Emerson 7400M Series User Manual Download

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7.2 Operating Instructions

7.2.1

Generality

7.2.2

Switching the system to Power the load from a power off condition

7.2.3

Switching the system to Maintenance bypass from Normal operation

7.2.4

Switching the system ON from a Maintenance power down condition

7.2.5

Powering down the system

7.2.6

Reset of the system after a recognised transfer to bypass or EPO Action

7.2.7

Powering down and insulating one module, the other still operating and back

7.3 Installation Procedure

7.3.1

Preliminary Cheeks

7.3.2

Power cables

7.3.3

Control cables

7.4 Optional Equipment

7.4.1

Auxiliary Battery Distribution Boxes

7.5 Specifications for 1 +1 configuration

Chapter 8 - Specification Single Module

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Summary of Contents for 7400M Series

Page 1: ...Series 7400M UPS USER MANUAL Single Module Parallel 1 N Esc 7400M UNINTERRUPTIBLE POWER SYSTEM Esc 7400M UNINTERRUPTIBLE POWER SYSTEM Part No 500203072038 Revision 01 ...

Page 2: ...nisation If you already own and use a Liebert UPS we are doubly honoured by your decision of continuing this relationship It is our constant endeavour to partner you for the growth and success of your business This philosophy is reflected in our Mission statement To deliver value through Air Power Quality solutions to achieve customer delight Please do give us feedback to help us realise our Missi...

Page 3: ...has not been designed for direct use in any life support application If you encounter any problem with the procedures contained in this manual you should seek immediate assistance from Emerson Network Power Sales Office from whom the equipment was purchased Alternatively contact the Emerson Network Power Customer Service Support department at the address shown below Emerson Network Power India Pvt...

Page 4: ...roda Address 39 2 Arunodaya Soc Alkapuri Baroda 390 005 Tel 91 265 231 4296 2330 383 Fax 91 265 2343937 Nagpur Address 203 Ganga Apts 13 Giripeth Nagpur 400 010 Tel 91 712 540 423 Fax 91 712 540 423 SOUTH ZONE Bangalore Address No 412 Jindal Center 2nd Flr 100 Fleet Road Koramangalam Opp Sukhsagar Hotel Bangalore 95 Tel 91 80 51135670 5770 5870 Fax 91 80 2558 8546 Chennai Address OMS Court No 1 Na...

Page 5: ...657 2227 678 NORTH ZONE New Delhi Address 18 14 WEA Pusa Lane Karol Baug New Delhi 110 005 Tel 91 11 2582 4206 2582 4208 2582 4214 18 Fax 91 11 2575 7601 Chandigarh Address SCO No 272 Sector 32 C D 1st Floor Above Punjab and Sind Bank Chandigarh Tel 0172 5077531 Fax 0172 5016531 Lucknow Address 213 2nd Floor Saran Chambers II 5 Park Road Lucknow 226 001 U P Tel 91 522 2237174 Fax 91 522 2239877 Gu...

Page 6: ...ERIES Battery manufacturers supply details of the necessary precautions to be observed when working on or in the vicinity of a large bank of battery cells These precautions should be followed implicitly at all times Particular attention should be paid to the recommendations concerning local environmental conditions and the provision of protective clothing first aid and fire fighting facilities TES...

Page 7: ...on 21 2 3 Procedure for switching the UPS into a Maintenance Bypass condition from normal operation 22 2 4 Procedure for Switching the UPS ON from a Maint Power down condition 24 2 5 Procedure for completely powering down the UPS 25 2 6 Procedure for carrying out a RESET after a recognised controlled transfer to bypass or EPO action 27 Chapter 3 Installation Procedure 28 3 1 Introduction 3 1 1 Equ...

Page 8: ...nications Kits 56 Chapter 5 Maintenance 58 5 1 Introduction 58 5 2 Safety Precautions 58 5 3 Scheduled Maintenance 58 5 3 1 Daily cheeks 58 5 3 2 Weekly checks 59 5 3 3 Annual service 59 5 3 4 Extended service 60 5 3 5 Battery maintenance 60 5 4 UPS Status parameters 61 Chapter 6 Troubleshooting 63 6 1 Troubleshooting UPS systems 63 6 1 1 Operating parameters and limitations 63 6 1 2 General Troub...

