Mitsubishi Electric 9800A Owner Technical Manual
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Mitsubishi Electric 9800A Owner Technical Manual

9800a series uninterruptible power supply system
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MITSUBISHI
ELECTRIC
UNINTERRUPTIBLE POWER SUPPLY SYSTEM
MODEL
9800A SERIES
OWNERS / TECHNICAL MANUAL
(For parallel operation possible model only)

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Summary of Contents for Mitsubishi Electric 9800A

  • Page 1 MITSUBISHI ELECTRIC UNINTERRUPTIBLE POWER SUPPLY SYSTEM MODEL 9800A SERIES OWNERS / TECHNICAL MANUAL (For parallel operation possible model only)
  • Page 2 Preface Revision 3.03 Mar. 24, 08 ALN-H0776 MITSUBISHI ELECTRIC CORPORATION...

  • Page 3: Table Of Contents

    3.3 PROCEDURE FOR CABLE CONNECTIONS ........... 3-2 3.4 OPERATING PROCEDURES ..............3-24 4.0 RESPONSE TO UPS FAILURE ..............4-1 5.0 PARTS REPLACEMENT ................5-1 6.0 FAULT CODES ..................6-1 7.0 WARRANTY & OUT OF WARRANTY SERVICE ........7-1 MITSUBISHI ELECTRIC 9800A SERIES UPS...

  • Page 4: List Of Tables

    Table 3.2 List of UPS Weights (lb.)............... 3-1 Table 3.3 Maximum Permitted Fault Current..........3-2 Table 3.4 Recommended Cable Sizes ............3-5 Table 3.5 Crimp Type Compression Lug............3-6 Table 6.1 Fault Code ..................6-2 MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 5 Diagram of input/output bus bars and terminal blocks ......3-7 Figure 3.3 Diagram of Rectifier Cabinet & Inverter Cabinet Inter-connect ....3-19 Figure 3.4 Diagram of Power and Control Wire Connect (Parallel Connection) ..3-21 Figure 3.5 Operation Procedures: Start Up/Shut Down Procedure......3-24 MITSUBISHI ELECTRIC 9800A 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 and correspondence is required. Safety Recommendations: If any problems are encountered while following this manual, Mitsubishi field service group assistance and correspondence is recommended. MITSUBISHI ELECTRIC 9800A SERIES UPS...

  • Page 7: Introduction

    IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS This manual contains important instructions for the 9800A SERIES Uninterruptible Power Supply Systems that should be followed during installation and maintenance of the UPS and batteries. WARNING 1 Lethal voltages exist within the equipment during operation.

  • Page 8: Safety Precaution

     Equipment equivalent to the above **  Equipment to supervise or control airways, railways, roads, sea-lanes or other transportation.  Equipment in nuclear power plants.  Equipment to control communications.  Equipment equivalent/similar to the above mentioned. MITSUBISHI ELECTRIC 9800A SERIES UPS...

  • Page 9: Table 1.1 Ups Installation Environment

    No more than 0.1 PPM Nitrous acid gas (NO No more than 0.02 PPM Nitrous oxides (NO No more than 0.02 PPM Ozone (O No more than 0.002 PPM Hydrochloric acid mist (HCl) No more than 0.1 mg/m MITSUBISHI ELECTRIC 9800A SERIES UPS...

  • Page 10: Table 1.2 Rating Of Bypass Input Circuit Breaker

    AC input and AC output overcurrent protection and disconnect devices shall be field supplied and installed. The DC output breaker (MCCB) shall be field supplied and installed. The overcurrent protection device should be installed in the Battery cabinet and rated as indicated in TABLE 1.6. MITSUBISHI ELECTRIC 9800A SERIES UPS...

  • Page 11: General

    UPS. The UPS is simple to start-up, operate and maintain. The 9800A SERIES UPS is available in seven kVA sizes-100, 150, 225, 300, 375, 500 and 750kVA. Specifications for each kVA model appear in Section 1.5. The principles of operation described herein are applicable to all models.

