider a 2000 A circuit breaker DB119918 Setting Micrologic 5 0 P using the dials Set the thresholds DB119919 long time 6 6 5 98 In 2000 A Ir 0 5 x 2000 1000 A Isd 2 1000 2000 A li 2 x 2000 4000 A short time instantaneous Isd Maga mw 3 B 5 6 5 10 2 5 o 4 12 2 8 3 165 S 10 2
55. hold m For protection tripped by a maximum value the dropout threshold is always less than or equal to the pickup threshold m If both the minimum and maximum protection functions are activated at the same time the minimum threshold is automatically limited to the value of the maximum and vice versa Reverse power protection rP max m This function calculates the value of the total active power on the three phases m The function is activated when the total active power of the three phases flows in the direction opposite that set by the user is greater than the pickup threshold 1 for atime greater than the time delay 2 Note The direction of flow is set by the user in the Power sign section of the Micrologic setup menu under History maintenance and settings m corresponds to the normal direction of flow i e from the top terminals on the circuit breaker to the bottom terminals m isthe opposite Minimum and maximum frequency protection F min and F max These functions monitor the value of the frequency on the distribution system Phase rotation alarm This alarm is activated if two of the three phases are inverted Note The alarm is activated following a fixed 300 millisecond time delay If one of the phases is absent the alarm will not operate If the 400 Hz frequency is set the alarm cannot be activated Schneider 27 Electric Overview of functions Load shedding and reconnecti
56. ickup threshold pickup threshold 196 20 Yo 0 Yo Pickup time delay 1sto40s 40s Ts 20 0 96 Dropout time delay 105103605 105 15 20 Yo 0 Yo 4 04443726AA 09 2009 Schneider 8 Technical appendix Threshold and time delay settings Other protection Type Factory setting Step Accuracy Pickup threshold 5 to 500 kW 500 kW 5 kW 2 5 Dropout threshold 5 kW to pickup threshold pickup threshold 5 kW 2 5 Pickup time delay 0 2 sto 20s 20s 0 15 0 20 Dropout time delay 1 s to 360 s 1s 0 1s 0 96 20 Pickup threshold F min pickup threshold to 440 Hz 65Hz 0 5 Hz 0 5 Hz Dropout threshold 45 Hz to pickup threshold pickup threshold 0 5 Hz 0 5 Hz Pickup time delay 1 2sto5s 5s 0 1s 0 96 20 Yo 02 Dropout time delay 1 2sto36s 1 25 0 15 0 96 20 2 Pickup threshold 45 Hz to F max pickup threshold 45Hz 0 5Hz 0 5 Hz Dropout threshold pickup threshold to F max pickup threshold 0 5 Hz 0 5 Hz pickup threshold Pickup time delay 1 2sto5s 5s 0 1s 0 Yo 420 Dropout time delay 1 2 s to 36 s 1 2s 0 1s 0 Yo 20 2 Pickup threshold Ph1 Ph2 Ph3 or Ph1 Ph3 Ph2 Ph1 Ph2 Ph3 none none Dropout threshold pickup threshold pickup threshold none none Pickup time delay 0 3s 0 3s none 096 50 Yo Dropout time delay 0 3s 0 3s none 096 50 Yo 1 30 on dial 0 2 s 2 30 upto 1 5s Load shedding and reconnection Type Range Factory setting Step Accur
57. ion of the demand calculation method m Display of the interval over which the value is calculated m The maximum demand values are displayed and stored in memory m The stored maximums can be reset at any time Note The calculation method the type of calculation window fixed or sliding and its duration may be set in the Metering setup menu under History maintenance and setup Phase to neutral and phase to phase voltages Micrologic P offers different voltage measurements m Phase to phase voltages rms between phases U12 U23 and U31 displayed in volts m Phase to neutral voltages rms between the phases and the neutral VIN V2N and V3N displayed in volts Average voltage Average Uavg of the instantaneous voltages between phases U12 U23 and U31 Phase rotation Displays the phase sequence Voltage unbalance Display of the unbalance Uunbal between the three phase to phase voltages displayed as a percentage UA m From Emad U avg is the average value of the rms voltages of the U avg three phases oe Da 0 U12 023 U31 the maximum difference between the voltage of each phase and U avg m Micrologic P uses the two values above to calculate the voltage unbalance Uunbal Emex U avg Schneider 29 Electric Overview of functions For the setting ranges and measurement accuracies see the technical appendix 30 Schneider Electric Measurements Power energy and
58. lected the protection function implements a constant time curve Pt ON selected the protection function implements an I t inverse time curve up to 10 Ir Above 10 Ir the time curve is constant For the characteristics and external wiring of the zone Zone selective interlocking 251 selective interlocking function see the technical The short time and ground fault protection functions enable time discrimination by appendix on Zone selective interlocking 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 m intermittent faults are taken into account by Micrologic P and may lead to shorter tripping times than those set Short time pickup Isd and tripping delay tsd Micrologic control unit 5 0 P 6 0 P and 7 0 P Pickup Isd Ir x accuracy 10 1 5 2 25 3 4 5 6 8 10 Time delay ms setting 12t Off 0 0 1 0 2 0 3 0 4 at 10 Ir lt On 0 1 0 2 0 3 0 4 Pt On or tsd max resettable time 20 80 140 230 350 12t Off tsd max break time 80 140 200 320 500 If the without long time protection plug is used and the long time protection function is disabled the short time pickup Isd is automatically multiplied by In instead of Ir as is the standard case Instantaneous protection m The instantaneous protection function protects the distribution system against s