Page 9: ...75 7 2 5 Powering down the system 75 7 2 6 Reset of the system after a recognised transfer to bypass or EPO Action 76 7 2 7 Powering down and insulating one module the other still operating and back 76 7 3 Installation Procedure 77 7 3 1 Preliminary Cheeks 77 7 3 2 Power cables 78 7 3 3 Control cables 79 7 4 Optional Equipment 80 7 4 1 Auxiliary Battery Distribution Boxes 80 7 5 Specifications for...

Page 10: ...e critical load sees only clean power Power blackout protection If the mains power fails the UPS continues to power the critical load from its battery source leaving the load immune from power disturbances 1 2 Design Concept 1 2 1 7400 M Module Design This section describes an individual module s operating principles The UPS basically operates as an AC DC AC converter see figure 1 1 The first conv...

Page 11: ...the inverter output or to a bypass power source via the static bypass line Normally the load is connected to the inverter via a static switch circuits but in the event of a UPS overload or inverter failure it is automatically transferred to the Static bypass line To provide a clean no break load transfer between the inverter and static bypass line the static switch activates connecting the load to...

Page 12: ...manually but it contains an under voltage release coil which enables it to be tripped down from the UPS control electronics following certain detected faults It also has a magnetic trip facility for overload protection The batteries associated with the UPS are generally housed in a purpose built cabinet racks located alongside the main UPS equipment It is possible to install batteries of various t...

Page 13: ...A Q1 Rectifier Input Power Switch B Q2 Static Bypass Input Power Switch C Q3 Maintenance Bypass Power Switch D Q4 UPS Output Power Switch 1 Reset Push button A B C D 1 2 A B C D 1 2 7400M Series UPS User Manual Single Module and 1 N Parallel System ...

Page 14: ...FF or by flashing ON OFF This section can be further split into five separate areas as identified in figure 1 4 The lower section of the operator control and display panel consists of a LCD Liquid Crystal Display and its associated switches Figure 1 4 Operator Control Display Panel Figure 1 5 LED Indications Esc 7400 M UNITERRUPTIBLE POWER SUPPLY SYSTEM Esc 7400 M UNITERRUPTIBLE POWER SUPPLY SYSTE...

Page 15: ...essively from the left to indicate the state of charge of the battery as a percentage of full charge increasing in 20 steps to 100 when all five LEDs are illuminated When the mains AC input supply fails and the UPS is operating on the battery this bargraph changes to give the battery time remaining With a fully charged battery all five LEDs will illuminate showing ten minutes or more autonomy as t...

Page 16: ...elect options from a menu for display on the window or else to charge the value of certain parameters ENTER 4 Pressing ENTER when selecting options displays the next window The next window is determined by the option which has been elected in the present window When selecting new parameters it saves the new parameters ESCAPE Pressing ESCAPE cancels the most recent actions i e when selecting option...

Page 17: ... UPS operational status and indicates alarm conditions when they occur and line four normally shows the time and date Refer to Chapter 6 Troubleshooting for more details Info Window From default window pressing the ESC key information about the modem programmed in memory see communication handbook and its connection are shown on display Pressing again the ESC key software release are shown both on...

Page 18: ... A B C XXXX XXXX XXXX REAL POWER KW A B C XXXX XXXX XXXX APP POWER KVA A B C XXXX XXXX XXXX APP POWER KVA A B C XXXX XXXX XXXX FREQUENCY Hz INVERTER XX X BYPASS XX X FREQUENCY Hz INVERTER XX X BYPASS XX X INPUT VOLTAGE Vrms A B B C C A XXX XXX XXX INPUT VOLTAGE Vrms A B B C C A XXX XXX XXX BATTERY VOLTAGE XXX V CURRENT XXXX A CHARGE XXX BATTERY VOLTAGE XXX V CURRENT XXXX A CHARGE XXX TEMPERATURE T...

Page 19: ...e The UP DOWN push buttons move these up and down the screen over the options When the arrows point at a chosen option press ENTER to display the next window Press ESCAPE to return the previous window to the screen Alarm Warning messages The Alarm and Warning messages are shown on the three upper lines of the display The ALARM indicator red and audible warning accompany all Alarm messages There is...

Page 20: ...ntified in chapter 1 Some of the diagrams are repeated here to assist in understanding the procedures Note 2 The audible alarm may annunciate at various points in these procedures It can be canceled at any time by pressing the Alarm Reset push button Note 3 The 7400 M series UPS incorporates an optional automatic boost charge facility which can be used in systems containing conventional flooded le...

