Mitsubishi Electric 9900CX Series Owner's Manual
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Mitsubishi Electric 9900CX Series Owner's Manual

Mitsubishi Electric 9900CX Series Owner's Manual

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UNINTERRUPTIBLE POWER SUPPLY SYSTEM
MODEL
9900CX SERIES
OWNER'S / TECHNICAL MANUAL
(Inclusive Parallel Operation System Application)
UNINTERRUPTED Peace of Mind
®

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Summary of Contents for Mitsubishi Electric 9900CX Series

  • Page 1 UNINTERRUPTIBLE POWER SUPPLY SYSTEM MODEL 9900CX SERIES OWNER’S / TECHNICAL MANUAL (Inclusive Parallel Operation System Application) UNINTERRUPTED Peace of Mind ®...
  • Page 2 Preface Revision 7 06/28/2024 U-ENM00043...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS LIST OF TABLES ....................... ii LIST OF FIGURES ......................iii HOW TO USE THIS MANUAL ................... iv 1.0 INTRODUCTION ....................... 1-1 1.1 SAFETY PRECAUTION .................... 1-2 1.2 GENERAL ........................1-7 1.3 DEFINITIONS ......................1-8 1.4 OPERATION OVERVIEW ..................1-9 1.5 SPECIFICATIONS .....................

  • Page 4: List Of Tables

    Recommended Hardware ................3-5 Table 3.6 Crimp Type Compression Lug ..............3-6 Table 6.1 Bypass Module Fault Code List ..............6-2 Table 6.2 UPS Module Fault Code List ............... 6-6 Table 8.1 Typical Offerings ..................8-1 MITSUBISHI ELECTRIC 9900CX SERIES UPS...
  • Page 5 Figure 3.1 UPS Terminal Designation ..............3-6 Figure 3.2 Diagram of Input/Output Bus Bars and Terminal Blocks ......3-7 Figure 3.3 Diagram of Power Wire and Control Wire Interconnection Between UPS and Battery ..................3-8 MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 6: How To Use This Manual

    UPS operation, load status and display status. Such information is essential if Mitsubishi field service group assistance is required. Safety Recommendations: If any problems are encountered while following this manual, Contact Mitsubishi field service at 1-800-887-7830. MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 7: Introduction

    IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS This manual contains important instructions for the 9900CX SERIES Uninterruptible Power Supply System that should be followed during installation and maintenance of the UPS. WARNING 1 Lethal voltages exist within the equipment during operation. Observe all warnings and cautions in this manual.

  • Page 8: Safety Precaution

    UPS. Before UPS startup, remove all vent covers when construction is complete. PRECAUTIONS FOR UPS OR UPS PARTS DISPOSAL CAUTION  Dispose of the UPS or any UPS components in accordance with all local, state, and national requirements. MITSUBISHI ELECTRIC 9900CX SERIES UPS...
  • Page 9 If the UPS System is to be used to support equipment that could affect human safety, the following steps must be adhered to: 1. Consult with Mitsubishi Electric Power Products Inc. UPS Division at 1-800-887-7830. 2. Special consideration of the overall backup power system configuration is required so that the Mitsubishi UPS System is not the sole support required for operation, maintenance and management of power availability.

  • Page 10: Table 1.1 Ups Installation And Operational Environment

    Hydrogen chloride (HCl) <0.0066 PPM <0.0066 PPM Hydrogen fluoride (HF) <0.001 PPM <0.005 PPM Ammonia (NH <1 PPM <5 PPM Ozone (O ) or other <0.002 PPM <0.005 PPM oxidants Nitrogen oxides (NO <0.05 PPM <0.1 PPM MITSUBISHI ELECTRIC 9900CX SERIES UPS...
  • Page 11 Note 2: Mean Value is defined as the average, long-term value Note 3: Maximum Value is defined as the maximum value occurring over a period of time of not more than 30 minutes per day MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 12: Table 1.2 Rating Of Bypass Input Circuit Breaker

    ▲ For other stored energy systems, refer to the attached supplement. WARNING 5 This UPS functions with lead acid batteries. If a ▲ is seen, review the supplemental materials for more information about the stored energy system used. MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 13: General

    UPS to power the critical load for a predetermined duration using the battery system. The 9900CX SERIES UPS is available in 1050, 1400, 1500, 1750, and 2100 kVA. These specifications are shown in Section 1.5.

