OPTI-UPS User’s Guide Durable Series Models DS-D33 www.opti-ups.
Contents 1. SYSTEM OVERVIEW Page .............................................................................. 1-1 1.1. Construction of the UPS ...................................................................... 1-1 1.2. Features and Advantages...................................................................... 1-5 1.3. Rectifier ............................................................................................... 1-8 1.4. Inverter ..........................................................
Contents Page 5.5. Menu 4 – Historical Event Menu ......................................................... 5-5 5.6. Menu 5 – Parameter Setting Menu....................................................... 5-6 5.7. Menu 6 – Rectifier Data Menu ............................................................ 5-7 5.8. Menu 7 – Output Data Menu ............................................................... 5-8 5.9. Menu 8 – Other Data Menu ................................................................. 5-8 5.
CAUTION ! ☆ Hazardous voltage exits inside the UPS (includes the connection terminals), cable connection and maintenance should be done by professional or qualified personnel. ☆ The UPS has its own internal battery source (battery). The output terminals may be live even when the UPS is not connected to the AC supply. ☆ DC capacitors are employed in this unit, hazardous voltage still exists even when the unit is not energized. Do not touch any part of the UPS inside.
1. SYSTEM OVERVIEW 1.1. Construction of the UPS General Topology： The UPS system is composed of input breakers, input filter & protection network, rectifier, battery bank, inverter, static switch, bypass breaker, isolation transformer and output filter. The basic topology is shown in the diagram above.
Besides, the knowledge of choosing the best and most suitable UPS can be easy or can be difficult, it depends on whether you know the key points or not. The most obvious specification is the power, it depends on how large is your load. Usually, an allowance of 50% more power must be added to the current power you needed, both for tolerance and future expansion. Of course you can add more than 50% if you expect a larger increase of load in the future.
Back-up Mode: Since the battery is connected directly to the DC bus, when the AC failure, the battery change immediately from receiver to donor, supply energy to the inverter instead of receiving energy from the rectifier. The output AC is not interrupted. Therefore, the load connected to the output is protected.
Maintenance Bypass Mode: In case of UPS maintenance or battery replacement, and the load cannot be interrupted, the user can turn off the inverter, close the bypass breaker and then open the rectifier and reserve breakers. The AC output will not be interrupted during manual bypass transfer procedure. Therefore maintenance bypass switch keeps continuously power supply to the load. Electricity will not exist in UPS except the output transformer, thus ensure the safety of service personnel.
1.2. Features and Advantages (a) Reliable input protection: Circuit breakers is put in each individual input loop to ensure power can continue through the other loop in case of breaker trip caused abnormal condition in either rectifier or load. (b) Input surge protection: MOV (surge protector) is added at the input, provide sufficient protection to both UPS and the load from any lightning or surge caused by neighboring large loads.
(g) P&P Modular design: The power circuit is separated into several modules plugged into slots in the UPS, which is easy to pull out, permit quick maintenance and easier trouble shooting. Therefore, it can be regarded as plug and play modules. (h) Cold start function: the UPS can be started without AC source, that is, can be started with battery only, because current limit circuitry is added.
(n) Intelligent battery test: Battery is tested after every boost charge of battery (either initiated by battery discharge or by one month has elapsed) without stopping the rectifier to prevent the risk of output AC failure in case of battery bad. And can inform the user the battery condition, so that the user can take action before the capacity of the battery is needed.
1.3. Rectifier The main function of a rectifier is to convert the AC input to DC power, supply it to the inverter; the inverter then converts the DC power to AC power to the load. Our UPS use the DC power to charge the battery as well, which is the most efficient way of charging. AC INPUT RECTIFIER BREAKER DC OUTPUT INDUCTOR SCR CAPACITOR 6-PULS E FULL CONTROL RECTIFIER The rectifier of f r o m 20KVA to 80KVA UPS uses 6-pulse full controlled rectifier.
PHASE SHIFT TRANSFORMER AC INPUT RECTIFIER BREAKER SCR DC OUTPUT INDUCTOR CAPACITOR SCR 12-PULSE FULL CONTROL RECTIFIER In order to further improve the power factor and reduce harmonic current drawn by the rectifier, our UPS from 100KVA and above use the 12-pulse full controlled rectifier. The total current harmonic current can be reduced to around 15%, and power factor is improved to over 0.8. A phase shift transformer is added to achieve the performance.