Page 21: ... Input Power Switch C Q3 Maintenance Bypass Power Switch D Q4 UPS Output Power Switch 1 Reset Push button 2 UPS Logic Boards Figure 2 2 Power Switch Identification 3 6 8 1 2 4 5 9 7 3 6 8 1 2 4 5 9 7 A B C D 1 2 A B C D 1 2 7400M Series UPS User Manual Single Module and 1 N Parallel System ...

Page 22: ... various messages with the time and date on the bottom line Note If input power is present but the display remains blank locate the UPS Logic Board and observe that the indication on the board is a flashing 88 If this is not the case then the Micro Controller is not working anyway contact your dealer for advice 3 Close the Rectifier input power switch Q1 After approximately 20 seconds the Module M...

Page 23: ...ing normally with its Inverter supplying the load 2 3 Procedure for Switching the UPS into a Maintenance Bypass condition from normal operation This procedure should be followed to transfer the load from the UPS inverter output to the maintenance bypass system This may be required during UPS maintenance procedures The first of this procedure details how to select the Inverter OFF and power the loa...

Page 24: ...now shut down and the load will transfer to the Bypass supply The Display window can be returned to normal by operation of the ESCAPE key back through the various windows The Module Mimic indicator Load on Bypass 3 will flash amber and the Load on Inverter indicator will extinguish Your load is now powered via the Static Bypass system 6 Unfasten the lock release the internal safety bar and close t...

Page 25: ... Module Mimic indicator Load on Bypass 3 will flash amber The display window will show the present status of the UPS 5 From the above window press the ENTER key The Main Menu Window will display 6 Select FUNCTION and press ENTER key Before being allowed into the FUNCTION windows you are requested to enter a password This Is achieved by pressing the UP arrow key repeatedly until the first digit dis...

Page 26: ...nds the Module Mimic LED s will change so that the Load on Inverter 2 will light steady green and the Load on Bypass 3 will extinguish 10 Return the Display window to normal by repeatedly pressing the ESCAPE key back through the various windows until the default screen is displayed The UPS Is operating normally with Its Inverter supplying the load 2 5 Procedure for Completely Powering Down the UPS...

Page 27: ...tions and messages will extinguish as the mains driven internal power supplies decay 3 To completely isolate the UPS from the AC supplies the main external power Input isolator both isolators where separate supplies are provided for rectifier and bypass should be opened Wait 5 minutes for the internal DC bus bar capacitors to discharge The UPS Is now completely powered down IMPORTANT The Maintenan...

Page 28: ... 2 Press the RESET push switch labeled S1 on the UPS Logic board part number 100221011030 This operation can be easily done through the hole on the screening panel using for instance a plastic pencil or similar Operation of this push button resets the logic circuitry to enable the rectifier inverter and static switch to operate normally Note When the remote EPO switch has been activated it is nece...

Page 29: ...ccidental electrical arcs Remove rings watches and all metal objects Only use tools with insulated handles Wear rubber gloves If a battery leaks electrolyte or is otherwise physically damaged it must be replaced stored in a container resistant to sulfuric acid and disposed of in accordance with local regulations If electrolyte comes into contact with the skin the affected area should be washed imm...

Page 30: ...n a dirty environment Cables All control cables should be screened and run separate from the power cables in metal conduits or metal ducts which are electrically bonded to the metalwork of the cabinets to which they are connected Cooling air flow All the models in the 7400 M range are force cooled with the aid of Internal fans Cooling air enters the module through ventilation grills located at the...

Page 31: ...duce the battery capacity On a normal installation the battery temperature is maintained between 15 C and 25 C Batteries should be mounted in an environment where the temperature is consistent and even over the whole battery Keep batteries away from main heat sources or main air inlets etc Pedestals are required for the battery cabinets when they are located on raised floors in the same way as for...

Page 32: ... 710 800 250 Rear Wall Front Esc 7400 M U N I T ERRUPTIBLEPOWERSUPP LYSYSTEM 7400M Series UPS User Manual Single Module and 1 N Parallel System 200 125 Slot for Power Cables 125 x 85 Slot for all Control cables 200 x 40 92 5 Additional fans fitted when the Input harmonic filter is included Or for 380V system ...

