Liebert iTRUST UPS System User Manual E1-20020516-C-1.
Contents Chapter 1 Introduction .....................................................................................................................1 1.1 Basics .................................................................................................................................1 1.2 Configuration ......................................................................................................................1 1.3 Operation Theory.............................................................
5.2 5.3 5.4 5.5 5.1.4 Alarm Buzzer..........................................................................................................46 5.1.5 LCD and Menu Keys ..............................................................................................46 The displayed information ................................................................................................48 5.2.1 Opening display ..................................................................................................
Chapter 8 Parallel System .............................................................................................................87 8.1 System Introduction..........................................................................................................87 8.1.1 Basics.....................................................................................................................87 8.1.2 Theory of Operation.....................................................................................
Chapter 1 Introduction Chapter 1 Introduction 1.1 Basics The Liebert iTrust UPS System is connected between the utility source and the critical load to provide uninterruptible power to the load. The power from the UPS being free of voltage and frequency variation and disturbances from utility. The UPS has an output isolation transformer to provide galvanic isolation between the load and utility. The UPS also uses the latest in high frequency double conversion PWM technology and a fully digital control.
Chapter 1 Introduction 1.3 Operation Theory The UPS circuit diagram is shown in Figure 1-2. TR1 AC2 Q1 FU1 A1 B1 C1 L1 KM1 FU2 FU3 KA1 Res1 Res2 Q2 A2 B1 C1 N2 KM2 BP + BN DC1 Res3 Q3BP U V W N Q5 FU4 FU5 FU6 AC4 AC3 TR2 DZN6 Figure 1-2 Main circuit of UPS The utility source is input at Q1 and flows through the fuse, the transformer, inductor and into the high frequency rectifier which will convert the AC power into DC power.
Chapter 1 Introduction The double DSP and MCU form the full digital control system to realize the powerful function of the UPS. The switching between the operation modes is realized by controlling the bypass static switch and the inverter static switch. Advanced battery management prolongs battery life. Multi-communication ports and management software make it possible for the customer to monitor the UPS performance locally or remotely.
Chapter 1 Introduction Front view 1:Fan 2:rectifier 3: softstart relays 4:contactor 5: two auxiliary power supply boards ULW2L61M5 6: D level lightning protection device SPD12Z 7: Hall current sensor 8:battery input terminals 9:circuit breaker Q3BP for maintenance 10:rectifier input circuit breaker Q1 11:bypass input circuit breaker Q2 12:Inverter 13: fast fuse 14: parallel board ULW2L61M3 15: EMI board ULW2L61M4 16: magnetic core 17: output circuit breaker 18:operation keypad board 19: L
Chapter 1 Introduction Bypass Mains ~ - - ~ output Figure 1-5 Normal mode 2. Battery Mode When the utility fails, the UPS system will switch to battery mode without interruption and the battery will power the load through the inverter. The UPS can return to normal mode automatically when the utility returns to normal, as shown in Figure 1-6. Bypass Mains ~ - - output ~ Figure 1-6 battery mode 3.
Chapter 1 Introduction 4. ECO Mode If the load has no requirement for power quality but has a high requirement for efficiency, then the UPS can be set in ECO mode. In this mode, the system will power the load through the static bypass switch and the rectifier will charge the batteries. When the bypass source fails or out of normal range, the UPS will revert back to normal mode and powers the load through the batteries. The total transfer time will be less than 15 msecs.
Chapter 1 Introduction 6. United Power Mode When the utility is not available and the capacity of the generator set is inadequate to support the load, the battery will power the load together with the generator automatically. The operating time under this mode should not exceed the autonomy time of the batteries, as shown in Figure 1-10 Note : This mode can only be set by qualified personnel only. Bypass Mains ~ - - ~ output Figure 1-10 7.
Chapter 1 Introduction Bypass Mains ~ - - ~ output Fig 1-12 1.6 Basic Functions Battery Management Function - The UPS has advanced battery management functions including battery fault detection and backup time forecast. Soft Start Function - Complete delay soft start function can reduce the surge to the UPS unit and utility source. Alarm and Protection Function - The UPS can generator audible and visual alarm through LCD, input/output contacts and network transmission.
Chapter 1 Introduction Parameters of Liebert iTrust UPS are given in Table1-1 Rectifier input Capacity 20kVA Model UL33-0200L 30kVA UL33-0300L 40kVA UL33-0400L 60kVA UL33-0600L Input Voltage 380/400/415V(line-to-line voltage) AC Power Input Three-phase three-wire Power Factor >0.
Chapter 1 Introduction Capacity 20kVA Model UL33-0200L 30kVA UL33-0300L 40kVA UL33-0400L 60kVA UL33-0600L 105% < load 125% , transfer to bypass mode after 10±0.
Chapter 1 Introduction System Capacity 20kVA Model UL33-0200L 30kVA 40kVA UL33-0300L UL33-0400L 60kVA UL33-0600L Insulation Resistance >2M(500VDC) Dielectric Strength (input to earth, output to earth)2820Vdc, leakage current lower than 3.5mA, 1min without arc Surge Immunity Satisfy the class IV requirements specified by IEC60664-1, the ability to withstand 1.
Chapter 2 Cabinet Installation Chapter 2 Cabinet Installation 2.1 Environmental Conditions Operating Temperature : 0~ 40°C Storage Temperature: -40~ 70°C(with no battery) -20~ 55°C(with battery) Relative Humidity:5%~95%, no condensation Cooling method : Fan cooling Elevation:1500m Maximum Tilt : 5 degrees Pollution :Class II The UPS should be installed in a cool place with good ventilation, low humidity and free of dust.
Chapter 2 Cabinet Installation Figure 2-1 4 fixing holes 4 screws for levelling feet Figure 2-2 External Dimensions of 40/60kVA UPS are shown in Fig. 2-3 and its installation position is shown in Fig. 2-4.
