POWER REGENERATIVE CONVERTER
Contents
1. is 23 9 1 Selection of peripheral nennen enne 25 9 2 Model Select ni it ins 25 Operation guide Incorrect operation can cause the inverter to operate improperly its life to be reduced considerably and in the worst case the inverter to be damaged Please handle the inverter properly in accordance with the information in each section as well as the precautions and instructions of this manual O Power supply Use the power supply within the permissible power supply specifications of the inverter Refer to page 20 O Non fuse breaker NFB Refer to page 7 Install NFB to supply power to the inverter and power regenerative converter together O Reactors Refer to page 7 9 11 If any power cooperation is necessary be sure to install the AC reactor on the power supply side Since improper connecting method prevents the capacity from being fully shown or causes the power regenerative converter to be broken take care for the installation position O MT RCL Refer to page 6 For installation of MT RCL refer to P6 When is installed it is surely necessary to install the AC reactor MT RCL Connect it referring to the DCL O Installation Refer to page 4 Since the ambient temperature largely influences the service life use it at the position of the lo2. Improper installation environment e Cooling fan smoothing capacitor relay Check and change if necessary e Cooling system fault 3 Megger test procedure Before the megger test of the power system disconnect the cable which is connected to the power regenerative converter in order to prevent the test voltage from being applied e Take the megger test of the power regenerative converter itself keeping the terminal block of the main circuit short circuited with the procedure in Fig 4 Here don t take the megger test of the control circuit Note 1 When taking the continuity test of the control circuit use the tester in the high resistance range but not the megger buzzer Short circuit Inverter da S the connection cable of the A oie N dot lined connection 9 ie p cable Fig 4 Megger test procedure 14 Daily and Periodic Inspection Area of 7 Inspection Inspec tio Description Item n 5 Check ambient Surrounding temperature humidity environment dust dirt etc General Refer to 4 s et Ambient temperature 109C to 409C non freezing Thermometer Ambient humidity hygrometer 90 or less recorder non condensing Check for unusual 5 Overall unit A Visual and auditory checks No fault vibration and noise Power supply Check that main circuit Measure voltage across 323V to 506V Tester digital
3. MITSUBISHI TRANSISTORIZED INVERTER MT RC POWER REGENERATIVE CONVERTER INSTRUCTION MANUAL IB 07407 B Thank you for employing the power regenerative converter MT RC The equipment has been developed to improve the brake capacities of Mitsubishi Transistor Inverters FR A700 FR F700 FR A540L FR F540L MT A200 MT A100 MT A200E MT A100E MT V200 Series Before use be sure to read through this instruction manual for proper operation Don t use the converter on any other inverter except described above since they can not be fit to each other CONTENTS Operation pner 1 T Structure u nuvi PEREEBEFEHEESERFERELNETLENELESEFFRELSTRLENCLESEFERELSTILENSEEFELEREFSTTLENTEEEEEEFEFSTRLEILELFELEPTERE 2 1 Structure 1 em eie e RR MES Pep a Ne ERR dis 2 2 Unpacking ins pectlon ee Aa ica 3 NES 4 3 1 TtansSportation s Rr ad 4 3 2 Installation site ci iii are a dd oki dd 4 3 3 Installation direction and space 4444440onsnnnnennnnnnnnennnnnnnennnnnnennnnennnnnennnennnnennnnnsnannnen 4 3 4 Removal installation of heat radiation fin section 5 AVI A A AAA A aa lade d xa 6 4 1 Terminal connection rr 6 422 NN 8 4 3 Co trolCircuit 10 454 Gonnection example i ti
4. voltage voltage is normal inverter terminals R2 S2 T2 50Hz 60Hz multimeter 1 Check with megger across main circuit terminals and ground terminal 2 Check for loose General screws and bolts 3 Check for overheat ing of each part 4 Clean 1 Check conductors for Conductors distortion cables 2 Check cable sheaths for breakage Main circuit Check resistance across IGBT module terminals 1 Check for liquid leakage Smoothing 2 Check for safety valve capacitor projection and bulge 3 Measure electrostatic capacity 1 Check for chatter during operation Relay 2 Check for rough surface on contacts 1 Check for crack in resistor insulation Resistor 2 Check for open cable 1 Perform sequence protective operation test to make sure of no fault in protective and display circuits 1 Check for unusual vibration and noise Cooling fan 2 Check for loose connection 1 Check if LED lamp is Display 2 Clean Check that reading 15 normal 1 Disconnect all cables from inverter and measure across terminals R2 S2 T2 and ground terminal with megger 2 Re tighten 3 Visual check 1 2 Visual check Disconnect cables from inverter and measure across terminals R2 S2 2 gt and P N with tester range of 10 1 2 Visual check 3 Measure with capacity meter 1 Auditory check 2 Visual check 1 Visual check Cement res