The inverter is composed of IGBT, inductor, capacitor, snubber, control circuitry and protection circuitry. It can convert the DC power from the DC bus to AC power supply to the output load. Our UPS use IGBT technology which can switched to frequency beyond audible range, therefore no audible noise. Our UPS use voltage regulation circuitry to limit the voltage variation within 1%. Also special compensation circuitry is added to eliminate the output distortion.
The static switch is composed of two pairs of back-to-back connected SCR. It can transfer the load from reserve to inverter or from inverter to reserve without dead time at the output. Therefore, it is a very important portion of a UPS. Detection circuitry is added to the control circuit to achieve zero dead time transfer. Extra detection logic is employ to control when should the static switch transfer.
1.7.
20KVA ~ 60KVA INTERIOR DRAWING 1-13
80KVA ~ 160KVA OUTLINE DRAWING 1-14
80KVA ~ 160KVA INTERIOR DRAWING 1-15
0KVA ~ 320KVA OUTLINE DRAWING 1-16
200KVA ~ 320KVA INTERIOR DRAWING 1-17
INTER-PCB DIAGRAM 1-18
1.8.
The front panel is located at the front of the PCB holder. It gathers the real time information of the UPS and shows them clearly to the user. It also provides switches for controlling and setting the UPS. So, through this panel, the UPS can be not only a stand alone machine supplying the load but closely related to the user. Each part of the panel is explained below. A: LCD display: Real time status, data or historical events is displayed on the LCD.
RESERVE AC FAIL – reserve AC magnitude is out of range. RESERVE FREQ FAIL – reserve frequency is out of range. BATTERY LOW – DC bus (or battery) is lower than 320VDC, low battery shutdown is approaching. BATTERY LOW SHUTDOWN – inverter shutdown due to DC bus (or battery) is lower than 295VDC (lower than the acceptable DC voltage of the inverter. RECT AC FAIL – rectifier AC magnitude is out of range. ROTATION ERROR – rectifier AC phase rotation is incorrect.
BAT LOW – the LED will lit as long as the DC voltage is lower than 320VDC. BAT LOW STOP – the LED will lit as long as the DC voltage is lower than 295VDC, inverter on is prohibited. FAULT – the inverter is shutdown due to abnormal conditions such as overload, short circuit, high DC, fuse over temperature, bypass breaker on or emergent stop. Since these LEDs are located behind the transparent window, the user can see them clearly without opening the door.
EMERGENT STOP - beep continuously The buzzer will also beep once every time the inverter is switched on or off to acknowledge the user his key is valid and accepted. E. Bypass LED: This LED will lit when the maintenance bypass breaker is closed. When the maintenance bypass breaker is closed, the inverter cannot be switched on and will stop immediately even when inverter is already running. F.
M. Up key: This is a LCD control key. It is for moving the cursor one item upward when items are being selected or for changing the number/character forward when data or parameter of the UPS is being set. N. Down key: This is a LCD control key. It is for moving the cursor one item downward when items are being selected or for changing the number/ character backward when data or parameter of the UPS is being set. O. Enter key: This is a LCD control key.
2. TECHNICAL SPECIFICATION 2.1. 20KVA ~ 60KVA UPS 3-Phase Input / 3-Phase Output TECHNICAL SPECIFICATION KVA 20 30 40 50 60 RECTIFIER 220V∆ / 380V∆ / 460V∆, 208VY / 380VY / 400VY / 415VY INPUT VOLTAGE INPUT RANGE INPUT FREQUENCY INPUT POWER FACTOR NORMAL INPUT CURRENT(A) MAXIMUM INPUT CURRENT(A) POWER WALK IN EFFICIENCY VOLTAGE REGULATION CURRENT LIMIT(A) RIPPLE VOLTAGE 36 45 54 307 – 520V 50 / 60 Hz +/- 7% 0.8 54 72 90 68 90 113 0% - 100% : 20 sec 99% 1% 81 108 135 0.
