Mitsubishi Electric 9900D Series Owner Technical Manual Download Page 1

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UNINTERRUPTIBLE POWER SUPPLY SYSTEM

MODEL

9900D SERIES

OWNER’S / TECHNICAL MANUAL
(Inclusive Parallel Operation System Application)

UNINTERRUPTED

Peace of Mind

Summary of Contents for 9900D Series

Page 1: ...UNINTERRUPTIBLE POWER SUPPLY SYSTEM MODEL 9900D SERIES OWNER S TECHNICAL MANUAL Inclusive Parallel Operation System Application UNINTERRUPTED Peace of Mind ...

Page 2: ...Preface Revision 1 6 22 2020 U ENM00055 ...

Page 3: ...TORS 2 1 2 1 LED DISPLAY 2 2 2 2 EPO BUTTON 2 2 2 3 LIQUID CRYSTAL DISPLAY 2 2 2 4 EXTERNAL SIGNAL TERMINAL BLOCK 2 8 2 5 EXTERNAL COMMUNICATION CONNECTOR 2 15 3 0 INSTALLATION AND STORAGE 3 1 3 1 STORAGE AND HANDLING 3 1 3 2 INSTALLATION PROCEDURE 3 2 3 3 PROCEDURE FOR CABLE CONNECTIONS 3 6 3 4 CONNECTION OF BATTERY UVR SIGNAL 3 15 4 0 OPERATING PROCEDURES 4 1 5 0 RESPONSE TO UPS FAILURE 5 1 6 0 ...

Page 4: ...il of Specifications 1 14 Table 1 6 Rating of Contactors Breakers and Fuses 1 15 Table 2 1 Selectable Items for Output Contacts 2 11 Table 2 2 Selectable Items for Input Contacts 2 14 Table 3 1 List of UPS Weights 3 4 Table 3 2 Maximum Permitted Fault Current 3 5 Table 3 3 Recommended Cable Sizes 3 8 Table 3 4 Recommended Hardware 3 8 Table 3 5 Crimp Type Compression Lug 3 9 Table 7 1 Bypass Modul...

Page 5: ...l Signal Terminal Block TN21 25 NEC Class2 2 8 Figure 2 10 b External Signal Terminal Block TN11 14 NEC Class2 2 9 Figure 2 11 Control Wiring for External Contacts 2 10 Figure 2 12 Remote Start Contact Connections 2 12 Figure 2 13 External Communication Connector 2 15 Figure 3 1 Forklift Lifting Side 3 1 Figure 3 2 Side that cannot be Lifted 3 1 Figure 3 3 UPS Center of Gravity Markers 3 2 Figure ...

Page 6: ...tions that can result in personal injury or death if not avoided Caution A caution symbol shows potentially hazardous situations or conditions which can result in personal injury or equipment damage if not avoided Note A Note symbol shows the information the user or the service personnel should observe during UPS operation or service work Prohibit A prohibit symbol shows the act the user or the se...

Page 7: ...MITSUBISHI ELECTRIC 9900D SERIES UPS 9900D SERIES UPS OWNERS TECHNICAL MANUAL Page Number v NOTE FAILURE TO FOLLOW MANUAL INSTRUCTIONS VOIDS WARRENTY AND MAY AFFECT OPERATION ...

Page 8: ...escriptions required to operate the UPS Please read this manual carefully and retain it for future reference This manual contains important instructions for the 9900D SERIES Uninterruptible Power Supply System that should be followed during installation and maintenance of the UPS and batteries Lethal voltages exist within the equipment during operation Observe all warning and cautions in this manu...

Page 9: ...e UPS will rise and consequently a fire may be caused due to liquid leakage from batteries short circuits or parts deterioration PRECAUTIONS FOR WIRING CAUTION Ask professional agents for wiring work Inappropriate wiring work may cause electric shocks injuries or fire PRECAUTIONS TO PROFESSIONAL AGENTS CAUTION Use wiring conduit pits or racks for input output wiring Inadvertent wiring may cause in...

