Delta NT-15K User Manual
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Delta NT-15K User Manual

Nt series, three phase 15/30/60/100 kva
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The power behind competitiveness
Delta UPS - Ultron Family
NT Series, Three Phase
15/ 30/ 60/ 100 kVA
User Manual
www.deltapowersolutions.com

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  • Page 1 The power behind competitiveness Delta UPS - Ultron Family NT Series, Three Phase 15/ 30/ 60/ 100 kVA User Manual www.deltapowersolutions.com...
  • Page 2 Failure to heed these instructions and warnings will void the warranty. Copyright © 2018 by Delta Electronics Inc. All Rights Reserved. All rights of this User Manual (“Manual”), including but not limited to the contents, information, and figures are solely owned and reserved by Delta Electronics Inc.

  • Page 3: Table Of Contents

    Table of Contents Table of Contents Chapter 1 : Important Safety Instructions ------------------------------- 1 Chapter 2 : Introduction ------------------------------------------------------- 4 Chapter 3 : Operation Modes ------------------------------------------------ 5 Normal Mode (Single) --------------------------------------------- 5 Back-up Mode (Single) -------------------------------------------- 5 Reserve AC Supply Mode (Single) ----------------------------- 6 Maintenance Bypass Mode (Single) --------------------------- 6 Normal Mode (Parallel) -------------------------------------------- 7 Back-up Mode (Parallel) ------------------------------------------ 8...
  • Page 4 UPS Installation Checklist ---------------------------------------26 Floor Weight Loading Table -------------------------------------28 Cable Selection-----------------------------------------------------28 Electrical Connections --------------------------------------------31 4.9.1 15~30kVA Output 208/ 120Vac Terminal Wiring Diagram (Only for Dual Input Application) ---------------------------------------31 4.9.2 60kVA Output 208/ 120Vac Terminal Wiring Diagram (Only for Dual Input Application) ---------------------------------------32 4.9.3 100kVA Output 208/ 120Vac Terminal Wiring Diagram (Only for Dual Input Application) ----------------------------------------32...
  • Page 5 Table of Contents -----------------------------------------------66 -------------------------66 --------------------------66 ---------------67 ------------------------67 -----------------------68 ------------69 Chapter 8 : Optional Accessories -----------------------------------------70 Input Harmonic Filter ----------------------------------------------70 Remote Monitor ---------------------------------------------------70 Monitoring Software ----------------------------------------------70 ----------------------------------71 Appendix 2 : Warranty --------------------------------------------------------73...

  • Page 6: Chapter 1 : Important Safety Instructions

    Chapter 1 : Important Safety Instructions This manual contains important instructions that should be followed during in- stallation and maintenance of the UPS and batteries. Before wiring and opera- tion, read all instructions thoroughly. tection of Electronic Computer/ Data Processing Equipment, ANSI/ NFPA 75. Install the UPS in a well-ventilated indoor area where is free of conductive con- contact with water.
  • Page 7 Chapter 1 Important Safety Instructions The UPS is designed to power modern computer loads and associated periph- drives, etc. Do not connect (1) inductive loads, (2) capacitive loads or (3) life support equipment to the UPS. sonnel. The UPS contains high voltage which is potentially hazardous. The risk of dangerous high voltage is possible when batteries are still connected to the UPS even though the UPS is disconnected from AC power sources.
  • Page 8 3. Wear insulating gloves and boots. 4. Do not lay tools or metal parts on the top of batteries. 5. Disconnect the charging source prior to connecting or disconnecting the battery terminals. WARNING: This is a class-A UPS. In a domestic environment, the product may cause radio interference, in which case, the user may be required to take additional measures.

  • Page 9: Chapter 2 : Introduction

    Chapter 2 Introduction Chapter 2 : Introduction The NT series UPS is a dedicated design for large scales of power systems such as data centers, communication systems, satellite systems, network rooms, medical devices, monitoring, safety and emergency systems as well as factory facilities. The UPS adopts high frequency SPWM (Sinusoidal Pulse-Width Modulation) inverter technology.