  • Page 12: Definitions

    Maintenance or whenever the UPS is not completely operational. INPUT POWER - Power provided by the electrical utility company, or auxiliary generator, which is connected to the UPS for supplying the critical load. MITSUBISHI ELECTRIC 9800A SERIES UPS...

  • Page 13: Operation Overview

    In the event of a UPS module failure, the critical load power will be continually supplied and shared by all other system UPS. In the event of a load overcurrent, all system UPS will transfer to bypass without interruption to the critical load. MITSUBISHI ELECTRIC 9800A SERIES UPS...

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

    Bypass operation will occur In the event of a load overcurrent, with all system UPS transferring to bypass without interruption to the critical load. The internal control system determines the operation of the two paths, with the load powered from the inverter being the normal operation. MITSUBISHI ELECTRIC 9800A SERIES UPS...

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

    Inverter is automatically restarted without operator intervention. Load is automatically assumed by the inverter without operator intervention. The power drawn by the load is equally shared between all system UPS during battery operation. MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 16 3. External I/F circuit PCB IOAU-04 2. Grounding Bar FIGURE 1.4-b UPS Parts Location (300kVA,375kVA) UPS module FRONT VIEW 2. Grounding 3. External I/F circuit PCB IOAU-04 1.CPM AC capacitors Inverter Chopper unit Rectifier unit capacitors MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 17 OWNERS / TECHNICAL MANUAL FIGURE 1.4-c UPS Parts Location (500kVA) UPS module FRONT VIEW 2. Grounding Bar AC capacitors 1. CPM 3. External I/F circuit PCB IOAU-04 AC capacitors Rectifier Inverter unit Capacitors Chopper unit MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 18 OWNERS / TECHNICAL MANUAL FIGURE 1.4-d UPS Parts Location (750kVA) UPS module FRONT VIEW 3. External I/F AC capacitors circuit PCB 2. Grounding Bar IOAU-04 1. CPM AC capacitors Rectifier Capacitors unit Inverter Chopper unit MITSUBISHI ELECTRIC 9800A SERIES UPS...

  • Page 19: Figure 1.5 Ups Parts Location (Continued)

    REAR OF FRONT DOOR (Right side) SYNC.LED INVERTER INVERTER START STOP BOOT FAULT MAINTENANCE TEST SWITCH RESET SWITCH SWITCH FIGURE 1.6 External I/F circuit PCB IOAU-04 3. External contact signal terminal IOAU-04 4. RS232C D-sub connector MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 20 Authorized Service Engineer). “BOOT” switch (FOR SERVICE PERSONNEL ONLY) - This switch boots the processor in the main control circuit resulting from alarm conditions. (Do not operate this switch while inverter and converter are in operation). MITSUBISHI ELECTRIC 9800A SERIES UPS...

  • Page 21: Specifications

    76.8 / 1950 37.7 / 958 79.7 / 2025 4916 / 2230 114.2 / 2900 37.7 / 958 79.7 / 2025 6923 / 3140 129.9 / 3300 49.5 / 1258 79.7 / 2025 9193 / 4170 MITSUBISHI ELECTRIC 9800A SERIES UPS...

  • Page 22: Table 1.5 Detail Of Specifications

    Recommended : 68ﾟF to 86ﾟF ( 20ﾟC to 30ﾟC) Relative Humidity 5% ~ 95% Non Condensing Altitude 0 to 9000 feet No Derating Location Indoor (free from corrosive gases and dust) Paint Color Munsell 5Y7/1 (Beige) MITSUBISHI ELECTRIC 9800A SERIES UPS...

  • Page 23: Table 1.6 Rating Of Contactor And Fuses

    Bypass input ZNR fuse 5A- 500V FBS1, 2, 3 Control power fuse 10A-600V FZR1, 2, 3 AC input ZNR fuse 5A- 500V Parallel control FPU, FPV, FPW 3A- 600V circuit fuse *Rating would be changed. MITSUBISHI ELECTRIC 9800A SERIES UPS...