Page 33: ...mage to the shipper immediately 3 Verify that the shipment is complete e g that the battery contains the correct number of cells etc Report any discrepancy immediately 4 When you are satisfied that the equipment is complete and in good condition move it to its proposed final position 5 After fixing the unit in final position remove transit support connected to heavy wound components 3 2 Preliminar...

Page 34: ...nductor should be sized 1 5 times the output bypass phase current 2 The earth conductor should be sized at 2 times the output bypass conductor this is dependent on the fault rating cable lengths type of protection etc 3 Cable 4 dia applies to single core PVC insulated non armored cable in a ambient temperature of 30 C according to fixing method 1 samples shown in figure 3 3 4 These recommendations...

Page 35: ...OCK HAZARD TO PERSONNEL OR THE RISK OF FIRE SHOULD AN EARTH FAULT OCCUR 3 3 5 Protective Devices Bypass Input of UPS is not self protected against overloads or shorts circuits it s necessary to install in distribution panel a circuit breaker or fuses to protect bypass line Rectifier Input it s the same in case of separate rectifier input it s necessary to install in distribution panel another circ...

Page 36: ... supply is not provided ensure the links are fitted between the rectifier input supply busbars and the bypass input supply busbars see figure 3 5 ENSURE CORRECT PHASE ROTATION If a separate bypass supply is provided connect the UPS bypass input supply cables between the bypass distribution panel and the UPS bypass input supply busbars and tighten the connections 5 4 Nm Ensure that any links fitted...

Page 37: ...tions to P C or Modem G Communications to AS400 Ext Alarm Monitor H Remote Emergency Power OFF EPO 7400M E sc 7400 M U N I T E RRUPTIBLEPOWERSUPP LYSYSTEM B A T T E R Y B A N K G F E D C B A H A Rectifier AC Input supply B Bypass AC Input supply C UPS AC Output D Battery Power E Battery Control Temp compensation F Communications to P C or Modem G Communications to AS400 Ext Alarm Monitor H Remote ...

Page 38: ...y Temp Common Battery CB Aux contact Battery CB trip EPO AS400 Alarms connections Cable G Communication connections Cable F X3 Cables E and H Safety Earth Battery Power Connections Cable D Q4 Q3 Q2 Q1 Output Connections To load Cable C Input connections for split bypass system from Mains AC supply Cable B UPS Rectifier Input connections from Mains AC supply Cable A These links must be removed for ...

Page 39: ... with local and national codes of practice 4 Connect the battery circuit breaker control and temperature compensation cables between the UPS auxiliary terminal block and battery circuit breaker controller board as shown in figures 3 5 and 3 7 These cable must be shielded shield should be connected at protective earth of battery cabinet or battery breaker not of UPS WARNING It battery temperature c...

Page 40: ... v DC busbar 204 battery cells The batteries associated with the UPS equipment are usually contained in a purpose built battery cabinet which sits alongside the main UPS equipment Sealed maintenance free batteries are normally used in this type of installation see figure 4 8 Where battery racks are used they should be sited and assembled in accordance with the battery manufacturer s recommendation...

Page 41: ...re are two boxes available which are similar in their design and content These are listed below 100 Amp C B Part No 270141030400 160 Amp C B Part No 270141060400 Usually the box is fitted as close as possible to the batteries Battery circuit breaker boxes must be earthed The connections are similar to the connections made to the battery cabinet Figure 3 7 shows details of the power and control cab...

Page 42: ... C B Controller 3 2 1 F13 1 2 3 4 5 6 7 8 9 10 11 12 X3 UPS CABINET BATTERY CIRCUIT BREAKER X3 X4 X5 X6 X7 X8 X9 X2 X10 1 2 3 4 5 X1 Sensor Temperature Optional Battery C B Controller A Half potential switching method B Double positive pole method Figure 3 7 Battery Control and Power Connections 7400M Series UPS User Manual Single Module and 1 N Parallel System ...

Page 43: ... load to the bypass supply The second remote input can be configured to reduce the input current limit reduce battery current limit inhibit inverter synchronization This feature is most often used when the input mains supply fails and the UPS is powered from a standby generator which may not be large enough to maintain power supplies within the normal parameters The third remote input is not used ...