  • Page 10: Chapter 3 : Operation Modes

    Chapter 3 : Operation Modes There are four basic operation modes for the NT series UPS, either of which can deliver loads with reliable and high quality power source in any conditions. The operation modes are described as follows. 3.1 Normal Mode (Single) MANUAL BYPASS BREAKER RESERVE...

  • Page 11: Reserve Ac Supply Mode (Single)

    Chapter 3 Operation Modes When the utility AC power fails or unstable voltage occurs, the batteries will instantly provide DC power to keep continuous operation. Hence, the UPS output will not be interrupted. 3.3 Reserve AC Supply Mode (Single) Power Flow MANUAL BYPASS BREAKER Power Flow...

  • Page 12: Normal Mode (Parallel)

    When maintenance is needed and the reserve AC power is normal, the UPS can be switched from inverter mode to bypass mode manually with continuous power delivering to the loads. Under such conditions, the internal power will be completely As a result, risks will not exist in the UPS so service personnel can perform maintenance safely (see Figure 3-4).

  • Page 13: Back-Up Mode (Parallel)

    Chapter 3 Operation Modes 3.6 Back-up Mode (Parallel) UPS 1 MANUAL BYPASS BREAKER RESERVE RESERVE INPUT BREAKER Power Flow Power Flow Power Flow RECTIFIER INPUT OUTPUT BREAKER BREAKER MAINS RECTIFIER INVERTER STATIC SWITCH BATTERY BANK Power Flow LOAD UPS 2 MANUAL BYPASS BREAKER RESERVE...

  • Page 14: Reserve Ac Supply Mode (Parallel)

    3.7 Reserve AC Supply Mode (Parallel) UPS 1 Power Flow MANUAL BYPASS BREAKER Power Flow RESERVE RESERVE INPUT BREAKER Power Flow Power Flow RECTIFIER INPUT OUTPUT BREAKER BREAKER MAINS RECTIFIER INVERTER STATIC SWITCH BATTERY BANK Power Flow LOAD UPS 2 Power Flow MANUAL BYPASS BREAKER...

  • Page 15: Maintenance Bypass Mode (Parallel)

    Chapter 3 Operation Modes 3.8 Maintenance Bypass Mode (Parallel) Power Flow UPS 1 Power Flow MANUAL BYPASS BREAKER RESERVE RESERVE INPUT BREAKER Power Flow RECTIFIER INPUT OUTPUT BREAKER BREAKER MAINS RECTIFIER INVERTER STATIC SWITCH BATTERY BANK Power Flow LOAD Power Flow UPS 2 Power Flow MANUAL BYPASS...

  • Page 16: Hot Standby Redundancy

    3.9 Hot Standby Redundancy AC power of UPS2 (see Figure 3-9). Such configurations could reduce the UPS 1 MANUAL BYPASS BREAKER RESERVE RESERVE INPUT Power Flow BREAKER Power Flow Power Flow Power Flow UPS 1 OUTPUT RECTIFIER INPUT OUTPUT BREAKER BREAKER MAINS RECTIFIER...

  • Page 17: Common Battery

    Chapter 3 Operation Modes 3.10 Common Battery To save on costs and installation space, the parallel UPS units can share the same external battery cabinet(s). Please see Figure 3-10. UPS1 MANUAL BYPASS BREAKER RESERVE RESERVE INPUT BREAKER Power flow Power flow Power flow Power flow OUTPUT...

  • Page 18: Dry Contacts

    3.11 Dry Contacts Figure 3-11 The NT series UPS provides 6 sets of programmable dry contacts that can be set as Normally Open or Normally Closed. The default settings of the 6 sets of dry contacts are described as follows. Normal: The UPS runs in normal mode.
  • Page 19 Chapter 3 Operation Modes Table 3-1: Dry Contact Event Description Event Description Event Description UPS Normal Load On Bypass Load On Battery Inverter Fuse Failure Battery Low Battery Replacement Bypass Abnormal UPS Failure Battery Ground Fault Parallel Communication Battery Test Failure Abnormal Inverter Overload Manual Bypass On...