Page 10: ... or oil Keep the battery away from flexible vinyl materials g Since the electric energy remains in the used batteries treat them carefully to prevent sparks and short circuits APPLICATION CAUTION If the UPS System is to be applied 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 2 Special c...

Page 11: ...een 5 and 95 There must be no condensation due to temperature changes 4 Altitude This equipment must not be applied at altitude that exceeds 1980m 6500ft above sea level 5 Dust Dust in the room where the UPS is installed must not exceed normal atmospheric dust levels In particular that dust should not include iron particles oils or fats or organic materials such as silicone 6 Inflammable gas follo...

Page 12: ...e installed in the Battery cabinet and rated as indicated in Table 1 6 1 2 GENERAL The Mitsubishi 9900D SERIES UPS is designed to provide continuous and clean electrical power to a critical load Additionally the UPS monitors power conditions affecting the load In the event of an input power failure the UPS will supply power to the critical load for the specified battery time If the input power is ...

Page 13: ...er required by the critical load CHARGER The UPS components which contain the equipment and controls necessary to regulate DC power required for battery charging and for supplying power to the Inverter BYPASS MODULE The metal enclosure which contains the Bypass line the Static transfer switch UPS operator controls and internal control systems BYPASS LINE The line which conducts electricity directl...

Page 14: ...ion Load powered by UPS inverter During normal operation the path through the UPS inverters is used to power the load 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 Bypass Module CB3 CONVERTER INVERTER CHARG...

Page 15: ... Bypass Operation Load Power supplied through UPS internal static bypass line Figure 1 2 Single Line Diagram Bypass Operation Load fed through static bypass line Referring to Figure 1 2 The Internal Bypass line is a Hard wired line through 52S which supplies the critical load with unconditioned bypass input power Upon switching to the Internal Bypass line Bypass Module CB3 CONVERTER INVERTER CHARG...

Page 16: ...ing Start up before the system is fully operational Each UPS internal static bypass line will equally share the power supplied to the critical load in the Parallel Operation if a cable length of bypass line is equal each other For a MMS unable to equalize the cable length additional rectors should be installed to compensate the difference in cable impedance In the event of a load overcurrent the U...

Page 17: ...The battery capacity expires and the inverter turns off or b Input power is restored after which the converter will power the inverter and critical load and simultaneously recharge the batteries 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 Bypass Module CB3 CONVERTER INVERTER CHARGER 52C Stat...

Page 18: ...ithout operator intervention Load is automatically assumed by the inverter without operator intervention s In the case of the Parallel Operation The power drawn by the load is equally shared between all UPS regardless of the presence or absence of the UPS that is are in battery operation or not whenever the system is in the Parallel Operation Figure 1 4 UPS Parts Location 1 UPS cabinet Front View ...

Page 19: ...age Number 1 12 2 Backside of Bypass Module door 3 UPS cabinet Front Inside View Pass DC INPUT 52S CB3 DC INPUT AC INPUT BYPASS INPUT AC OUTPUT External I F PCB IOAU 19 CB2 LCD Touch Panel Monitor Display CB1 left 52C right Back Side of PCB Unit Display PCB DPAU 89 Main PCB UPJR D ...

Page 20: ... phase 3 wire 1200kVA 1200kW 480V 480V 480V 1250kVA 1250kW 480V 480V 480V 1500kVA 1500kW 480V 480V 480V 1600kVA 1600kW 480V 480V 480V 2000kVA 2000kW 480V 480V 480V Table 1 4 UPS Cabinet Information UPS kVA Cable Entry Width in mm Depth in mm Height in mm Weight lb kg Heat Loss kBTU h 1200 BOTTOM TOP 133 9 3400 35 4 900 80 7 2050 7270 3300 135 4 1250 BOTTOM TOP 133 9 3400 35 4 900 80 7 2050 7270 33...

