Please note and refer to warning marks which you will find in the unit.

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2 Table of contents 1.0 Preface Introduction Safety Note and Precaution System structure System Diagram of DS-C System assembly and parts layout Introduction on function of main module System operation mode Panel function Status indication on LED panel Function Key LCD Panel description Placement and installation Placement Installation Operation procedure Start up procedure Shut down procedure Maintenance procedure System recovery from maintenance procedure Introduction to LCD front panel and illustration of each function Emergency shut down procedure Maintenance Specifications DS-C33 Series troubleshooting Simple troubleshooting for rectifier/charger Simple troubleshooting for Inverter Simple troubleshooting for system function

3 1 Preface 1-1 Introduction DS-C33 series UPS is one of the industry s most reliable and stable power protection equipment. It is fully controlled by DSP (Digital Signal Processor) to ensure high performance and worry free operation in protecting your valuable equipment from power disturbances. This makes the DS-C33 series UPS fully compatible for use in computer, precision instrument, banking, manufacturing, and other mission critical applications. 1-2 Safety Note and Precaution Please note and refer to warning marks which you will find in the unit. Don t touch Risk of electrical shock Areas with the Risk of electrical shock mark indicate 410VDC high voltage. Do not touch the parts with this mark.

4 2 System structure 2-1 System Diagram of DS-C33 (12) (5) (7) S6 S2 Utility 2 Utility 1 S3 S5 Load S1 S4 - + Battery Pack (1) (2) (3) (4)(13) (6) (8) (9) (10) (11) fig. 2-1 (1) Main power switch (S3) (2) Input protection (3) Three phase alternating current power inductor (4) Rectifier / battery charger module (5) Direct current power inductor (6) Battery fuse switch (S4) (7) Manual bypass switch (S6) (8) Inverter module (9) Isolation transformer (10) Static switch module (11) Output switch (S5) (12) Bypass power switch (S2) (13) Start up auxiliary switch (S1) Note : (1)The UPS input can be powered from a single utility source or by dual utility sources. (2)Dual utility input is optional.

5 2-2 System assembly and parts layout Drawings 2-2A and 2-2B are the assembly diagrams of DS-C33 series 100K, 120K Fan INV Module INV/Driver Board DSP Control Board Communication Port Input AC Choke AC Power Sensor Board System Power Board AS-400 Interface Card S2/S1 Switch S3 Switch S6/S5 Switch Input/Output Terminal S4 Switch System Transformer S4 Battery Fuse Fig. 2-2A

6 Rectifier/Charger Module Rectifier/Charger Control Board 12 Pluse Power Sensor Board Fan DC Capacitance Static Switch Control Board Input Relay Power Board Static Switch Module Input Relay Module DC Choke INV Transformer Fig. 2-2B

7 Drawings 2-2C and 2-2D are the assembly diagrams of DS-C33 series 45K, 60K, 80K Fig. 2-2C

8 Fig. 2-2D

9 Drawings 2-2E and 2-2F are the assembly diagrams of DS-C33 series 22.5K, 30K. Fig. 2-2E

10 Fig. 2-2F

11 Drawings 2-2G and 2-2H are assembly diagrams of DS-C33 series 10K&15K Fig. 2-2G

12 Fig. 2-2H

13 2-3 Introduction on function of main module Rectifier / battery charger (1) Rectifier / battery charger module is using SCR components for transforming AC to DC voltage and to recharge the batteries. (2) In Rectifier / battery charger module, double control method to CPLD and DSP are combined to keep rectifier and battery charger more steady and reliable. (3) Has complete system for protection from over voltage. (4) Detection on phase sequence error or single phasing. (5) Equipped with function to soft start the DC voltage during power up or return of utility power. (6) Designed with 3 phases and 6 pulses. Optional six phase 12 phase pulse is available. (7) It supports float charge and equalization charge for maintenance free battery. Floating charge voltage is DC 420V, equalization charge voltage is DC 430V, floating charge voltage is 410V. (8) It can conduct self test even in on line mode. (9) Charging current is controlled by LCD panel setting. Fig (actual model assembly diagram)

14 2-3-2 Introduction to inverter module (1) Uses IGBT as power component. (2) Uses high technology DSP to control the inverter module. (3) Utilize digital control management to prevent discrete component from aging, temperature slant and reduce the quantity of parts to enhance system reliability. (4) Integrated A/D signal processing, 12bit resolution and high speed transferring capability. (5) Reserve communication port for parallel UPS operation, detection of secondary power, ATS control signal, SPWM testing port. (6) Highly integrated system, compact and highly reliable. (7) It is works in coordination with the rectifier, AS-400 interface board, IGBT driver, static switch, LCD panel, PT board, CT board to convert the utility voltage into clean power. Fig (Inverter module) Static switch (1) Uses SCR components as switching circuit between INV and BYPASS. These are controlled using high frequency electrical technique. (2) Use high frequency technique to isolate the trigger circuit to prevent false triggering of the SCR. (3) DSP control keeps it energized and provides switching signal to connect either bypass or inverter output to the load. (4) Assembly model diagram is shown in fig (5) Notice: static switch module and inverter module are mounted in the same heat sink.

