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Mitsubishi Electric M9950 Series Technical Manual

Mitsubishi Electric M9950 Series Technical Manual

Uninterruptible power supply system 60-600kva, inclusive parallel operation system
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UNINTERRUPTIBLE POWER SUPPLY SYSTEM
MODEL
M9950 SERIES
OWNERS / TECHNICAL MANUAL
60~600kVA
(Inclusive Parallel Operation System Application)
TM.0199.224

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Summary of Contents for Mitsubishi Electric M9950 Series

  • Page 1 UNINTERRUPTIBLE POWER SUPPLY SYSTEM MODEL M9950 SERIES OWNERS / TECHNICAL MANUAL 60~600kVA (Inclusive Parallel Operation System Application) TM.0199.224...

  • Page 2: Table Of Contents

    3.3 PROCEDURE FOR CABLE CONNECTIONS ........... 3-2 3.4 RECOMMENDED CABLE SIZES ............... 3-5 3.5 OPERATING PROCEDURES ..............3-15 4.0 RESPONSE TO UPS FAILURE ..............4-1 5.0 PARTS REPLACEMENT ................5-1 6.0 FAULT CODES ..................6-1 7.0 DAILY INSPECTION .................. 7-1 MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 3: List Of Tables

    Recommended Cable Sizes（AC Input） ........3-5 TABLE 3.4 Recommended Cable Sizes（AC Output, Bypass Input） ..3-5 TABLE 3.5 Recommended Cable Sizes（DC Connection） ......3-5 TABLE 6.1 Fault Code ..................6-2 TABLE 7.1 How to perform daily inspection ........... 7-1 MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 4 FIGURE 2.6-f Battery log(CN) ..................2-7 FIGURE 2.7-a Main Screen (EN)(Battery Operation) ............2-8 FIGURE 2.7-b Main Screen (CN)(Battery Operation) ............2-8 FIGURE 2.7-c Measurement screen (EN)(Battery Operation) ......... 2-8 FIGURE 2.7-d Measurement screen (CN)(Battery Operation) ........2-8 MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 5 Circuit protectors location ................. 3-15 FIGURE 3.7 Circuit configuration of single module system .......... 3-16 FIGURE 3.8 Circuit configuration of Individual Bypass Parallel Redundancy System . 3-29 FIGURE 3.9 Dynamic Regenerative Load with UPS System ........3-40 MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 6: How To Use This Manual

    Prohibit: A prohibit symbol shows the act the user or the service personnel should NEVER perform during the UPS installation, operation or service work. PROHIBIT Safety Recommendations: If any problems are encountered while following this manual, TMEIC field service group assistance and correspondence is recommended. MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 7: Introduction

    IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS CAUTION This manual contains important instructions for the M9950 SERIES Uninterruptible Power Supply Systems that should be followed during installation and maintenance of the UPS and batteries. WARNING 1 WARNING Lethal voltages exist within the equipment during operation.

  • Page 8: Safety Precautions

    • Equipment to supervise or control airways, railways, roads, sea-lanes or other transportation. • Equipment in nuclear power plants. • Equipment to control communications. NOTE • Equipment equivalent/similar to the above mentioned. MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 9: Table 1.1 Ups Installation Environment

    No more than 0.002 PPM Class1 Hydrogen fluoride gas (HF) No more than 0.001 PPM Ammonia gas (NH No more than 1 PPM Nitrous oxides (NO No more than 0.05 PPM Ozone (O No more than 0.002 PPM MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 10 Note: The DC input overcurrent protection (Battery disconnect breaker) hereinafter will be referred as “72B”. WARNING 5 WARNING Risk of Voltage Backfeed Before working on this circuit Isolate Uninterruptible Power System (UPS), Then check for Hazardous Voltage between all terminals including the protective earth MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 11: General

    UPS. The UPS is simple to start-up, operate and maintain. The M9950 SERIES UPS is available in five kVA sizes – 60, 120,160, 200, 300, 400, 500 and 600kVA. Specifications for each kVA model appear in Section 1.6. The principles of operation described herein are applicable to all models.