Page 21: ... 0 8 leading Voltage THD 2 maximum THD at 100 Linear Load 5 maximum THD at 100 non linear load Transient Response 5 maximum at 100 load step 1 maximum at loss return of AC power 5 maximum at load transfer to from static bypass Transient Recovery Less than 20ms Voltage Unbalance 2 maximum at 100 unbalanced load Phase Displacement 1deg maximum at 100 load Inverter Overload 125 for 10 minutes 150 for...

Page 22: ...ass contactor 1992A 2843A 88RC Control circuit contactor 20A Breakers User supply Battery disconnect breaker Recommended 3000A 3000A 4000A 4000A 5000A User supply AC input breaker Recommended 1600A 1600A 2000A 2500A 3000A User supply Bypass input breaker Recommended 1600A 1600A 2000A 2000A 2500A FP FC FN DC fuse 315A 690V FBP FBN DC fuse 1250A 690V FBR1 FBR2 FBR3 FBR FBS FBT FBO1 FBO2 FBO3 Control...

Page 23: ...PS OWNERS TECHNICAL MANUAL Page Number 2 1 2 0 OPERATOR CONTROLS AND INDICATORS The 9900D Series operator controls and indicators are located as follows Bypass Module door exterior Figure 2 1 Operation Display Panel Front panel 9900D UPS 8 3 2 1 7 4 5 6 ...

Page 24: ...rmittent or constant tones Illuminates when an error occurs in the system In this case the details of the error are indicated on the display panel 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 2 3 LIQUID CRYSTAL D...

Page 25: ...tart Stop operation for the UPS system If this operation is PIN protected the user is required to enter the security PIN before the screen can be accessed When in remote mode the message REMOTE operating mode will appear on this Screen The user cannot operate the start and stop functions without changing the setup from remote mode to local mode When bypass voltage is abnormal the message Bypass vo...

Page 26: ...PS Module Stop TRANSFER TO INVERTER SMS Output Transfer from Bypass Line to Inverter TRANSFER TO BYPASS SMS Output Transfer from Inverter to Bypass Line Figure 2 3 c Transfer to Inverter Figure 2 3 d Stop Operation Follow Start Stop operation guidance accordingly B MEASUREMENT MENU Figure 2 4 This screen shows details of measured values Input and Output values are displayed Figure 2 4 a Input Valu...

Page 27: ...ing charge operation key will appear when battery equalizing charge is set up Setup is based on battery type Figure 2 5 Remote Local Operation or Date Time Adjustment Select D LOG MENU Figure 2 6 This LOG MENU displays two Touch icons in EVENT LOG and BATTERY LOG Pressing the EVENT LOG icon up to 100 condition operation records will be displayed Press or button for page turning Pressing the BATTER...

Page 28: ...ry life Figure 2 7 Main Screen Battery Operation The LCD will display a battery low voltage message when the battery capacity is near depletion The End of Battery Discharge announcement is displayed when the battery end voltage is reached At this time the inverter will perform an electronic shutdown to prevent battery loss of life from extreme deep discharge conditions When the input power is rest...

Page 29: ...n menu is pressed 1 MESSAGE Figure 2 9 The display shows a fault code the description of the fault and a guidance of what action is to be taken by the user A maximum of 10 faults is displayed at one time If an input power failure occurs during a fault condition the fault indication and input power failure announcement are alternatively displayed at 5 second intervals Figure 2 9 Message screen 2 SI...

Page 30: ... output port presented OUT1 to OUT8 are user programmable but are factory default set being also shown in Figure 2 10 Adding same external I F PCB IOAU 19 doubling signal outputs is applicable for OUT1 to OUT8 Figure 2 10 a External Signal Terminal Block TN21 25 NEC Class2 TN21 25 Summary Alarm OUT2 LOAD ON INVERTER OUT3 BATTERY OPERATION OUT4 CONVERTER OPERATION OUT5 BATTERY LOW VOLTAGE OUT6 OVER...