  • Page 24: Operation Controls And Indicators

    MITSUBISHI 9800A SERIES UPS ELECTRIC OWNERS / TECHNICAL MANUAL 2.0 OPERATOR CONTROLS AND INDICATORS The 9800A Series operator controls and indicators are located as follows: Circuit breakers and contactors: Inside the module UPS status indicators: Outside of front door FIGURE 2.1 Operation/Display Panel (Front panel)

  • Page 25: 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 9800A SERIES UPS...

  • Page 26: 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). (FIGURE 2.5) -Stop: When the bypass voltage is abnormal, the user cannot transfer from inverter to bypass line. MITSUBISHI ELECTRIC 9800A SERIES UPS...

  • Page 27: Figure 2.3 Start/Stop Screen

    B) MEASUREMENT MENU (FIGURE 2.6) This screen shows details of measured values. Bypass voltage, input voltage, output line to line voltage and output frequency are displayed. Output currents are displayed as RMS values. FIGURE 2.6 Measurement screen 540V MITSUBISHI ELECTRIC 9800A SERIES UPS...

  • Page 28: Figure 2.7 Setup Screen

    This menu shows operation / failure and battery discharge records. FIGURE 2.8 Log select screen 1.) Event log (FIGURE 2.9) Operation and failure records are indicated. Maximum of 50 events are displayed. FIGURE 2.9 Event log screen MITSUBISHI ELECTRIC 9800A SERIES UPS...

  • Page 29: Figure 2.10 Battery Log Screen

    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 9800A SERIES UPS...

  • Page 30: Figure 2.14 Message Screen

    5 second intervals. FIGURE 2.14 Message screen Silence alarm This key will appear when a failure occurs. The audible alarm (announcing the failure) can be silenced by pressing this key. MITSUBISHI ELECTRIC 9800A SERIES UPS...

  • Page 31: External Signal Terminal Block

    FIGURE 2.15-1 External Signal Terminal Block (NEC Class2) FAULT OUT1: LOAD ON BYPASS OUT2: LOAD ON INVERTER OUT3: BATTERY OPERATION OUT4: RECTIFIER OPERATION OUT5: BATTERY LOW VOLTAGE OUT6: OVERLOAD OUT7: SPARE OUT8: SPARE OUT9: TOTAL ALARM MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 32 IN3: BATTERY TEMP. HIGH IN4: POWER DEMAND IN5: SPARE (User supplied dry contact) IN6: SPARE IN7: SPARE IN8: SPARE IN9: SPARE REMOTE EPO CB2 UVT (User supplied dry contact) CB2 AX 52L AX 52C AX MITSUBISHI ELECTRIC 9800A SERIES UPS...

  • Page 33: Figure 2.16 Control Wiring For External Contacts

    Activated when an overload has occurred to the system. Terminals 29 through 36 "Spare" contact (OUT7 and OUT8) Terminals 37 to 38, 39 to 40 "Total Alarm" contact (OUT9) Activated when an alarm has output to the system. MITSUBISHI ELECTRIC 9800A SERIES UPS...

  • Page 34: Figure 2.17 Remote "Start" Contact Connections

    Terminals 5 to 6 "Battery Temp. High" contact input (IN3) Input fed by a thermocouple that monitors battery temperature. The converter float voltage level is reduced for battery over-temperature conditions. External thermocouple is user supplied MITSUBISHI ELECTRIC 9800A SERIES UPS...

  • Page 35: External Communication Connector

    Pin 7. : Not used Pin 8. : Not used Pin 9. : Not used PCB IOAU-04 * Consult MITSUBISHI ELECTRIC POWER PRODUCTS, INC for details on “ DiamondLink ” monitoring software and its capabilities. MITSUBISHI ELECTRIC 9800A SERIES UPS...