Page 44: ...erator apply 12V Inverter off apply 12V Not used RL K1 MNS_KO RL K2 BATED RL K3 MNS_L RL K4 SW_BYP RL K5 INV_L RL K6 AS400BY RL K7 AS400BL RL K8 AS400ON RL K9 AS400UE ON_GEN INV_OFF X5 X2 X1 100 201 120 003 4590055P Maximum Contact Rating 50Vcc 1amp ALARM INTERFACE BOARD from UPS Logic Board Connection for add on card 100 201 120 007 or 100 201 120 008 Figure 4 1 AS400 Alarm Interface Board 100 20...

Page 45: ...cators must be provided from an external power source Under no circumstances should the UPS internal low voltage supplies be used for this purpose 4 1 4 X2 Extension The X2 connection on the board is provided to interface the UPS systems with the Remote Alarms Board 100201120007 which contains additional alarms or with 3 x AS400 Board 100201120008 as shown in figure 4 2 below X2 X1 100 201 120 003...

Page 46: ...free alarm outputs that are connected to terminal blocks X2 and X3 as shown in figure 4 4 These outputs can be used to drive an external alarms monitoring device Maximum contact rating on M1 terminals 50 Vcc 1 Amp Note When using the above contacts for remote alarm annunciation the power supply for the remote indicators must be provided from an external power source Under no circumstances should t...

Page 47: ...X2 Battery on Load Overload Inverter Over temperature Inverter Unsynchronized Common Alarm RL K1 RL K2 RL K3 RL K4 RL K5 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 X2 Not used Transfer on Bypass inhibit Rectifier Mains failure Not used Not used RL K6 RL K7 RL K8 RL K9 RL K10 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 X3 Not used Transfer on Bypass inhibit Rectifier Mains failure Not used Not used RL K6 RL K7 RL...

Page 48: ...ls Alarm logic and contact rating are the same as the section AS400 of 100201120003 This circuit is repeated 3 times on 100201120008 so it possible to connect upto 4 AS400 to the UPS Figure 4 5 Additional 3 x AS400 Interface Board 7400M Series UPS User Manual Single Module and 1 N Parallel System RL K12 RL K11 RL K10 RL K9 1 2 3 4 5 X4 X1 UPS Bypass Battery Low UPS On Utility Failure Common OV RL ...

Page 49: ...his is a common alarm and is lit when any of the red leds described above are lit Table 4 1 An audible warning accompanies any of the above alarm conditions This is however subject to a short time delay when activated in conjunction with the Utility Failure and Bypass ON alarms to prevent the warning being activated by transient conditions Pressing the reset push button cancels the audible warning...

Page 50: ...odule and 1 N Parallel System Bypass Failure Low Battery Load on Mains Load on Maintenance Bypass Load on Inverter X4 RL K1 RL K2 RL K3 RL K4 RL K5 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 5 4 3 2 1 9 8 7 6 UPS Monitor Tata Liebert INVERTER ON UTILITY FAILURE BATTERY LOW ALARM ON MAINTENACE BYPASS 220 240V AC 50 Hz ...

Page 51: ...f electrolyte comes into contact with the skin affected area should be washed immediately Batteries MUST be disposed of according to local environmental laws Due to different type and size of cells that can be used in battery installations it would be impracticable to provide specific installation instructions in this manual After each connection is made fit the insulation shroud for that terminal...

Page 52: ...02 02 51 To UPS Figure 4 7 A Battery Rack Figure 4 8 Interconnection details for Batteries with Double Positive Method 7400M Series UPS User Manual Single Module and 1 N Parallel System ...

Page 53: ...02 02 52 BATTERY SUPPLY TO UPS CABINET Figure 4 9 A typical arrangement of Batteries in a Battery Cabinet 7400M Series UPS User Manual Single Module and 1 N Parallel System ...

Page 54: ...3 As a safety precaution remove the battery fuse in the UPS before making the battery circuit breaker power connections The battery circuit breaker box offers the following features Undervoltage cut off controlled by the UPS Low battery safety cut off Battery circuit breaker status information to the UPS Over current protection Three pole circuit breaker which can be connected in either a Double p...

Page 55: ... 3 X1 3 Control signal common1 X3 4 X1 2 C B status signal X3 5 X1 1 C B Control signal X3 6 Temperature sensing to UPS Earth Control Monitoring signals 3 2 1 V F13 1 2 3 4 5 6 7 8 9 10 11 12 X3 UPS CABINET BATTERY CIRCUIT BREAKER X3 X4 X5 X6 X7 X8 X9 X2 X10 1 2 3 4 5 X1 Sensor Temperature Optional Battery C B Controller To Battery Figure 4 10 Battery Box layout and connections using Double Positi...