5. 2 Do not apply a large voltage to the contact terminals RES of the control circuit 3 Do not apply a voltage directly to the alarm output signal terminals A B C Always apply a voltage to these terminals via a relay coil lamp etc 4 Since the input signals to the control circuit are on a low revel use two parallel micro signal contacts or a twin contact for contact inputs to prevent a contact fault 4 2 Main circuit 1 Connection of power supply and inverter Power regenerative converter MT RC TN Ground D Note 1 Install the electromagnetic contactor on the inverter side alone If the power supply side of the power regenerative converter is opened during power regeneration the power Non fuse breaker regenerative converter will sometimes be T NFB turned OFF due to overcurrent 2 Connection of power supply of control circuit to another power supply If MC of the power supply is turned OFF when the protective circuit is activated the power supply of the control circuit will be turned OFF to make it impossible to hold the error signal relay and error indication If it is necessary to hold them proceed with the following procedure to connect the power supply of the control circuit to another power supply or the primary side of MC MT RCL i Inverter 3 Connection of AC reactor to the power side Don t install the power cooperation type AC reactor MT BAL on the power supply
6. OL Jepun puno 55219 jeloeds 55215 jeloeds 07 ET GE C fe 30N y sjon EA ta S SEE m ee Ela yosoy Z FN 0 2 gt HA eso Hon 19594 s ajo 85 a Lii p _ t ag et AYCOG I i N EJ tp puel na O LIN JeuyoAuo2 Ao aud E Lad _ o Wud T Alea A A Ls t T JeyeAu rk 1 n EEE 24 EN A097 1 910N A ddns fog uo os pue jueuudinbe JO uoneorddy bu OWM LIN pue JO UONBUIUO 12 5 Operation 5 1 Inspection before operation After installation and wiring check the following before turning ON the power supply 1 Is any error present in the wiring Is it properly wired particularly on the terminals P and N of the main circuit 2 Is any wire chip left inside after the cable connecting work Is it also short circuited with wire or similar 3 Is it skipped to fasten any terminal screw or it is loose 4 Check the phase order of the power supply and verify that any wrong connection is not present
7. is positioned outside the panel Moreover the section installed in the panel and the cooling section are not completely enclosed Accordingly don t use it in the poor environments of water drip oil mist dust corrosive gas or similar 4 Wiring 4 1 Terminal connection diagram The basic connection is shown Three phase Y AC power Xx x i tm Inverter R L1 U SIL2 bm OT L3 wo y R1 L11 u S1 L21 OG P N 9 P R2 RES STF 932482 Reset signal SE MT RC a 4 lo 51 991 Ready signal Don t use any other converter except MT A MT V FR A500L FR F500L and FR A700 FR F700 Series CAUTION When using either the FR A700 series or FR F700 series with the MT RC install a magnetic contactor MC at the input side of the inverter and power on the inverter 1s or more after powering on MT RC When power is supplied to the inverter before the MT RC the inverter and the MT RC wr RC power supply MCCB may be damaged or the MCCB may trip or be damaged Inverter input power supply MC ON ON 1 1 1 1 15 or more 1 1 Cautionary items for wiring 1 Properly connect the terminals P and N to the terminals P and N of the inverter If they are improperly connected the power regenerative converter will be b
8. motor rating Brake torque 96 for continuous rating with the rated torque of the motor regarded as 100 eene m mo Inverter model 75K 110K 110K 160K 160K 160K 220K 220K 220K 280K 280K mem MT RC H160K 5 MT RC H220K MT RC H280K 25
9. on the power terminals R2 S2 and T2 and the phase power terminal R S and T X Set the parameters of the inverter to make the power regeneration possible e Set 1 at Pr 30 Regenerative operation is selected e Set 100 at Pr 70 Set the operation rate ED Be sure to set 100 when MT RC is used e Set the motor rating at Pr 3 and 19 Excessive excitation is prevented during regeneration 5 2 Operation example Case of load with power running during acceleration and constant speed and regeneration during deceleration Preparation e Turn OFF the start signal of the inverter e Zero the signal of the frequency command of the inverter e Power supply ON Turn ON NFB and MC e LED lamp on the unit is lit e The cooling fan starts running The ready signal is turned ON l e Start Turn ON the operation signal of the inverter y e Acceleration Gradually increase the The revolution speed of the motor is increased Constant speed frequency command of the to the constant speed inverter to the max speed y Deceleration Turn OFF the operation signal The revolution of the motor slows down and of the inverter stops The regenerative power LED indicates the regenerative power in Check point Since the regenerative operation may not be Does the regenerative power LED indicate any proper value proper check the wiring and the constant setting value for the inverter M 9 e Does the r