  • Page 20: Chapter 4 : Installation & Wiring

    Chapter 4 : Installation & Wiring 4.1 UPS Mechanism Data (Input: 480Vac; Reserve I/P: 208/ 120Vac; Output: 208/ 120Vac) Figure 4-1 Rating Width Depth Height (kVA) (mm) (mm) (mm) 1400 1400 Figure 4-1 Bottom View (Front) Figure 4-2 Ultron NT Series...
  • Page 21 Chapter 4 Installation & Wiring (Input: 480Vac; Reserve I/P: 208/ 120Vac; Output: 208/ 120Vac) Figure 4-3 Rating Width Depth Height (kVA) (mm) (mm) (mm) 1700 Figure 4-3 Bottom View (Front) Figure 4-4...
  • Page 22 (Input: 480Vac; Reserve I/P: 208/ 120Vac; Output: 208/ 120Vac) Figure 4-5 Rating Width Depth Height (kVA) (mm) (mm) (mm) 1200 1700 Figure 4-5 R7.5-6 Bottom View 1200 (Front) Figure 4-6 Ultron NT Series...

  • Page 23: External Battery Cabinet

    Chapter 4 Installation & Wiring 4.2 External Battery Cabinet Figure 4-7 External Battery Cabinet Dimensions Table (Figure 4-7) Battery Type Width (mm) Depth (mm) Height (mm) 12V/ 26AH × 29PCS 1400 12V/ 40AH × 29PCS 1400 12V/ 26AH × 58PCS 1700 12V/ 40AH ×...

  • Page 24: External & Internal Views

    4.3 External & Internal Views 4.3.1 15~30kVA (Input: 480Vac; Reserve I/P: 208/ 120Vac; Output: 208/ 120Vac) Front view: LCD control panel Figure 4-8 Lateral view: open the front door Figure 4-9 Open the front door Figure 4-8 Figure 4-9 Ultron NT Series...
  • Page 25 Chapter 4 Installation & Wiring Front view with door open & front panel removal: one battery Figure 4-10 start-up switch, four fuses, four breakers, one SMART slot, and communication interfaces (NT-Q board). LCD Control Panel Battery start-up switch Fuses SMART slot (From left to right) 1.

  • Page 26: 60Kva (Input: 480Vac; Reserve I/P: 208/ 120Vac; Output: 208/ 120Vac)

    4.3.2 60kVA (Input: 480Vac; Reserve I/P: 208/ 120Vac; Output: 208/ 120Vac) Front view: LCD control panel. Figure 4-11 Lateral view: open the front door. Figure 4-12 Open the front door Figure 4-11 Figure 4-12 Ultron NT Series...
  • Page 27 Chapter 4 Installation & Wiring Front view with door open & front panel removal: one battery Figure 4-13 start-up switch, four fuses, four breakers, one SMART slot, and communication interfaces (NT-Q board). LCD Control Panel Battery start-up switch Fuses (From left to right) SMART slot 1.

  • Page 28: 100Kva (Input: 480Vac; Reserve I/P: 208/ 120Vac; Output: 208/ 120Vac)

    4.3.3 100kVA (Input: 480Vac; Reserve I/P: 208/ 120Vac; Output: 208/ 120Vac) Front view: LCD control Panel. Figure 4-14 Lateral view: open the front doors. Figure 4-15 Figure 4-14 Open the front doors Figure 4-15 Ultron NT Series...
  • Page 29 Chapter 4 Installation & Wiring Front view with door open & front panel removal: one battery Figure 4-16 start-up switch, four fuses, four breakers, one SMART slot, and communication interfaces (NT-Q board). LCD control panel Battery start-up switch Fuses (From left to right) 1.