KVA 20 INVERTER DC INPUT RANGE WAVE FORM OUTPUT POWER FACTOR VOLTAGE REGULATION 100% UNBALANCE LOAD FREQUENCY LOCK RANGE 50 60 +/ - 1 % 45 – 55 Hz / 55 – 65 Hz OUTPUT FREQUENCY (FREE RUNNING) 50 / 60 Hz + / - 0.1 Hz PHASE SHIFT UNDER 100% UNBALANCE LOAD MAXIMUM OUTPUT PEAK CURRENT(A) 40 285 – 415VDC SINUSOID 208 / 380 / 400 / 415 VY 3 PHASE WITH NEUTRAL 0.8 OUTPUT VOLTAGE THD (LINEAR LOAD) - <110% - 110 – 125% OVERLOAD - 125 – 150% - > 150% EFFICIENCY (100% LOAD) 30 120 % + / - 0.
KVA OVERALL CHARACTERISTICS OVERALL EFFICIENCY OPERATING ENVIRONMENT: - TEMPERATURE - HUMIDITY - ALTITUDE MAXIMUM HEAT DISSIPATION(KW) WEIGHT(Kg) DIMENSION: - HEIGHT(mm) - WIDTH(mm) - DEPTH(mm) - AUDIBLE NOISE STANDARDS: - EN50091-1,-2 - FCC CLASS A PROTECTIONS: - SHORT CIRCUIT - LIGHTNING - EMC FILTER - GALVANIC ISOLATION DATA DISPLAY BY LCD INDICATIONS & ALARMS: - LED,LCD,BUZZER DRY CONTACT BATTERY START 20 30 40 50 60 91% 91% 91.
2.2. 80KVA ~ 160KVA UPS 3-Phase Input / 3-Phase Output TECHNICAL SPECIFICATION KVA 80 100 120 160 RECTIFIER 220V∆ / 380V∆ / 460V∆, 208VY / 380VY / 400VY / 415VY 307 – 520V INPUT VOLTAGE INPUT RANGE INPUT FREQUENCY 50 / 60 Hz +/- 7% INPUT POWER FACTOR 0.8 NORMAL INPUT CURRENT(A) 144 180 216 288 MAXIMUM INPUT CURRENT(A) 180 225 270 360 POWER WALK IN 0% - 100% : 20 sec EFFICIENCY 99% VOLTAGE REGULATION 1% CURRENT LIMIT(A) 216 270 RIPPLE VOLTAGE 324 432 0.
KVA 80 INVERTER DC INPUT RANGE WAVE FORM 100 120 160 285 – 415VDC SINUSOID 208 / 380 / 400 / 415 VY 3 PHASE WITH NEUTRAL 0.8 OUTPUT VOLTAGE OUTPUT POWER FACTOR VOLTAGE REGULATION 100% UNBALANCE LOAD +/ - 1 % FREQUENCY LOCK RANGE 45 – 55 Hz / 55 – 65 Hz OUTPUT FREQUENCY (FREE RUNNING) 50 / 60 Hz + / - 0.1 Hz PHASE SHIFT UNDER 100% UNBALANCE LOAD 120 % + / - 0.5∘ THD (LINEAR LOAD) - <110% - 110 – 125% OVERLOAD - 125 – 150% - > 150% EFFICIENCY (100% LOAD) <2 % CONTINUOUS 15 min 10min 60 sec 94.
KVA OVERALL CHARACTERISTICS OVERALL EFFICIENCY OPERATING ENVIRONMENT: - TEMPERATURE - HUMIDITY - ALTITUDE MAXIMUM HEAT DISSIPATION(KW) WEIGHT(Kg) DIMENSION: - HEIGHT(mm) - WIDTH(mm) - DEPTH(mm) - AUDIBLE NOISE STANDARDS: - EN50091-1,-2 - FCC CLASS A PROTECTIONS: - SHORT CIRCUIT - LIGHTNING - EMC FILTER - GALVANIC ISOLATION DATA DISPLAY BY LCD INDICATIONS & ALARMS: - LED,LCD,BUZZER DRY CONTACT BATTERY START 80 100 120 160 92.5% 92.