59. led 42 Schneider Electric E71642B E71624A E71627A Setting up the Micrologic control unit Select the sign of the power Select E71643B Power sign k Choose E71644B Confirm Enter the voltage transformation ratio VT ratio Primary Secondary 690V 71625 VT ratio Primary Secondary 690V E71626A VT ratio Primary 690V Secondary B BB ag Select either the m primary voltage m secondary voltage System frequency Select Enter the rated frequency E71628 Enter the voltage System frequency Choose E71629A Go on to the next setting System frequency Confirm 04443726AA 09 2009 Setup Setting up the metering functions Prior to setting up the protection functions or carrying out measurements the following operations are required m entry of the system type m selection of the calculation mode for the demand current m selection of the calculation mode for the demand power m select the power sign m select the sign convention for the power factor measurement Select the command Select the system type Metering The Micrologic P control unit offers three measurement options N setup m 3 phases 3 wires 3 CTs method using two wattmeters The currents on phases 11 I2 and are displayed System The current on the neutral IN is not displayed type The phase to phase voltages U12 U23 and U31
60. mation is equivalent to the long time thermal memory and reduces the tripping delay for the short time protection Following a trip the short time tsd tripping delay is reduced to the value of the minimum setting for 20 seconds Ground fault protection and intermittent faults The ground fault protection implements the same function as the short time protection see above 80 Schneider 04443726AA 09 2009 Technical appendix Data available via the COM communications option The COM communications option can be used to Measurements remotely access the Micrologic P measurement m Currents setting maintenance and protection values instantaneous currents maximum and minimum instantaneous currents average instantaneous currents instantaneous current unbalance per phase maximum and minimum instantaneous current unbalance per phase m Demand current demand current per phase maximum and minimum demand current per phase since last reset prediction of demand current per phase time stamping of demand current maximums and minimums m Voltages phase to neutral and phase to phase voltages average phase to neutral and phase to phase voltages phase to neutral and phase to phase voltage unbalance maximum and minimum phase to neutral and phase to phase voltage unbalance W Active reactive and apparent power per phase m Demand power demand power per phase maximum and minimum demand power per phase since last reset maximum and mi
61. mmand I Demand 04443726AA 09 2009 E60192A E71678A Current measurements m Reset the maximeter Imax instant IN 12 0A 0A 0A 0A 0A Reset Reset the maximeter or Measure a demand current value E60191A Imax instant 5600A 4800 A 4700 A IN 800 A 1 28 Reset cancel the reset m Measure the demand currents Demand 11 12 13 IN Max o then Select 71679 View Schneider Electric 57 Metering Current measurements m Check the demand current maximeter Demand 11 12 13 E71680A E71681A Imax Demand 15min 4020 A 4450 A 4300 A 600A Reset Max then Select View m Reset the maximeter E71682A E71683A Demand 15min 4020A l 2 4450A 4300 A In 600A Reset OA OA Reset Reset the maximeter or cancel the reset 58 Schneider 04443726AA 09 2009 Electric Metering Select the command SU v The phase to neutral voltages are displayed if the selected system type is 3 phase 4 wire see page 43 04443726AA 09 2009 Voltage measurements Measure an instantaneous voltage value U or V U V Instant E89257B E60193A Average Unbal 30 Phase rotation Select View Measure the average voltage U avg Uavg Instant Average 402 V
62. ng time current setting Ir for the neutral is equal to half the setting value The short time pickup Isd for the neutral is equal to half the setting value m Theinstantaneous pickup li for the neutral is equal to the setting value m For ground fault protection Micrologic 6 0 P pickup Ig for the neutral is equal to the setting value Full neutral protection The cross sectional area of the neutral conductor is equal to that of the phase conductors m The long time current setting Ir for the neutral is equal to the setting value m The short time pickup Isd for the neutral is equal to the setting value m Theinstantaneous pickup li for the neutral is equal to the setting value m For ground fault protection Micrologic 6 0 P pickup Ig for the neutral is equal to the setting value Oversized neutral protection In installations with a high level of third order harmonic currents or multiples thereof the current in the neutral conductor may exceed that of the phase currents under steady state conditions m The long time current setting Ir for the neutral is 1 6 times that of the setting value The short time pickup Isd for the neutral is 1 6 times that of the setting value but may not exceed 10 In to limit transients and self protect the installation m Theinstantaneous pickup li for the neutral is equal to the setting value m For ground fault protection Micrologic 6 0 P pickup Ig for the neutral is equal to the setting value