  • Page 12: Definitions

    UPS for supplying the critical load. BATTERY - The rechargeable battery strings which supply DC power to the inverter to maintain continuous AC power to the load during AC input power failure conditions. MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 13: Operation Overview

    The power drawn by the critical load is equally shared between all UPS whenever the system is in the Parallel Operation. (Refer to FIGURE 3.4 that shows a sample of Parallel Operation System Configuration.) MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 14: Figure 1.2 Single Line Diagram-Bypass Operation

    (converter and inverter), and during Start-up before the system is fully operational. Each UPS internal static bypass line will equally share the power supplied to the critical load whenever the system is in the Parallel Operation. MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 15: Figure 1.3 Single Line Diagram-Battery Operation

    A fully charged battery will provide power for the specified time at the rated load, or longer, at a reduced load. (s)* : In the case of the Parallel Operation MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 16 The power drawn by the load is equally shared between all UPS regardless of the presence whenever the system is in the or absence of the UPS that is (are) in battery operation or not Parallel Operation. . MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 17: Figure 1.4.A Ups Parts Location (500,600Kva)

    Communication AC Input Connecter (A, B, C) Bypass Input (A40, B40, C40, N) 2. Display PCB DPAU-81 DC Input (BP, BN) AC Output (A50, B50, C50, N) 6.Grounding Bar(E) Inside of the Door Cable entry MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 18: Figure 1.4.B Ups Parts Location (300,400Kva)

    PCB(IOAU-09) 6.Grounding Bar(E) Monitor Display 3. External Communication Connecter AC Input 2. Display PCB Bypass Input DPAU-81 A40 B40 C40 N50/N40 AC Output A50 B50 C50 DC Input (BP,BN) Inside of the Door Cable entry MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 19 1. LCD Touch Panel CPM CPM EMB Monitor Display 3. External Communication Connecter 2. Display PCB BN BP A B C A41 B41 C41 DPAU-81 A51 B51 C51 N41/N51 6.Grounding Bar(E) Cable entry Inside of the Door MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 20: Figure 1.5 Display Pcb Dpau-81

    11. SW5 12. SW6 RESET switch button button TEST switch MAINTENANCE switch FIGURE 1.6 External I/F PCB IOAU-09 16. External contact signal terminal block FIGURE 1.7 Parallel I/F PCB IFAU-22 ( *Option of parallel system MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 21 ELECTRIC FIGURE 1.8 MAIN PCB (a) UPHR-K* 15. SW3 52L S/W switch 14. SW2 13. SW1 BOOT switch RESET switch (b) UPJR-E* 14. SW2 BOOT switch 13. SW1 RESET switch 15. SW3 52L S/W switch MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 22 12. "MAINTENANCE" switch (FOR SERVICE PERSONNEL ONLY) This switch sets the UPS menu parameters. 13. "RESET" switch (FOR SERVICE PERSONNEL ONLY) This switch resets errors resulting from alarm conditions. 14. "BOOT" switch (FOR SERVICE PERSONNEL ONLY) MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 23 This switch prohibits turning on the AC output contactor “52C” during test/maintenance in Parallel Operation system application. 16. External contact signal terminal block Terminal block to connect contact signal input/output lines to and from external dry contacts. Refer to FIGURE 2.10 for details. MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 24: System Single Line Diagram

    *.This system is required to add a reactor to the bypass circuit between main UPS and backup UPS. *.The internal switches 52PS and 52L keep connecting, and 52M keeps disconnecting during normal operation. Transfer load to external maint enance bypass to supply power during maintenance procedures. MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 25 AC Input should be non-grounded. ※3: To prevent circuit unbalance occurred when providing power by bypass mode, to install a 1% reactor(Variability±1%) to AC Output for each UPS would be necessary in MMS system. MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 26: Specifications

    81.8 / 2080 1344.8/ 610 5500 6900 10350 55.1 / 1400 32.6 / 830 81.8 / 2080 2314.9 / 1050 BOTTOM/TOP 13800 15450 70.9/ 1800 32.6 / 830 81.8 / 2080 3637.6 / 1650 BOTTOM/TOP 20600 MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 27: Table 1.6 Detail Of Specifications