Chapter 2 Cabinet Installation Figure 2-3 40/60kVA UPS Outline Dimension 4 fixing holes 4 screws for levelling feet Figure 2-4 40/60kVA UPS Fixing Holes 15
Chapter 2 Cabinet Installation 2.4 Transportation 1. Hoisting the UPS Prepare four cables of length 1.5 m and the weight bearing capacity of each cable of 1.5 tons. The UPS has four lifting rings and should be installed at the top of the UPS 2. Transportatio with Forklift The UPS can be raised by forklift in four directions – front, back, left and right. But the transportation distance should not exceed 10 m. 2.5 Positioning of UPS The UPS cabinet exerts its weight on the floor through four castors.
Chapter 2 Cabinet Installation 2. Fixed position without a base In earthquake prone areas, place UPS on a conduit as shown in Figure 2-6. 1. At the edge of the conduit, drill holes for fixing expansion bolts 2. Hoist the cabinet at least 250 mm to remove the four leveling bolts. Take off the plastic cover of the installation holes on the beam. 3. Position the cabinet at the right position and align the holes on the beam and the holes on the expansion bolts. 4.
Chapter 2 Cabinet Installation Figure 2-7 Install the UPS on a support rack 1. Finished state 2. Concrete floor 3. Nut 4. Spring washer 5. Flat washer 6. Supporting frame 2.6 Cable Access The UPS has various methods of cable access. One is bottom access where the cables are routed in conduit from the bottom of the UPS. This is shown in Figure 28. Another is top access where the cables are routed on cable trays from the top and into the UPS as shown in Figures 2-9.
Chapter 2 Cabinet Installation Input cable Battery cable Output cable Signal cable Fig. 2-9 UPS top cable output 2.7 Ventilation The cooling air comes into the UPS from the bottom and the fan circulates the cool air inside the UPS. The air is expelled out of the UPS from the back. Table 2-3 shows the relationship between the power consumed and air intake. The rear clearance required by the UPS is 500 mm.
Chapter 2 Cabinet Installation 2.8 Layout of Cabinet Besides the UPS cabinet, there are also battery cabinets, input/output distribution cabinet and cabinet for bypass transformer. All these cabinets should be laid out correctly. The layout of battery cabinet and UPS cabinet is shown below. 1. One UPS cabinet and one battery cabinet If the required battery backup time is 15 – 16 minutes, one battery cabinet is required to hold all the required batteries.
Chapter 2 Cabinet Installation Battery cabinet 1 Battery cabinet 2 Fig.
Chapter 3 Electrical Assembly Chapter 3 Electrical Assembly This chapter introduces the connection methods of the power and signal cables. 3.1 Selection of cables 3.1.1 Current carrying capacity of cables The current carrying capacity can be selected according to the voltage drop and permissible temperature increase. Table 3-1 Current carrying capacity of cables Current carrying capacity (A) Cross sectional area(mm2) 1 1.5 2.
Chapter 3 Electrical Assemble protective earth cable and lightning protection earth cable, should be 0.5 times of phase cable. The relationship between the current and cross-sectional area is shown in Table 32.
Chapter 3 Electrical Assembly Battery cables UPS input UPS output input N output N Fig. 3-1 20/30kVA UPS bottom cable output Battery cables Rectifier input Bypass input Bypass N UPS output Output N Fig. 3-2 40/60kVA UPS cable connection at bottom 2. Cable routing 1. Bottom entry configuration – the cables are input and output from the bottom of the UPS 2. Top entry configuration – the cables are input and output from the top of the UPS.
Chapter 3 Electrical Assemble 3. Cable connection Note All the switches should be switched off during cable connection. 1. Feed cables Feed cables according to the cable entry mode, with reference to Figures 2-7, 2-8, 3-1, 3-2 2. Assembling cable lugs to cables First strip the insulation layer 20 mm from the end. Then insert the conductor into the cable lug. Then press the cable lug against the cable till tight.
Chapter 3 Electrical Assembly Wire terminal Input power cable Parallel power cable Fig. 3-3 Power cable connection of One branch utility source 5. Connect the Load to the U, V, W terminals of UPS output breaker Q5. 6.Connection of battery cables The positive and negative cables of batteries are connected to the Positive and Negative terminals of JX3 respectively. 7. Connection of Neutral cable The neutral cable of bypass source is connected to the JX5 copper bar, that is marked with “N/INPUT”.
Chapter 3 Electrical Assemble 4. Earthing Method The UPS rectifier source has no neutral cable. The bypass and output source have neutral cables and the input and output neutral cables are short circuited. The lightning protection earth PE and the protection earth of the cabinet are connected as shown in Figure 3-5. The user can decide whether to use a connection cable according to his earthing requirement. PE for lightning protection PE inside cabinet Protective earth Fig.
Chapter 3 Electrical Assembly Fig. 3-6 Layout of signal cables of 20/30/40/60kVA UPS 2. Connection method 1.Parallel connection method Open the door of the UPS to see a circuit board ULW2L61M3. On the board, 15pin connectors P1 and P2 are used to connect the parallel logic cables. 9-pin connectors P3 and P4 are used for connecting the load sharing cables. Each UPS system has two pieces of 15 meters length cables. Parallel logic cable Parallel load sharing cable Fig.
Chapter 3 Electrical Assemble 2.Connection of serial connection cables The monitoring board ULW2L61U2 is shown in Figure 3-8, where the locations of RS232, RS485 and input and output contacts are marked. The user can connect the cables with reference to this board. communication cable RS485- C.C. for generator power N.O. for generator power N.O. for over load N.C. for generator power C.C. for over load C.C. for common alarm N.O. for common alarm N.C. for over load N.C. for emergent stop N.O.