  • Page 36: Installation And Operation

    600 mm (for air flow) C) Space requirement for routine maintenance Allow for the following space at the time of installation. Front 1000 mm 100kVA, 150kVA, 225kVA 1075 mm 300kVA, 375kVA, 500kVA, 750kVA Sides 0.0 mm Rear 0.0 mm MITSUBISHI ELECTRIC 9800A SERIES UPS...

  • Page 37: Procedure For Cable Connections

    From user’s distribution panel 1. X1 (A-phase) to A bus bar in UPS rectifier section. 2. X2 (B-phase) to B bus bar in UPS rectifier section. 3. X3 (C-phase) to C bus bar in UPS rectifier section. MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 38 (2) Using adequately sized conductors and referring to the appropriate figure identified in Figures 3.2-a~g, connect jumper bypass terminals A40, B40, C40 to rectifier input power terminals A, B, C as identified in Figures 3.2-a~g. MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 39 Parallel configuration Wiring (Refer to Figure 3.4a~c ) Critical Load Cabinet (CLC) TB1 to UPS-n IOAU-04,TN2. - Parallel Control CN92, CN93, In, Out cables between UPS modules b.) Power wire connection From UPS AC Output Terminals to CLC (Refer to Figure 3.4a~c) MITSUBISHI ELECTRIC 9800A SERIES UPS...

  • Page 40: Table 3.4 Recommended Cable Sizes

    *2 - Voltage drop across power cables not to exceed 2% of nominal source voltage. *3 - Allowable ampere-capacities based on 90 degree C insulation at ambient temperature of 30 degree C. Not more than 3 conductors in a raceway without de-rating. Note: Copper conductors assumed. MITSUBISHI ELECTRIC 9800A SERIES UPS...