Page 56: ...figure 4 11 Using the wiring configurations shown in figure 4 12 the UPS can be connected to either a personal computer of a modem See manual include in the kit Caution Note The communications wiring for this option must be kept separate from the power wiring This is to maintain the integrity of Safety Extra Low Voltage S E LV circuits Figure 4 11 Installing the RS232 communication cable 100204012...

Page 57: ... RD 4 RTS 5 CTS 6 DSR 7 GND 8 DTR D25 m D25 f Modem UPS X4 wiring details for connections of UPS to Personal Computer via DB25 socket GND 1 TD 2 RD 3 RTS 4 CTS 5 DSR 6 GND 7 DTR 20 2 RD 3 TD 4 DTR 5 GND 6 DSR 7 RTS 8 CTS D25 m D9 m PC RS 232 UPS X4 wiring details for connections of UPS to Personal Computer via DB9 socket Figure 4 12 RS232 connections to PC or Modem 7400M Series UPS User Manual Sin...

Page 58: ...is essential that the safety and precautionary notes contained throughout this manual are read and FULLY UNDERSTOOD before touching any UPS internal component part 5 3 Scheduled Maintenance The UPS utilises solid state components which are not subject to wear with the only moving parts being the cooling fans Scheduled maintenance requirements beyond ensuring that the environmental conditions remai...

Page 59: ... this service procedure himself it is imperative that the UPS be totally shut down and isolated from the input mains and bypass supplies and batteries using the procedure given below We therefore strongly recommend that the annual service is carried out by trained personnel 1 Carry out the weekly checks detailed above 2 Shut down the UPS following the recommended operating procedure 3 Isolate the ...

Page 60: ... for a 415V AC system At this voltage the battery circuit breaker will trip and the load will transfer to bypass Ensure that the available battery autonomy time meets the installation specifications 5 3 4 Extended Service We recommend that ALL the input output power cables and their connections are checked periodically As this requires the UPS to be completely shut down such a check should be carr...

Page 61: ...ral maintenance procedures these options are not required With reference to figure 5 1 and by using the DOWN and ENTER keys all the parameters monitored from the operator control and display panel can be viewed For example to view the system temperatures use the DOWN key until the cursors are opposite TEMPERATURE now press the ENTER key The TEMPERATURE screen is displayed where Tt is transformer t...

Page 62: ...XXXX XXXX XXXX N XXXX CURRENT A RMS A B C XXXX XXXX XXXX N XXXX REAL POWER KW A B C XXXX XXXX XXXX REAL POWER KW A B C XXXX XXXX XXXX FREQUENCY Hz INVERTER XX X BYPASS XX X FREQUENCY Hz INVERTER XX X BYPASS XX X APP POWER KVA A B C XXXX XXXX XXXX LOAD A B C XXX XXX XXX INPUT VOLTAGE Vrms A B B C C A XXX XXX XXX INPUT VOLTAGE Vrms A B B C C A XXX XXX XXX BATTERY VOLTAGE XXX V CURRENT XXXX A CHARGE ...

Page 63: ... it is important to maintain a regular record of the UPS meter indications as suggested in the maintenance instructions in order that any change in the system or load characteristics are readily identified In general the output voltage should be within 2 of nominal If the UPS has not operated on battery power within the previous ten hours the battery charge current should be typically less than 6A...

Page 64: ...ot report the fault occurrence to the nearest service agent who will then forward the details to the manufacturer This type of customer feedback is an important factor in maintaining high product reliability and also provides important data concerning the equipment field performance CAUTION The following diagnostic charts are designed for first aid troubleshooting only If a problem cannot be resol...

Page 65: ...rcuit breaker being open or that the DC busbar voltage is below the figures stated 2 above The battery circuit breaker will open automatically if the DC voltage falls below these levels Check the following a Battery circuit breaker is closed b DC busbar voltage if not above 320 V then carry out the checks as per 1 mains failure above If the DC busbar voltage is greater than 320 V but you are unabl...

Page 66: ...e 6 OVER LOAD PRESENT The Inverter overload had an inverse load time characteristic i e it will accept 125 overload for 10 minutes And 150 for 60 seconds If this characteristic is exceeded then the load transfers to the bypass supply the inverter stops and the overload alarm annunciates The OVERLOAD PRESENT alarm will annunciate as soon as the load exists 100 of the UPS rating and the load will tr...