  • Page 14: Definitions

    Bypass module, the 3～6 UPS modules, and the Cable Entry Section. UPS MODULE - The metal enclosure which contains the Converter / Inverter, Charger, and internal control systems required to provide specified AC power to a load. MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 15: Operation Overview

    Referring to Figure 1.1: Input AC power is converted to DC by the Converter. DC power is utilized to charge the UPS battery and to provide power to the Inverter. The Inverter converts the DC power to clean AC power to supply the critical load. MITSUBISHI ELECTRIC 9900CX SERIES UPS...
  • Page 16 UPS units. CAUTION: For the protection of the UPS and cables, the Bypass Input circuit breaker is field supplied, and field installed (see WARNING 4 on page 1-6). MITSUBISHI ELECTRIC 9900CX SERIES UPS...
  • Page 17 UPS system to the parallel bus. An overload causes the UPS to transfer to bypass without interrupting the critical load. In an MMS configuration, all the UPS units will transfer simultaneously to bypass operation. MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 18: Figure 1.3 Single Line Diagram-Emergency Operation

    The input power is restored, and the converter powers the critical load through the inverter and simultaneously recharges the batteries. A fully charged battery will provide power for the specified time at the rated load, or longer at a reduced load. MITSUBISHI ELECTRIC 9900CX SERIES UPS...
  • Page 19 When UPS power is restored after a full discharge, the UPS automatically restarts and transfers to inverter operation. (s)*: In the case of Parallel Operation A MMS UPS system automatically balances the load across all units independent of the operating mode. MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 20: Figure 1.4 Ups Parts Location

    1) UPS cabinet – Front View UPS Module LCD Touch Panel Bypass Module Monitor Display Cable Entry Section 2) Backside of Bypass Module door LCD Touch Panel Monitor Display Display PCB DPAU-89 Main PCB UPJR-D MITSUBISHI ELECTRIC 9900CX SERIES UPS...
  • Page 21 9900CX SERIES UPS Page Number: OWNERS / TECHNICAL MANUAL 1-15 3) UPS cabinet – Front Inside View CB1(left), 52C(right) External I/F PCB (Back Side of PCB Unit) IOAU-19 INPUT INPUT BYPASS INPUT OUTPUT INPUT MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 22: Specifications

    170.6 1750 BOTTOM / TOP 198.9 / 5050 35.4 / 900 80.5 / 2045 11770 / 5260 187.5 2100 BOTTOM / TOP 222.4 / 5650 35.5 / 902 80.7 / 2049 13530 / 6150 236.6 MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 23: Table 1.5 Detail Of Specifications

    Recommended : 30% ~ 90%. Altitude 0 to 6500 feet No Derating at 40° C Location Indoor, completely weather-protected Paint Color Munsell 5Y7/1 (Beige) ▲ For other stored energy systems, refer to the attached supplement. MITSUBISHI ELECTRIC 9900CX SERIES UPS...
  • Page 24 3600A / 550V FSU, FSV, FSW 500V (OPTION) Parallel control 3A / 600V FDU, FDV, FDW circuit fuse (optional) * Rating would be changed. ▲ For other stored energy systems, refer to the attached supplement. MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 25: Operation Controls And Indicators

    9900CX SERIES UPS OWNERS / TECHNICAL MANUAL 2.0 OPERATOR CONTROLS AND INDICATORS The 9900CX Series operator controls and indicators are located as follows (located on the exterior door of the Bypass Module): Figure 2.1 Operation/Display Panel (Front panel) MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 26: Led Display