63. nimum recommended demand power per phase time stamping of demand power maximums and minimums m Energy total active and reactive energy positively incremented energy negatively incremented energy m System frequency m Power factor m Reset date of demand currents demand power and energy Setup Maintenance m Setting ofthe control unit date and time m Password for the measurement module m Control unit ID code m Control unit ID name m Selection of the measurement calculation algorithm m Sign convention for the active power Total energy measurement mode Interval for the demand current calculation window Power quality indication Demand power calculation mode Interval for the demand power calculation window Battery charge indication m Trip and alarm histories m Operation counter and contact wear indicator m Assignment and setup of programmable contacts m Eventlog and maintenance register Protection m Circuit breaker rated current m Type of neutral protection m Long time l t protection settings m Long time Idmtl protection settings m Short time protection settings m Instantaneous protection settings m Ground fault protection settings m Earth leakage protection settings m Current unbalance I alarm and maximum current protection settings m Voltage protection settings m Setting for other prot
64. nted energy Neutral CT Neutral protection Neutral protection setting No neutral protection Operation counter Oversized neutral protection P Parity Phase rotation Phase sequence Phase to neutral and phase to phase voltage Portable test kit Positively incremented energy Power demand calculation Power factor Power sign Power supply Protection menu R Remote control Remote settings Resetting the alarms and fault indications Resetting the contacts Resetting the energy values Resetting the maximum demand current values Resetting the maximum demand power values Resetting the maximum instantaneous current values Resetting the operation counter rP max S Self protection Setting dials Short time protection Sign convention SIT System frequency System type 30 63 11 23 23 51 23 51 27 52 29 59 30 63 30 44 13 18 32 38 27 52 Schneider Electric 89 Index T Tab 7 Temperature 35 Test connector 5 70 tg tripping delay 24 Thermal memory 20 80 trtripping delay 20 21 Transformation ratio 42 Trip 4 Trip history 33 67 Tripping curves 72 tsd tripping delay 22 U U max 26 52 U min 26 52 U unbal 26 52 59 V VIT 21 49 Voltage U avg 26 29 59 2 Zone selective interlocking 76 90 Schneider 04443726AA 09 2009 04443726AA 09 2009 Notes Schneider Electric 91 Scbneider Electric Notes 04443726AA 09 2009 Schneider Electric Indust
65. off x Ir x In setting In 2000 A See pages 22 and 24 for selection of the setting Set the time delays ranges 8 long time tr 1 5 8 NES 64 12 2 16 5 22 tsd 0 26 eelr short time 34 tsd Thresholds Time delays ON curve 12 OFF curve 14 curve 12 OFF curve 8 a a g 3 th Ir gu Ir E th su tr tr Isd Isd tsd tsd li li 0 0 0 o Ir LT threshold tr LT tripping delay Isd ST pickup tsd ST tripping delay li Instantaneous pickup 8 Schneider Electric 04443726AA 09 2009 DB119918 DB119920 DB119926 Discovering Micrologic P Consider a 2000 A circuit breaker In 2000 A See pages 22 to 26 for selection of the setting ranges DB119924 DB119925 Setting Micrologic 6 0 P using the dials Set the thresholds long time In 2000 A 78 4 6 95 5 98 gt Ir 0 5 x 2000 1000 A 4 1 x In short time 4 instantaneous Isd 4 li 8 6 7 10 Isd 2x 1000 2000 A N N 2 8 3 1 npe NS PN li 2x 2000 4000 A setting D gt B lg 640 D G NG A J ground fault Setthe time delays long time tr 1 5 short time tsd 0 2s tg 0 2s ground fault Thresholds Time delays curve 124 OFF curve ON curve It OFF curve th Ir
66. olid 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 m This function carries out true rms measurements Instantaneous pickup li Micrologic control unit 5 0 P 6 0 P and 7 0 P Pickup li In x accuracy 10 2 3 4 6 8 10 12 15 OFF In circuit breaker rating m Circuit breakers have two types of instantaneous protection n adjustable instantaneous protection li self protection Depending on the circuit breaker the OFF position corresponds to the self protection pickup 22 Schneider 04443726AA 09 2009 Electric Overview of functions Current protection Neutral protection For the default values the setting ranges increment Th ree pole circuit breakers steps and setting accuracies see the technical Protection of the neutral is possible on a three pole circuit breaker by connecting an appendix external sensor Settings are made using the 4 buttons on the control unit Micrologic control unit 5 0 P 6 0 P and 7 0 Setting OFF N 2 N 1 6xN Type of neutral Description No neutral protection The distribution system does not require protection of the neutral conductor Half neutral protection The cross sectional area of the neutral conductor is half that of the phase conductors m The lo