    32ﾟF to 104ﾟF ( 0ﾟC to 40ﾟC). Recommended : 68ﾟF to 86ﾟF ( 20ﾟC to 30ﾟC) Relative Humidity 20% ~ 80% Non Condensing Altitude 1000 meter (3280feet) Location Indoor (free from corrosive gases and dust) MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 28: Table 1.7 Rating Of Contactors, Breaker And Fuses

    450A / 690V 900A / 550V － FPC-FNC CHOP fuse 800A/690V 1250A / 600V － － AC maintenance switch 400A － － 52PS AC bypass switch 400A － － AC output switch 400A *Rating would be changed. MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 29: Operation Controls And Indicators

    Page Number: M9950 SERIES UPS MITSUBISHI OWNERS / TECHNICAL MANUAL ELECTRIC 2.0 OPERATION CONTROLS AND INDICATORS The M9950 Series operator controls and indicators are located as follows (Door exterior). FIGURE 2.1 Operation/Display Panel (Front panel) LOAD ON BAT. LOAD ON OVER INV.

  • Page 30: Led Display

    2.2 EPO BUTTON (Emergency Power Off button) (7) When activated, the Emergency Power Off (EPO) function shuts down the UPS module. The critical load will lose power and also shutdown. The EPO function can be performed both locally or remotely. MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 31: Liquid Crystal Display

    -Start: When the bypass voltage is abnormal, the LCD asks the operator if an interrupted transfer is acceptable (Load may be lost). -Stop: When the bypass voltage is abnormal, the user cannot transfer from inverter to bypass line. MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 32: Figure 2.3-A Startup/Shutdown Guidance(En)

    MITSUBISHI OWNERS / TECHNICAL MANUAL ELECTRIC FIGURE 2.3-a Startup/Shutdown guidance(EN) FIGURE 2.3-b Startup/Shutdown guidance(CN) FIGURE 2.3-c Startup guidance(EN) FIGURE 2.3-d Startup guidance (CN) FIGURE 2.3-e Shutdown guidance(EN) FIGURE 2.3-f Shutdown guidance() Follow Startup/Shutdown guidance accordingly. MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 33: Figure 2.4-A Input Values (En)

    During Battery operation, Remaining battery power and Run time are also displayed. FIGURE 2.4-a Input values (EN) FIGURE 2.4-b Input values (CN) FIGURE 2.4-c Output values(EN) FIGURE 2.4-d Output values(CN) FIGURE 2.4-e Values in Battery operation(EN) FIGURE 2.4-f Values in Battery operation(CN) MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 34: Figure 2.5-B Remote/Local Operation Select(Cn)

    The battery equalizing charge operation key will appear when battery equalizing charge is set up (Setup is based on battery type). FIGURE 2.5-a Remote/Local FIGURE 2.5-b Remote/Local operation select(EN) operation select(CN) FIGURE 2.5-c Date & Time adjustment(EN) FIGURE 2.5-d Date & Time adjustment(CN) MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 35: Figure 2.6-A Log Menu(En)

    Pressing the BATTERY LOG icon, Number of battery operations and Summed battery operation time are displayed. FIGURE 2.6-a Log menu(EN) FIGURE 2.6-b Log menu(CN) FIGURE 2.6-c Event log(EN) FIGURE 2.6-d Event log(CN) FIGURE 2.6-e Battery log(EN) FIGURE 2.6-f Battery log(CN) MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 36: Figure 2.7-A Main Screen (En)(Battery Operation)

    When the input power is restored, the inverter will automatically restart to power the load, and the batteries will be simultaneously recharged. The End of Battery announcement is shown at the bottom of the screen. MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 37: Figure 2.8-A Main Screen (Fault Indication)(En)

    5 second intervals. FIGURE 2.9-a Message screen(EN) FIGURE 2.9-b Message screen(CN) SILENCE ALARM This icon “STOP ALM” will appear when a failure occurs. The audible alarm (announcing the failure) can be silenced by pressing this icon. MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 38: External Signal Terminal Block