10. referring to the following inspection content 7 1 Indication and inspection for abnormal stop The display unit has the following indications in order to inform the causes of abnormal operations LED display Protective function Check point Overcurrent shut off Regenerative overvoltage shut off Overload shut off Transistor thermal Undervoltage protection Ground fault overcurrent protection on the power supply side Cooling fin overheat protection Cooling fan stop Excessive regenerative current Power failure Excessive DC voltage Excessive regenerative power Power failure Excessive regenerative current Current flows beyond the specified value for a long time Power supply voltage drop Ground fault on the power supply side Overheat of cooling fin Temperature rise in the unit Overcurrent of cooling fan Does any load rapidly vary 15 any rapid slowdown operation applied Does any power failure occur during regenerative operation 15 any phase of power supply in proper order Does any load rapidly vary 15 any rapid slowdown operation applied Does any power failure occur during regenerative operation Does any regenerative overload state continue long during operation 15 there any cause to drop the power supply voltage Large capacity motor start etc 15 any ground fault present on the equipment or cable of power supply side 15 cooling
11. side of MT RCL When MT BAL 15 installed apply the following connection NFB MT BAL Inverter NFB MT BAL Inverter h 6 o gr an 91 53 ra Proper connection 0 Improper connection 4 Connection of power factor improving DC reactor provided on the inverter Connection to the terminals P thru P1 of the inverter For connection be sure to use the DC reactor which is provided on the inverter Connect the terminals P and N of the power regenerative converter to the terminals P and N of the inverter and the terminals U and X of DCL to the terminals P1 and P without mistake Refer to the following figure Proper connection Improper connection 4 3 Control circuit 1 Input signal 2 Output signal Abnormal output Ready output 1C contact output Open collector output O Cautionary items for connection to sequencer If the control power voltage in the inverter amp Countermeasure becomes higher than the external power 1 Insert the diode which prevents the sneak voltage of the sequencer when the sequencer current output unit open collector output and MT RC 2 Use the output unit of all point independent are connected the dot lined current will flow type Example AY40A etc to give the command signal to the inverter 3 The external power supply becomes higher even though the transistor of the sequencer 15 than the control power supply of the power not turned ON regen
12. Ground terminal When cooling fin is positioned outside the panel 3 Hole for hanger LY i x i REM A screw li 7 E Ruction rem Fi M20 2 screw A 0 Ground terminal 24 9 1 Selection of peripheral equipment 1 Referring to Instruction Manual for Inverter select the non fuse breaker NFB and electromagnetic contactor MC depending on the capacities of the motor and inverter 2 On the connection cables to the power regenerative converter select the cable size mm which is larger than specified in the following table Model Applicable motor capacity Cable size MT RC KW R2 S2 T2 R SIT PIN meme __ 2 fe emm e ar m Dee ee urne fe ef am MO AI AI MT RC H220K enne m om EE MT RC H280K 2x125 2x150 mm 5 m The table is based on the characteristics of the standard motors of Mitsubishi Electric Corp 3 Select MT BSL and MT BAL according to the capacity of the inverter 4 Since MT RCL is attached to MT RC be sure to use the attached one 9 2 Model selection According to the motor capacity and brake torque strength select the model as shown in the following table Don t use MT RC whose capacity is larger than combined in the following table Even if the capacity of MT RC is increased the continuous brake torque will not exceed 100 of the
13. bient temperature Since the service life of the product is largely influenced by the ambient temperature verify that the ambient temperature does not exceed the tolerable value 50 C after installation in the position shown in the right Measurement position 3 4 Removal installation of heat radiation fin section If any regenerative state continues long in the winding operation elevation operation and others in which a minus torque is applied for a long time the power regenerative converter will generate much heat If it is stored in the panel during such operation the temperature in the panel will excessively rise Therefore it is recommended to install the power regenerative converter exposing the heat radiation section outside as shown in Fig 2 For this countermeasure the installation leg can be replaced on the power regenerative converter MT RC Preparation e Produce the holes on the storage panel For the machining hole dimensions refer to P23 and P24 e Reposition the installation leg at two upper and lower places Refer to Fig 3 E Panel inside Installation leg Storage panel Panel outside Position of installation leg at shipment from factory Power regenerative converter Installation leg Fig 2 Method to install the heat radiation section Fig 3 Reposition of installation leg outside the panel Note The cooling fan is provided in the cooling section which