67. on For the pickup and dropout thresholds and time delays Load shedding and reconnection depending on current see the technical appendix The pickup curve for load shedding and reconnection depending on current is parallel to the LT I t and Idmtl curves If a without long time protection rating plug is installed the load shedding reconnection function based on current cannot be activated m l t protection the neutral is taken into account m Idmtl the neutral is not taken into account This function does not trip the circuit breaker but can be used to set off an alarm linked to an 2 or M6C contact disconnection and reconnection of non priority loads The load shedding and reconnection function is determined by thresholds and time delays g tA 2 Long time protection E a curve 3 4 0 2 1 pickup threshold 2 pickup time delay 3 dropout threshold 4 dropout time delay The pickup threshold is always greater than or equal to the dropout threshold Load shedding and reconnection depending on power Load shedding and reconnection depending on power calculates the total active power on the three phases This function does not trip the circuit breaker but can be used to set off an alarm linked to an M2C or M6C contact disconnection and reconnection of non priority loads The load shedding and reconnection function is determined by thresholds and time delays gt DB119952 UY 0 1 pickup thre
68. oon as a given protection threshold is overrun the circuit breaker trips and the fault is recorded in the Trip history m The Protection setup menu under History maintenance and setup is used to enable or disable the Trip mode that is displayed in the protection setting screens On leaving the factory the protection functions are set to Alarm mode m The M2C 6 contacts menu under History maintenance and setup is used to link an M2C or M6C contact to an alarm M2C and M6C contacts may not be used together They require a 24 V external power supply m The COM communications module can be used to transmit alarms to a supervisor Schneider 31 Electric E60492A E60491C Overview of functions An alarm is issued if the Alarm or the Trip Alarm mode was set for the given protection function Caution The M2C and M6C contacts require an auxiliary power supply See the Power supply section in the technical appendix Wiring diagram for M2C contacts 1 Wiring diagram for M6C contacts 471 N o LO busal o one i 24 0V Com Wal Ul RAN 32 Schneider Electric DB120002 DB120003 DB120004 Optional M2C and M6C contacts m Available types of contacts M2C up to two contacts maximum S1 and S2 M6C up to six contacts maximum S1 to S6 Current protection m Voltage protection Ir U min Isd U max F li U unbal max E phase rotation
69. protection Setting of the reverse power protection rP max rPmax W p Setting of the minimum frequency protection F min Fmin Hz H Setting of the maximum frequency protection F max Fmax Hz Phase Setting of the phase rotation protection rotation Load shedding depending on current Access to load shedding and reconnection Load depending on current shedding Ben Load shedding depending on power Load pr Access to load shedding and reconnection shedding depending on power Schneider 19 Electric Overview of functions Current protection 121 long time protection For the default values the setting ranges increment The long time protection function protects cables against overloads This function is steps and setting accuracies see the technical based on true rms measurements appendix It is possible to select either I t long time protection Idmtl long time protection 12t long time protection Long time current setting Ir and standard tripping delay tr Micrologic control unit Accuracy 5 0 P 6 0 P and 7 0 P Current setting Ir In x 0 4 0 5 0 6 0 7 0 8 0 9 0 95 0 98 1 tripping betweeen 1 05 and 1 20 Ir other ranges or disable by changing rating plug Time setting 0 5 1 2 4 8 12 16 20 24 Time delay s trat1 5x Ir Oto 30 12 5 25 50 100 200 300 400 500 600 trat6xIr Oto 2096 07 1 2 4 8 12 16 20 24 trat7 2xIr Oto 20 0 7 02 0 69 1 38 2 7 5 5 8 3 11 13 8 16 6
70. protection functions A i Dropout i 1 Internal alarm m Non latching contact n Time delay Reset possible before contact delay 1 to 360 s end of delay iLatching i Reset possible contact only after T2 04443726AA 09 2009 Overview of functions The interrupted currents are indicated in terms of their peak values 04443726AA 09 2009 Event histories Trip history m The trip history is the means to display at any time the parameters measured during the lastten trips m For each trip the following parameters are recorded tripping cause trip threshold interrupted currents in amperes only if an external power supply is present for Ir Isd li lg or IAn trips date time hours minutes and seconds Alarm history m The alarm history is the means to display at any time the parameters measured during the last ten alarms m For each alarm the following parameters are recorded alarm cause alarm threshold date time hours minutes and seconds Operation counter This function is available only via the COM communications option m Micrologic P stores and displays the total number of operations incremented each time the circuit breaker opens since the initial installation of the circuit breaker stores and displays the total number of operations since the last reset Contact wear in