Chapter 3 Electrical Assembly 2) Connection of modem MODEM or SNMP Monitoring board SNMP cables SNMP cables Monitoring board MODEM or SNMP 40/60kVA Front view when right door is opened 20/30kVA Front view when Front door is opened Fig. 3-10 Installation of MODEM or SNMP 1. Figure 3-10 shows the location of Modem and SNMP card. Before installing the modem, the user should remove the iron box use for SNMP card and installed the modem there.
Chapter 3 Electrical Assemble 3）Connection of SNMP Card Installation of SNMP card Unpack the SNMP card and place it in the iron case shown in Figure 3-10 Connect the cables On the monitoring board, there is a jack J22 with a cable to plug in directly to the SNMP card, after the SNMP Card is installed. Please do not remove this cable even if the SNMP card is not used. 4）Connection of RS485 Connector J23 on the monitoring board is the RS485 communication port.
Chapter 3 Electrical Assembly Table 3-4 Definitions of input/output contacts Connector Name of contacts Board name input/output BLV-C output Central contacts for battery low alarm BLV-S output Normally open contacts battery low alarm BLV-O output Normally closed contacts for battery mode BAT-C output Central mode BAT-S output BAT-O output Normally closed contacts for inverter mode INV-C output Central mode INV-S output INV-O output Normally closed contacts for ambient over-temp
Chapter 3 Electrical Assemble Connector Name of contacts Board name input/output OVR-S output OVR-O output Normally closed contacts for generator mode GEN-C output Central contacts for generator mode GEN-S output Normally open generator mode GEN-O output +24V power for environmental signal +24V power output 24V power for environmental signal 1 ENV1 connect to dry contacts 24V power for environmental signal 2 ENV2 connect to dry contacts 24V power for environmental signal 3 ENV3
Chapter 3 Electrical Assembly 4. Battery Temperature detection cable When the user select the temperature compensation technology, he should select the TMP12Z sensor that is installed inside the battery cabinet or battery room. Use a cable to send a temperature signal to J15 on the monitoring board. Shield cable is recommended to be used because the transmission distance is long. The location of the temperature sensor is shown o Figure 3-13. Fig. 3-13 Dry Contact 1. Circuit Breaker QF1 2.
Chapter 4 Commissioning of UPS Chapter 4 Commissioning of UPS 4.1 Startup Procedure 4.1.1 Explanation of Circuit Breakers From the layout of Figure 1-3 and Figure 1-4, the startup of UPS has connections with the following circuit breakers Q1 : Connects rectifier to Utility source Q2 : Connects bypass to Utility source Q5 : Connects UPS output to the Load Q3BP : Connects bypass input source to the load switch QF1 : Battery Circuit Breaker 4.1.
Chapter 4 Commissioning of UPS Step 5 : After the UPS transfers from bypass to inverter, the bypass indicator turns off, and the inverter and the load indicator turns on. The transfer may fail if the phase rotation of bypass and inverter output are different. During operation, if the AC power recovers after failure, the rectifier will restart automatically after some time. If the UPS transfer to generator power, the monitoring system will determine the quality of the generator supply.
Chapter 4 Commissioning of UPS UL33-0400L 2001-11-08 12:50:30 Inv. On Units 2/4 ID: 1 Language Chinese Out Chinese English Local System Com. Adress Set 1 1 Battery Records Date & Time Set 2001£ -11£ -08 12:50:30 Settings Input Breaker Closed 11£ -08 12:09 Byp. Breaker Closed 11£ -08 12:09 Mains Volt. Abnormal UPS in Battery Mode Battery low 11£ -08 12:28 11£ -08 12:28 11£ -08 12:50 m Fig.
Chapter 4 Commissioning of UPS UL33-0400L 2001-11-08 12:50:30 Inv. On Units 2/4 ID: 1 ʶ Ö µ̄ Mode ç³ × ØÔ ¼Set ì Comm. RS232 Out MODEM RS232 Local Comm. Baudrate Set 9600 System 9600 4800 2400 1200 Battery Callback Times Set 3 Records 3 Settings Input Breaker Closed 11£ -08 12:09 Byp. Breaker Closed 11£ -08 12:09 Mains Volt. Abnormal UPS in Battery Mode Battery low 11£ -08 12:28 11£ -08 12:28 11£ -08 12:50 m Fig.
Chapter 4 Commissioning of UPS 4.3.1 Check the function of the display panel Press the button “inverter shutdown” for 2 seconds and check that the inverter stops. Rectifier indicator Bypass indicator Inverter indicator Battery indicator Load indicator Alarm indicator Emergency shutdown UL33-0400L 2001-11-08 12:50:30 UL33-0400L 2001-11-08 12:50:30 Inv.
Chapter 4 Commissioning of UPS 1. Switch from normal mode to battery mode. Switch off Q1 to enter battery mode and after a few seconds, switch on Q1 again to return to normal mode 2. Press “inverter shutdown” button to switch to bypass mode. After a short while, start inverter again to return to normal mode. 3. In bypass mode, switch on Q1 and press “inverter start” button after the rectifier starts. The UPS should switch to normal mode. 4. Switch from normal mode to maintenance bypass mode.
Chapter 5 Operation of Display Panel Chapter 5 Operation of Display Panel 5.1 Display panel 5.1.1 Layout of Display Panel The display panel of the UPS is shown in Figure 5-1.
Chapter 5 Operation of Display Panel Rectifier indicator Bypass indicator Inverter indicator Battery indicator Load indicator Alarm indicator Emergency shutdown UL33-0400L 2001-11-08 12:50:30 UL33-0400L 2001-11-08 12:50:30 Inv. On Units 2/4 ID: 1 Äæ ± ¿ ä Æ ª ô ² ¢ » ú Ì Ê̈ ý 2/4 Language Chinese Out A(B) B(C) C(A) Ö ÷ ·Ê ä Èë Chinese English Local à çÑ ¹V 221 220 221 ÅÔ Â ·Ê ä Èë Ï µ System Com. Adress Set 1 ½Battery Á÷ » Êä ³ ö µ ç Á ÷1A 11.8 12.3 Ê z 50.2 50.1 50.