2.3. 20KVA ~ 50KVA UPS 3–Phase Input / 1-Phase Output TECHNICAL SPECIFICATION KVA 20 30 40 50 RECTIFIER 220V∆ / 380V∆ / 460V∆, 208VY / 380VY / 400VY / 415VY 307 – 520V INPUT VOLTAGE INPUT RANGE INPUT FREQUENCY 50 / 60 Hz +/- 7% INPUT POWER FACTOR 0.8 NORMAL INPUT CURRENT(A) 36 54 72 90 MAXIMUM INPUT CURRENT(A) 45 68 90 113 POWER WALK IN 0% - 100% : 20 sec EFFICIENCY 99% VOLTAGE REGULATION 1% CURRENT LIMIT(A) 54 81 RIPPLE VOLTAGE 108 135 0.
KVA 20 INVERTER DC INPUT RANGE WAVE FORM OUTPUT VOLTAGE OUTPUT POWER FACTOR VOLTAGE REGULATION 0-100% LOAD 30 40 50 285 – 415VDC SINUSOID 220 / 230 / 240 V, 1p2w or 1p3w 0.8 +/ - 1 % FREQUENCY LOCK RANGE 45 – 55 Hz / 55 – 65 Hz OUTPUT FREQUENCY (FREE RUNNING) 50 / 60 Hz + / - 0.1 Hz PHASE DIFFERENCE WITH RESERVE INPUT + / - 0.
KVA OVERALL CHARACTERISTICS OVERALL EFFICIENCY OPERATING ENVIRONMENT: - TEMPERATURE - HUMIDITY - ALTITUDE MAXIMUM HEAT DISSIPATION(KW) WEIGHT(Kg) DIMENSION: - HEIGHT(mm) - WIDTH(mm) - DEPTH(mm) - AUDIBLE NOISE STANDARDS: - EN50091-1,-2 - FCC CLASS A PROTECTIONS: - SHORT CIRCUIT - LIGHTNING - EMC FILTER - GALVANIC ISOLATION DATA DISPLAY BY LCD INDICATIONS & ALARMS: - LED,LCD,BUZZER DRY CONTACT BATTERY START 20 30 40 50 91% 91% 91.
2.4. 200KVA ~ 320KVA UPS 3-Phase Input / 3-Phase Output TECHNICAL SPECIFICATION KVA 200 240 300 320 RECTIFIER INPUT RANGE 220V∆ / 380V∆ / 460V∆, 208VY / 380VY / 400VY / 415VY 307 – 520V INPUT FREQUENCY 50 / 60 Hz +/- 7% INPUT POWER FACTOR 0.8 INPUT VOLTAGE NORMAL INPUT CURRENT(A) 350 420 525 560 MAXIMUM INPUT CURRENT(A) 437 525 656 700 788 840 POWER WALK IN 15% - 100% : 15 sec EFFICIENCY 99% VOLTAGE REGULATION 1% CURRENT LIMIT(A) RIPPLE VOLTAGE 525 630 0.
KVA 200 240 300 320 INVERTER DC INPUT RANGE 285 – 415VDC WAVE FORM SINUSOID 380 / 400 / 415 V 3 PHASE WITH NEUTRAL 0.8 OUTPUT VOLTAGE OUTPUT POWER FACTOR VOLTAGE REGULATION 0-100% LOAD FREQUENCY LOCK RANGE OUTPUT FREQUENCY (FREE RUNNING) PHASE DIFFERENCE WITH RESERVE INPUT THD (LINEAR LOAD) +/ - 1 % 45 – 55 Hz / 55 – 65 Hz 50 / 60 Hz + / - 0.1 Hz 120°+ / - 0.
KVA 200 240 300 320 93% 93% 93% 93% OVERALL CHARACTERISTICS OVERALL EFFICIENCY OPERATING ENVIRONMENT: 0 - 40℃ ( 32 - 104℉ ) - TEMPERATURE - HUMIDITY - ALTITUDE MAXIMUM HEAT DISSIPATION(KW) WEIGHT(Kg) 0% - 90% ( NON–CONDENSING ) <1500 M ABOVE SEA LEVEL 11.5 13 16.3 17.