    2.2 EPO (Emergency Power Off) BUTTON (7) The UPS EPO can be activated at the UPS or remotely using a dry contact. Activating the EPO will de-energize all equipment connected to the UPS output. MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 27: Liquid Crystal Display

    - Start: When the bypass voltage is abnormal, the LCD asks the operator if an interrupted transfer is acceptable. - Stop: When the bypass voltage is abnormal, the user cannot transfer from inverter to bypass line. MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 28: Figure 2.3(A) Start/Stop Operation

    Follow Start/Stop operation guidance accordingly. MEASUREMENT MENU (Figure 2.4) This screen shows details of measured Input and Output values. During Battery operation, “Remaining battery power” and “Run time” are also displayed. Figure 2.4(a) Input Values Figure 2.4(b) Output Values MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 29: Figure 2.5 Remote/Local Operation Or Date & Time Adjustment Select

    Press ▲ or ▼ button for page turning. Pressing the BATTERY LOG icon will display “Number of battery operations” and “Summed battery operation time.” Figure 2.6(a) Status Menu Figure 2.6(b) Event Log Figure 2.6(c) Battery Log MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 30: Figure 2.7(A) Main Screen (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 Discharge announcement is shown at the bottom of the screen. MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 31: Figure 2.8 Main Screen (Fault Indication)

    5 second intervals. Figure 2.9 Message Screen SILENCE ALARM (Figure 2.9) This circled icon will appear when a failure occurs. The audible alarm announcing the failure can be silenced by pressing this icon. MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 32: External Signal Terminal Block

    OUT3: BATTERY OPERATION OUT4: CONVERTER OPERATION OUT5: BATTERY LOW VOLTAGE OUT6: OVERLOAD OUT7: SPARE OUT8: TOTAL ALARM 52C CLOSE *1 Relay contactor (52C close): Normally Closed ▲ For other stored energy systems, refer to the attached supplement. MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 33: Figure 2.10(B) External Signal Terminal Block Tn11-14 (Nec Class2)

    IN1: REMOTE INVERTER START IN2: REMOTE INVERTER STOP (User supplied dry contact) IN3: BATTERY TEMP. HIGH IN4: POWER DEMAND REMOTE EPO Do not use ▲ For other stored energy systems, refer to the attached supplement. MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 34: Figure 2.11 Control Wiring For External Contacts

    Terminals 15 to 16 "Spare" contact (OUT7) Terminals 17 to 18 "Total Alarm" contact (OUT8) Activated during major fault, minor fault and alarm events. Terminals 19 to 20 "52C Close" contact Activated when the inverter output contactor 52C has closed. MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 35: Table 2.1 Selectable Items For Output Contacts

    LOAD ON BYPASS OUT1 LOAD ON AC BATTERY OPERATION OUT3 CONVERTER OPERATION OUT4 INVERTER OPERATION CB1 CLOSE CB2 CLOSE 52S CLOSE POWER DEMAND ON EQUALIZING CHARGE ANOTHER BUS SYNC.OK SPARE 29 SPARE 30 SPARE 31 MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 36: Figure 2.12 Remote "Start" Contact Connections

    Figure 2.12 Remote "Start" Contact Connections External to UPS Cabinet UPS Cabinet Relay Start Coil Start Switch Common 0.5s – 4s 12 VDC Use Momentary Relay Coil current : 16.7 mA Switches Only User supplied MITSUBISHI ELECTRIC 9900CX SERIES UPS...
  • Page 37 OFF when the contact is open. Terminals 33 to 34 "Remote EPO" contact input Used to perform a remote UPS Emergency Power Off (EPO). The load will be dropped. NOTE: Contact MITSUBISHI ELECTRIC POWER PRODUCTS, 1-800-887-7830 for Detailed information. MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 38: External Communications

    CAUTION: In all cases, a switch having a protective cover is recommended in order to reduce the possibility of accidental operation. EXTERNAL COMMUNICATIONS External communications are provided using Lookups. Refer to the Lookups technical manual U-ENM00017 for details. MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 39: Installation And Operation