14. connected to the terminals R2 S2 and T2 of the power regenerative converter Terminals are connected to the terminals P and N of the inverter Terminals are connected to the terminals R2 S2 and T2 of the AC reactor Terminals are connected to the same input power of the inverter Connected to the power phase detection terminals R and S with short bar To hold the error display disconnect the short bars and input the power supply from outside 2 T2 R 5 T R1 S1 Circuit between terminals STF and SD is normally shorted The input terminal is used to reset the protected state when the protective circuit is activated After shorting RES to SD circuit 0 1 second or more open it and it will be ready for resetting Output signal to indicate that the protective circuit is activated B to Closed Open Normal time Abnormal time to C Open A to C Closed Output signal indicates that the power regenerative converter is ready for operation L operation when readiness is completed 9 Dimensional outline drawin DIAN MT RC H75K Au When cooling fin is positioned outside the panel LIE al 139 m IE AGH Air exhaust 31 3 400 E Lis ki la 100 Hole for hanger b b 2410 W 1 EE F Mounting 7 Fhal NT n A Square hole ea Y I iu 1 Accessory co
15. dad lie ea txt 11 5 OPO RAEI mee naa a Aar ena rran aa anaana ea arna enaar oikeni ninae 13 5 1 before operation 2 a te eie be ed 13 5 2 Operation example Case of load with power running during acceleration and constant speed and regeneration during decelerati0N o oocconnncccnoniciccnnocnccnnnonnnnnnnoncnn nano cnn r eene 13 6 Precautions for maintenance xxnnrnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 14 6 1 Precautions for maintenance and inspection 14 0 2 CNECKIEMS ra een e ee desk e ae me t A Ge he Pe Aad anes 14 6 3 Checking the inverter and converter modules sese enne 16 6 4 Replacement of nena nn enne 17 T Troubleshooting marcara aaa 18 7 1 Indication and inspection for abnormal Stop 18 152 Protective functions e at c ee RES 19 8 Specifications 20 8 1 Standard 20 9 2 Block diagram 21 8 3 Terminal specifications 22 9 Dimensional outline
16. egenerative power indication exceed 100 If this state continues long it may trip since the capacity is exceeded The regenerative power indicator indication includes an error of approx 5 Referring to Item Protective function inspect the cause e Is the trouble indicator lit 6 Precautions for maintenance The transistorized inverter is a static unit mainly consisting of semiconductor devices Daily inspection must be performed to prevent any fault from occurring due to adverse influence by the operating environment such as temperature humidity dust dirt and vibration changes in the parts with time service life and other factors 6 1 Precautions for maintenance and inspection Even after the power is shut down high voltage is charged on the inner electrolytic capacitor for a while For the inspection turn OFF the power supply and wait until the charge lamp on the control board goes out Using the tester or similar verify that DC voltage across the terminals P and N is OV 6 2 Check items 1 Daily inspections 2 Periodic inspection Check the following Check the areas inaccessible during operation e Motor operation fault ie inspection For periodic e Unusual vibration and noise Unusual overheating and discoloration Screws and bolts Cleaning of filter in the vent section of storage e Conductors and insulating materials Check for panel corrosion and damage
17. erative converter 1 Diode for countermeasure DC12 24V ak mens Control power Photo 24V coupler 4 4 Connection example 1 Combination of brake motor and power regenerative converter MT RC Application for elevation equipment and so on e In combination with the brake motor it is also applicable for the elevator equipment t is used in combination with MT RC type power regenerative converter e Since it sometimes slips down on the elevation equipment at the start time it is necessary to delay the release timing of the brake Against such a case the brake 15 released with the frequency arrival signal FU Forward turn Reverse turn Output frequency ee Setting value in Pr 42 Brake release Note 1 The AC reactor MT BAL for power cooperation is necessary in the following cases The ratio between power capacity and inverter capacity 15 10 times or more The rectifier load is present in the same power supply The phase adavance capacitor is present in the same power supply Note 2 The terminals STF and SD of the power generative converter MT RC is normally short circuited Note 3 LS indicates the upper lower limit switch of the machine Note 4 MC1X is the auxiliary contact of the contactor MC1 Note 5 Be sure to separate the SD terminals of the inverter unit and power regenerative converter from each other wyo OL Jepun