Page 31: ...10 b External Signal Terminal Block TN11 14 NEC Class2 TN11 14 User supplied dry contact IN3 BATTERY TEMP HIGH IN1 REMOTE INVERTER START IN2 REMOTE INVERTER STOP REMOTE EPO IN4 POWER DEMAND CB2 AX 52L AX 21 23 25 27 29 35 33 31 22 24 26 28 30 36 34 32 Battery Breaker Panel Load Circuit Switch Not use UPS ...

Page 32: ...to 2 Summary Alarm contact Activated when a major fault has occurred with the system Terminals 3 to 4 Load on Bypass contact OUT1 Activated when the power is supplied from the static bypass input Terminals 5 to 6 Load on Inverter contact OUT2 Activated when the power is supplied by the inverter Terminals 7 to 8 Battery Operation contact OUT3 Activated when the battery is operating following an AC ...

Page 33: ...t Contacts No Output Item Default 0 NONE 1 TOTAL ALARM OUT8 2 MINOR FAULT 3 ALARM 4 AC INPUT ABNORMAL 5 BYPASS ABNORMAL 6 BATTERY ABNORMAL 7 BATTERY LOW VOL 1 8 BATTERY LOW VOL 2 OUT5 9 BATTERY DEPLETION 10 OVERLOAD OUT6 11 OVERLOAD PREALARM 12 FAULT GROUP 1 13 FAULT GROUP 2 14 BYPS SYNCHRONOUS 15 BYPS ASYNCHRONOUS 16 REMOTE OPE ENABLE 17 LOAD ON INVERTER OUT2 18 LOAD ON BYPASS OUT1 19 LOAD ON AC ...

Page 34: ...ages to remote access input terminals Damage to UPS may result Refer to Figure 2 12 for a typical wiring configuration Although this figure applies to the remote start stop terminals the same wiring arrangement is used for emergency stop power demand and battery temperature high Figure 2 12 Remote Start Contact Connections Start Relay Coil current 16 7mA Use Momentary Switches Only UPS Cabinet Ext...

Page 35: ...be programmed for remote operation Refer to Operations Menu for procedure Terminals 29 to 30 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 Terminals 31 to 32 Power Demand Command contact input IN4 This contact is used to con...

Page 36: ... TEMP ABNORMAL IN3 7 GENERATOR OPERATION 8 ASYNCHRONOUS 9 ANOTHER BUS SYNC 10 REMOTE INVERTER MMS 11 REMOTE BYPASS MMS 12 EXT BYP dV STR 13 USE IB LIMIT 2 14 CHARGER STOP 15 EXTERNAL ALARM 16 CB2 EX 17 CHARGE DEVICE ERR 18 CONVERTER OPE PROHIBITION 19 REMOTE MOD START 20 REMOTE MOD STOP 21 SPARE 21 22 SPARE 22 23 SPARE 23 24 SPARE 24 25 SPARE 25 26 SPARE 26 27 SPARE 27 28 SPARE 28 29 SPARE 29 30 S...

Page 37: ...ctor is shown in Figure 2 13 Figure 2 13 External Communication Connector NEC Class2 Pin 1 Not used Pin 2 RXD Receive data Pin 3 TXD Transmit data Pin 4 Not used Pin 5 GND Signal ground Pin 6 Not used Pin 7 Not used Pin 8 Not used Pin 9 Not used Consult MITSUBISHI ELECTRIC POWER PRODUCTS INC for details on DiamondLink monitoring software and its capabilities D SUB 9Pin male PCB IOAU 19 1 2 3 4 5 6...

Page 38: ...ting lug locations UPS cabinets shall only be lifted with a forklift or pallet jack of sufficient lifting capacity from the sides stated on the shipping box Refer to Figure 3 1 and Figure 3 2 Figure 3 1 Statement on the sides of the shipping box that can be lifted with a forklift Figure 3 2 Statement on the sides of the shipping box that cannot be lifted with a forklift The center of gravity will ...

Page 39: ...anty Do not transport or lift UPS modules when they are completely or partially assembled with other UPS modules Units shall be handled by their individual shipping sections Do not drop UPS cabinets 3 2 INSTALLATION PROCEDURE Cleaning of unit before and after installation shall be done only by authorized MEPPI personnel FOUNDATION REQUIREMENTS A level and rigid foundation is essential to minimize ...