Chapter 5 Operation of Display Panel Flashing Green – End of battery discharge Red – Battery Abnormal (overtemp, low battery, contactor fused) Off – Battery Normal but not in operation Inverter LED Green – Inverter powers the load normally Flashing Green - Inverter standby Red – Inverter Fails Off – Inverter Normal but not in operation Load LED Green – UPS output on Red – UPS shuts down due to overload Orange – UPS overload Alarm LED: If the red LED turns on, that means the system itself has fault; If gree
Chapter 5 Operation of Display Panel 5.1.4 Alarm Buzzer If there is no alarm sound, it means that either the alarm is muted or the system is not in a fault condition There are three types of sound from the buzzer 1.Single click - The sound can be heard when any button is pressed 2. 1 sec click with a 2 secs interval - when system has common fault or alarm 3. Continuous alarm – when system has serious faults Press Mute button to silence alarm. 5.1.5 LCD and Menu Keys There are four menu keys 1.
Chapter 5 Operation of Display Panel Menu Display Window Current event window UL33-0400L 2001-11-08 Inv. On Units: A(B) Mains Bypass Vphase 221 Iphase A 11.8 Output Freq.Hz 50.2 Local 0.99 System P.F. Vline V 381 Battery 12:30:20 ID 1 B(C) C(A) 220 221 12.3 12.5 50.1 50.1 0.99 0.99 380 382 Input Breaker Close 11£ Byp. Breaker Close 11£ Output Breaker Open 11£ UPS in Normal Mode 11£ Batt.
Chapter 5 Operation of Display Panel 5.2 The displayed information 5.2.1 Opening display At power up of the UPS, the opening display is shown in Figure 5-5. Fig. 5-5 Opening Display 5.2.2 Main Menu Display After the UPS is power up and self test is completed, the main menu will be displayed, as shown in Figure 5-6. Use the arrow-up and arrow-down key to scroll the menu and the history log. UL33-0400L 2001-11-08 Inv. On Units: A(B) Bypass Power KW221 Out Cap. KVA 11.8 Local Load% 50.
Chapter 5 Operation of Display Panel *********************************** *------------------------------------------------------------------* *----------------Emerson Network Power-----------------* *------------------------------------------------------------------* * UPS version£ º 1.00 * * UPS model£ º itrust0400L * * UPS type£ º Single normal * * UPS ID£ º NO.3 * * Rectifier version£ º 1.00 * * Inverter version£ º 1.00 * * Monitor version £ º 1.
Chapter 5 Operation of Display Panel UL33-0400L 2001-11-08 Inv. On Units: A(B) Mains Vphase 221 Bypass Iphase A 11.8 Output Freq.Hz 50.2 Local 0.99 System P.F. Battery 12:30:20 ID 1 B(C) C(A) 220 221 12.3 12.5 50.1 50.1 0.99 0.99 Input Breaker Close 11£ Byp. Breaker Close 11£ Output Breaker Open 11£ UPS in Normal Mode 11£ Batt. Boost Charging 11£ 12:09 12:09 12:09 12:09 12:09 -08 -08 -08 -08 -08 Fig.
Chapter 5 Operation of Display Panel AC Output - displays three phase line-neutral voltage, line current, frequency, power factor and line-line voltage, as shown in Figure 5-11 UL33-0400L 2001-11-08 Inv. On Units: A(B) Mains Vphase 221 Bypass Iphase A 11.8 Output Freq.Hz 50.2 Local 0.99 System P.F. 381 Vline V Battery 12:30:20 ID 1 B(C) C(A) 220 221 12.3 12.5 50.1 50.1 0.99 0.99 380 382 Input Breaker Close 11£ Byp. Breaker Close 11£ Output Breaker Open 11£ UPS in Normal Mode 11£ Batt.
Chapter 5 Operation of Display Panel UL33-0400L 2001-11-08 Inv. On Units: Mains Bypass Output Local System Battery 12:30:20 ID 1 Batt. Volt V 423 Batt. Curr. A 4.56 Batt. Temp. C 23.2 Batt. Boost Charging Input Breaker Close 11£ Byp. Breaker Close 11£ Output Breaker Open 11£ UPS in Normal Mode 11£ Batt. Boost Charging 11£ -08 -08 -08 -08 -08 12:09 12:09 12:09 12:09 12:09 Fig. 5-14 Displaying LCD at equalization charging state UL33-0400L 2001-11-08 Inv.
Chapter 5 Operation of Display Panel UL33-0400L 2001-11-08 Inv. On Units: Mains Bypass Output Local System Battery 12:30:20 ID 1 Batt. Volt V 423 Batt. Curr. A 4.56 Batt. Temp. C 23.2 Backup Time Sec 176 Input Breaker Close 11£ Byp. Breaker Close 11£ Mains Volt. Abnormal 11£ UPS in Battery Mode 11£ 11£ Battery Low -08 -08 -08 -08 -08 12:09 12:09 12:25 12:25 12:50 Fig.
Chapter 5 Operation of Display Panel 5.3 Function Setup In the Menu Display Window select “Function Setup”, pressing F1 key to switch the present window to Measuring and Setup Window and modify each settable items. Pressing F3 key can scroll through all the settable items (total number of the settable items is 12). Pressing F4 to modify and confirm the set parameters. If need no setup, press F1 to exit the current window. UL33-0400L 2001-11-08 12:50:30 Inv.
Chapter 5 Operation of Display Panel 5.3.2 Address setup According to the information displayed on Fig.5-22, select the “Equipment Address Setup” and pressing F3(UP) or F2(DOWN) to modify the address of the equipment, and then pressing F4 to confirm and exit. If you do not want to modify the language, pressing F1(ESC) to escape. UL33-0400L 2001-11-08 Inv. On Units 2/4 12:50:30 ID: 1 Language Chinese Out Chinese English Local System Com.