3. INSTALLATION 3.1. Site & Environment Consideration The main function of the UPS is to provide an safe, clean independent electrical supply to the load so that it is free from any random variations, disturbances or interruptions of the utility Mains, provide a constant power supply which is perfectly regulated in both voltage and frequency. And when the Mains is not available, the UPS can provide optimal back-up time depends on the battery bank capacity connected to it.
(e) It is necessary to guarantee the temperature and humidity values of the site into which the UPS will be installed should be within the range allowed by the specification. The UPS is capable of continuous normal operation within a temperature range of 0℃(32℉) to 40℃(104℉). For optimal performance and reliability to prolong UPS’s lifetime, it is recommended to keep the environment temperature below 25℃, and humidity below 80%.
(h) Walls, ceilings, floors or anything near to the UPS should be preferably constructed of non-combustible materials. The portable fire extinguisher should be accessible nearby in case of hazard. (i) Avoid accumulating litter or trash of any sort in or around the UPS system. The floor area surrounding the UPS should be kept clean so that metallic powder and filings are not sucked into the unit thus causing a short circuit and damage to the system.
3.2. Unpacking Carefully take off all the packaging material of the UPS, then carefully locate the UPS onto site which has selected with all the points in section 3.1 kept in mind. The UPS had past the production testing and QC checking all the electrical and mechanical characteristics in detail prior to shipment from the factory, therefore the UPS should be in proper conditions upon receipt.
3.3. Cable Selection The following tables list all the information between KVA of the UPS and the size and rating of the cables. Inadequate cable size or over sized breaker will incur risk of fire or damage of insulation. Therefore, please look up the following tables to determine the input circuit breaker rating and the size of cable for input, output and battery connections. These data are for reference; final decision should be made in accordance with the local electrical regulations.
80 100 120 160 240 320 230/400V 3Φ 230/400V 3Φ 230/400V 3Φ 230/400V 3Φ 230/400V 3Φ 230/400V 3Φ 144 180 216 288 416 554 50 80 100 60*2 100*2 150*2 80 100 125 80*2 125*2 200*2 In(A) 29 46 58 72 91 116 144 182 232 348 463 91 130 182 217 R/S/T(mm2) 8 14 22 30 38 60 80 100 60*2 100*2 125*2 38 60 100 150 N(mm2) 14 22 30 38 60 80 100 125 80*2 125*2 150*2 60 80 125 60*2 CABLE SIZE FOR OUTPUT KVA 20 30 40 50 60 80 100 120 160 240 320 20 30 40 50 OUTPUT 230/400V 3Φ 230/400V 3Φ 230/400V 3Φ 230/400V 3Φ 230/400
FUSE RATING & CABLE SIZE FOR BATTERY ☆ THE BATTERY VOLTAGE IS 295 – 410V KVA 20 30 40 50 60 80 100 120 160 240 320 Imax(A) 60 90 120 150 180 240 300 360 480 720 960 FUSE(A) 63 100 125 160 200 125*2 160*2 200*2 200*2 200*4 200*4 3-7 CABLE(mm2) 22 38 38 50 80 38*2 50*2 80*2 80*2 80*4 80*4
3.4.
For single phase output UPS, the current is very much larger in single phase terminal, therefore the terminal looks bigger than it is needed.
4. OPERATIONS After all cables have been connected, the UPS is ready to operate once power source is available at the input terminal. Before turn on any switch or breaker, check once again the following points listed below: (a) Check the input voltage if it conforms with the UPS’s rated input voltage. (b) Check the input frequency if it conforms with the UPS’s rated input frequency. (c) Check if all load at the output is switched off. (d) All breakers and the battery dis-connector are opened.
～ ～ ～ ～ ～ ～ / / ～ MIMIC DISPLAY UNDER NORMAL OPERATION (d) Push inverter on switch – To on the inverter, the inverter on switch and the control switch must be pressed simultaneously. The inverter will start working and inverter output will be established in 4 sec. The load will be automatically transferred to the inverter 3 sec. later. Now the UPS is in normal operation now. (e) Check if the mimic LED is correct, as shown in the figure.
