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Arena 3P3 Service Manual

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UNINTERRUPTIBLE POWER SYSTEM
SERVICE MANUAL
Arena 3P3&3P1&1P1 6-10KVA RT Model
Rev. 1.0
1

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Summary of Contents for Arena 3P3

  • Page 1 UNINTERRUPTIBLE POWER SYSTEM SERVICE MANUAL Arena 3P3&3P1&1P1 6-10KVA RT Model Rev. 1.0...

  • Page 2: Table Of Contents

    Table of contents General information ............................3 Getting start ............................3 Important safety instructions ....................... 3 Electric Specifications ............................4 Functional block ..............................6 Working principle of the major functional block .................... 7 Switch Power Supply ..........................7 PFC/Boost circuit ..........................8 Inverter circuit ............................

  • Page 3: General Information

    1. General information 1.1 Getting start This manual is for Arena 3/3&3/1&1/1 10K(L) RT UPS. It can help service person perform the basic maintenance and repair service. This manual only focuses on the service section, so you should get the basic operation of the UPS from the user manual, and make sure you had read and understood the user manual before reading the manual.

  • Page 4: Electric Specifications

    2. Electric Specifications SPECIFICATION MODEL 1P1 10K(L) 3P1 10K(L) 3P3 10K(L) 2P2 6K(L) Input 176～276 VAC(L-N)@ Full Load 88～155 Input Voltage 110～300 VAC(L-N) @ Half Load VAC(L-N) 46～54 Hz for 50Hz system Input Frequency 56～64 Hz for 60Hz system  0.99 @100% R/RCD Load Input Power Factor ...
  • Page 5 Battery Mode >91% ECO Mode >97% Overload Protection Alarm and Transfer To Bypass after 30min @ Line mode 100%～110% Alarm and Cut Off Output after 3min @ Battery mode Alarm and Transfer To Bypass after 5min @ Line mode 110%～130% Alarm and Cut Off Output after 30s @ Battery mode Alarm and Transfer To Bypass after 10s @ Line mode 130%～150%...

  • Page 6: Functional Block

    3. Functional block As a true online UPS, the product employ a double conversion topology, comprise following functional blocks, as shown in Figure 3.1. Figure 3.1 function block diagram The CNTL block control the action of the UPS system, the CNTL also provides the communication interface for receiving and executing command from user via the panel or other communication protocol.

  • Page 7: Working Principle Of The Major Functional Block

    4. Working principle of the major functional block 4.1 Switch Power Supply The switch power supply (SPS) supplies DC power for UPS operation. The input voltage of the SPS is the battery or AC input voltage. Figure 4.1 basic circuit of power supply This is the fly-back DC-DC converter, fly-back operation can be easily recognized from the position of the dots on the transformer primary and secondary (these dots show starts of the winds).

  • Page 8: Pfc/Boost Circuit

    4.2 PFC/Boost circuit Figure 4.2 Boost circuit topology As shown in the Figure 4.2, when Q1/Q2 is on, and D1/D2 is off, the choke (L1/L2) will store energy and the current crossing the choke will increase by degrees with time pass. When the Q1/Q2 is off, the choke releases energy and the D1/D2 is on, the current of the choke will be descending with time pass.

  • Page 9: Charger

    4.4 Charger The Charger of utility is to recharge and maintain the batteries at fully charged condition .The charger charges the batteries with a constant current at initial stage, and as battery voltage keep increasing, the charge current decrease accordingly until the charge voltage reached the constant voltage level, and then the charger turn to the floating charge mode.

  • Page 10: Functional Explanations For Each Pcb

    5. Functional explanations for each PCB Table 5.1 PCB information of Arena 1/1&3/1&3/3 10K(L) Item Series name PCB name PCB serial number Quantity Remark 71-302254-XXG 71-302253--XXG Charger 71-302260-XXG CNTL 71-302257-XXG 71-302261-XXG 71-302259-XXG Arena IPOP 71-302252-XXG 1/1&3/1 EPO + 10K(L) 71-302264-XXG...
  • Page 11 71-302898-XXG 71-302900-XXG Charger 71-302899-XXG CNTL 71-303212-XXG 71-303125-XXG 71-302936-XXG IPOP 71-302901-XXG EPO + 71-302264-XXG Arena 2/2 COMM 6K(L) LCD(12-400134- XXG) SYS LCD 12-400134- XXG combine with PCBA PANEL 71-303040-XXG (71-303040-XXG) PFC SCR 71-302256/302255- Daughter board on PFC DRIVE PCBA INV SCR...