Chapter 5 Operation of Display Panel UL33-0400L 2001-11-08 Inv. On Units 2/4 Out Local System Battery Records Settings Language Chinese 12:50:30 ID: 1 Chinese English 1 Com. Adress Set c 1 Date & Time Set 2001£ -11£ -08 12:50:30 Input Breaker Closed 11£ -08 12:09 Byp. Breaker Closed 11£ -08 12:09 Mains Volt. Abnormal UPS in Battery Mode Battery low 11£ -08 12:28 11£ -08 12:28 11£ -08 12:50 m Fig. 5-24 Setup the date 1 Pressing F4 to let the date to be able to be modified, as shown in Fig.
Chapter 5 Operation of Display Panel After escaping the modification state, the date displayed by the UPS basic information window has become a new date. Then use F2 (move left) and F3 (move right) keys to move the cursor to the location of “second”, as shown in Fig. 527. UL33-0400L 2001-11-08 Inv. On Units 2/4 Out Local System Battery Records Settings Language Chinese 12:50:30 ID: 1 Chinese English c 1 Com.
Chapter 5 Operation of Display Panel UL33-0400L 2001-11-08 Inv. On Units 2/4 Out Local System Battery Records Settings Language Chinese 12:50:30 ID: 1 Chinese English Com. Adress Set 1 c 1 Date & Time Set 2001£ -11£ -09 12:50:20 Input Breaker Closed 11£ -08 12:09 Byp. Breaker Closed 11£ -08 12:09 Mains Volt. Abnormal UPS in Battery Mode Battery low 11£ -08 12:28 11£ -08 12:28 11£ -08 12:50 ok Fig.
Chapter 5 Operation of Display Panel UL33-0400L 2001-11-08 12:50:30 Inv. On Units 2/4 ID: 1 Ê ¶ Ö µ̄ ç ³ × Ø Ô ¼ ì Manual Batt Test Out Stop Start Local Display contrast adjust System Battery Record Query Range 3 days Records 0: all records Settings Input Breaker Closed 11£ -08 12:09 Byp. Breaker Closed 11£ -08 12:09 Mains Volt. Abnormal UPS in Battery Mode Battery low 11£ -08 12:28 11£ -08 12:28 11£ -08 12:50 m Fig. 5-31 Manual battery self test 5.3.
Chapter 5 Operation of Display Panel UL33-0400L 2001-11-08 12:50:30 Inv. On Units 2/4 ID: 1 ʶ Ö µ̄ ç³Batt Ø × Ô ¼Test ì Manual Out Stop Start Local c Display contrast adjust System Battery Record Query Range 3 days Records Settings 0: all records Input Breaker Closed 11£ -08 12:09 Byp. Breaker Closed 11£ -08 12:09 Mains Volt. Abnormal UPS in Battery Mode Battery low 11£ -08 12:28 11£ -08 12:28 11£ -08 12:50 ok Fig. 5-33 History log 5.3.
Chapter 5 Operation of Display Panel UL33-0400L 2001-11-08 12:50:30 Inv. On Units 2/4 ID: 1 ÊÖ ¶ µ̄ Mode ç³ Ø × Ô ¼Set ì Comm. RS232 Out MODEM RS232 Local Comm. Baudrate Set 9600 System 9600 4800 2400 1200 Battery Callback Times Set 3 Records 3 Settings Input Breaker Closed 11£ -08 12:09 Byp. Breaker Closed 11£ -08 12:09 Mains Volt. Abnormal UPS in Battery Mode Battery low 11£ -08 12:28 11£ -08 12:28 11£ -08 12:50 m Fig. 5-34 Background communication 5.3.
Chapter 5 Operation of Display Panel UL33-0400L 2001-11-08 Inv. On Units 2/4 ÊÖ ¶ µ̄ Call ç³ Ø × No. ¼ Ôì1 Phone Out Local ******************* Phone Call No. 2 System ******************* Battery Phone Call No. 3 Records Settings ******************* 12:50:30 ID: 1 c Input Breaker Closed 11£ -08 12:09 Byp. Breaker Closed 11£ -08 12:09 Mains Volt. Abnormal UPS in Battery Mode Battery low 11£ -08 12:28 11£ -08 12:28 11£ -08 12:50 m Fig.
Chapter 5 Operation of Display Panel Move the cursor to the corresponding bit to modify the number and confirm, then the 0755 8787001 can be set, fill in the “*” character in other blank bits, as shown in Fig.5-39. Pressing F1(ESC) to exit the setup of the fault call-back number 1. Other fault call-back numbers will be set in the same way. At the moment, all the 12 setting items are finished. UL33-0400L 2001-11-08 12:50:30 Inv. On Units 2/4 ID: 1 Ê ¶ Ö µ̄ ç ³ × Ø ¼ Ô ì Phone Call No.
Chapter 5 Operation of Display Panel UL33-0400L 2001-11-08 12:30:20 Inv. On Units: ID 1 A(B) B(C) C(A) Mains Bypass Power KW221 220 221 12.3 12.5 with Interupt Cap.Transfer KVA 11.8 Out , Confirm Load% 50.2 50.1 50.1 Local System Crestor 1.41 1.40 1.41 Battery Factor Input Breaker Close 11£ Byp. Breaker Close 11£ Output Breaker Open 11£ UPS in Normal Mode 11£ Batt. Boost Charging 11£ -08 -08 -08 -08 -08 12:09 12:09 12:09 12:09 12:09 OK Fig.
Chapter 5 Operation of Display Panel UL33-0400L 2001-11-08 12:30:20 Inv. On Units: ID 1 A(B) B(C) C(A) Mains Bypass Power KW221 220 221 operation leads 12.5 11.8 12.3 Cap.This KVA Out to overload, Confirm 50.1 Load% 50.2 50.1 Local or cancel System Crestor 1.41 1.40 1.41 Battery Factor Input Breaker Close 11£ Byp. Breaker Close 11£ Output Breaker Open 11£ UPS in Normal Mode 11£ Batt. Boost Charging 11£ -08 -08 -08 -08 -08 12:09 12:09 12:09 12:09 12:09 C OK Fig.