  • Page 30: Installation Environment And Safety Precaution

    4.4 Installation Environment and Safety Precaution To ensure UPS normal operation, prolong UPS lifetime, and protect UPS from disorder and malfunction, the user should select an optimal installation location and environment according to the following safety instructions. Install the UPS indoors. Do not place it outdoors. loading capacity to bear the weight of the UPS.

  • Page 31: Electrical Connection Precaution

    For more information, please contact your local dealer, sales representative or Delta customer service. The external battery cabinet must be grounded and connected to the UPS’s ‘Battery Cabinet Ground’...
  • Page 32 Whether the UPS room has enough space for UPS ventilation and personnel maintenance. Whether the space between the top of the UPS and the ceiling is large enough for heat ventilation. Whether the air conditioning is capable of keeping ambient around 25°C. Whether the humidity is in rated limit.

  • Page 33: Floor Weight Loading Table

    Chapter 4 Installation & Wiring 4.7 Floor Weight Loading Table Output voltage : 208/ 120V (3 4W) UPS rating (kVA) 1125 Weight (Kg) 1046 1148 1130 Weight loading (kg/m External Battery Cabinet Battery Type 12V/ 26AH 12V/ 40AH 12V/ 26AH 12V/ 40AH 12V/ 100AH (AH)
  • Page 34 UPS Capacity (VA) 100K BAT. Cable (AWG) 6 AWG 4 AWG 1/0 AWG 1/0 AWG × 2 BAT. Fuse (A) GND. Cable (AWG) 6 AWG 4 AWG 2 AWG 1/0 AWG NOTE : 1. The cable rating mentioned above is based on 105°C PVC type of cable. 2.
  • Page 35 Chapter 4 Installation & Wiring Model Wiring Location Wire Gauge (* Bolt Type Torque (Ib-in) (* Main Input 2 AWG X 1 88.5 Reserve Input 4/0 AWG X1 88.5 NT- 60K Output 4/0 AWG X1 88.5 Battery 4/0 AWG X1 130±4 6 AWG X 1 88.5...

  • Page 36: Electrical Connections

    4.9 Electrical Connections WARNING: 1. AC power source connection: Three-phase (R/ S/ T) of AC power source must be in positive phase sequence and the R/ S/ T/ N cables must be 2. Battery source connection: The positive and negative poles of the battery cabinet must be connected to the terminal poles ‘+’...

  • Page 37: 60Kva Output 208/ 120Vac Terminal Wiring Diagram (Only For Dual Input Application)

    Chapter 4 Installation & Wiring 4.9.2 60kVA Output 208/ 120Vac Terminal Wiring Diagram (Only for Dual Input Application) Ground Reserve Output Input Battery Battery Cabinet Ground 4.9.3 100kVA Output 208/ 120Vac Terminal Wiring Diagram (Only for Dual Input Application) Input Battery Reserve Output...

  • Page 38: Ups Parallel Wiring Diagram (Dual Input)

    UPS and its connected bypass input power to ensure that each bypass input power’s current is even. For more information, please contact your local dealer, sales representative or Delta customer service. Ultron NT Series...

  • Page 39: Communication Interfaces (Nt-Q Board)

    Chapter 4 Installation & Wiring 4.10 Communication Interfaces (NT-Q Board) DRY CONT. #1 -- Dry contact 1 UPS normal CNQ14 -- Dry contact 2 Load on reserve DRY CONT. #2 DRY CONT. #3 -- Dry contact 3 Load on battery CNQ15 -- Dry contact 4 Battery low voltage...