(b) Open the battery breaker – If you want to shutdown all the power of the UPS, continue to open the battery breaker. Now the DC bus is only supported by the rectifier. (c) Open the rectifier breaker – Open the rectifier breaker will then further take the power source away from the DC bus; therefore the DC bus will start to drop slowly. After 5 min., the DC bus will drop to a safe level (let say 20VDC).
(b) Open the battery breaker – You have to shutdown the power inside the UPS; therefore, continue to open the battery breaker. (c) Open the rectifier breaker – Open the rectifier breaker will then further take the power source away from the DC bus; therefore, the DC bus will start to drop slowly. After 5 min., the DC bus will drop to a safe level (let say 20VDC).
(c) Close the rectifier breaker - The rectifier will be automatically started if the power source connected is correct. The DC voltage will slowly rise up (15 – 30sec.) until the designated voltage is reached, and will keep the value anyhow. Now, the DC is already ready for the inverter. (d) Close the battery breaker - A fuse holder is employed in the battery to the DC bus for safety purpose. Now the batteries will take-over to supply the DC bus if rectifier mains fail.
5. LCD DISPLAY The LCD can display information much more than LED can do. In order to make the display sharp and readable, the LCD is back-lighted by LEDs. But since we want to further prolong the life time of the LED, the CPU will cut off the power of the LED 3 minutes after the last key of either UP, DOWN or ENTER is pressed. Of course the back light will continue if the UP, DOWN or ENTER key is consecutively being pressed. We start from the first page of the LCD.
Serial number is set by factory for the convenience of maintenance personnel who may need to take down the serial no. of the UPS he has attended. The identification no. is set only when external module connect to more than one UPS, each UPS must have a unique number to identify itself, and it should be set by installation technical personnel after installation.
The number can be changed upward or downward by the UP( ↑ ) or the DOWN(↓) key, and can be confirmed by the ENTER(←┘) key. The password is a 4 digit number. The selection will continue if correct password is entered, or will go back to MENU 0 the MAIN MENU if no correct password is entered after 3 trials. The password for entering the < PARAMETER SET > menu is 1-2-3-4. The entering of MENU 12 – the OTHER SETTING menu is permitted by another password, only released to the maintenance personnel.
The inverter should be shut off under short circuit. Since the CPU detect it is short circuit, in order to avoid unnecessary tripping and hurting of the breaker, the static switch remains in conducting the inverter (will not transfer to reserve). List below are all the warning conditions that can be displayed (they are arranged in order of priority, start with the highest priority): 1st row : BYPASS ON / RECT AC FAIL / RECTIFIER PHASE ERROR / RESERVE FREQ.
It is a select menu jump from MENU 1 when the REAL TIME DATA is selected. The cursor (→) is used to select what type of real time data the user what to view, such as RECTIFIER DATA, RESERVE DATA, OUTPUT DATA, OTHER DATA etc. The cursor (→) can be moved upward by the UP (↑) key, and can be moved downward by the DOWN (↓) key. The selection is confirmed by pressing the ENTER (←┘), and change to the menu which the cursor is pointing at.
The abnormal conditions can be displayed are listed below: HIGH DC SHUTDOWN / SHORT CIRCUIT! / FUSE/OVERHEAT / OVERLOAD SHUTDOWN / EMERGENT STOP / INVERTER ABNORMAL / BYPASS ON SHUTDOWN Besides, on the top right corner the screen, the UPS run time is displayed in year/month for the reference of the user or maintenance personnel to estimate the time for maintenance. The screen will go back to MENU 1- SELECT MENU by pressing the ENTER (←┘) key. 5.6.
The second item can be set is the BUZZER ON/OFF, when it is selected ‘BUZZER ON/OFF’ will be displayed, where the ‘ON’ will blink if the buzzer status is on, and the ‘OFF’ will blink if the buzzer status is off. The intended status can be changed by UP ( ↑ ) or DOWN ( ↓ ) key, and is confirmed by ENTER (←┘) key. Then ‘BUZZER = ON’ will be displayed if ‘ON’ is selected or ‘BUZZER = OFF’ will be displayed if ‘OFF’ is selected, the UPS will switch on or off the buzzer according to your selection.