    OUT1: LOAD ON BYPASS OUT2: LOAD ON INVERTER OUT3: BATTERY OPERATION OUT4: CONVERTEN OPERATION OUT5: BATTERY LOW VOLTAGE OUT6: OVERLOAD OUT7: SPARE OUT8: TOTAL ALARM（Triggers on fault alarm only） 52C CLOSE *1 Relay contactor (52C close): Normal Closed MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 39 FIGURE 2.10-b External Signal Terminal Block (NEC Class2) 72B UVT Battery Breaker Panel 72B AX Load Circuit Switch 52L AX IN1: REMOTE INVERTER START (User supplied dry contact) IN2: REMOTE INVERTER STOP IN3: BATTERY TEMP. HIGH IN4: POWER DEMAND REMOTE EPO MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 40: Figure 2.11 Control Wiring For External Contacts

    Terminals 15 to 16 "Total Alarm" contact (OUT7) Activated during major fault, minor fault and alarm events. Terminals 17 to 18 "Spare" contact (OUT8) Terminals 19 to 20 "52C Close" contact (OUT9) Activated when the inverter output contactor 52C has closed. MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 41: Figure 2.12 Remote "Start" Contact Connections

    FIGURE 2.12 Remote "Start" Contact Connections External to UPS UPS Cabinet Cabinet Relay Start Coil Start Switch Common 0.5S - 4S 24 VDC Relay Coil current : 8.3mA Use Momentary Switches Only User supplied MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 42 The UPS is equipped with a selectable input contact item. The above items are the default settings. Contact MITSUBISHI for setup information NOTE In all cases, a switch having a protective cover is recommended in order to reduce the possibility of accidental operation CAUTION MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 43: Installation And Operation

    * Use lifting eyes on landing cabinet only to lift landing cabinet by itself, not as part of assembled unit. Do not transport UPS cabinet laid horizontally. PROHIBIT Cabinets must be maintained upright within +/- 15° of the vertical during handling. NOTE MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 44: Installation Procedure

    Please refer to the following when installing and maintaining batteries: The customer shall refer to the battery manufacturer's installation manual for battery installation and maintenance instructions. The maximum permitted fault current from the remote battery supply. NOTE MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 45: Procedure For Cable Connections

    Bypass Input power terminals A40, B40 and C40 are correct. The proper phase rotation is clockwise A(R) → B(S) → C(T). Connect the grounding conductor from the input service MANDATORY entrance to the UPS Ground Bar (E). MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 46 (2) Using adequately sized conductors and referring to the appropriate figure identified in FIGUREs 3.1 to 3.4, connect jumper bypass terminals A40, B40, C40 to AC input power terminals A, B, C as identified in FIGUREs 3.1 to 3.4. MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 47 - Parallel control signal for CN94 as shown in FIGURE 3.6. - Parallel control signal for CN96 and CN95 as shown in FIGURE 3.6. b.) Power wire connection From UPS AC Output Terminals to Critical Load Cabinet (CLC) (Refer to FIGURE 3.5 and 3.6.) MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 48: Recommended Cable Sizes

    *2 - Voltage drop across power cables not to exceed 2% of nominal source voltage. *3 - Allowable ampere-capacities based on 75 degree C. insulation at ambient temperature of 40 degree C. Note: Copper conductors assumed. MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 49: Figure 3.1 Ups Terminal Designation

    (60, 120, 160, 200kVA) Terminals Bypass Input 52PS Output CONVERTER INVERTER / CHARGER Terminals Terminals 52RC Input Terminals External BATTERY (300~600kVA) Terminals Bypass Input Output CONVERTER INVERTER / CHARGER Terminals Terminals 52RC Input Terminals External BATTERY MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 50 Location of bus bars and terminal blocks (Top / Bottom Side Entry) Detailed Power Terminals 500, 600kVA： H:1980mm W:1800mm D:830mm ※H: 2080(include Channel base) For power terminals, use 1/2” (12mm) diameter bolts. Cable Entry Input Battery Input Output Grounding Bar (E) Cable Entry MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 51 Location of bus bars and terminal blocks (Top / Bottom Side Entry) Detailed Power Terminals 500,600kVA： H:1980mm W:1800mm D:830mm ※H: 2080(include Channel base) For power terminals, use 1/2” (12mm) diameter bolts. Cable Entry Input Bypass Input Battery Input Output Grounding Bar (E) Cable Entry MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 52 For power terminals, use 1/2” (12mm) diameter bolts. ※H: 2080(include Channel base) Cable Entry (Top) Grounding Bar (E) Input AC INPUT Bypass Input AC OUTPUT B50 C50 Output BYP INPUT A40 B40 C40 Cable Entry (Bottom) MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 53 For power terminals, use 1/2” (12mm) diameter bolts. ※H: 2080(include Channel base) BN, BP A, B, C A41, B41, C41, N41 A51, B51, C51 DC INPUT AC INPUT BY INPUT AC OUTPUT Grounding Bar Grounding Bar Cable Entry (Bottom) MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 54: Figure 3.3 Diagram Of Power Wire & Control Wire Inter-Connect Between Ups And Battery