  • Page 40: Dry Contact Wiring Diagram (Default Value)

    4.11 Dry Contact Wiring Diagram (Default Value) +12VR RLQ1 RELAY-SPDT DRY1 +12VR CNQ14 DRY1COM RLQ2 DRY 1: NORMAL: P1-2 NO DRY1NO RELAY-SPDT DRY2 DRY2COM DRY 2: RESERVE: P3-4 NO DRY2NO +12VR RLQ3 RELAY-SPDT DRY3 CNQ15 DRY3COM +12VR DRY 3: BACKUP: P1-2 NO DRY3NO DRY4COM DRY 4: BAT_LOW: P3-4 NO...

  • Page 41: Chapter 5 : External Battery Cabinet

    Chapter 5 External Battery Cabinet Chapter 5 : External Battery Cabinet The NT series UPS must be connected to at least one external battery cabinet to ensure that the critical loads connected are protected when a power failure occurs. 5.1 External Battery Cabinet Usage Warnings To ensure that the batteries are fully charged, please charge the batteries at least 8 hours before initial use of the UPS.
  • Page 42 For safety's sake, you must insulate the batteries from their touched metal cabinets by installing insulated devices (e.g. insulated trays or boxes) in between. For relevant information about the insulated materials for such application, please contact Delta customer service. Ultron NT Series...

  • Page 43: Chapter 6 : Ups Display And Settings

    Chapter 6 UPS Display and Settings Chapter 6 : UPS Display and Settings 6.1 Control Panel Figure 6-1: Control Panel EPO switch: When an emergency event occurs, press the EPO switch to turn Reserve power LED (green): When the reserve source is normal. Maintenance bypass power LED (red): When the manual bypass breaker is turned on.