15 2-3-4 Input start up/protect trigger (1) Start up function. This function is used for delaying the input power during start up or utility recovery to protect the unit from electrical surge impact. The function is controlled by the main control board. (2) Protection function. This function is used whenever input voltage is too high or too low or wrong phase sequence or if one phase is missing. In this case, the input trigger will be cut to protect the unit. This function is controlled and detected by main control board EPO switch (Emergency Power Off) (1) EPO (Emergency Power Off) is a device for shutting down the UPS in case of emergency. By pressing the EPO button, the UPS can be shut down immediately. When the UPS has been shut down, all system will be locked and all status are stop. If you want to restart the system, press OFF button on the front panel and then press Enter, then press ON button and Enter to restart the inverter. PCB 3304 : PCB 3304A : Fig EPO Fig

16 2-4 System operation mode System is normal (Fig ) S6 Manual bypass switch S3 AC choke DC choke S5 Utility Input switch Input protection Rectifier S1 Battery auxiliary switch - + Battery Pack Inverter S4 Battery switch Transformer S.T.S. Output switch Load Fig Utility AC input supplies the rectifier /battery charger where the AC is converted into DC. Battery is recharged while the DC is fed to the inverter module. The static switch module connects the inverter output to the load while the bypass electricity is blocked. At this time power is supplied by inverter System bypass (fig.2-4-2) S6 Manual bypass switch S3 AC choke DC choke S5 Utility Input switch Input protection Rectifier S1 Battery auxility switch - + Battery Pack Inverter S4 Battery switch Transformer S.T.S. Output switch Load Fig Utility input AC power supplies the load through the static switch. At this time power is supplied by the utility.

17 2-4-3 System is powered by battery (fig.2-4-3) S6 Manual bypass switch S3 AC choke DC choke S5 Utility Input switch Input protection Rectifier S1 Battery auxility switch - + Battery Pack Inverter S4 Battery switch Transformer S.T.S. Output switch Load Fig In the absence of the utility input, the rectifier stops and DC power is supplied by the batteries to the inverter module. The inverter converts the DC into AC. The static switch connects the inverter output to the load. At this time, the inverter supplies the load. When power is supplied by the batteries, the back up time depends on number of batteries and load level System Diagram for manual maintenance bypass mode (shown as fig ) S6 Manual bypass switch S3 AC choke DC choke S5 Utility Input switch Input protection Rectifier S1 Battery auxility switch - + Battery Pack Inverter S4 Battery switch Transformer S.T.S. Output switch Load Fig Utility AC input flows through the manual maintenance switch directly to the output load. At this time power is supplied by utility. In this mode, a technician can repair or maintain and clean the UPS.

18 2-4-5 EPO switch (fig ) S6 Manual bypass switch S3 AC choke DC choke S5 Utility Input switch Input protection Rectifier S1 Battery auxility switch - + Battery Pack Inverter S4 Battery switch Transformer S.T.S. Output switch Load Fig Be sure the to check if the EPO is switch otherwise it will not be possible to start up the UPS and no voltage will be supplied to the output load.

19 3 Panel function 3-1 Status indication on LED panel (Fig. 3-1 and Fig 3-2) Key Key ON Key Key Key ESC Key ENTER Key Fig. 3-1 Fig. 3-2

20 Status indication on LCD/LED panel is divided into 4 modes: (1) System Normal mode: In this mode, only INPUT, RECTIFIER, CHARGE, INVERTER, OUTPUT LEDs are illuminated and others LEDs are off. (2) System Bypass mode: INPUT, BYPASS and OUTPUT LEDs are illuminated and others are off. (3) Back-up mode: DISCHARGE, INVERTER and OUTPUT LEDs are illuminated and others are off. (4) Manual Bypass mode: When Switch S6 is switched to ON position, Only MANUAL BYPASS LED is on, others are off. It means that the system has transferred to Manual Bypass mode correctly. After S1, S2, S3 and S4 are switched OFF, use a discharging tool to release the remaining voltage on the DC capacitor. When the MANUAL BYPASS LED is extinguished, proceed to execute maintenance operation. 3-2 Function key Introduction to function key on the panel ON button for turning on inverter OFF button for turning off inverter button for shifting cursor left button for shifting cursor right button for shifting cursor up or turn to other page button for shifting cursor down or turn to other page ESC button Exit from present page ENTER button for confirming setting

21 3-3 LCD Panel description (A-1) MAIN MENU A Date display B Event stories C System set D Time display E Time set Date display I/P V / I/P Freq. I/P I / I/P Cap. / Total Cap. O/P V / O/P Freq. O/P I / O/P Cap. / Total Cap. O/P Power / Load Cap. Bat V, C/C, C/M, Mech. Temp. (C-1) SYSTEM SET (1)Basic set (2)User set (E-1) TIME DISPLAY 2003 / 10 / 21 00: 00 :00 (F-1) Date/Time Set Date 200*/**/ ** Time **: **:**