  • Page 12: Pfc Board (Power Factor Correct Board)

    CHARGE SWITCH EPO + COMM Arena 2-2 6K LV structure 5.1 PFC board (Power Factor Correct Board) The PFC board consists of Rectifier and PFC/Booster. When UPS works in line mode, the Rectifier and PFC will work, It changes the AC power to DC power stored in the BUS capacitor.

  • Page 13: Inv Board (Inverter Board)

    Figure 5.1.1 Arena 1/1&3/1&3/3-10K PFC board Figure 5.1.2 Arena 2/2-6K PFC board 5.2 INV board (Inverter Board) The INV Board includes STS and Inverter. It converts the DC power to a pure sine waveform, in the purpose of less or no transfer time.
  • Page 14 Figure 5.2.1 Arena 1/1&3/1-10K Inverter board Figure 5.2.2 Arena 3/3-10K Inverter board Figure 5.2.3 Arena 2/2-6K Inverter Board...

  • Page 15: Charge Board

    After the UPS is connected to the utility power, the charger will charge the batteries automatically except in Battery mode or during battery test, and the charge current is can be set from 1A~6A via LCD or communication port. Figure 5.3.1 Arena 1/1&3/1&3/3-10K Charge Board Figure 5.3.2 Arena 2/2-6K Charge Board 5.4 CNTL board (Control board)

  • Page 16: Bus Board

    Figure 5.4.1 Arena 1/1&3/1-10K Control board Figure 5.4.2 Arena 3/3-10K&2/2-6K Control board 5.5 BUS board The BUS board work as tow stable DC power, storing energy from PFC and passing it to inverter and charger. Figure 5.5 Bus board...

  • Page 17: Sps Board (Switch Power Supply)

    5.7 IPOP EMI board The EMI board can prevent the UPS from external electronic/magnetic noise generated by other electronic systems, and also prevent other systems from the noise generated inside of the UPS system. Figure 5.7.1 Arena 1/1&3/1-10K IPOP board...

  • Page 18: Epo And Communication Board

    Figure 5.7.2 Arena 3/3-10K IPOP board Figure 5.7.3 Arena 2/2-6K IPOP board EPO and Communication board Communication board include EPO and COMM board. The Communication board provide USB interface to the user, and it also provide one EPO port to cut off...

  • Page 19: Sys Lcd Panel Board

    Figure 5.8 Communication board 5.9 SYS LCD Panel board LCD combine with PCBA , the Panel board provide the LED and LCD display to the user Figure 5.9.1 Panel PCBA...

  • Page 20: Switch Board

    Figure 5.9.2 LCD 5.10 SWITCH board The AC input disconnect, used for DC start. Figure 5.10 Switch board...

  • Page 21: Interface

    6. Interface Button Operation Table 6.1 The function keys for UPS module Control Key Description  When the input only connect the battery, press this buttont, awakens Battery Starts the SPS.  Press this button to turn on the UPS. ON/ENTER ...

  • Page 22: Lcd Display

    BYPASS LINE BATTERY ALARM Mode UPS Power On ● ● ● ● Standby mode ○ ○ ○ ○ Bypass mode ● ○ ○ ○ Line mode / Converter mode ○ ● ○ ○ Battery mode ○ ○ ● ○ Fault mode ○...
  • Page 23 Figure 6.1 LCD Display Structure 6.3.2 Main interface (Home Page) After initialization, the main screen will display as Figure 2. Main screen is divided into three parts. Line Mode M IP1:230.0V/50.0Hz IP2:230.0V/50.0Hz IP3:230.0V/50.0Hz OP1:230.0V/50.0Hz OP2:230.0V/50.0Hz OP3:230.0V/50.0Hz Bat:220.0V/220.0V Load:100/100/100% Warning: 00...