  • Page 44: Lcd Display Screen

    6.2 LCD Display Screen 1. Button functions: (A) “ ” “ ” and “ ” buttons: a. Use the “ ” and “ ” buttons to choose different functions, and then press the “ ” button to enter the choice. b.
  • Page 45 Chapter 6 UPS Display and Settings After entering the “Measure Page”, press the “ ” or “ ” button to monitor the present status and parameters of the UPS. The display order is as follows: Rectifier Input Rectifier Voltage Current Temperature Inverter U V : 3 8 0 V...
  • Page 46 5. In “Main Menu”, press the “ ” or “ ” button to choose “Parameter Setting” and press the “ ” button to enter the “Parameter Setting” menu. Before entering the “Parameter Setting” menu, password needs to be keyed in. Use the “...
  • Page 47 Chapter 6 UPS Display and Settings 5-2. Press the “ ” or “ ” button to choose “Bypass Input” and press the “ ” button to enter the “Bypass Input Voltage/ Frequency” setting page. Press the “ ” or “ ”...
  • Page 48 Press the “ ” or “ ” button to set up the battery capacity AH and press the “ ” To leave the “Battery Capacity AH” setting page, press the “ ” and “ ” buttons simultaneously to go back to the “Battery Setting” menu. 5-3.2.
  • Page 49 Chapter 6 UPS Display and Settings 5-3.4. Press the “ ” or “ ” button to choose “Stop Voltage” and press the “ ” button to enter the “Battery Stop Voltage” setting page. Press the “ ” or “ ” button to set up Battery the battery stop voltage and press the Stop Voltage...
  • Page 50 To leave the “Battery Test Voltage” setting page, press the “ ” and “ ” buttons simultaneously to go back to the “Battery Setting” menu. 5-3.7. Press the “ ” or “ ” button to choose “Test Time” and press the “ ”...
  • Page 51 Chapter 6 UPS Display and Settings 5-3.9. Press the “ ” or “ ” button to choose “Install Date” and press the “ ” button to enter the “Install Date” setting page. Press the “ ” or “ ” button to set up Year 0 3 the UPS installation date and press the Mon 0 4...
  • Page 52 5-4. Press the “ ” or “ ” button to choose “Time and Date” and press the “ ” button to enter the “Time and Date” setting page. Press the “ ” or “ ” button to set up Year 0 3 Sec 6 0 the time and date, and press the “...
  • Page 53 Chapter 6 UPS Display and Settings The UPS ID shown on the Start Display (see Figure 6-2) is for application of the RS-485 interface and monitoring software (UPSentry 2012). It can be set up right from the LCD control panel. To leave the “UPS ID Setting”...
  • Page 54 To leave the “Language Setting” page, press the “ ” and “ ” buttons simultaneously to go back to the “Parameter Setting” menu. To leave the “Parameter Setting” menu, press the “ ” and “ ” buttons simultaneously Main Menu to go back to the “...
  • Page 55 Chapter 6 UPS Display and Settings Choose ON: turn on the inverter. Inverter Output Press the “ ” and “ ” buttons simul- taneously to go back to the “System Control” menu. 6-2. Press the “ ” or “ ” button to choose “Buzzer ON/ OFF” and press the “ ”...
  • Page 56 Press the “ ” and “ ” buttons simul- Battery Test OK taneously to go back to the “System Control” menu. Battery Test Fail Please check battery aging and make sure make sure battery line is normal 6-4. Press the “ ”...
  • Page 57 Chapter 6 UPS Display and Settings 6-5. Press the “ ” or “ ” button to choose “UPS Output ON/ OFF” and press the “ ” button to enter the “UPS Output” setting page. Choose ON: The UPS has normal out- put.
  • Page 58 Press the “ ” and “ ” buttons simultaneously to go back to the “System Con- trol” menu. System Control To leave the “ ” menu, press the “ ” and “ ” buttons simultaneously Main Menu to go back to the “ ”.
  • Page 59 Chapter 6 UPS Display and Settings 7-1. Inverter Shutdown Event Code Event code UPS Status Inverter o/p voltage abnormal. (Inverter voltage high) (R phase) Inverter o/p voltage abnormal. (Inverter voltage high) (S phase) Inverter o/p voltage abnormal. (Inverter voltage high) (T phase) Inverter o/p voltage abnormal.
  • Page 60 Event code UPS Status ECO to Inverter. (Bypass voltage abnormal) (R phase) ECO to Inverter. (Bypass voltage abnormal) (S phase) ECO to Inverter. (Bypass voltage abnormal) (T phase) ECO to Inverter. (Inverter - Bypass voltage abnormal) (3 phase) ECO to Inverter. (Bypass - Output voltage abnormal) (R phase) ECO to Inverter.
  • Page 61 Chapter 6 UPS Display and Settings Battery SERIAL NUMBER Normal Test Result G E S 8 0 3 N T 1 1 0 0 0 0 Battery Test Date VERSION 0 3Year 05Mon 21Day Battery Install N T – A 0 0 0 C 0 0 0 R 0 0 0 Date 0 2Year 02Mon 21Day System Time...
  • Page 62 Code UPS Status Inhibit bypass output Load on reserve Do inverter test Load on inverter Load on inverter at backup mode Low battery Low battery shutdown UPS shutdown due to short-circuit 30 58 Manual bypass on Parallel communication cable abnormal UPS shutdown due to inverter fault UPS shutdown due to inverter overload Over load under parallel (N-1)

  • Page 63: Chapter 7 : Ups Operation

    Chapter 7 UPS Operation Chapter 7 : UPS Operation Please check the following items before start-up of the UPS. 1. All circuit breakers or switches are in the OFF position. 2. Each external battery cabinet’s battery breaker is in the OFF status. 3.

  • Page 64: Battery Mode Start-Up Procedures (Single)

    5. If the battery test is normal, use a voltage meter to measure the UPS’s output voltage (per phase). If normal, turn on the UPS Output breaker. 7.2.2 Battery Mode Start-up Procedures (Single) NOTE : 1. Before executing the following start-up procedures, please refer to 7.1 2.
  • Page 65 Chapter 7 UPS Operation 7.2.3.1 From Normal Mode to Manual Bypass Mode (Single) WARNING: to the UPS have already been safely shut down before you perform the turn- 1. Press the ‘OFF’ and ‘ ’ buttons simultaneously for 3 seconds. After the reserve AC power is normal (the voltage and frequency of the reserve AC power is within the setup range), the inverter will be turned off immediately and it will be the reserve AC power to supply power to the connected loads.