22 (A-1) Date display I/P V / I/P Freq. I/P I / I/P Cap. / Total Cap. O/P V / O/P Freq. O/P I / O/P Cap. / Total Cap. O/P Power / Load Cap. Bat V, C/C, C/M, Mech. Temp. (A-2-6) Bat V:DC 000.0V Bat C/C :000.0A Bat C/M:FL Mech. Temp.:00.0Deg I/P V RS 000.0V RN 000.0V ST 000.0V SN 000.0V TR 000.0V TN 000.0V I/P Freq. : 00.0 HZ I/P I (A-2-1) (A-2-2) I/P Cap. RN 000.0A KVA SN 000.0A KVA TN 000.0A KVA Total Cap. : KVA (A-2-3) O/P V RS 380.0V RN 220.0V ST 380.0V SN 220.0V TR 380.0V TN 220.0V O/P Freq. : 60.0Hz O/P I (A-2-4) O/P Cap. RN 000.0A KVA SN 000.0A KVA TN 000.0A KVA Total Cap. : KVA (A-2-5) O/P POWER R KW S KW T KW Total Power KW Load Cap. : %

23 (C-1) SYSTEM SET Basic set User set Please Enter Security Code **** NO YES (C-3) USER SET 1 Alter security NO. 2 Battery test 3 Communication set 4 F. V. C/C set 5 Other set Security code Error

24 (C-3) USER SET 1 Alter security NO. 2 Battery test 3 Communication set 4 F. V. C/C set 5 Other set (C-4-1) ALTER SECURITY NO. Key in old code **** Key in new code **** (C-4-2) BATTERY TEST 30 Seconds 1 Month 3 Month Test OFF (C -4-4) F. V. C/C SET 1 Frequency set 2 System input V 3 System output V 4 Output voltage 5 Charge current 6 Charger mode (C-4-5) OTHER SET 1 Buzzer 2 Backup time 3 Language 4 Model type

25 (C-4-2) BATTERY TEST 30 Seconds 1 Month 3 Month Test OFF Waiting SUCCEED SUCCEED SUCCEED SUCCEED

26 (C-4-4) F. V. C/C SET 1 Frequency set 2 System input V 3 System output V 4 Output voltage 5 Charge current 6 Charger mode FREQUENCY SET 口 50HZ 口 60HZ SYSTEM INPUT V SET 口 110V 口 220V Succeed Succeed SYSTEM OUTPUT V SET 口 110V 口 220V Succeed O/P VOLTAGE SET 口 110V/220V 口 115V/230V 口 120V/240V Succeed CHARGE CURRENT SET 口 1A 口 10A 口 2A 口 15A 口 3A 口 20A 口 5A 口 30A Succeed CHARGER MODE 6 充電機模式設定 SET 口 FL 口 EQ Succeed

27 (C-4-5) OTHER SET 1 Buzzer 2 Backup time 3 Language 4 Model type BUZZER SET 口 Silence 口 Alarm Succeed LANGUAGE SET 口 English 口 Chinese Succeed MODEL SET 口 10K 口 60K 口 15K 口 80K 口 22.5K 口 100K 口 30K 口 120K 口 45k 口 150K Succeed

28 (F-1) TIME SET DATE 200*/**/ ** TIME **: **:** Date/Time Set Y / M / D 200*/**/** H M S : : Succeed

29 4 Placement and installation 4-1 Placement Transporting The UPS system is composed of the main equipment and battery pack. Therefore be careful when transporting it and handle it following the points listed below. (1) Follow the arrow symbol in the carton for the correct position of the UPS. Don t turn it upside down or in a slanting position. (2) It is necessary to fasten the system firmly during transportation. (3) When transporting, don t remove the packaging to reduce impact to the system. (4) When transporting, make sure that the unit does not get wet. (5) Do not drop and avoid strong impacts to this UPS to protect the components from damage Unpacking Please follow the steps below to unpack the UPS. (1) Cut the wrapping and remove the packing board. (2) Remove PE cubicle for protecting the equipment. (3) Unscrew UPS from the pallet base. (4) Put a ramp board at the back of the UPS, and let it slide down smoothly Position and Environment: Precaution for storage (1) Ambient temperature of installation site range form +28 to -10. Battery life will be reduced if the ambient temperature exceeds this range. Ideal ambient temperature for operating the equipment is between +25 and 5. (2) Sufficient space must be provided around the equipment to enable maintenance operations. A space of 1M must be available in front of the equipment and minimum 50cm of space around the UPS for ventilation. (3) Table shows the BTU consumption for DS-33 series. Model BTU Model BTU DS10KC DS60KC DS15KC DS80KC DS22.5KC DS100KC DS30KC DS120KC DS45KC Table (4) It is essential to have sufficient illumination and fire control device in the room where the UPS