Page 67: ...age 25 AUTONOMY XXXX min The micro monitors the battery percentage capacity while on charge and the battery time remaining while on discharge It calculates the time remaining as function of the discharge current against the programmed ampere hour capacity of the battery It will update the time remaining as the load is changed 26 BATTERY UNDER TEST This message informs the operator that the system ...

Page 68: ... Cont On 04 RECT SWITCH OPEN Cont On 05 BATT SWITCH OPEN Cont On 06 MANUAL BYPASS CLOSED Pulse Blinking 07 08 09 10 BYP ABSENT Interm Blinking 11 BYP OVER VOLTAGE Interm Blinking 12 BYP UNDER VOLTAGE Interm Blinking 13 BYP FREQUENCY ERROR Interm Blinking 14 BYP PHASE ROT ERROR Cont On 15 BYP SCR FAILURE Cont On 16 BYP HARDWARE BLOCK Pulse Blinking 17 BYP OFF VIA DISPLAY Pulse Blinking 18 LOAD ON B...

Page 69: ...nt On 56 DC BUS UNDER VOLTAGE Cont On 57 BATTERY FUSE FAIL Cont On 58 DC BUS FAST OVERVOLT Cont On 59 60 BYP TXR COUNT BLOCK Cont On 61 CUT OFF OVER LOAD Cont On 62 CUT OFF OVER TEMP Cont On 63 CUT OFF EMERGENCY Cont On 64 65 66 OVER LOAD PRESENT Cont On 67 CUT OFF OVER LOAD Cont On 68 69 70 BAD EEPROM PROGRAM Pulse On 71 ERROR LRC PAR PAGE1 Pulse On 72 ERROR LRC PAR PAGE2 Pulse On 73 ERROR LRC PA...

Page 70: ...paralleled modules share currents to load equally Redundant power The redundant system capacity is the ability to supply the load with the same features as a single module when one of the two modules in parallel is not operating for maintenance or failure the redundant power of the system is the same of the rated power of a single module Total power full power capacity The power system capacity is...

Page 71: ...Supply Battery Circuit Breaker 3 Output Switch Q4 Rectifier Input Switch Q1 Maintenance Bypass Power Switch Q3 Maintenance Bypass Line Static Bypass Line Bypass Power Switch Q2 Module 3 UPS Output Supply RECTIFIER STATIC SWITCH INVERTER BATTERY Bypass a c Supply Rectifier Input a c Supply UPS Output Supply Battery Circuit Breaker 2 Output Switch Q4 Rectifier Input Switch Q1 Maintenance Bypass Powe...

Page 72: ...pass Pow er Switch Q3 Maintenance Bypass Line Static Bypass Line Bypass Pow er Sw itch Q2 RECTIFIER STATIC SWITCH INVERTER Bypass a c Supply Rectifier Input a c Supply UPS Output Supply Battery Insulator 1 Output Sw itch Q4 Rectifier Input Sw itch Q1 Maintenance Bypass Pow er Switch Q3 Maintenance Bypass Line Static Bypass Line Bypass Pow er Sw itch Q2 Module 1 Module 2 Input Distributions Load Di...

Page 73: ...ass Supply The load can be supplied by the static switch of each module or both The conditions to operate static switch are the same than the single module An electronic interlock prevents the module itself and the other to supply load with its own inverter Normal Operation The load is normally supplied by both inverters an electronic control share equally the load separately for the 3 phases In n...

Page 74: ... removed Relays that connect inverter control to parallel current sharing bus are closed after a small delay parallel current sharing circuits are enabled relays are opened only turning off its inverter From Normal Operation to Bypass Supply In case of detection of bad output voltage overload time expiration overtemperature of inverter 11 at least one module sees that mains is good both inverter s...

Page 75: ...y Switch Box both switches in it must be closed of course battery circuit breaker is still open 2 Bypass switch Q2 must be closed follow the same for both modules 3 Rectifier switch Q1 must be closed follow the same for both modules 4 Output switch Q4 must be closed for both modules 5 Follow the same for common battery system for separate batteries system operate in the same manner one battery at ...

Page 76: ...with no load supplied by the battery and the rectifier of the other module that are still supplying it It s necessary to open the switch of Auxiliary Battery Switch Box that supplies the inverter to be turned off To power on a module that was insulated follow the procedure 2 4 instead of closing battery circuit breaker it is still closed close the switch of Auxiliary Battery Switch Box WARNING wit...