71. ries SAS 35 rue Joseph Monier CS 30323 F 92506 Rueil Malmaison Cedex RCS Nanterre 954 503 439 Capital social 896 313 776 www schneider electric com 04443726AA 07 As standards specifications and designs change from time to time please ask for confirmation of the information given in this publication amp S This document has been printed on ecological paper Design Schneider Electric Photos Schneider Electric Printed 09 2009 2009 Schneider Electric Tous droits r serv s
72. rnate or IEC see page 87 to determine the sign convention COM communications option setup Com access to the following sections setup Com parameter Remote settings Remote control Setting of parameters for the COM communications option address baud rate parity Authorisation of access to settings via the COM communications option Authorisation of access to the circuit breaker ON and OFF commands via the COM communications option Electric Schneider 17 E71712A Discovering Micrologic P Protection Press the A button to select the Protection menu ua move the cursor down the screen or decrement a value 4 move the cursor up the screen or increment a value select an option in a list confirm a selection or the value of a setting to the previous screen return to the main screen D D Current protection m indicates that the operator is in the Protection menu and returns 3 Current protection Current access to the following sections Voltage protection protection Oth Fine settings of the long time 12 short time and er A instantaneous protection functions protection Fine settings of the long time Idmtl ld mtl A short time and instantaneous protection functions Load shedding Load shedding P Fine settings of the E A m ground fault Micrologic 6 0 P m earth leakage Micrologic 7 0 P protection functions
73. rrent in the neutral m This function calculates the rms demand value of the current for the given phase 11 12 I3 or the neutral IN over a sliding time interval The time interval is the same as that for the calculation of the demand currents in the Metering menu Settings are made in the Metering setup menu Note IN max protection does not take into account the neutral protection setting N N 2 1 6xN OFF 04443726AA 09 2009 Schneider 25 Overview of functions For the pickup and dropout thresholds and time delays see the technical appendix If the voltage protection functions are activated and the voltage measurement inputs are still energised it is impossible to reset and close the circuit breaker Schneider Electric 26 DB119946 DB119998 Voltage protection Minimum voltage maximum voltage voltage unbalance Operating principle protection tripped protection tripped by a minimum value by a maximum value 1 3 3 1 2 4 4 2 gt Umin 0 d gt DB119997 U max U unbal pickup threshold pickup time delay dropout threshold dropout time delay Pom For protection tripped by a minimum or maximum value it is possible to set a pickup threshold 1 that activates an alarm a contact and or tripping a pickup time delay 2 that steps in when the pickup threshold 1 is reached a dropout threshold 3 corresponding
74. s Ts 20 0 96 Dropout time delay 10 sto 360s 10s 18 20 Yo 0 Yo Pickup threshold 20Ato 1200A 120A 1A 15 Yo Dropout threshold 20 Ato pickup threshold pickup threshold 1A 1596 Pickup time delay 1sto10s 10s 0 1s 20 Yo 0 Yo Dropout time delay 1510105 15 0 15 20 0 96 Pickup threshold 0 5Ato 30A 30A 0 1A 20 Yo 0 Yo Dropout threshold 0 5Ato pickup threshold pickup threshold 0 1A 20 Yo 0 Yo Pickup time delay 1sto 10s 10s 0 1s 20 Yo 0 Yo Dropout time delay 1sto10s 16 0 15 20 0 Pickup threshold 0 2 In to In In 1A 6 6 Dropout threshold 0 2 In to pickup threshold pickup threshold 1A 6 6 Pickup time delay 15sto 1500s 1500s Ts 20 Yo 0 Yo Dropout time delay 15sto 3000s 15s 15 20 Yo 0 Yo Voltage protection Type Range Factory setting Step Accuracy Pickup threshold 100 V to U max pickup threshold 100V 5V 5 Yo 0 Yo Dropout threshold pickup threshold to U max pickup threshold 5V 5 96 0 pickup threshold Pickup time delay 1 2sto5s 5s 0 1s 0 96 20 96 Dropout time delay 1 2sto36s 1 25 0 15 0 20 Maximum voltage Umax Pickup threshold U min pickup threshold to 1200 V 725V 5V 0 Yo 5 Yo Dropout threshold 100 V to pickup threshold pickup threshold 5V 0 Yo 5 Pickup time delay 1 2sto5s 5s 0 1s 0 96 20 96 Dropout time delay 1 2sto36s 1 25 0 15 0 Yo 20 Yo Voltage unbalance U unbal Pickup threshold 2 96 to 30 96 30 196 20 Yo 0 Yo Dropout threshold 2 to p