Page 40: ...each cabinet and any gaps between cabinet sides shall not exceed 1 8 inch Refer to Figure 3 1 for appropriate alignment Figure 3 4 Examples of acceptable and unacceptable alignment CABINET LEVEL All cabinets shall be level as measured left to right front to back and in any diagonal direction on the top of each cabinet This should be verified across 4 foot minimum measurements The front side of eac...

Page 41: ...on If the feeler gauge can be inserted steel shims shall be inserted within 2 inches of each side of every base channel mounting hole to maintain contact between the cabinet and foundation at all points Refer to Figure 3 5 for shim contact around the mounting holes on the base channel Figure 3 5 Shim contact around mounting holes on the base channel Bottom View STEEL SHIMS Use smallest number of s...

Page 42: ...0 0 mm 0 inch Back side 0 0 mm 0 inch Top side 610 mm 24 inches EXTERNAL BATTERY SUPPLY Please refer to the following when installing and maintaining batteries 1 The customer shall refer to the battery manufacturer s installation manual for battery installation and maintenance instructions 2 The maximum permitted fault current from the remote battery supply and the DC voltage rating of the battery...

Page 43: ...ion meter check that the phase rotation of the AC Input power terminals A B and C as well as the Bypass Input power terminals A40 B40 and C40 are correct The proper phase rotation is clockwise A B C 3 Connect the grounding conductor from the input service entrance to the UPS Grounding Bar E 4 Two 2 sources feeding the UPS 1 Connect the AC input power cables from the input service entrance to the A...

Page 44: ...jumper bypass terminals A40 B40 C40 to AC input power terminals A B C as identified in Figures 3 6 to 3 7 3 Connect the external signal terminal block as desired Refer to section 2 4 and Figure 2 10 for functional description 14 AWG or less shielded conductor is recommended It is recommended that compression lugs be used to fasten all input output power cables 6 Procedure for Cable Connections for...

Page 45: ...0MCM 7 x 500MCM 11 x 500MCM 1600kVA 480V 480V 7 x 500MCM 7 x 500MCM 7 x 500MCM 11 x 500MCM 2000kVA 480V 480V 9 x 500MCM 8 x 500MCM 8 x 500MCM 14 x 500MCM 1 Use 75 degree C copper wire 2 The cables shall be selected to be equal or larger to the sizes listed in the table 3 Voltage drop across power cables not to exceed 2 of nominal source voltage 4 Allowable ampere capacities based on copper conduct...

Page 46: ...Y ILSCO BURNDY YA32 CRA 400L YA36 LB BLUE BLUE 19 470 19 470 1027 500 MCM B I BURNDY ILSCO BURNDY YA34 CRA 500L YA38 LB BROWN BROWN 20 299 20 299 1029 600 MCM B I BURNDY ILSCO BURNDY YA36 CRA 600L YA39 LB GREEN GREEN 22 472 22 472 1030 750 MCM B BURNDY ILSCO YA39 CRA 750L BLACK BLACK 24 24 NOTE When using crimp type lugs the lugs shall be crimped to the specifications given in the manufacturer s i...

Page 47: ...ure 3 7 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 holes bases ...

Page 48: ...ections between UPS and Battery BN BP 3 External signal terminal IOAU 19 TN11 21 22 1 Power Terminal UVR Terminal Block CB DC circuit breaker UVT Auxiliary Bypass module Wall mounted DC breaker for Battery User supplied User supplied Positive Negative 1 Only applicable for units without an internal CB2 2 Applicable for all 9900D configurations 1 2 2 ...

Page 49: ...MITSUBISHI ELECTRIC 9900D SERIES UPS 9900D SERIES UPS OWNERS TECHNICAL MANUAL Page Number 3 12 Figure 3 9 Diagram of power wire connections Parallel Operation system connection 6 ...