5.8. Menu 7 – Output Data Menu ＜ O U T P U T O U T P U T L O A D : R = X X X R - N = X X X V a c ＞ D A T A F R E Q U E N C Y = X X % S = X X X S - N = X X X % V a c H Z T = X X X % T - N = X X X V a c This menu comes from MENU 3 – the REAL TIME DATA MENU, when the
＜ D A T A ＞ T E M P E R A T U R E = X X C D C V d c O T H E R V O L T A G E = X X X D I S C H A R G E C U R R E N T = X X X A The UP (↑) or DOWN (↓) key has no function in this menu. The screen will go back to MENU 3 – the REAL TIME DATA menu, when ENTER(←┘) is pressed. 5.10.
This menu jumps from MENU 5 the PARAMETER SETTING menu when the item BOOST CHARGE is selected. The user can change the charger parameters through this menu. The cursor (→) can be moved upward by the UP (↑) key, and can be moved downward by the DOWN (↓) key. The selection is confirmed by pressing the ENTER (←┘) key. See in the above figure.
When CHARGE CURRENT is selected, the values that can be selected will be shown (LO/ME/HI). When the battery is boost charged by whatever the reason, the charging current will be limited by a value according the setting in this row. The current value (or the being aimed at) will flash for indication and is confirmed by the ENTER (←┘) key.
- YEAR : 1998 – 2097 - MONTH : 01-12 - DAY : 01 – 31 (internal calendar will correct it if 31 is entered to a 30day month) - HOUR : 0 – 23 - MINUTE : 0 - 59 - DAY OF THE WEEK : MON, TUE, WED, THU, FRI, SAT, SUN The value can be increased upward by the UP (↑) key, and can be decreased downward by the DOWN (↓) key. The value will flash if it is being set, you can continue to push the UP(↑) or the DOWN (↓) key until the expected value is displayed.
See the figure above. Once either one of the items is selected, the values of that item are cleared, and wait for new values to be entered. The values to be entered are either alphabets or numbers except the ID (only numbers are allowed).
6. INTERFACE CONNECTIONS All interfaces are connected from 3R PCB. See the figure as below. 6.1. Dry Contacts 8 terminals of dry contact are provided. These terminals are normal open, when event happens the terminal will conduct. Maximum contact rating is 16A/250VAC(16A/30VDC). They are: INVON – Short whenever inverter is on, open when inverter is off. OVL – Short whenever UPS is overloaded.
FAULT – Short when UPS encounter fault condition such as high dc shutdown, short circuit, fuse/over-heat, overload shutdown, emergent stop, inverter abnormal, bypass on shutdown, and is latched until manual reset (off switch) or 30 sec. after fault condition removal SS – Short when the inverter static switch is conducting, open when reserve static switch is conducting (The two static switches will never conduct simultaneously).
6.2. External Shutdown 2 pairs of terminals CNR 16 are provided for external shutdown. 10mA is needed for turning the internal photo-coupler on. User can use this terminal to shutdown the UPS when emergent condition happens such as fire, short circuit etc. 6.3. DB9 Connection Four RS-485 and one RS-232 are provided to communicate with more sophisticated (option) modules. Generally, RS-485 is for long distance transmission and RS-232 for short distance within 10 meters.
7. OPTIONS This chapter supplies a brief introduction to all the options that is available. Similar products from other manufacturer will not fit into the UPS. Besides, the installation of options need professional settings, trained personnel is required during installation. 7.1. Battery Cabinet The battery cabinet is designed with the same size and outlook as the UPS for convenience of installation and same size and outlook when several cabinets of UPS and battery are align together.
7.2. Emergent Stop Switch A stop switch is available as option installed outside and nearby the UPS for stopping the UPS output in case of emergency such as electrical shock, burning of the load or any emergent conditions you want to stop the AC output immediately. When the emergent stop switch button is pushed, the inverter will stop running and the static switch remains at inverter, therefore there will be no AC supply to the output.