75. setting is automatically erased 40 Scbneider Electric E71608A E71610B Setting up the Micrologic control unit Prior to setting up the protection functions or carrying out measurements the following operations are required selection of the display language m entry ofthe date and time m entry of the circuit breaker type m entry the power sign selection of the transformation ratio between the primary and secondary windings if an auxiliary voltage transformer is installed m entry ofthe rated frequency Language English US English UK Espanol Francais Select Select the display language 71938 Language English UK Espanol Fran ais Italiano Confirm To return to English 1 Return to the main screen by pressing any of the three buttons N N D or press the button followed by any of the three buttons 2 Select the History maintenance and setup menu by pressing 3 Select the Micrologic setup menu by moving the cursor up on the first menu Move the cursor down on the third menu and confirm by pressing Set the date and time m Enter the date and time for time stamping purposes in the trip and alarm histories Date 01 01 2000 Time 18 30 03 E71611B Date 01 2000 Time 18 30 03 Select the date Enter the day m The resolution of the time setting is 20 ms E71612B 4 Select the Language menu
76. setup the COM communications option Com m authorise remote setting of the Micrologic control unit setup m authorise remote control of the circuit breaker on View and set up the communications option parameter As soon as the Digipact or ModBus communications 5 Modbus 5 Modbus E Modbus igi u unicati option is connected the control unit recognises it and Com Com Com displays the type of module on the graphic screen Address Address Address Automatic time updates are possible only with the Baud rate Baud rate Baud rate 9600 Parity None 9600 Parity None 9600 Parity None 3 2 o un Select an existing Adjust Confirm parameter Adjust all the other parameters for the communications option in the same manner DIGIPACT MODBUS Address 1 255 1 47 Baud rate 9 600 bauds 19 200 bauds Parity Even None ann Authorise remote setup of Micrologic a Remote Remote Remote Remote settings settings settings settings Access Access Access permit permit Yes permit Yes The access code is a password that must be provided by the supervisor prior to accessing the Micrologic settings Access code 0000 BB ag e Select existing setting Choose Confirm 46 Schneider 04443726AA 09 2009 Electric Setup If the operator does not enter a specific access code the default access code is 0000 and is requested by the supervisor Select the command
77. shold 2 pickup time delay 3 dropout threshold 4 dropout time delay The pickup threshold is always greater than or equal to the dropout threshold 28 Schneider 04443726AA 09 2009 Overview of functions For the setting ranges and measurement accuracies see the technical appendix To display the phase to neutral voltages select the 4o ACT option in System type in the Metering setup menu under History maintenance and setup 04443726AA 09 2009 DB119998 Measurements Current and voltage Instantaneous current Micrologic P control units offer two non exclusive measurement possibilities m On the bargraph display on the main screen The instantaneous current of the most heavily loaded phase is automatically displayed in amperes for phases 1 2 3 and the neutral depending on the neutral protection settings The bargraph indicates the percent load of the three phases m In the inst section of the instantaneous currents display in amperes of the instantaneous currents rms on phases 11 I2 and I3 and the neutral current IN the ground fault current lg Micrologic 6 0 P the arth leakage current lAn Micrologic 7 0 P the maximum instantaneous currents are displayed and stored in memory the stored maximums can be reset at any time Demand current m Display of the demand current on phases 11 12 and the neutral IN depending on the type of distribution system m Select
78. t that tripped the circuit breaker m The LEDs are located in the upper part of the front panel red Ir Isd li Ig I n and Ap LEDs m When activated a LED remains ON until it is locally reset m IrLED m Isd li LED Signals tripping following overrun of the long time Micrologic 5 0 P test reset current setting Ir m 19 lAn LED E60338B 5 0P Ir Ig Ap li l n test reset Signals tripping following overrun of the short time pickup Isd or the instantaneous pickup li m ApLED Micrologic 5 0 P 7 1 88 li An Ir o test reset E60340B Micrologic 5 0 P Ir Isd Ig li lAn test reset Signals tripping following overrun of the ground fault pickup 10 or the earth leakage pickup lAn Signals tripping due to m Self protection function O temperature ASIC power supply instantaneous pickup for circuit breaker self protection m Protection functions current unbalance unbal maximum current 11 max I2 max max IN max voltage unbalance U unbal O maximum voltage U max O minimum voltage U min reverse power max O maximum frequency F max O minimum frequency F min m LEDs on buttons to access the menus The activated LED indicates the menu for which the screen is displayed o Metering History maintenance and setup Protection