Chapter 5 Operation of Display Panel UL33-0400L 2001-11-08 12:30:20 Inv. On Units: ID 1 A(B) B(C) C(A) Mains Power KW 221 220 221 Bypass The Load is Too 12.3 12.5 11.8 KVA Cap. Out Heavy to Be Load% 50.2 50.1 50.1 Local Transferred System Crestor 1.41 1.40 1.41 Battery Factor Input Breaker Close 11£ Byp. Breaker Close 11£ Output Breaker Open 11£ UPS in Normal Mode 11£ Batt. Boost Charging 11£ -08 -08 -08 -08 -08 12:09 12:09 12:09 12:09 12:09 Fig.
Chapter 5 Operation of Display Panel Table 5-3 UPS Events No.
Chapter 5 Operation of Display Panel Table 5-4 UPS states No.
Chapter 6 Maintenance Chapter 6 Maintenance This chapter mainly introduces the daily using and maintenance of UPS and the operation inside the UPS is not covered here. If maintenance should be done to the UPS, Q1, Q2 and QF1 should be disconnected, and then wait for 8 minutes until there is no high voltage inside the UPS. Don’t touch any components of the UPS before reading this manual. Anything not understood, please consult out technical support engineer. 6.1 Setup procedures 6.1.
Chapter 6 Maintenance 6.1.2 Shutdown 1. Shutdown in normal mode When the UPS requires periodical checking or needs to stop operation, the shutdown process in normal mode is given below: 1.Press the “inverter shutdown” button on the UPS panel for longer than two seconds, shutdown the inverter and the system transfers to bypass mode. 2.Switch off the Q1 and QF1 one by one; At this time the load is powered by bypass.
Chapter 6 Maintenance 5. Shutdown in United powering mode The procedures of shutdown in United powering mode is the same with those of shutdown in normal mode. 6.1.3 Transferring between operation modes The UPS can transfer among various operation modes after it is in normal mode. The following operations can be done if the input power source of UPS meets the requirements and the load capacity is lower than that of single module UPS system. 1.
Chapter 6 Maintenance begins to power the load. Press the “inverter start” if the user wants the inverter to operate. 6.1.5 Mute The buzzer sounds when the UPS has faults. The user can press the “Mute” button for two seconds to silence the sound. If the user press the key again, the sound can be heard again. When the UPS is in fault clear state, new fault may cause the buzzer to sound again. 6.1.6 Fault clear 1.
Chapter 6 Maintenance 6.1.7 Monitoring system 1. Background communication The monitoring system of this UPS system provides one RS232 port and one RS485 port (the definition of the port is in Section 3.4.3), several input and output dry contacts (refer to Section 3.4.4). The user can introduce the signal to the nearest management office to conduct equipment management. All the data displayed on the panel will be monitored by background monitoring software.
Chapter 6 Maintenance 2. Monitoring single UPS UPS support the communication modes through RS232, RS485, MODEM and SNMP card. These communication modes can’t be used by one same UPS. The single UPS monitoring theory is shown in Fig.6-1. Fig. 6-1 Monitoring of Single UPS 3. Monitoring parallel operation system The communication of parallel operation system is realized through its internal RS485 bus. Any UPS module can be nominated as a master UPS.
Chapter 6 Maintenance 6.1.8 Input and output contacts The functions of input and output contacts are introduced in Chapter 3. 1.
Chapter 6 Maintenance Emergent stop: If the user is in short distance, short connecting the “UCTRH” and “UCTRL” can make the UPS shut down. Relay dry contacts should be used here. Note: The user should be careful when using this function. The power will be interrupted completely once the emergency shutdown happens. When the user connects the wires, the length of the wire should be no longer than 10m. Protection measures should be done to the wire if the length of the wire is longer than 10m. 6.1.
Chapter 6 Maintenance 5）Check whether all the fans operate normally. The life of the fan in continuous operating state is 20000—40000 hours and will be shortened if the fan operates in high temperature environment. 2.
Chapter 6 Maintenance Cable and connectors: Check whether the cable is aged, damaged or burnt; check whether the connector of the PCB is secure; PCB: Check the cleaness and completeness 7）Use vacuum pump to clear the dirt on the surface; 8）Switch on the UPS again and let the inverter powers the load according to the start-up process of UPS; 9）If necessary, switch off the Q1, check the battery backup time, switch on Q1 when the battery voltage is higher than the end of discharge voltage by 5V(Note: The end
Chapter 6 Maintenance 3）Keep the ambient temperature between 15℃ and 25℃. 4 ） To prevent small current discharge, continuous battery discharge time exceeding 24 hours is prohibited. 5）Please contact the distributor if the battery backup time is greatly shortened, or the UPS LCD displays “battery needs to be replaced”. Confirm whether the battery needs to be replaced. Please confirm whether the parameters of the replaced battery and new battery are same.
Chapter 6 Maintenance system will not start battery self test if the last self-test interval satisfies the “battery discharging interval”, but does not satisfy the manual self test condition, and the system will wait until the conditions are satisfied. 6.2.3 Shutdown maintenance For large capacity UPS, periodical checking is required to ensure the normal operation and proper condition. Notify us if any fault is found.
Chapter 7 Troubleshooting Chapter 7 Troubleshooting 7.1 UPS system troubleshooting The following information are only for service engineers who are trained in the repair and troubleshooting of the UPS. The maintenance engineer must be familiar with the UPS because the UPS is rather complicated. 7.1.1 Basics Generally, the UPS faults happen suddenly and the UPS will be shutdown or transfer to bypass mode. So making record is very important for maintenance.