  • Page 41: Table 3.5 Crimp Type Compression Lug

    FIGURE 3.1 UPS Terminal Designation AC Bypass Input Static Transfer Terminals: Switch A40,B40,C40,N40 AC input Output Terminals: A, B, C Terminals: A50,B50,C50, Terminals: BP,BN Battery cabinet UPS Module MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 42 225kVA : 55.1” (1400mm) UPS module UPS module N40,N50 Battery External Input wiring block BN,BP Input A,B,C DC Input BN BP Bypass AC Input Bypass Input AC Output Input Output A40 B40 C40 A50 B50 C50 A40,B40,C40 A50,B50,C50 MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 43 FIGURE 3.2-a-2 Diagram of Power Wire & Control Wire Inter-Connect (100kVA, 150kVA, 225kVA UPS, Input voltage 480Vac) DC circuit breaker External signal terminal IOAU-04 – [TN2] Auxiliary “-“ Negative “+”P ositive User supplied User supplied Wall mounted DC breaker UPS module MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 44 UPS module cabinet Input H1,H2,H3 AC Input H1 H2 H3 N40,N50 Battery External Input wiring block BN,BP DC Input BN BP AC Output Bypass Input A50 B50 C50 Bypass A40 B40 C40 Input Output A40,B40,C40 A50,B50,C50 MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 45 IOAU-04 – [TN2] Auxiliary User supplied Negative ositive “-“ “+”P X1 X2 X3 H1 H2 H3 Input transformer User supplied User supplied Input Cabinet Wall mounted DC breaker Wall mounted DC breaker UPS module UPS module MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 46 A40 B40 C40 BN BP A50 B50 C50 76.8” (1950mm) External wiring block Input Battery A,B,C Input BN,BP Bypass Output Input A50,B50,C50 A40,B40,C40 UPS module UPS module UPS Power Terminals use 1/2” (12mm) Diameter bolts. MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 47 FIGURE 3.2-c-2 Diagram of Power Wire & Control Wire Inter-Connect (300kVA, 375kVA UPS, Input voltage 480Vac) User supplied User supplied DC circuit breaker External signal terminal IOAU-04 – [TN2] Auxiliary Wall mounted DC breaker UPS module MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 48 Input cabinet AC Input Battery H1 H2 H3 External Input wiring block BN,BP Output AC Input Bypass A50,B50,C50 H1,H2,H3 Input A40,B40,C40 UPS module UPS module Input cabinet UPS Power Terminals use 1/2” (12mm) Diameter bolts. MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 49 FIGURE 3.2-d-2 Diagram of Power Wire & Control Wire Inter-Connect (300kVA, 375kVA UPS, Input voltage 600Vac) User supplied User supplied User supplied X1 X2 X3 H1 H2 H3 Input transformer DC circuit breaker External signal terminal IOAU-04 – [TN2] Auxiliary Input Cabinet Wall mounted DC breaker UPS module MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 50 AC Output DC Input AC Input BN BP Bypass Input Battery AC Output Input A50,B50,C50 BN,BP Bypass Input AC Input A40,B40,C40 A,B,C UPS module UPS module UPS Power Terminals use 1/2” (12mm) Diameter bolts. MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 51 FIGURE 3.2-e-2 Diagram of Power Wire & Control Wire Inter-Connect (500kVA, 750kVA UPS, Input voltage 480Vac) User supplied User supplied DC circuit breaker External signal terminal IOAU-04 – [TN2] Auxiliary Floor mounted DC breaker UPS module MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 52 BN BP Bypass Battery AC Output Input AC Input Input A50,B50,C50 BN,BP H1 H2 H3 Bypass Input A40,B40,C40 AC Input H1,H2,H3 UPS module Input cabinet UPS module UPS Power Terminals use 1/2” (13mm) Diameter bolts. MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 53 FIGURE 3.2-f-2 Diagram of Power Wire & Control Wire Inter-Connect (500kVA, 750kVA UPS, Input voltage 600Vac) User supplied User supplied User supplied X1 X2 X3 H1 H2 H3 DC circuit breaker Input transformer External signal terminal IOAU-04 – [TN2] Auxiliary Input Cabinet Floor mounted DC breaker UPS module MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 54 OWNERS / TECHNICAL MANUAL FIGURE 3.3-a Diagram of Rectifier Cabinet & Inverter Cabinet Inter-Connect 1 (500kVA, 750kVA UPS) 750kVA Bus Bar Bus Bar DC Capacitor DC Capacitor Inverter Cabinet Rectifier Cabinet Inverter Cabinet Rectifier Cabinet MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 55 FIGURE 3.3-b Diagram of Rectifier Cabinet & Inverter Cabinet Inter-Connect 2 (500kVA, 750kVA UPS) Ground Bus Bar Ground Bus Bar ① CON2 ② CON1 ① ② CN13 CON3 RYER-* CON5 CN11 ③ ③ Wiring route Rectifier Cabinet Inverter Cabinet MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 56 Bypass input 52L 2 Converter Inverter AC output AC input ACL 2 Battery UPS-n *1 Bypass Bypass input 52L n Converter Inverter AC output AC input ACL n *1 *1 n : Maximum = 8 Battery MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 57 FIGURE 3.4-b Diagram of Power Wire & Control Wire Connect ( Parallel connection ) UPS-1 UPS-2 Critical Load Cabinet CN92 CN92 CN93 CN93 IOAU-04 52L1-AX 52L2-AX IOAU-04 AC Output UPS-1 AC Output N40/N50 UPS-2 AC Output AC Output N40/N50 MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 58 UPS-(n-1)CN92 UPS-3 OUT UPS-(n-1) IN UPS-n AC Output AC Output AC Output *1 n : Maximum = 8 *2 Return from the last UPS module to the first UPS module (continuous loop). N40/N50 N40/N50 N40/N50 MITSUBISHI ELECTRIC 9800A SERIES UPS...