    Note3)When the magnetization voltage of a coil returns to 24V, it is possible to reset a breaker in the OFF state. Note4)DC24V-16mA is impressed to 72B auxiliary contact through a terminal box from IOAU-09 PWB. MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 55 FIGURE 3.4.c Changing to two (2) source feeding the UPS from one (1) sources feeding the UPS at 500,600kVA When two (2) sources feeding the UPS are selected, remove Jumper Bus Bars between AC Input and Bypass Input. MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 56 Inverter 52RC 52L 2 AC output AC input Battery UPS-2 UPS-n *1 Bypas Bypass input 52PS Converter 52L n *1 /Charger Inverter 52RC AC output AC input *1 n : Maximum = 8 Battery UPS-2 MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 57 CN93 UPS-1 CB2IN CB2E CB1IN CB1E UPS-2 CA2IN CA2E CA1IN CA1E CB2OUT CB2FR *1 Return from the last UPS CB1OUT CN92 OUTPUT module to the second UPS CB1FR CA2OUT module (continuous loop). CA2FR CA1OUT CA1FR MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 58 *2 n = 4 (maximum) for this IFAU-22 TLBIN ETLBIN cabling configuration ETLAIN TLAIN ETLBOUT TLBOUT ETLAOUT TLAOUT CN93 CB2IN CB2E CB1IN CB1E CA2IN CA2E CA1IN CA1E CB2OUT CB2FR CB1OUT CN92 OUTPUT CB1FR CA2OUT CA2FR CA1OUT CA1FR MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 59 UPS module (continuous loop). CB2IN CB2E *2 n = 8 (maximum) for this CB1IN CB1E cabling configuration CA2IN CA2E CA1IN CA1E CB2OUT CB2FR CN92 CB1OUT OUTPUT CB1FR CA2OUT CA2FR CA1OUT CA1FR MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 60: Operating Procedures