18. es are almost the same the modules are without fault On the model in which plural modules are connected in parallel it is necessary to disconnect the connection bus cable in order to isolate the defective module Tester Polarity Tester Polarity 280 AN Discontinuity Continuity TRRP TRRN Continuity Discontinuity Discontinuity Continuity TRSP TRSN Continuity Discontinuity Discontinuity Continuity TRTP Continuity Discontinuity IGBT module TRRN TRSN TRIN N Module device numbers and terminals to be checked 6 4 Replacement of parts The inverter consists of many electronic parts such as semiconductor devices The following parts may deteriorate with age because of their structures or physical characteristics leading to reduced performance or failure of the inverter For preventive maintenance the parts must be changed periodically 1 Cooling fan The cooling fan cools heat generating parts such as the main circuit semiconductor devices The life of the cooling fan bearing is usually 10 000 to 35 000 hours Hence the cooling fan must be changed every 2 to 3 years if the inverter is run continuously When unusual noise and or vibration is noticed during inspection the cooling fan must be changed immediately 2 Smoothing capacitors A large capacity aluminum electrolytic capacitor is used for smoothing the DC in the main circuit and an aluminum electrolytic capacitor is also used for stabilizing the co
19. fin troubled Is fin or filter clogged Inspect cooling fan Lengthen the slowdown time Check the phase order and correct it if improper Lengthen the slowdown time Reduce the load Change the operation content to shorten the overload time Inspect the power supply capacity and system Isolate the ground fault place Inspect and recover cooling fin Clean fin filter and other cooling air path Inspect and recover cooling fin Replace cooling fan Note If any above trouble is indicated the power regenerative converter will stop running Accordingly the protective function overcurrent or overvoltage will be activated also on the inverter side To restart the operation isolate and remove the cause and reset the system 18 7 2 Protective functions Though the following protective functions are provided for the power regenerative converter to protect itself it may be activated if any trouble occurs in the power regenerative converter Overcurrent shut off E OC2 If any regenerative current of the converter unit exceeds approx 300 of the rated current the protective circuit will be activated to stop output of the power regenerative converter Arm short circuit E ATT The arm short circuit occurs across P and of the transistor Output E OC2 of the power regenerative converter is stopped Alternate display Regenerative overvoltage If any DC voltage of the main circuit in the power re
20. generative shut off converter exceeds 138 of the rated voltage the protective circuit will be activated to stop output of the power regenerative converter t is sometimes activated by the surge voltage which occurs in the power supply system Overload shut off If any current exceeds 100 of the rated output current but the overcurrent shut off OC is not activated the electronic thermal relay will be activated due to the reverse time properly in order to protect the main circuit transistor thus stopping output of the power regenerative converter Overload suppression 150 60 seconds Undervoltage protection 3 If any power supply voltage becomes approx less output of the power regenerative converter will be stopped Ground fault overcurrent If any ground fault overcurrent flows because of the ground fault on protection on the power the power supply side of the power regenerative converter output of supply side the power regenerative converter will be stopped CPU error If the integrated CPU does not complete its operation within the specified time it will be self diagnosed as an error thus stopping output of the power regenerative converter Cooling fin overheat If the cooling fin is overheated since the cooling fin is troubled to stop protection or the fin is clogged the thermosensor will be activated to stop output of the power regenerative converter It will be also activated if the air temperature in