30 will be installed. 4-2 Installation Input / Output Specifications System output 50Hz/60Hz 3 wire 3 phase wire 200Vac, 220Vac 50Hz/60Hz 3 phase 4 wire and grounding wire 110/190Vac,115/200Vac,120/208Vac,127/220Vac 220/380Vac,230/400Vac,240/415Vac System output 50Hz/60Hz 3 phase 4 wire and grounding wire 110/190Vac, 115/200Vac, 120/208Vac, 127/220Vac, 220/380Vac, 230/400Vac, 240/415Vac. The table below shows the UPS input/output current and switch specifications. Rating Voltage Input max. current Input circuit breaker Out max current Output circuit Neutral wire max. current breaker 110/190V 55A 3P/60A 38A 3P/50A 65A 10KVA 120/208V 49A 3P/50A 35A 3P/40A 60A 220/380V 28A 3P/30A 19A 3P/20A 32A 110/190V 82A 3P/100A 57A 3P/75A 98A 15KVA 120/208V 74A 3P/75A 52A 3P/60A 90A 220/380V 39A 3P/40A 28A 3P/30A 48A 110/190V 122A 3P/125A 85A 3P/100A 147A 22.5KVA 120/208V 114A 3P/125A 78A 3P/80A 135A 220/380V 62A 3P/80A 43A 3P/60A 74A 110/190V 163A 3P/175A 113A 3P/125A 195A 30KVA 120/208V 149A 3P/150A 104A 3P/125A 180A 220/380V 83A 3P/100A 57A 3P/75A 98A 110/190V 239A 3P/300A 170A 3P/200A 294A 45KVA 120/208V 223A 3P/225A 156A 3P/150A 270A 220/380V 121A 3P/125A 85A 3P/100A 147A 110/190V 312A 3P/350A 226A 3P/225A 391A 60KVA 120/208V 290A 3P/300A 208A 3P/225A 360A 220/380V 158A 3P/175A 114A 3P/125A 197A 80KVA 220/380V 211A 3P/225A 149A 3P/150A 263A 100KVA 220/380V 242A 3P/300A 189A 3P/200A 327A 120KVA 220/380V 291A 3P/300A 227A 3P/225A 393A 150KVA 220/380V 364A 3P/400A 284A 3P/300A 491A 200KVA 220/380V 485A 3P/500A 378A 3P/400A 654A 250KVA 220/380V 598A 3P/600A 473A 3P/500A 819A

31 Table When installing the UPS, please refer to table of for corresponding input/output circuit breaker. Refer to table for wire specifications and capacity Acceptable highest temperature of insulating Insulating Wire materials 1 PVC wire 60 2 RB wire 3 Heatproof PVC wire 75 4 PE Wire 5 SBR Wire 80 6 Artificial rubber wire 7 EP rubber wire 90 8 Cross connect PE wire Ampere capacity for every kind wire(ambient temperature 35 ) Copper wire conducting wire SWG AWG number 60 insulation 75 insulation 80 insulation 90 insulation diameter Ampere capacity (A) / / / / / / / / / Wiring / / / / / / / / / /

32 Table 4-2-2A For wire diameters for different capacity of UPS system, please check the table 4-2-2B below Wire diameter of ground wire 10KVA 8mm 2 15KVA 8mm KVA 8mm 2 30KVA 14mm 2 45KVA 22mm 2 60KVA 22mm 2 80KVA 38mm 2 100KVA 38mm 2 120KVA 38mm 2 Table 4-2-2B

33 4-2-3 Input/Output connection and precaution From table and table 4-2-2, we could determine the installation wire diameter and breaker capacity, as shown below. Rating Mains voltage Input circuit breaker Input wire diameter (mm 2 ) Output circuit breaker Output wire diameter (mm 2 ) 110/190V 3P/60A 14 3P/50A 14 10KVA 120/208V 3P/50A 14 3P/40A /380V 3P/30A 5.5 3P/20A /190V 3P/100A 22 3P/75A 14 15KVA 120/208V 3P/75A 22 3P/60A /380V 3P/40A 8 3P/30A 8 110/190V 3P/125A 38 3P/100A KVA 120/208V 3P/125A 38 3P/80A /380V 3P/80A 22 3P/60A /190V 3P/175A 50 3P/125A 38 30KVA 120/208V 3P/150A 50 3P/125A /380V 3P/100A 22 3P/75A /190V 3P/300A 100 3P/200A 60 45KVA 120/208V 3P/225A 60 3P/150A /380V 3P/125A 38 3P/100A /190V 3P/350A 125 3P/225A 60 60KVA 120/208V 3P/300A 100 3P/225A /380V 3P/175A 60 3P/125A 38 80KVA 220/380V 3P/225A 60 3P/150A KVA 220/380V 3P/300A 150 3P/200A KVA 220/380V 3P/300A 150 3P/250A KVA 220/380V 3P/400A 200 3P/300A KVA 220/380V 3P/500A 225 3P/400A KVA 220/380V 3P/600A 250 3P/500A 225 Tab