    CAUTION: The floor shall be flat and level. 3 inches surrounding mounting holes shall be flush with maintenance pad or floor. 3.2 INSTALLATION PROCEDURE A) Note the load tolerance of the floor. Refer to Table 3.2 for list of UPS weights. MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 40: Procedure For Cable Connections

    Current Permitted (A) 1050 25,000 1400 25,000 1500 25,000 1750 25,000 2100 25,000 3.3 PROCEDURE FOR CABLE CONNECTIONS Identify the input/output power terminal blocks as shown in Figure 3.1. Connect the internal control wire and power wire. MITSUBISHI ELECTRIC 9900CX SERIES UPS...
  • Page 41 One (1) source feeding the UPS: (1) Confirm that an external input circuit breaker sized to protect both the AC input and the bypass line is installed (refer to the equipment nameplate for current ratings). Connect MITSUBISHI ELECTRIC 9900CX SERIES UPS...
  • Page 42 2.10 for functional description. A 2mm , or less, shielded conductor is recommended. CAUTION: UPS power terminals are supplied with stud type fittings. It is recommended that compression lugs be used to fasten all input/output power cables. MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 43: Table 3.4 Recommended Cable Sizes

    Table 3.5 Recommended Hardware Split Nut size Flat washer UPS Capacity Bolt size lockwasher size size 1050kVA M12 x 40mm 1400kVA M12 x 40mm 1500kVA M12 X 40mm 1750kVA M12 x 40mm 2100kVA M12 x 40mm MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 44: Table 3.6 Crimp Type Compression Lug

    Input Static Transfer Switch CONVERTER / INVERTER Terminals Terminals Output input CHARGER Terminals Battery UPS Module Cabinet CONVERTER / INVERTER 3 ～ 6 UPS CHARGER modules UPS Module CONVERTER / INVERTER CHARGER UPS Module CABINET MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 45: Figure 3.2 Diagram Of Input/Output Bus Bars And Terminal Blocks

    ※1. Signal lines should be separated to the main circuit cables with more than 100mm insulating distance. The wiring also should fix to the frame to ensure the insulating distance satisfied the condition. ※2. 3x 2-holes bases ※3. 4x 4-holse bases MITSUBISHI ELECTRIC 9900CX SERIES UPS...
  • Page 46 ▲ For other stored energy systems, refer to the attached supplement. DC circuit breaker External signal User supplied terminal IOAU-19 - [TN1] Auxiliary “ - ” Negative “ + ” Positive Power terminal User supplied UPS module Wall mounted DC breaker for Battery MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 47: Operating Procedures

    NOTE: When "REMOTE OPERATION MODE" is displayed on the LCD panel, the inverter start operation can only be performed remotely. If local inverter start operation is required, select "LOCAL ONLY" or “REMOTE & LOCAL” in the OPERATION MENU. MITSUBISHI ELECTRIC 9900CX SERIES UPS...
  • Page 48 De-energize all external sources of AC and DC power. Before removing covers, wait minutes after de-energizing, allowing the capacitors to discharge. Prior to servicing the UPS, verify all AC sources, DC sources, and Stored energy sources have been de-energized. MITSUBISHI ELECTRIC 9900CX SERIES UPS...
  • Page 49 NOTE: When "REMOTE OPERATION MODE" is displayed on the LCD panel, 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. MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 50: Response To Ups Failure

    Take necessary action according to display guidance. Primary Action When faults happen, contact the Authorized Mitsubishi Information to Service Center Electric Service Representatives or call Mitsubishi Electric at 1-800-887-7830. NOTE: Prior to contacting Mitsubishi Field service, record all error codes on the LCD screen, operation status, and UPS load condition.