21. h humidity Place with oil mist cotton or dust suspended Place splashed with water oil or grinding liquid Place with falling iron powder Place with corrosive gas Place with inflammable gas Place with vibration applied 2 When installing the power regenerative converter in the fully enclosed panel check whether the cooling system and panel dimensions are sufficiently considered against heating of the converter itself or not In addition to the power regenerative converter it is the important check point the ambient temperature of the inverter installed in the same panel is within the tolerance 3 For continuous regenerative operation with the converter installed in the panel apply the method of Item 3 4 3 3 Installation direction and space 1 Securely install the converter on the play free installation surface with the bolts to be vertical the letters of the model MT RC on the nameplate is visible from the front 2 Since the power regenerative converter generates heat assure the sufficient surrounding space to prevent the heat from being accumulated 3 Don t arrange the power regenerative converter and inverter to vertical in line Otherwise the warmed air will be sucked to cause overheating Wiring duct 20cm or more Clearance When arranging the wiring duct and so on prevent the cooling wind from being hindered Integrated cooling fan 20cm or more Clearance Surrounding space Cautions for am
22. istor Wire wound resistor and so on 2 Disconnect one end and measure with tester 1 Simulatively connect or disconnect inverter protective circuit output terminals 1 Turn by hand with power off 2 Re tighten 1 Check that lamps are lit 2 Clean with rag Check reading of meters on panel 15 1 5M or more 500VDC 2 3 No fault class megger 1 2 No fault See the following pages Analog tester 1 2 No fault 3 85 or more of rated capacity 1 No fault 2 No fault 1 No fault 2 Error should be within 10 of indicated resistance value Tester digital multimeter 1 Fault must occur because Digital of sequence y multimeter rectifier type voltmeter 1 Smooth rotation 2 No fault Must satisfy specified and Voltmeter management values ammeter etc 6 3 Checking the inverter and converter modules 1 Preparation e Disconnect the external power supply cables R2 S2 and T2 and inverter cables P N Prepare a tester Use 10 range 2 Checking method Change the polarity of the tester alternately at the inverter terminals R2 S2 T2 P and N check for continuity Note 1 Before measurement check that the smoothing capacitor is discharged 2 At the time of continuity the measured value is several to several ten s of ohms depending on the module type quantity in parallel circuit tester type etc If all measured valu
23. ntrol power in the control circuit Their characteristics are adversely affected by ripple current etc When the inverter is operated in an ordinary air conditioned environment change the capacitors about every 5 years When 5 years have elapsed the capacitors will deteriorate more rapidly Check the capacitors at least every year less than six months if their life will be expired soon Check the following 1 Case side faces and bottom face for expansion 2 Sealing plate for remarkable warping and extreme cracks 3 Explosion proof valve for excessive valve expansion and operation 4 Appearance external cracks discoloration leakage When the measured capacitance of the capacitor has reduced below 85 of the rating change the capacitor On the new part measure and record the capacity across P and N 3 Relays To prevent a contact fault etc relays must be changed according to the number of accumulative switching times switching life See the following table for the inverter parts replacement guide Lamps and other short life parts must also be changed during periodic inspection Replacement Parts of the Inverter Cooling fan 2 to 3 years Change as required Smoothing capacitor in main circuit Change as required Smoothing capacitor on control board Change the board as required 7 Troubleshooting If any trouble should occur to impair the function of the equipment isolate the cause and take the
24. roken Inverter Proper connection 0 Improper connection 2 If the AC reactor MT BAL for power cooperation is installed be sure to connect it to the power supply side of the inverter Referring to P9 don t improperly connect them 3 Keep the wiring distance of 5m or less across the terminals P and N of the inverter Use the cables of the recommended size or more Refer to P25 4 Though the common terminals SD and SE of the control circuit are insulated from each other don t ground them 5 Use the shield cable or twist cable as the connection cables to the terminals of the control circuit and separate them from the main circuit power circuit 200V sequence circuit and so on 6 To surely prevent the wire chips from entering the inside during wiring work place the cover or similar on the upper vent hole 7 For secure grounding use the ground terminal 8 Properly connect the terminals R S and T in the phase order If they are improperly connected the power regenerative converter will be broken or the circuit breaker will trip against overcurrent If it trips against overcurrent be sure to check whether they are connected in the proper phase order or not before turning ON the power supply again Design information 1 Arrange NFB and MC to surely make the power regenerative converter previously turned ON when the power supply is turned ON ME Proper connection 0 Improper connection