    EMB) located at the upper part of the cabinet (FIGURE 3.7). 1) CPMC and CPMS: ON; 2) EMB: OFF. FIGURE 3.7 Circuit protectors location CPMC CPMS EMB CPMC CPMS CPMC CPMS EMB 500, 600kVA 300, 400kVA 60, 120, 160, 200kVA MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 61 When "REMOTE OPERATION MODE" is displayed on the touch screen, the inverter start operation can only be performed remotely. If local inverter start operation is required (at the UPS), select "LOCAL ONLY" or “REMOTE & LOCAL” in the OPERATION MENU. NOTE MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 62 BATTERY : Automatic Start-up OUTPUT : 380V 50.0Hz 52R C C N V IN V START/STOP B A T T 10:00 08/08/08 After turning external input breaker (52R) "ON", the status of "Alarm" will be deactivated. MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 63 5 2R C C N V 5 2C IN V SYNC. START/STOP 7 2B B A T T 10:00 08/08/08 When inverter output voltage and bypass voltage are synchronized, the message "SYNC." or "同步" will be shown on screen. MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 64 52R C C N V IN V 同步 关闭 B A T T 10:00 08/08/08 STATUS MAIN MEAS START STOP 52R C C N V IN V SYNC. CLOSE B A T T 10:00 08/08/08 MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 65 MAIN BYPASS : 380V 50.0Hz INPUT : 380V 50.0Hz BATTERY : 540V OUTPUT : 380V 50.0Hz 100A 52R C C N V IN V SYNC. START/STOP B A T T UPS Start-up completed 10:00 08/08/08 MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 66 When inverter output voltage and bypass voltage are synchronized, the message "SYNC." or "同步" will be shown on screen. 主菜单 测量 操作 日志 启动操作指导 关机操作指导 设置 LANGUAGE 10:00 08/08/08 MAIN MEAS STATUS STARTUP SHUTDOWN GUIDANCE GUIDANCE SETUP LANGUAGE 10:00 08/08/08 MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 67 B A T T 10:00 08/08/08 MEAS STATUS MAIN STOP START 5 2 S 5 2 R C C N V 5 2 C IN V SYNC. CLOSE 7 2 B B A T T 10:00 08/08/08 MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 68 Load on Bypass OUTPUT : 380V 50.0Hz 100A Operation completed Conversion modules (include inverter and converter) keep supplying power 52R C C N V IN V to charge batteries. SYNC. START/STOP B A T T 10:00 08/08/08 MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 69 Manual OFF Fellow the procedure of operation flowchart, the touch screen will shutdown External DC Input Breaker after turning the external breaker "52R" off. (72B) Automatic trip Input Contactor (52RC) Automatic OFF UPS Shutdown, Operation completed MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 70 BYPASS : 380V 50.0Hz INPUT : 380V 50.0Hz BATTERY : 540V OUTPUT : 380V 50.0Hz 100A 52R C C N V IN V SYNC. Load on BYPASS START/STOP 72 B B A T T 10:00 08/08/08 MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 71 STATUS BYPASS : 380V 50.0Hz INPUT : 380V 50.0Hz BATTERY : 540V OUTPUT : 380V 50.0Hz 100A 52R C C N V IN V Load on INVERTER SYNC. START/STOP B A T T 10:00 08/08/08 MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 72 Touch panel（LCD Screen) is turned off. Control powers are lost. External DC Input Breaker (72B) Automatic trip ※Do not turn off External Bypass Input Breaker(52RS). Cause the output shat down Load on INTERNAL MAINTENANCE BYPASS MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 73 BYPASS : 380V 50.0Hz Load on INPUT : 380V 50.0Hz Inverter BATTERY : 540V OUTPUT : 380V 50.0Hz 100A 52R C C N V IN V SYNC. START/STOP B A T T Load on INVERTER 10:00 08/08/08 MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 74 72B2 UPS 2 Battery Battery Panel 1 Panel 2 The operation of system start in the status of "Load on maintenance bypass". (Confirm all of the switches is opened or in tripping position besides 52MB.). MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 75 BATTERY : Automatic Start-up OUTPUT : 380V 50.0Hz 52R C C N V IN V START/STOP B A T T 10:00 08/08/08 After turning external input breaker (52R) "ON", the status of "Alarm" will be deactivated. MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 76 When inverter output voltage and bypass voltage are synchronized, the message "SYNC." or "同步" will be shown on screen. The mark "※" indicates the master UPS in the parallel system. (the mark dose not show in the Single-Module system) MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 77 (Any one of the Touch Screen paraller UPSs) 启动操作指导 关机操作指导 Press 「操作」 or 「OP」 MMS 操作 设置 LANGUAGE 10:00 08/08/08 MAIN MEAS STATUS STARTUP SHUTDOWN GUIDANCE GUIDANCE SETUP OPERATION LANGUAGE 10:00 08/08/08 □：Operate sequentially from No.1 UPS MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 78 测量 操作 日志 Bypass Contactor （52S） MMS 操作 Automatic OFF 启用转换操作 逆变器操作 旁路操作 旁路系统 逆变器系统 10:00 08/08/08 MAIN MEAS STATUS MMS OPERATION Enable transfer operation. INVERTER BYPASS OPERATION OPERATION SYSTEM BYP. SYSTEM INV. 10:00 08/08/08 MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 79 BATTERY : 540V OUTPUT : 380V 50.0Hz 100A 5 2 S 5 2 R C C N V 5 2C IN V ※SYNC. START/STOP 7 2 B B A T T 10:00 08/08/08 UPS Start-UP completed MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 80 The mark "※" indicates the master UPS in the parallel system. (the mark is not shown in the Single-Module system) 主菜单 测量 操作 日志 启动操作指导 关机操作指导 MMS 操作 设置 LANGUAGE 10:00 08/08/08 MAIN MEAS STATUS STARTUP SHUTDOWN GUIDANCE GUIDANCE SETUP OPERATION LANGUAGE 10:00 08/08/08 MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 81 Automatic ON MMS 操作 启用转换操作 （All UPS） 逆变器操作 旁路操作 Output Contactor (52C) Automatic OFF 旁路系统 逆变器系统 10:00 08/08/08 MAIN MEAS STATUS MMS OPERATION Enable transfer operation. INVERTER BYPASS OPERATION OPERATION SYSTEM BYP. SYSTEM INV. 10:00 08/08/08 MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 82 <SHUTDOWN GUIDANCE> IF UPS SHUTDOWN, TURN OFF 72B. 5 2 S 5 2C 5 2R C C N V IN V ※SYNC. START/STOP 7 2 B B A T T 10:00 08/08/08 From next page MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 83 5 2S 5 2R C C N V 5 2C IN V ※SYNC. START/STOP 7 2B B A T T 10:00 08/08/08 External Bypass Breaker (52RS□) Manual OFF From next page □：Operate sequentially from No.1 UPS MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 84 5 2 S 5 2R C C N V 5 2C IN V ※SYNC. START/STOP 7 2B B A T T Normal Stop Shutdown 10:00 08/08/08 Operation Operation complete complete □：Operate sequentially from No.1 UPS MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 85: Response To Ups Failure