  • Page 51: Parts Replacement

    9900CX SERIES UPS OWNERS / TECHNICAL MANUAL 5.0 PARTS REPLACEMENT Contact Mitsubishi Electric Power Products, Inc. or its authorized service representatives on all issues regarding the replacement of parts at 1-800-887-7830. A) Battery▲ Battery lifetime may vary according to the frequency of use and the average ambient operating temperature.

  • Page 52: Fault Codes

    A) Verify and record the occurrence of the alarm. Note details of the alarm message displayed on the LCD display panel. Contact Mitsubishi Electric Power Products, Inc. at 1-800-887-7830. B) If a circuit breaker has tripped, record the circuit breaker trip rating and dial settings. DO NOT reset the circuit breaker until the cause of the trip has been determined and corrected.

  • Page 53: Table 6.1 Bypass Module Fault Code List

    MODULE MINOR A power converter module has Intermittent UA862 SERVICE Minor FAULT detected a minor fault condition. sound ENGINEER CHECK A power converter module has INPUT Intermittent UA863 MOD.IN.VOLT. detected input voltage abnormal. POWER sound SOURCE MITSUBISHI ELECTRIC 9900CX SERIES UPS...
  • Page 54 Output voltage is out of the Intermittent UF254 O/P VOLTAGE ABNL. SERVICE Minor specified range. sound ENGINEER CALL Load transfer due to overload for Intermittent UF256 LOAD ABNORMAL SERVICE Minor over 4 times within 5 minutes. sound ENGINEER MITSUBISHI ELECTRIC 9900CX SERIES UPS...
  • Page 55 Power converter module #6 has Intermittent UF346 #6 MAJOR FAULT SERVICE Minor detected major fault condition. sound ENGINEER All Power converter modules CALL MODULE MAJOR Continuous UF349 have detected major fault SERVICE Major FAULT sound condition. ENGINEER MITSUBISHI ELECTRIC 9900CX SERIES UPS...
  • Page 56 ENGINEER CALL Contactor CB3 is not working Intermittent UF452 CB3 ABNORMAL SERVICE Minor properly. sound ENGINEER CALL STS TEMP. Intermittent UF453 L Thyristor temperature abnormal SERVICE Minor ABNOMAL sound ENGINEER MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 57: Table 6.2 Ups Module Fault Code List

    Major unbalance of the neutral point voltage. Major MF110 ZERO PHASE OC. Major unbalance of the neutral point voltage. Major MF111 CTRL.CIRCUIT ERR. Battery current unbalance. Major MF112 DC CIRCUIT ABNL. Sudden change of the DC voltage level. Major MITSUBISHI ELECTRIC 9900CX SERIES UPS...
  • Page 58 MF254 COOLING FAN ABNL. Thermal relay of cooling fan worked. Minor MF256 O/P VOLTAGE ABNL. Output voltage is out of the specified range. Minor MF301 CTRL.CIRCUIT ERR. AD reference has an abnormal value. Major MITSUBISHI ELECTRIC 9900CX SERIES UPS...
  • Page 59 #%2++ ---------------------- Inverter circuit failure #%3++ ---------------------- Control circuit failure #%4++ ---------------------- Bypass system failure #%8++ ---------------------- Alarm “#” Bypass Module “U”, UPS Module “M” “%” denotes either “A” or “F” “+” denotes any numeral from 0 to 9 MITSUBISHI ELECTRIC 9900CX SERIES UPS...

  • Page 60: Warranty Information

    For customers purchasing a new Uninterruptible Power Supply (UPS) from a Reseller, the Limited Warranty of your Uninterruptible Power Supply (UPS) was provided to the Reseller at the time of sale. Please contact Mitsubishi Electric Power Products Inc. immediately if formal documentation of the warranty transfer was not provided to you.

  • Page 61: Maintenance Contracts

    Page Number: 9900CX SERIES UPS OWNERS / TECHNICAL MANUAL 8.0 MAINTENANCE CONTRACTS information maintenance contracts other service offerings, please visit www.mitsubishicritical.com/services. MITSUBISHI ELECTRIC 9900CX SERIES UPS...

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