Chapter 7 Troubleshooting Rectifier indicator: If it turns red, that means the rectifier fails; Battery indicator: If it turns red, that means the battery is abnormal; Inverter indicator: If it turns red, that means the inverter fails; Load indicator: If it turns red, that means overload occurs; Alarm indicator: If it turns red, that means the system fails; 7.2.2 LED indicator of lightning protection device Fig.
Chapter 7 Troubleshooting 7.4 LCD indication for fault information The LCD on the UPS displays the fault information of Table 7-1 and Table 7-2. The user should locate and analyze the fault according to the tables and feedback the fault information to our service engineers. Table 7-1 Fault information No.
Chapter 7 Troubleshooting No.1 Fault description Reason Actions to be taken Bypass voltage or frequency is out of normal range and inverter output Check the bypass voltage and frequency is not synchronized with the bypass output. 15 Bypass unsynchronized 16 Bypass voltage or frequency Bypass ratings exceed exceeds the normal range and the Check the bypass voltage and frequency the normal range bypass will not power the load anymore.
Chapter 7 Troubleshooting No.
Chapter 7 Troubleshooting No.
Chapter 8 Parallel System Chapter 8 Parallel System 8.1 System Introduction 8.1.1 Basics The Liebert UPS uses intelligent and reliable decentralized parallel operation technology. A maximum of four single units of the same capacity can operate in parallel. The UPS system has two paralleling modes: Paralleling for redundancy Paralleling for capacity 1.
Chapter 8 Parallel System UPS in the system, and operation condition of each unit can be monitored through the remote computer. 8.1.2 Theory of Operation 1. Parallel System consisting of two units This is the most frequently used configuration and its operation theory is shown in Figure 8-1 Fig. 8-1 UPS parallel operation mode(two UPS modules) 2. Paralleling for Redundancy of more than two units (N+X) system : N number of UPS is supporting the load and X number of UPS are redundant.
Chapter 8 Parallel System Fig. 8-2 Redundancy operation mode This system can improve the system reliability noticeably. In normal condition, each UPS does not work at full load, so even if the load is increased, the system will not transfer to bypass. When X number of UPS shuts down due to failure, the remaining N numbers of UPS can still powers the load. At this time, the system will give out the alarm. 3.
Chapter 8 Parallel System Fig. 8-4 Series backup mode Note The default value of alternative operation time is 168 hours and the range is 0-4320 hours 8.1.3 Operation modes The parallel operation system also has operation modes such as normal mode, battery mode, bypass mode and maintenance bypass mode. All the UPS units inside the parallel operation system should operate in harmony. For example if one UPS is in inverter mode, the bypass of other units should be shut down.
Chapter 8 Parallel System Maintenance mode: The condition to transfer to maintenance mode is same with that of single module UPS system. The maintenance switches should be switched on synchronously as possible. Thus the system can be repaired without interrupting the power supply to load. 8.2 Installation The installation method of parallel operation system is the same with that of single module UPS system.
Chapter 8 Parallel System 8.2.2 Electrical installation 1. Power cables Wiring of power cables is the same with that of single module UPS system. Note: The length and specifications of power source cables including the bypass input and UPS output cables should be the same, thus the load can be shared evenly in bypass mode. 2. Signal cables Wiring of signal cables is the same with that of single module UPS system. Parallel connection cables should be connected.
Chapter 8 Parallel System 8.3 External Power Distribution Parameters such as maximum permissible input current (In is the rated input current) of each UPS, capacity of input circuit breaker(suitable for rectifier input and bypass input) are given in Table 3-5. It is recommended that the input power source of each UPS unit should be input to its own circuit breaker in the switchgear. The battery group shouldn’t be shared among the UPS units.
Chapter 8 Parallel System Code setup: Each UPS unit has its own code, and set the codes of each UPS unit as 1, 2, 3 .n(n 8) one by one; Set the number of UPS units N and number of redundancy UPS units X: If there is M UPS units in the system, if the system is the paralleling system for capacity expansion, then M=N, X=0; In redundancy system, M=N+X, Xƒ1. The settings of N and X should take the actual load capacity into considerations.
Chapter 8 Parallel System When switching on the parallel system, external maintenance bypass switch KBP is recommended be equipped to maintain the power supply to load in case of UPS shutdown due to failure or maintenance. Before switching on the UPS, all the circuit breakers but the KBP should be disconnected, the utility powers the user’s load directly. 1. Switch on the internal bypass maintenance switch Q3BP of the UPS; 2. Disconnect KBP; 3. Switch on the Q2 and Q5 of each UPS unit; 4.
Chapter 8 Parallel System 1. Press the “inverter shutdown” to shut down the inverter and the system transfers to bypass mode; 2. Switch off each UPS unit’s Q1 and the QF1 of battery cabinet; 3. Switch on each UPS unit’s Q3BP； 4. Switch on each UPS unit’s Q2 and Q5； AT this time, the user’s load is totally dependent on the maintenance bypass of the UPS; Common checking or maintenance work can be done after waiting for 8 minutes( that is, after the DC bus capacitor discharges to zero voltage).
Chapter 8 Parallel System 2. Normal mode to bypass mode Press the “inverter shutdown” button on the UPS panels one by one, all the UPS can transfer to bypass mode. In the above operation, if the total capacity of all the inverters is smaller than the load capacity, all the UPS unit will transfer from normal mode to bypass mode. 3.
Chapter 8 Parallel System Note At this time, the input and output terminals of this failed UPS unit are still energized. Switch off the unit’s input and output circuit breakers if these terminals may be touched during maintenance. 2.
Chapter 8 Parallel System This figure only shows the connection method of control cables of parallel operation system with 3 UPS units. The others can be done according to the same methods. 1 2 3 4 1 2 3 4 Emergency stop button 1 2 3 4 Fig. 8-6 Emergency shutdown button Where, “1”-Normally closed contacts for emergency shutdown “2”- Central contacts for emergency shutdown “3”- Normally open contacts for emergency shutdown “4”- Normally closed contacts for common alarm 8.5.