34 After wiring, please check the following points listed below. (1) Screws in each point are tight. (2) Ground wire is connected well. (3) No short-circuit in the output switch board and load circuits. (4) Battery fuse switch S4 in switched off. (5) Batteries are connected correctly. (6) All switches of the UPS from S1 to S6 are off Precaution for grounding system The grounding mode is divided into 4 categories: (1) Equipment grounding: used in low voltage equipment, grounding by non-charged metal. (2) Internal wire system grounding: internal wire inside UPS cubicle which connects to equipment grounding. (3) Low voltage power system grounding: grounding the secondary winding neutral wire of the transformer. (4) Equipment and system grounding: use the same grounding wire to connect the internal wire grounding and equipment grounding to the same point Precautions for connecting batteries (1) For safety, technician should put on insulating glove when handling or installing the UPS. (2) Before removing the UPS, be sure to check if the grounding wire is connected tightly and keep hands and legs dry. Then cut off battery circuit from the equipment. (3) When removing battery, remove first terminal B+ and B- in the UPS, then remove the wire connecting the different battery layers. (4) When removing connections between batteries, pay attention no to touch the neighboring battery terminal to avoid short cut. (5) When mounting batteries, assemble separately the battery set in each layer, and then connect the different layers and finally connect B+ and B- terminal to the battery breaker. (6) After installation of the batteries, check if the voltages polarity on the battery circuit breaker is correct.

35 Table for battery cable diameter corresponding to capacity of UPS UPS capacity Battery cable diameter (mm 2 ) 10KVA 5.5mm 2 15KVA 8mm KVA 14mm 2 30KVA 14mm 2 45KVA 30mm 2 60KVA 50mm 2 80KVA 60mm 2 100KVA 80mm 2 120KVA 125mm 2 150KVA 150mm 2 200KVA 200mm 2 250KVA 250mm 2 Table 4-2-5

36 5 Operation procedure 5-1 Start up procedure Initial start up procedure (1) Introduction to switches inside the equipment and its function S1 Switch: auxiliary switch S2 Switch: secondary input power switch or BYPASSS switch for the model with input transformer. S3 Switch: main input power switch S4 Fuse Switch: power switch of the equipment S5 Switch: equipment switch S6 Switch: manual bypass switch used when maintaining the equipment (2) Input phase sequence testing: Turn on the switchboard to deliver power to the input terminal. Measure the voltages on each point to see if it is within the specifications of this equipment. Then use a 3-phase sequence meter to check the input sequence. If phase sequence is correct, proceed to next step. On the contrary, if phase sequence is reversed, turn off external power switch and exchange input terminal wires S and T and then turn on external power switch to deliver power once more and check the phase sequence. If phase sequence is correct, go to next step. (3) Initial setting procedure: Press ESC button on the LCD and return to main menu. Press or button to option F. Press ENTER button to enter to Date/ Time setting. You will see the following display page. DATE / Time set Y / M / D 20 / / H : M : S : : Shift cursor to year and press to shift the digits from 0 to 9. Press button to shift the digits from 9 to 0. Press button to shift right. Press on button to shift left. Follow the steps above to set the date and time. After completing the setting, press ENTER button to save the setting and return to main menu. Press button to move cursor to E. Display time and then press ENTER button. (4) Saving system time and date: After executing step 3, please pull out the plastic insulation pad of lithium cell on OL-3304 LCD PCB board as shown in the picture below. The procedure above is for saving setting to the system clock to be used for battery testing and time record in case of UPS fault.

37 (5) 1.Initial start up procedure: Make sure all the loads connected to the UPS are switched off. Turn on Switch S1, S2 and turn off S3 in sequence. Then turn off S4 fuse switch in the UPS. Press the ON button on the LCD panel and a screen for confirming setting appears. Press ENTER button. A message Setting complete on the screen appears in a few seconds to indicate setting is successful. At that time the system will detect the battery for 30 seconds and then the UPS will transfer from Bypass mode to Inverter mode. Measure the output voltage and frequency on terminal R, S, T to see if the reading is correct. Measure the voltage on terminal B+ and B- to see if the voltage is 410VDC. Please follow operating steps as shown in (fig ).

38 Fig

39 5-1-2 General start up procedure After the system is initialized successfully and shut down, please follow the steps below to start up the equipment again. Press the ON button on the LCD panel and a screen for confirming setting appears. Press on ENTER button. Then a message Setting complete appears in a few seconds to indicate the setting is okay. BYPASS LED on the front panel will be lit off and INVERTER indicator will be light up in 50 seconds, which indicates UPS is powered by the INVERTER. 5-2 Shut down procedure General shut down procedure General shut down procedure is used for shutting down the equipment when the system functions well. The procedure is as follows. Press the OFF button on the LCD panel and a screen for confirming setting appears. Please press ENTER button. Then a message Setting complete appears in a few seconds to indicate the settingis okay. INVERTER LED on the front panel will be off and BYPASS LED indicator will be lit, which indicates UPS is powered by the BYPASS System shut down procedure Press OFF button on the LCD panel and a screen for conforming setting will appear. Press ENTER to confirm the setting. The INVERTER LED indicator will turn off and the Bypass LED indicator will be lit. Turn off switch S5, S4, S3, S2 (for some model only), S1 (for some model only) one by one. 5-3 Maintenance procedure Maintenance procedure Press OFF button on the LCD panel and a screen will appear for conforming setting. Press ENTER to confirm the setting. The INVERTER LED indicator will turn off and the Bypass LED indicator will be lit. Unscrew the protection plate to switch on Switch S6, then switch off Switch 5, switch on Switch S4, switch off Switch S3 and, S2 as shown in figure.5-3:

40 Fig. 5-3

41 5-3-2 Procedure for replacing battery (1) Turning off the INVERTER Push OFF button on the front panel and then push ENTER button to shut down UPS. At that time the UPS enters into maintenance bypass mode. (2) Switching into maintenance bypass mode Turn switch S6 to ON position and put in place its protective cover, and then turn off switch of S5, S4, S3, S2 in sequence (only for some model), switch S1 ( OFF position). (3) Replacing the battery Wait for one minute and then remove iron sheet in front of the switch and battery apron. Remove battery connection wiring and replace with a new battery. Connect the wiring again. (Be sure to verify out put voltage and polarity after connecting wiring of batteries) (4) Restarting UPS After fixing battery apron and switch iron sheet in place, turn on switch S1, S2 (for some models only), S3, S4 and S5. Turn the switch S6 to OFF position and put in place its protective cover. Remove the other switch metal cover and follow UPS start up procedure to start up UPS.

42 5-4 System recovery from maintenance procedure Turn ON switch S1 (for some UPS models only), S2 (for some UPS models only), S3 and S5, Turn off S6 in sequence. Turn on S4 and then press ON button on the panel for a few seconds. A screen for conforming setting appears. Press ENTER button. The a message Setting is successful will appear in a few seconds. The LCD panel will be illuminated after 50 seconds. Measure the voltage on terminal B+ and B- to see if the value is exact 410VDC. Measure the output voltage and frequency of terminal R, S, T to see if they are all correct. If the reading is correct, it means the system is initialized successfully. Finally, install the protection plate on Switch S6. Please follow operating steps as shown in fig.5-3

43 5-5 Introduction to LCD front panel and illustration of each function Introduction to function keys on the front panel button: Moves the page cursor to the right button: Moves the page cursor to the left OFF button: OFF function key ON button: ON function key button: Moves up the page cursor button: Moves down the page cursor ENTER button: Execute/confirm setting ESC button: Return to previous page Use,,, function key to select item on LCD menu and then press ENTER to enter the category you need. Use and key to move and enter into a setting field of 4 digits and use and key to select the number. Then Press ENTER key to confirm and execute the setting. If you want to turn to another function, press ESC key to return to the previous page or press ESC key twice to return to the main menu and use,,, key to select other functions. 5-6 Emergency shut down procedure Introduction to EPO operation EPO (Emergency Power Off) is a device for shutting down the UPS in case of emergency. If the EPO is turned on, the following action will be performed: (1) Stop Inverter immediately. (2) Stop static switch immediately and the system won t have output power. (3) Stop rectifier charger system. Except the above actions, the LCD panel will still remains active and keeps record on EPO time for starting up and recovery. Meanwhile the UPS keeps communication with other device as it were. For recovering from EPO, push the EPO switch while pressing the OFF button on the LCD panel and a screen for confirming setting appears. Press ENTER button. The DSP system will respond in a few seconds and Setting complete appears to indicate setting successfully. At the moment check the voltage reading on the screen if the voltage of battery reaches to 410VDC. If it reads 410VDC, switch off S4 breaker at once. The system will detect the battery for 30 seconds and after the procedure, DC will recover and the UPS will transfer form Bypass mode to Inverter mode. At this point, the UPS is powered by the INVERTER.

44 6 Maintenance (1) Keep the operating environment clean and clean the inside of the UPS at least once a year. (2) Discharge and charge the battery at least once every three months to improve the life of the battery. (3) Please note the temperature and humidity of the operating environment. (4) When storing the UPS, use PE plastic bag to pack it. (5) Check the lithium cell on the PCB3304 every year and change it if the cell voltage goes under 2 VDC.