  • Page 24: Trouble Shooting

    1) UPS Mode: Current Operation Mode. 2) it will display the UPS running status mode and parallel information as refer to below table. information New module Master S<n> Slave, <n> means the number 3) UPS Measurement Data. 4) When alarms happen, the warning or fault information will display. When UPS in Battery mode or Battery Test mode, the backup time will display.

  • Page 25: Trouble Shooting Table

    immediately to avoid more risk or danger. Trouble shooting table Most of the fault and warnings need to be released by authorized service personnel. Few of them can be solved by users themselves. LCD Message Explanation Solution Turn off UPS and then restart the UPS. If it fails again, mainly check that the The rectifiers could not start within IGBT and SCR etc power components for...
  • Page 26 voltage within specified time. again, contact service personnel. Mainly check that the IGBT etc power components are well. Meanwhile check Fault 12:Inv Volt High Inverter voltage is too high. that the components on the drive circuit are well. Mainly check that the IGBT etc power components are well.
  • Page 27 Fault 24:Op STS Short Output relay or STS is short circuited. Contact service personnel. Cut off input power，connect to power Fault 25:Wiring Fail The wiring is wrong. turn on again. Fault 26:Bat Fuse Open Battery fuse is broken. Replace the battery Fuse. Fault 27:Charge Short The battery is short circuited.
  • Page 28 The temperature in UPS is higher than Check if the ambient temperature is over Warning 0A:OverTemp 75°C. At this time, the UPS is still specification. running. Or contact service personnel. Warning 0B:PFCCurUnbal PFC current is unbalance. Contact service personnel Check if the fan is blocked or contact Warning 0C:FanError Fan error.

  • Page 29: Failure Shooting

    Alarm 1 Warning! Dry Contact Input As stated. Remove the node Alarm 2 Warning! Control Module As stated. Contact service personnel. SPS 1 Fault Warning! Control Module As stated. Contact service personnel. SPS 2 Fault Trouble shooting in else cases Problem Possible cause Action...
  • Page 30 Communication protocol setting Display setting Figure 7.1 Hyper terminal setting 2. After you finished the setting, you can type the command in the command area. 3. +BUS voltage regulation: Type “BUSP+/- XX” command (XX is two digits from 00 to 19), then press the “ENTER”...

  • Page 31: Quick Start

    Q54, Q55, Q57, Q58, Q60, Q62. A-K Short or open F1, F2 , F3. Fuse open Others RY1, RY2, RY3, RY4, RY5, RY6. Relay Arena 1/1&3/1-10K(L) CHARGER (71-302260-XXG) Section Circuit Block Checked components Component Type Failure condition Q31, Q35. Mosfet D-S short or open Power Q32, Q36.
  • Page 32 I-O Short or open NTC1 Current-limiting resistance Open Others U1, U6. Vcc short to GND Arena 1/1&3/1-10K(L) IPOP EMI(71-302252-XXG) Section Circuit Block Checked components Component Type Failure condition D5, D6, D7, D8, D9, D10, D11, D12, D13, Power D14, D15, D16, D17, D18, D19, D20,...
  • Page 33 7.3.2 Core parameters of INV section The most likely problems occur on the PFC section includes: the Fuse open, the IGBT broken, the Diode broken, the SCR broken. 7.3.2.1 Arena 1/1&3/1-10K(L) INV(71-302253-XXG) Section Checked components Instrument function Reference Value Failed condition F1, F2.

  • Page 34: Test Step

    Q25, Q26, Q27, Q28, Q29 (E, G) Diode Voltage Droop Short or open 2.88V (G, E) Resistance 51KΩ Short or open 7.3.3 Core parameters of Charge The most likely problems occur on the Charger section includes: the fuse broken, the MOSFET broken, the Diode broken, the SCR broken.
  • Page 35 Repair the UPS according to the trouble shooting Connect the DC source and press SPS failure and Check the wiring ON button less than repair it and correct it 0.5s LCD light and fan DC voltage on the rotates? SPS is OK? Information of the CNTL failure and LCD display OK?

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