    The error code indicated on the LCD display panel when an UPS alarms is very important. In order to reduce repair time, please include this information, along with the operation and load status for all correspondence NOTE to MITSUBISHI field service group. MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 86: Parts Replacement

    MITSUBISHI could result in personal injuries, death or destruction of the UPS. WARNING Power shutdown and wait 5min for internal capacitors discharge and stopped rotating of fans should be confirmed before any replacement work. CAUTION MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 87: Fault Codes

    A) Verify and record the occurrence of the alarm. Note details of alarm message displayed on the LCD display panel. B) If a circuit breaker (MCCB) has tripped, depress the toggle to reset the breaker before closing it again. (Conditions of MCCB） CLOSE TRIP OPEN （Left sight view） MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 88: Table 6.1 Fault Code

    EPO switch or an Alarm STOP ACTIVATED external contact. The UPS could not transfer to the TRANSFER bypass because the inverter － － － UA821 Alarm PROHIBITION output was not synchronized to the bypass. MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 89 INPUT CIRCUIT Detection of a large variation of Intermittent UF059 SERVICE Minor Flicker ABNORMAL the reference error signal. sound ENGINEER CALL DC voltage surpasses the Continuous UF102 SERVICE Major Lit on OVERVOLTAGE overvoltage level. sound ENGINEER MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 90 Poor shared current in parallel CALL UPS CONTROL Intermittent UF171 chopper circuit; or improper SERVICE Minor Flicker CIRCUIT ERROR sound charging current. ENGINEER CALL CHG. STOPPED Intermittent UF172 Energy storage device error. SERVICE Minor Flicker (DEVICE STATUS) sound ENGINEER MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 91 Major Lit on SERVICE CIRCUIT ERROR sound execution. ENGINEER CALL UPS CONTROL Timer does not reset in the Continuous UF303 SERVICE Major Lit on specified period (WDT settings) sound CIRCUIT ERROR ENGINEER MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 92 UPS CONTROL Abnormal clock speed of the Intermittent UF379 SERVICE Minor Flicker CIRCUIT ERROR parallel control board processor. sound ENGINEER CALL STS CONTROL Intermittent UF381 STS current value abnormal. SERVICE Minor Flicker CIRCUIT ERROR sound ENGINEER MITSUBISHI ELECTRIC M9950 SERIES UPS...
  • Page 93 U%4++ --------------------- Bypass system failure U%8++ --------------------- Alarm U%+00 - U%+49 ------- Major failure U%+50 - U%+99 ------- Minor failure *) “+” denotes any numeral from 0 to 9 *) “%” denotes either “A” or “F” MITSUBISHI ELECTRIC M9950 SERIES UPS...

  • Page 94: Daily Inspection

    Contact service representative to tell about fault codes and UPS symptom. *Air filter also need to be checked during the daily inspection by visual check. Air filter required to clean up 3 month period. MITSUBISHI ELECTRIC M9950 SERIES UPS...

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