  • Page 59: Operating Procedures

    5. On the LCD panel, select “START/STOP MENU” and press the “START” key. 6. The Inverter will start within 5 seconds. Start up is complete. FIGURE 3.5-a Start-up Procedure Press both keys in order 540V MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 60 Breaker (user supplied) manually. 6. If turning off all power to the critical load is desired, open the External Bypass Input Circuit Breaker (user supplied) manually. FIGURE 3.5-b Shut-down Procedure Press both keys in order 540V MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 61 If local inverter start or stop operation is required (at the UPS), select "LOCAL" in "Remote/Local" selection in setup page. Select “LOCAL” mode for the purpose of this stop procedure. MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 62 CLC LCD “System Bypass Operation Screens” if available or by starting each Individual UPS from UPS LCD, select “START/STOP MENU” and press “START” key. 4. After all UPS are ready to transfer to inverter all UPSs will simultaneously transfer from internal bypass to inverter. MITSUBISHI ELECTRIC 9800A SERIES UPS...

  • Page 63: 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 to Mitsubishi field service group. MITSUBISHI ELECTRIC 9800A SERIES UPS...

  • Page 64: Parts Replacement

    ELECTRIC 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. A) Battery Battery lifetime may vary according to the frequency of use and the average ambient operating temperature.

  • Page 65: Fault Codes

    A) Verify and record the occurrence of the alarm. Note details of alarm message displayed on the LCD display panel. Contact Mitsubishi Electric Power Products, Inc. at 1-800-887-7830. B) If a circuit breaker (MCCB) has tripped, depress the toggle to reset the breaker before closing it again.

  • Page 66: Table 6.1 Fault Code

    UF162 BATTERY ABNORMAL Minor Flicker battery self test. ENGINEER BATTERY VOLTAGE CALL SERVICE UF163 Battery voltage abnormality Minor Flicker ABNORMAL ENGINEER GATE FAULT IGBT module (Chopper) CALL SERVICE UF165 Major Lit on (CHOPPER) damaged ENGINEER MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 67 Major Lit on ERROR abnormality ENGINEER UPS CONTROL CIRCUIT Control microcomputer CALL SERVICE UF303 Major Lit on ERROR abnormality ENGINEER UPS CONTROL CIRCUIT CALL SERVICE UF304 Parallel control circuit abnormality Major Lit on ERROR ENGINEER MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 68 Phase rotation is inverted when CHECK UA813 Alarm ROTATION ERROR bypass voltage is normal BYPASS INPUT Bypass frequency fell out of BYPASS FREQUENCY CHECK UA814 inverter synchronization follow-up Alarm OUT OF RANGE BYPASS INPUT range MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 69 INV. STOPPED operation CONVERTER OPE. Converter operation interlock UA841 Alarm PROHIBITION applied OUTPUT CIRCUIT Load bus voltage sensor UA842 Alarm ABNORMAL abnormality #1: Output circuit may be shorted. #2: Check the CB3 and Bypass Thyristors. MITSUBISHI ELECTRIC 9800A SERIES UPS...
  • Page 70 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 9800A SERIES UPS...

  • Page 71: Warranty & Out Of Warranty Service

    Mitsubishi Electric Power Products, Inc. at (724) 772-2555. To register your UPS for warranty purposes, please complete the warranty registration form and fax it to the Mitsubishi Electric UPS Division Service Department fax line shown on the registration form. (Next page) For warranty purposes, it is essential that any and all service work that may be required on your Mitsubishi brand UPS equipment is performed by a Mitsubishi Electric Authorized Service Center.
  • Page 72 __ Municipals news? __ Commercial Business __ Federal/State/Local __Yes __ No __ Electrical Contractor __ Communications __ Healthcare __ Distributors/Reps __ Internet __ Other __________________ After Start-Up has been done Fax completed Form to: (724) 778-3146 MITSUBISHI ELECTRIC 9800A SERIES UPS...

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