Page 77: ...th the same SW and HW release WARNING with Auxiliary Battery Switch Box Operation of fitting the parallel kits and setting of boards and Us to convert it from Single Module to 1 1 must be made by Emerson Network Power s Service and Support trained personnel This operation involves also setting of system with separate batteries or common battery 1 1 redundant or full power Figure 7 3 Position of Pa...

Page 78: ...ence between positive and negative current half waves in the two modules could cause trip of separate differential breakers Power cables in particular bypass inputs and UPS outputs must be same size and length for both modules that s for better balancing current in case of Load on Bypass operation mode where no other mean is provided for current sharing Battery For separate batteries fig 7 1 ratin...

Page 79: ... s suggested to use an emergency power off push button with two separate and insulated ways so it s possible to power off both modules at the same time A third insulated way may be used to trip input breakers of distribution panel Its needed to power off also inputs of modules For EMI reasons cabling must be shielded and shield must be grounded at EPO side 7400M Series UPS User Manual Single Modul...

Page 80: ...perature and to compensate charging voltage with temperature In a similar manner than the single module WARNING There is no protection against closing one of these switches on a shut down rectifier when the battery breaker is closed Such operation will cause trip of battery circuit breaker and of battery fuses on one or both modules Be sure before operating that battery voltage and rectifier volta...

Page 81: ... 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 Q1 Q2 X3 X1 X1 X2 m m C1 T1 T2 A U X I LI A R Y B A T T E R Y D I S T R I B U T I O N B O X 1 2 3 4 5 6 7 8 9 10 11 12 X3 F 13 F 13 U P S C A B I NE T 1 m T1 T11 Remo ved 1 2 3 4 5 6 7 8 9 10 11 12 X3 F 13 F 13 U P S C A B I NE T 2 m T11 Remo ved 70 69 68 70 69 68 C2 D1 D2 C2 D2 Figure 7 6 Connection of Auxiliary Battery Distrib...

Page 82: ... Battery screws Pin 12 screen Pin 3 not connected Pin 11 Pin 2 Pin 10 Pin 1 Cable C 5 wires screen Connector X3 on UPS cabinet Connector X2 or X3 on Aux Batt Dist Box Pin 1 not connected Pin 1 screen Pin 2 Pin 2 Pin 3 Pin 3 Pin 4 Pin 4 Pin 5 Pin 5 Pin 6 Pin 6 Cable D 3 wires screen Cables of removed T11 in UPS cabinet Connector X2 or X3 on Aux Batt Dist Box Wire 68 Pin 10 Wire 69 Pin 9 Wire 70 Pin...

Page 83: ...rated current Maximum load allowable to commutate from bypass to inverters 200 of single module rated current Maximum load allowable during overload 300 of single module rated current Maximum voltage unbalance to maintain parallel 10 of output rated voltage Maximum velocity variation of output frequency Hz sec 0 1 fixed Frequency stability not synchronized 0 1 when input supply frequency is outsid...

Page 84: ...d 2000 Storage temperature ºC 25 to 70 Acoustic noise at rated load 1 meter from the apparatus dBA 56 Input Ratings Units Model kVA Rating 30 40 60 Power consumption at rated load while float charging the battery kVA 32 8 43 5 64 9 Power consumption at rated load while boost charging the battery KVA 41 0 54 3 81 1 Input current level normal running Vin 400 V A 47 0 63 0 94 0 Input current level fu...

Page 85: ...n linear load 100 with 3 1 crest factor Voltage stability steady state transient state 1 5 Reset time to within 1 20 Frequency stability synchronised ms The output will synchronise with the input supply within 0 5 Hz of nominal frequency adjustable to 2 Hz Frequency stability not synchronised 0 1 when the input supply frequency is outside the synchronising range Ph voltage asymmetry balanced load ...

Page 86: ...330 340 Absolute Maximum Voltage manual charge UPS 380V UPS 400V UPS 415V V d c 480 495 510 Rectifier output current rating A 75 100 150 Voltage stability with rectifier 1 Residual alternating Voltage 1 Maximum boost charge duration Hours 1 15 hours selectable Charging current A 3 15 5 20 6 30 Inverter power at rated load KW 25 7 34 1 50 8 Input current to inverter at minimum voltage A 78 103 154 ...

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Emerson 7400M Series, User Manual

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