Page 50: ...N941 CAIN UPS n 1 CN964 DIBOUT UPS n 1 CN963 DIAOUT UPS 3 CN942 CBIN UPS n 1 CN953 TLAOUT UPS n 1 CN954 TLBOUT IFAU 16A IFAU 16A IFAU 16A UPS n 1 CN943 CAOUT UPS n 1 CN944 CBOUT A B CN96 J 16P GNDA GNDC GNDD GNDB DAS 8S ON OFF 1 8 CN96 CN954 CN953 CN952 CN951 TLAOUT TLBOUT TLAIN TLBIN CN943 CN944 CAOUT CBOUT CN962 CN963 CN964 DIAIN DIBIN DIAOUT DIBOUT CN961 CN95 20P CN95 A B CN94 J 10P CN94 CN941 ...

Page 51: ...MITSUBISHI ELECTRIC 9900D SERIES UPS 9900D SERIES UPS OWNERS TECHNICAL MANUAL Page Number 3 14 Figure 3 10 b Outline Drawing of IFAU 16 and Parallel System Operation Connection ...

Page 52: ...l CB2 1 In the Bypass Cabinet connect the 2 loose yellow wires to the UVR terminal block Attach wires 46 1 to terminal 1 and 46 3 to terminal 3 as shown in Figure 3 11 See Figure 3 12 for full wiring diagram Figure 3 11 UVR Terminal Block 2 Connect the remaining UVR signal wires between power modules as shown in Figure 3 12 Figure 3 12 Diagram of UVR Connection Between Power Modules NOTE ...

Page 53: ... the screen will show that the Load is powered by bypass line d On the LCD panel press the TRANSFER button and then press the START INVERTER button to proceed UPS start up Refer to Figure 2 3 e Follow the START INVERTER guidance accordingly until the completion of the inverter startup When REMOTE OPERATION MODE is displayed on the LCD panel the inverter start operation can only be performed remote...

Page 54: ...op e If a dual source is feeding the UPS open the External AC Input Circuit Breaker user supplied manually f If turning off all power to the critical load is desired open the External Bypass Input Circuit Breaker user supplied manually In bypass mode all UPS power terminals are still live Lethal voltages are present De energize all external sources of AC and DC power Before removing the covers wai...

Page 55: ...CLC UPS Circuit Breakers 52L1 52L2 and 52Ln are closed Start up from UPS 1 to UPS n 1 Start up each UPS in accordance with A Start Operation Each UPS will start Inverter Operation in synchronization with the bypass input Meaning of the icons in Figure 2 3 a in MMS START INVERTER UPS Module Startup STOP INVERTER UPS Module Stop TRANSFER TO INVERTER MMS Parallel in TRANSFER TO BYPASS MMS Parallel of...

Page 56: ...hen faults happen contact the Authorized Mitsubishi Electric Service Representatives or call Mitsubishi Electric at 1 800 887 7830 UPS FAULT Annunciator Silence Recording of Fault Primary Action Information to Service Center 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 ...

Page 57: ...l to 80 of nominal capacity Replace battery if its capacity is within this percentage B UPS Component Parts UPS components have a defined life expectancy Fan Capacitors Air Filters etc Contact Mitsubishi Electric Power Products Inc or its authorized service representatives for a complete parts replacement schedule Recommended replacement time interval varies with operating environment Contact Mits...

Page 58: ... description and required action In the event of a fault occurring 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 59: ...ent sound Bypass Input Abnormal UA814 BYPS FREQ OUT RNG Bypass line frequency is out of the specific range Detection Level Frequency Bandwidth 0 2 CHECK BYPASS INPUT Intermittent sound Bypass Input Abnormal UA815 TRANSFER PROHIBITION Transfer to bypass is not available due to bypass abnormality Intermittent sound UA816 BYP VOLT OUT RNG 2 Bypass line voltage is out of the specified range at ECO mod...