45 7 Specifications for DS-C33 Series UPS AC input Output Static Switch Charger Utility Environ ment Model DS 10KC33 DS 15KC33 DS 22.5KC33 DS 30KC33 DS 45KC33 DS 60KC33 DS 80KC33 DS 100KC33 DS 120KC33 Capacity 10KVA 15KVA 22.5KVA 30KVA 45KVA 60KVA 80KVA 100KVA 120KVA Rating Power 8KW 12KW 18KW 24KW 36KW 48KW 64KW 80KW 96KW Power factor 0.8 Phase 3 Phase 3 wire / 3 Phase 4 wire and ground Voltage 380V/220V or 208V/120V ±20 % Frequency Regulation style Auto-sensing, 50Hz/60Hz ±5 Hz 3 phase 6 pulses or 12 pulses (option) DC voltage DC410V Efficiency of rectifier >97% Efficiency of Inverter >90% Total Efficiency >88% Phase 3 phase 4 wire and ground Voltage range 380V/220V or 208V/120V Voltage regulation ±1% Transient state Overload capacity Way of Inverter Frequency Return to 90% with 4 cycle Bypass after 30 min while overload >100% <125% Bypass after 30 sec while overload =125% <150% Bypass after 30 cycles while overload exceed 150% Sine wave modulated from 20KHz pulse by DSP control 50Hz/60Hz Frequency regulation ±0.1% Range of phase lock Range of lock released Range of lock back Wave ±5 Hz >±5 Hz ±3 Hz Sine wave Load crest factor 3:1 Total harmonic distortion Transfer way Transfer way Less 3% linear load When inverter and utility are synchronized at same phase and voltage, bypass Bypass to inverter 0Ms Normal state, inverter to bypass 0mS Efficiency > 99% Voltage Current Charging period Battery type Backup time Noise DC410V Current can be adjusted at 1A, 2A, 3A, 5A, 10A, 15A, 20A, 30A automatically Return to 90% from 100% exhausted battery within 8 hours (depending on type of batteries) Bank with 12V X 30 pcs Depending on type of batteries Less than 60dBA from the surface of 1m away Operating Temperature 0~40 Storage Temperature -25 ~55 Ambient operation 3,500 meters max. elevation, 0-95% humidity non-condensing

46 Physical size Model DS DS DS DS DS DS DS DS DS 10KC33 15KC KC33 30KC33 45KC33 60KC33 80KC33 100KC33 120KC33 W 530mm 530mm 530mm 530mm 750mm 750mm 750mm 1100mm 1100mm D 875mm 875mm 960mm 960mm 800mm 800mm 800mm 800mm 800mm H 1010mm 1010mm 1180mm 1180mm 1700mm 1700mm 1700mm 1800mm 1800mm 120V/208V 427Kg 463Kg 457Kg 543Kg 743Kg 851Kg W 530mm 530mm 530mm 530mm 750mm 750mm 750mm 1100mm 1100mm D 875mm 875mm 960mm 960mm 800mm 800mm 800mm 800mm 800mm H 1010mm 1010mm 1180mm 1180mm 1700mm 1700mm 1700mm 1800mm 1800mm 220V/380V 333Kg 343Kg 345Kg 412Kg 544Kg 631Kg 752Kg 1410Kg

47 8 DS-C33 Series troubleshooting 8-1 Simple troubleshooting chart Error message displayed Error description Troubleshooting Input over-voltage (1)Utility voltage is too high Recover utility to +/-20% or below (2)Ol-3320 detects circuit error Replace ol-3320 (3)Ol-3300 feedbacks circuit error Replace ol-3300 (4)Ol-3300 program parameter is too high Correct program parameter Input under-voltage (1)Utility voltage is too low Recover utility to +/-20% or below (2)Ol-3320 detects circuit error Replace ol-3320 (3)Ol-3300 feedbacks circuit error Replace ol-3300 (4)Ol-3300program parameter is too low Correct program parameter Input over-current (1)Load is over for 125% above Unload to 100% below (2)Ol-3316 feedbacks circuit error Replace ol-3320 (3)Ol-3300program parameter is too high Correct program parameter (4)SCR component damaged Replace SCR component (5)Ol-3302 trigger signal to SCR is abnormal Replace ol-3302 (6)Ol-3302controlerror Replace ol-3302 Input frequency is too high (1)Utility frequency is too high Recover frequency to +/-3Hz (2)Ol-3320 detects circuit error Replace ol-3320 (3)Error on ol-3300 zero point detects circuit Replace ol-3300 (4)Error on ol-3300program diagnose Replace program Input frequency is to low (1)Utility frequency is too low Recover frequency to +/-3Hz (2)Ol-3320 detects circuit error Replace ol-3320 (3)Error on ol-3300 zero point detects circuit Replace ol-3300 (4)Error on ol-3300 program diagnose Replace program

48 Voltage of DC chain voltage is too high Voltage of DC chain voltage is too low Recharge current is too high Temperature of recharge machine is too high Input phase sequence error (1)Ol-3302DCvoltage feedbacks point open circuit (2)Ol-3302 feedbacks circuit error (3)Ol-3300program parameter is too high (4)SCR component short circuit (5)Error on ol-3302 control (1)Ol-3302DCvoltage feedbacks point open circuit (2)Ol-3302 feedbacks circuit error (3)Parameter of ol-3300 program is too low (4)Battery power is insufficient and utility voltage is too low (5)IGBT component short circuit (6)Ol-3302 control error (1)Ol-3302 recharge current exceeds limit current point (2)Ol-3302 feedbacks circuit error (3)Ol-3300 program parameter is too high (4)Error on ol-3302 control (5)Battery is not function well (1)Temperature of side heat sink sheet on recharge machine is too high (2)Temperature switch line is open (3)Error on ol-3302 receiving signal (4)Error on ol-3300 receiving signal (1)Phase sequence of input power is reverse (2)Ol-3320 feedbacks circuit error (3)Error on ol-3302 CPLD signal (4)Error on ol-3300 receive signal Recover feedbacks circuit Replace ol-3302 Correct program parameter Replace SCR component Replace ol-3302 Recover feedbacks circuit Relaceol-3302 Correct program parameter Recover utility to +/-20% or below Replace IGBT component Replace ol-3302 Replace ol-3302 Replace ol-3302 Replace ol-3300 Replace ol-3302 replace battery Unload to under 100% load Recover temperature switch line Replace ol-3302 Replace ol-3300 Recover input power to positive phase sequence Replace ol-3302 Replace ol-3302 Replace ol-3302