Chapter 8 Parallel System Table 8-3 Fault and fault process methods of parallel operation system No.
Chapter 9 Optional Parts Chapter 9 Optional Parts 9.1 Battery 9.1.1 Capacity selection Calculate the discharging current according to rated load capacity and then select the battery according to the current and the battery backup time required by user. There are various specifications of battery, we recommend that 30 12V battery cells should be connected in series to form a battery string. The capacity of battery cell can be 38Ah, 65Ah and 100Ah.
Chapter 9 Optional Parts 9.2 Battery cabinet 9.2.1 External Dimensions The UPS system has two kinds of battery cabinets that are UF-B0100-30 and UFB0065-30 respectively. The External Dimensions are given in Fig. 9-1 and Fig. 9-2 respectively. The structural parameters are given in Table 9-3.
Chapter 9 Optional Parts 4 fixing holes 4 fixing holes 4 levelling bolts 4 levelling bolts Fig. 9-2 Positions of leveling feet of battery cabinet 9.2.2 Installation of battery cabinet The requirements for the locations of battery cabinet are the same with those of UPS cabinet, so are the installation and fixing methods. Install the cabinet with reference to the Fig. 9-1 and 9-2 and Fig. 2-5. The battery cabinet exerts its weight on the floor through four leveling bolts(40mm diameter).
Chapter 9 Optional Parts Layout for No.2~4 floors General Layout Layout for No.1 floors Fig.9-3 Battery layout inside battery cabinet UF-B0100-30 can hold 30 12V/100Ah maintenance free batteries. The voltage can be 360V after the batteries are connected in series. The batteries are placed in 4 floors as shown in Fig.9-4. Follow the steps below to connect the batteries between different floors and connect the battery switch: Front view 30 12V battery cells output switch filter inductor Fig.
Chapter 9 Optional Parts a. Unpack the battery, measure the battery voltage, charge the battery before installation if the single battery cell voltage is lower than 2.13V(each battery has 6 cells, 12.8Vdc); b. Open the front door, remove the back door and cover, switch off all the battery switches, clear the battery cabinet and take out the accessories(battery connection cables, cable sleeves and nylon fastener)inside the cabinet; c.
Chapter 9 Optional Parts provided by battery manufacturer. The battery output circuit breaker should be made separately. The method is used if the required backup time is longer than 2 hours. l. The connection cables between battery and UPS will not be provided in accessories. Refer to Table 3-2 in Chapter 3 to select the battery cables. 9.3 SNMP Card and the Software UPS SNMP card UF-SNMP111 is inserted into the slot for SNMP card in the UPS.
Chapter 9 Optional Parts Support SNMP, HTTP, TFTP and Telnet protocols and can monitor the UPS through the UPS network monitoring software (UPSiteCenter), NMS and Web explorer（IE and Netscape）. The SNMP card can be upgraded online; Provide the computer safety protection functions. Provide the computer safety shutdown software for Windows, UNIX and Linux together with SNMP card. In case of utility source abnormal and battery depletion, the shutdown software will shut down the computer to protect it.
Chapter 9 Optional Parts b. Set up the fault call-back parameters. The monitoring system can realize fault call-back functions through the MODEM. When the UPS has fault, it will dial the user automatically and require actions. 9.6 Temperature sensor TMP12Z TMP12Z temperature sensor is an ambient temperature detection device developed by Avansys. Its operation voltage is 12V, the detected temperature range is 0~100℃, and output signal is 1~5V. Fig.
Chapter 9 Optional Parts 9.7.1 Introduction of SPD24Z The SPD24Z lightning protection box has a switch(3) on its panel, a lightning protection indicator(green, 1) and fault indicator（red,2）. Its top cover has 3 holes for cable input（I～III） and its bottom has 3 holes for cable output. Its rear side has two holes for fixing the device, as shown in 9-7. Panel Back Top Figure 9-7 Outline of SPD24Z 9.7.2 Installation procedures of SPD24Z Procedures: a.
Chapter 9 Optional Parts h. Check whether the cables are well connected. i. Use a 4mm2 cable to earth the lightning protection device. j. Close the cover. Note 1. All operations should be done with power off and confirm there is no dangerous voltage on the neutral line。 2. Connect two pieces of PE cables from the lightning protection device. One cable is connected to the case of the UPS, the other one is connected to earth（shorter than 30m, as short as possible）. 3.
Chapter 9 Optional Parts 9.7.3 Using and Maintenance 1. Ambient condition a. Ambient temperature ranges from -40℃ to 40℃; b. Elevation lower than 1000m; c. The utility frequency is 45～65Hz; d. The highest wind speed not exceed 35m/s. 2. Maintenance 1) The lightning protection device operates normally if the green indicator illuminates while the red indicator is off; 2) If the green indicator is off while the red indicator illuminates, that means the circuit breaker is switched off.
Chapter 10 Service after Sales Chapter 10 Service after Sales 10.1 Abnormal Fault Handling If the UPS is abnormal without alarm indication, check according to Table 10-1. Table 10-1 Fault handling No.1 1 Fault description Utility switch is put to “ON”, no display by LCD, no self test of system Reason A. Input power is disconnected from system Actions to be taken Check the input voltage B.
Chapter 10 Service after Sales Table 10-2 Fault information of Single module UPS system No.
Chapter 10 Service after Sales No.1 Fault description 16 Battery needs to be replaced 17 No battery 18 Pre-alarm for end of battery discharging Reason Actions to be taken The battery life is reduced due to aging, which may endanger the Notify the service dept for replacing the normal operation of UPS. Warn battery and set the battery model and the user that the battery is parameters through software. abnormal and needs to be replaced. Batteries are not connected.
Chapter 10 Service after Sales No.