7.5. Auto Dialing Module – UPSCALL™ In case of abnormal situation occur, the UPSCALLTM will automatically dial to specified phone numbers to inform the person in charge to take prompt action. The module, being with built-in 23A12V battery, consumes power only when in the process of dialing so as to be operated under AC source failure.
8. REDUNDANCY Redundancy can be roughly divided in two types: serial (hot standby) redundancy and parallel (active) redundancy. DS-C33 series adopts mainly the serial redundancy. 8.1. Serial Redundancy ONE TO ONE SERIAL REDUNDANCY The serial (hot standby) redundancy consist of two UPS with one UPS’s (UPS1) connect to the reserve/bypass input of the other UPS (UPS2). See in the above figure.
The two UPSs are running in normal mode currently under normal conditions. When one of them has problem, the load will still has protection from inverter and battery. If UPS1 fail and UPS2 is running normally, the load is unaffectedly supplied from UPS2. If UPS2 fail and UPS1 is running normally, UPS2 will transfer the load to UPS1 and the load will continue to be protected by inverter and battery of UPS1. If both of them are running normally, UPS2 takes up all load and UPS1 bears no load.
ONE TO TWO SERIAL REDUNDANCY NOTE: It is easy and simple to connect our UPS in serial redundancy.
8.2. Parallel Redundancy In order to provide more capacity for loads and backup time, we can use the parallel redundancy operation. (Please refer to the following diagram.) Only 1 UPS can be connected in the parallel redundancy operation. Parallel Control PCB has been integrated into CPU, so there is no extra control unit needed.
9. HELP Abnormal Description & Checkpoint Solution The rectifier breaer has not switch on. Switch on the rectifier breaker. The input voltage is not correct (out of the normal range). Connect the right AC source. The phase sequence of AC input is incorrect, input rotation error, and the LCD will display warning message ‘RECT PHASE ERROR’ in the STATUS/WARN menu (MAIN menu → SELECT menu → STATUS/WARN menu). ROTATION ERROR LED on left side of the front panel will lit up too. Correct the R.S.T.
Abnormal Description & Checkpoint Solution (4) The voltage difference between NEUTRAL and GROUND become abnormally higher﹖ There is external wiring error of R.S.T phase and N. G. instead of UPS unit itself,. Correct the external wiring system. (5) The inverter cannot start up. Apart from INVERTER SS LED in left side of the front panel, there is other ones still illuminate. Do trouble shooting according to the LED instruction. Switch on the inverter before DC bus has been established completely.
Abnormal Description & Checkpoint (6) Fans cannot work while UPS is on. The fuses positioned behind PCB holder have been blown or are not installed well. Replace the fuses or install them well. Abnormal voltage output in R phase. Refer to PCB LED Detecting Guide and check the 3T PCB of R phase. (7) The rectifier shunt down and HIGH DC LED lit up. Voltage limit function failure in the 3B, which contributes to the DC voltage becomes over 430V. Refer to PCB LED Detecting Guide and check the 3B PCB.
Abnormal (10) The inverter shut down during running while the FAULT LED lit and buzzer beeps continuously. Description & Checkpoint Solution Bypass breaker has been closed (switched on). Open the bypass breaker then the inverter will restore running automatically. The output is short-circuited, including the load itself. Clear the short circuit at the output, then switch off the inverter. Secondly, switch on once more to restart the inverter. The output is overloaded.
Abnormal (11) Transferring failure between reserve and inverter. (12) Phase lack when AC output. (13) The mimic battery LED in the front panel blinks. Description & Checkpoint Solution DC BUS voltage becomes abnormal during transferring. DCV value can be read in LCD menu. Take out the P&P module 2 and make sure the SCR drive connection is OK. 3P PCB has problem. Refer to PCB LED Detecting Guide. Take out the P&P module 2 and check the 3P PCB. LED A4(OTF) in the 3A PCB lit up.
Abnormal Description & Checkpoint Solution (14) All LED in the front panel light up. CPU inserting error in 3A or 3R PCB Insert the CPU into right socket. (15) Communicatio n interface is not good. Communication cables are connected improperly. Correct the wiring. Communication software is not installed successfully. Reinstall the software. Communication port setup error. Correct the setup. CPU inserting error in 3R PCB. Insert the CPU into right socket.