Page 60: ... Intermittent sound Alarm UA891 CHG PROHIBITED The relay turned on Intermittent sound Alarm UA892 DISCHG PROHIBITED The relay turned on Intermittent sound Alarm UA893 Battery Abnormal Battery Abnormal input port is activated Intermittent sound Alarm UF006 CONVERTER ABNORMAL Load On Battery INV mixed for two 2 min CALL SERVICE ENGINEER Intermittent sound Major UF055 CONVERTER ABNORMAL Load On Batte...

Page 61: ...ER Continuous sound Major UF303 CTRL CIRCUIT ERR Timer does not reset in the specified period WDT settings CALL SERVICE ENGINEER Continuous sound Major UF305 CTRL CIRCUIT ERR Detection of an abnormal clock speed in the CPU or FPGA CALL SERVICE ENGINEER Continuous sound Major UF306 CTRL CIRCUIT ERR Control power supply voltage is below the specified level CALL SERVICE ENGINEER Continuous sound Majo...

Page 62: ...munication error during parallel operation CALL SERVICE ENGINEER Intermittent sound Minor UF372 CTRL CIRCUIT ERR Unable to synchronize the inverter output and the bypass voltage CALL SERVICE ENGINEER Intermittent sound Minor UF373 STS CONT CIR ERR STS current sensor abnormal ECO CALL SERVICE ENGINEER Intermittent sound Minor UF374 CTRL CIRCUIT ERR Cable disconnection in the parallel interface boar...

Page 63: ...Communication error with LCD CALL SERVICE ENGINEER Intermittent sound Minor UF401 52S ABNORMAL Error to close the contactor 52S CALL SERVICE ENGINEER Continuous sound Major UF402 52S ABNORMAL Error to open the contactor 52S CALL SERVICE ENGINEER Continuous sound Major UF420 52L OPERATION ERR Load circuit breaker 52L opened during inverter operation CALL SERVICE ENGINEER Continuous sound Major UF45...

Page 64: ...cuit breaker CB2 is open Alarm MA834 BATTERY DEPLETED The battery voltage has reached the depleted level 400V Alarm MA836 INVERTER OVERLOAD The UPS could not transfer to the bypass because the bypass source has an abnormality Alarm MA837 BATTERY DEPLETED2 The calculated battery temperature has reached the limit level due to the long time large discharging Alarm MA860 CB1 ABNORMAL Unmatching in com...

Page 65: ...DC GROUND FAULT Detection of DC ground fault Major MF128 CTRL PWR ABNL Power supply voltage to IGBT driver PCB is below the specified level Major MF151 BAT VOLTAGE ABNL 24 hours after input power restoration batteries do not reach float voltage level Minor MF152 BAT VOLTAGE ABNL Unable to equalize the voltage of various batteries after 24 hours Minor MF154 CB2 ABNORMAL During UVT status signal fro...

Page 66: ...ervoltage Major MF230 ZERO PHASE OC Detection of zero sequence overcurrent Major MF253 CTRL CIRCUIT ERR Discrepancy between output voltage and inverter voltage or between output voltage and bypass voltage Minor MF254 COOLING FAN ABNL Fan Failure Minor 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 MF30...

Page 67: ...Major MF376 CTRL CIRCUIT ERR No control response from another UPS although its detection is possible Minor MF552 DUMMY FAULT Dummy fault for test Major Note 1 1 Major is defined as a major failure Load transferred from the inverter circuit to the static bypass line 2 Minor is defined as a minor failure UPS continues to operate normally but the cause of alarm must be identified Note 2 Code indicati...

Page 68: ...eseller 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 To ensure prompt support please update your Product Registration information www mitsubishicritical com registration at completion of startup ...

Page 69: ...1 UPS annual maintenance year unit 1 UPS semi annual maintenance year string 2 battery maintenance services year string 3 Quarterly Battery Package 4 site visits 1 UPS annual maintenance year unit 1 UPS semi annual maintenance year unit 4 battery maintenance services year string 4 Premium Package 2 site visits 1 UPS annual maintenance year unit 1 UPS semi annual maintenance year unit 2 battery mai...

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