49 8-2 Simple troubleshooting for Inverter Error message displayed Error description Troubleshooting Output over-voltage (1)Ol-3320 detects circuit error Replace Ol-3320 (2)Ol-3300 feedbacks circuit error Replace Ol-3300 (3)Ol-3300 program parameter is too high Correct Program Parameter (4)Ol-3300controlerror Replace Ol-3300 Output under-voltage (1)Ol-3320 detects circuit error Replace Ol-3320 (2)Ol-3300 feedbacks circuit error Replace Ol-3300 (3)Ol-3300program parameter is too low Correct Program Parameter (4)Ol-3300controlerror Replace Ol-3300 Output over-current (1)Load exceeds 100% above Unload Load To Under 100% (2)Ol-3316 detects circuit error Replace Ol-3316 (3)Ol-3300 program parameter is too high Correct Program Parameter Inverter input over-current There isn t a function like this for now Temperature on the Inverter is too high (1)Temperature of heat sink sheet on inverter side is too high Unload Load To Below 100% (2)Temperature switch line is open Recover Temperature Switch Line (3)Error on receiving ol-3312 signal Replace Ol-3312 (4)Error on receiving ol-3300 signal Replace Ol-3300 VCE Fault (1)IGBT component short circuit Replace IGBT Component (2)Output is short circuit Eliminate Short Circuit (3)Error on IGBT signal line connection method Recover IGBT Signal Line Connection Method (4)Ol-3312 control error Replace Ol-3312 (5)Ol-3300 control error Replace Ol-3300

50 8-3 Simple troubleshooting for system function Error message displayed Description Troubleshooting (1)No battery found Add battery Battery can t supply power Input voltage is lower than 25% Temperature of main machine is overheat Humidity of main machine is too high No second power found No any Power Input voltage is too low and battery discharges (2)Battery power is insufficient Recharge battery (3)Ol-3302 detects circuit error Replace ol-3302 (4)Ol-3300 program parameter inaccuracy Correct program parameter (1)Utility voltage is too low Recover utility to within+/-20% (2)Ol-3320 detects circuit error Replace ol-3320 (3)Ol-3300 feedbacks circuit error Replace ol-3300 (4)Ol-3300 program parameter inaccuracy Correct program parameter (1)Error on system Inform service technician (2)Error on ol-3300 feedback circuit Replace ol-3300 (3)Ol-3300 program parameter is too high Correct program parameter There is no this function for now (1)No second power Add second Power (2)Ol-3320 detects circuit error Replace ol-3320 (3)Ol-3300 feedbacks circuit error Replace ol-3300 (4)Ol-3300program parameter inaccuracy Correct program parameter (1)No any power is added Add any Power (2)Error on ol-3320 detecting circuit error Replace ol-3320 (3)Error on ol-3302 detecting circuit Replace ol-3302 (4)Error on ol-3300 feedback Replace ol-3300 (5)Error on ol-3300program parameter Correct program parameter (1)Input power is too low or no utility Recover utility to within+/-20% (2)Ol-3320 detects circuit error Replace ol-3320 (3)Ol-3302 detects circuit error Replace ol-3302 (4)Ol-3300 feedbacks circuit error Replace ol-3300 (5)Error on ol-3300program parameter Correct program parameter

51 Battery is in low voltage and UPS is about to be shut down Error on battery test Emergency power functions (1)Input power to low or no utility (2)Battery voltage decreases to low voltage point (3)Ol-3320 detects circuit error (4)Ol-3302 detects circuit error (5)Ol-3300 feedbacks circuit error (6)Error on ol-3300 program parameter (1)No battery (2)Battery power is not insufficient (3)Ol-3302 detects circuit error (4)Ol-3300 program parameter inaccuracy (1)Emergency switch functions (2)Input short circuit (3)Ol-3304 detects circuit error (4)Ol-3300 detects circuit error Recover utility to within+/-20% Unload to 10%~20% of load Replace ol-3320 Replace ol-3302 Replace ol-3300 Correct program parameter Add battery Recharge battery Replace ol-3302 Correct program parameter Recover Emergency Switch Eliminate short circuit Replace ol-3304 Replace ol-3300