79. the end of the time Select Choose between Confirm interval m thermal m block interval m sync to comms Power Power Power demand demand demand Calculation Calculation Calculation method method method block block block interval interval interval Window type Window type Window type Interval Interval Interval 15 min 15 min 15 min Select Choose between fixed or Confirm sliding 44 Schneider Electric 04443726AA 09 2009 Setup Select the command Metering setup Sign convention See page 87 for the description of power factor sign conventions 04443726AA 09 2009 E89222C Setting up the metering functions E89225B Power demand Calculation method block interval Window type fixed Interval Select E89223C Power demand Calculation method block interval Window type fixed Interval Adjust E98320A Set up the power factor calculation Sign convention IEEE Select E89226B Sign convention IEEE alt Choose between IEEE IEEE alternate and IEC E89227B Power demand Calculation method block interval Window type fixed Interval Confirm Sign convention IEEE alt Confirm Scbneider Electric 45 Setup Setting up the COM communications option Select the command When a COM communications option is used it is necessary to m
80. tive apparent energy 30 63 Active reactive apparent power 30 AD power supply module 77 Address 36 Alarm 31 Alarm history 33 67 B Baud rate 46 Buttons 5 6 Circuit breaker selection 41 COM communication option 36 46 81 Contact 32 38 Contact wear 68 Control unit identification 4 Control unit battery 5 69 Current demand calculation 29 43 D Date and time 40 Demand current 29 57 Demand power 30 61 Digipact 46 Dropout 25 26 27 28 31 DT 21 49 E Earth leakage protection 24 Earth leakage protection tripping delay A 24 EIT 21 49 F F max 30 52 F min 30 52 Fault 66 Frequency 30 64 Full neutral protection 23 51 Graphic display 5 Ground fault Earth leakage fault protection test 70 Ground fault protection 24 H Half neutral protection 23 51 History setup and maintenance menu 13 16 HVF 21 49 E 50 Alarm 25 52 avg 25 max 25 52 unbal 25 52 lAn pickup 24 Pt 20 48 Idmtl 21 49 Ig pickup 24 li pickup 22 Infrared link 5 Instantaneous current 29 56 Instantaneous protection 22 Ir current setting 20 21 Isd pickup 22 88 Schneider 04443726AA 09 2009 Index 04443726AA 09 2009 L Language Latching Lead seal for cover LEDs Load shedding reconnection Long time I2t protection Long time Idmtl protection Long time plug M M2C M6C Main screen Maximum demand current Maximum demand power Maximum instantaneous current Metering menu ModBus N Negatively increme
81. tive energy E P in kWh reactive energy kvarh m Energy supplied Energy out negatively incremented active energy E P in kWh O reactive energy E Q in kvarh m Energy values can be reset Note m the Energy in and Energy out values are incremented according to the power sign set in the Metering setup menu under History maintenance and setup m as standard the total calculated energy values are absolute total values They represent the sum of the energy in and out values t2 EQ out m option access exclusively via the COM communications option energy be calculated algebraically EQ XEQin XEQout These values are called signed energies Frequency The frequency of the distribution system is displayed in Hz 04443726AA 09 2009 DB120000 DB120001 Overview of functions For information on the communications option and the portable test kit see the respective user guides Different pickup and dropout thresholds A m An alarm may be viewed using the Alarm history menu the COM communications option the portable test kit m The commands in the Protection menu are used to attribute a specific operating mode to each of the protection functions D OFF protection disabled D Alarm the function issues an alarm but does not trip the circuit breaker Trip
82. to deactivation of the alarm and or contact a dropout time delay 4 that steps in when the dropout threshold 3 is reached For protection tripped by a minimum value the dropout threshold is always greater than or equal to the pickup threshold m For protection tripped by a maximum value the dropout threshold is always less than or equal to the pickup threshold m f both the minimum and maximum protection functions are activated at the same time the minimum threshold is automatically limited to the value of the maximum and vice versa 0000 w Minimum voltage protection U min m This function calculates the minimum rms value of the three phase to phase voltages m Protection is activated when at least one of the three phase to phase voltages U12 U23 U31 is below the threshold set by the user m This protection function does not detect phase failure Maximum voltage protection U max m This function calculates the maximum rms value of the three phase to phase voltages Protection is activated when the three phase to phase voltages 012 023 031 are simultaneously above the threshold set by the user Voltage unbalance protection U unbal This protection is activated by an adjustable level of unbalance between the rms values of the three phase to phase voltages This function calculates the rms value of the unbalance between the three phase to phase voltages u m From U avg is the average value of the rms voltages o