25. the unit rises Cooling fan stop The cooling fan stops due to an abnormality Output of the power regenerative converter is stopped 19 8 Specifications 8 1 Standard specifications Model MT RC H75K H160K H220K H280K Rated input power supply 3 phase 380V to 460V 50 60Hz voltage frequency Tolerable voltage fluctuation 323V to 506V 50 60Hz Applicable motor capacity 90 to 160 185 to 220 250 to 280 Ee ud Continuous rating 10096 x Short time rating 15096 60 seconds MT A140 A240 A140E A240E Series FR A540L FR F540L Series MT V240 Series Input output Input signal Reset signal signal output signal Ready signal Open collector Alarm signal 1C contact Applicable control unit Overcurrent shut off Arm short circuit Regenerative overvoltage shut off Overload Protective function shut off Undervoltage protection Ground fault overcurrent protection on the power supply side CPU error Cooling fin overheat protection Cooling fan stop TAE display of regenerative power including an error of 5 display of error Display LED 4 digit display content Ambient temperature 10 C to 50 C non freezing Ambient humidity 90 RH or less non condensing Storage temperature 20 C to 66 C JEM1030 Indoors free from corrosive gas flammable gas oil mist dust and dirt as Altitude of 1000m or less 5 9m s 0 6G or less ie ee a Compliance with JIS C0911 Protecti
26. ve structure Open type IPOO Cooling system JEM 1030 Forced air cooling AC reactor model standard accessory H75K H160K H220K H280K MT RCL x 1 The current flows in the AC bus cables terminals P and N of the main circuit 20 8 2 Block diagram Inverter To motor Power Regenerative Converter MT RC Voltage detection Current detection Phase detection I L detection Current LED Display 21 8 3 Terminal specifications ETE code R AC power supply input terminals 3 phase 380V to 460V 50 60Hz AC reactor Power regenerative converter connection terminal Converter input terminals AC reactor connection terminals Main circuit type 3 phase 380V to 460V 50 60Hz Power phase detection terminals Regenerative converter unit Power supply terminals for control circuit STF ES shorted R Reset input terminal when RES to SD circuit is shorted 4 to 6 mA A 1C contact B Error output terminal 200VAC 0 3A C 30VDC 0 3A Ready output terminal Contact input SD common terminal DC Control circuit type Regenerative converter unit collector output RDY common 24VDC 0 1A SE terminal 22 Test mode terminal Input resistor 4 7kQ when STF to SD circuit is Tolerable load of open Terminals are connected to the same input power of the inverter Terminals are
27. ver Parameter unit is not mm f 1 A 1 a EI TER 4 6 Fe F E A M4 8 screw 10 ID 71 F Air suction ao ann __ M10 screw ETN rn Ground terminal gje d if Control cable inlet port E di a ta af LAA pr a aia 4 cu 00 LEE k a ER 300 25 a Air exhaust pl gh z KW BT EB Em o 2 P Zmm ole for hanger 310 ne se Mounting hole riam ac Accessory cover Parameter unit is not 4 usable m 1 Ei Air suction 2 M10 screw Ground terminal 11 23 B J E E mE T TJ i Ma T L la pet When cooling fin is positioned outside the panel u aua i 4 MT RC H220K 3 410 E Ap Mounting hole UU WE Accessory cover Parameter unit is not usable Control cable inlet port MT RC H280K s ly E ur mr E a 3 imm ale aa EIU Mounting hole A A Accessory cover Parameter unit is e not usable EH tH Control cable inlet port r gt kg ie OG T gh 219 Vna S ya Air exhaust ur 4 E d l6 inl When cooling fin is positioned outside the panel 156 ee 5 Air exhaust Bl 1 Hole for hanger Air Lotion i M10 2 screw 1 M6 8 screw
28. west possible temperature in the panel in order to prevent it from exceeding the tolerable value O Wiring Refer to page 6 Improper wiring of the main circuit causes the product to be broken Against the noise influence separate the control signal line from the main circuit 1 Structure DOE 1 1 Appearance and structure Installation leg two upper and lower places detachable LED indication lamp mms Accessory cover The parameter unit for the inverter can not be installed lcm Main body of MT RC unit Fig 1 Product appearance 2 Unpacking inspection During unpacking inspection check the following points 1 Checking the rating nameplate on the power regenerative converter verify that the model is as ordered 2 Check for damage during transportation 3 Verify that the reactor model is as shown below Regenerative converter model MT RC H75K MT RC H160K MT RC H220K MT RC H280K Reactor MT RCL model MT RCL H75K MT RCL H160K MT RCL H220K MT RCL H280K If any obscure point or damage is found among the above contact your dealer or our nearest sales office 3 Installation DEDO 3 1 Transportation Carefully handle the power regenerative converter against a damage Here don t lift it to apply any force to the surface cover alone 3 2 Installation site 1 For installation avoid the following places Place exposed to direct sunlight high temperature or hig
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