83. umber for that phase is presented in a square The current in the neutral is displayed if the neutral CT is set as internal or external see Ineutral A settings in the Current protection menu Metering History maintenance and setup and Protection menus m Metering menu pn E60102A press the 3 ors utton to return to the main the I 0 button to return to the mai screen B press the button to return to the previous Screen m whatever the screen displayed if no further action is taken the system returns to the main screen after a few minutes m the LED goes OFF on exiting the menu 04443726AA 09 2009 Discovering Micrologic P E71711A Main menus m History maintenance and setup menu Event history Contacts M2C M6C Micrologic setup Metering setup Com setup Protection menu p E71712A E71657A 04443726AA 09 2009 Current protection Voltage protection Other protection Load shedding Load shedding m Saving settings Do you want to save new settings press the or button to return to the main screen n O press the button to return to the previous Screen whatever the screen displayed if no further action is taken the system returns to the main screen after a few minutes the LED goes OFF on exiting the menu press the or button to return to the main screen n press the button to return to the pre
84. vious screen whatever the screen displayed if no further action is taken the system returns to the main screen after a few minutes the LED goes OFF on exiting the menu When a setting is made in any of the three menus the Screen used to save the modification s may be accessed by pressing one ofthe three buttons 1 O select yes to save the modifications select no to cancel and maintain the previous settings o this screen remains displayed until yes or no are selected Schneider 13 Electric E60105A E60391A Discovering Micrologic P 14 Schneider Electric Metering Press the NG button to select the Metering menu ga move the cursor down the screen or decrement a value o move the cursor the screen or increment a value select an option in a list confirm a selection or the value of a setting indicates that the operator is in the Metering menu and returns to the previous screen return to the main screen Current measurements A Instant 11 12 13 IN Max Demand Max Voltage measurements U V Instant Average 3 Unbal 3 Phase rotation access to the following sections 11 12 13 IN currents depending on the type of system Storing and reset of the maximum instantaneous currents Demand current on the phases 11 12
85. ween the upstream and downstream circuit breakers m Micrologic 5 0A 6 0A 7 0A m Micrologic 5 0 P 6 0 P 7 0 P m Micrologic 5 0 H 6 0 H 7 0 H An interface is available for connection to previous generations of trip units Wiring m Maximum impedance 2 7 y 300 metres m Capacity of connectors 0 4 to 2 5 mm m Wires single or multicore m Maximum length 3000 metres m Limits to device interconnection delays are set to zero whatever the position of the the common ZSI OUT Z1 and the output ZSI OUT Z2 can be connected to a adjustment dial maximum of ten inputs a maximum of 100 devices may be connected to the common ZSI IN Z3 and to Terminals Z1 to Z5 correspond to the identical an input ZSI IN CR Z4 or GF Z5 E indications on the circuit breaker terminal blocks Fou UN n circuit breaker 220 tsd 0 3 230 240 250 76 point H 2 EO O me 5 tsd 0 2 240 Z5 J Z10 downstream Z10 720 circuit breaker 720 230 230 74 16 ESO Test The portable test kit may be used to check the wiring and operation of the zone selective interlocking between a number of circuit breakers Schneider 04443726AA 09 2009 Electric Technical appendix Caution Itis advised to use the AD power supply module rather than an off the shelf 24 V power supply to ensure Class Il insulation on the front panel of the Micrologic P control unit The power supply must have the following
86. x earth leakage 0to 30A 1 5 12 13 0 05 x In to 20 x In 11 596 IN 0 05 x In to 20 x In 21 5 96 max I2 max max 0 05 x In to 20 x In 1 5 96 IN max 0 05 x In to 20 x In 11 5 96 U12 170 to 1150 V 20 5 Yo U23 170to 1150 V 20 5 Yo U31 170 to 1150 V 20 5 96 VIN 100 to 1150 V 20 5 Yo V2N 100 to 1150 V 20 5 96 V3N 100 to 1150 V 20 5 Yo U avg 170 to 1150V 0 5 U unbal Oto 100 Yo 0 5 P 0 015 to 184 MW 2 Q 0 015 to 184 Mvar 42 S 0 015 to 184 MVA 2 Yo PF 1t0 1 2 P 0 015 to 184 MW 42 Q 0 015 to 184 Mvar 42 S 0 015 to 184 MVA 42 P max 0 015 to 184 MW 42 Qmax 0 015 to 184 Mvar 42 S max 0 015 to 184 MVA 42 E P 10 GWh to 10 GWh 42 E Q 10 Gvarh to 1079 Gvarh 2 Yo E S 101 GVAh to 10 GVAh 42 E P 101 GWh to 10 GWh 42 101 Gvarh to 1079 Gvarh 2 Yo E P 101 GWh to 10 GWh t2 Yo 101 Gvarh to 10 Gvarh 2 Yo pa 45 Hz to 440 Hz X0 1 96 04443726AA 09 2009 Technical appendix Power factor sign conventions Flow of active and reactive power DB120011 P from load P to load Q to load Q to load P from load P to load Q from load Q from load DB119979 DB119980 leading lagging pf lagging pf leading IEEE Alt DB119981 Q B pf leading lagging P lagging pf leading 04443726AA 09 2009 Scbneider 87 Index A Activation 25 26 27 28 31 Active reac

Micrologic - Schneider Electric

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