  • Page 66: Normal Mode Start-Up Procedures (Parallel)

    7.2.3.2 From Manual Bypass Mode to Normal Mode (Single) NOTE : Before executing the following start-up procedures, please refer to 7.1 1. Connect all fuses. 2. Turn on the Reserve Input breaker and UPS Output breaker. 3. After that, the connected loads will be power-supplied by the manual bypass and the LCD will display ‘Manual Bypass ON’.

  • Page 67: Battery Mode Start-Up Procedures (Parallel)

    Chapter 7 UPS Operation (At Max. 8 Units) Parallel ID No. 5. Turn on each UPS’s breaker and wait about 30 seconds. After that, the DC BUS voltage will be established. 6. Turn on each external battery cabinet’s Battery breaker. 7.

  • Page 68: Manual Bypass Mode Start-Up Procedures (Parallel)

    5. Use the RS-232 and UPS parameter setting software (please contact service personnel) to set up each parallel UPS’s parallel ID No. The parallel ID No. is the parallel ID No. (At Max. 8 Units) Parallel ID No. 6. After each UPS’s DC BUS voltage reaches around 330V, each UPS’s battery contactor will start up.
  • Page 69 Chapter 7 UPS Operation 7.2.6.1 From Normal Mode to Manual Bypass Mode (Parallel) WARNING: If you perform the following turn-off procedures to each parallel UPS, all power supplying to the UPS will be completely cut off. Please make sure the critical loads connected to the UPS have already been safely shut down 1.
  • Page 70 9. When each UPS is running in Manual Bypass Mode, there is no high voltage inside any UPS except the wiring terminals and Manual Bypass breaker. Do not touch any UPS’s wiring terminals and Manual Bypass breaker during UPS maintenance process to avoid electric shock. 7.2.6.2 From Manual Bypass Mode to Normal Mode (Parallel) NOTE : Before executing the following start-up procedures to each parallel...
  • Page 71 Chapter 7 UPS Operation WARNING: to the UPS have already been safely shut down before you perform the turn- UPS Output breaker. 2. Press the ‘OFF’ and ‘ ’ buttons simultaneously for 3 seconds. When the reserve AC power is normal, the power will be switched from inverter to bypass, and the LCD will display ‘Bypass Mode’.
  • Page 72 UPS Output breaker. breaker and Reserve Input breaker. WARNING: In battery mode, even if you follow the above-mentioned turn-off UPS. Do not touch the UPS to avoid eclectic shock. WARNING: to the UPS have already been safely shut down before you perform the turn- In manual bypass mode, the LCD is in the OFF status.
  • Page 73 Chapter 7 UPS Operation 2. Repeat the above-mentioned Step 1 to the rest of the parallel UPSs in order to let all parallel UPSs run in ‘Bypass Mode’. Battery breaker. breaker. 5. (1) Wait about 5 minutes for each DC CAP to discharge, and ensure that each LCD shows the battery voltage lower than 5V.
  • Page 74 WARNING: If you perform the following turn-off procedures to each parallel UPS, all power supplying to the UPS will be completely cut off. Please make sure the critical loads connected to the UPS have already been safely shut down In manual bypass mode, each parallel UPS’s LCD is in the OFF status. To completely shut down every parallel UPS, turn off each unit’s Manual Bypass breaker.

  • Page 75: Chapter 8 : Optional Accessories

    Chapter 8 Optional Accessories Chapter 8 : Optional Accessories 8.1 Input Harmonic Filter Besides the built-in 12-pluse rectifier, the passive-type input harmonic filter (L-C filter) is another solution to reducing the total input current harmonic distortion. Moreover, it is also a means to improve the input power factor of the UPS. 8.2 Remote Monitor The optional remote monitor can be connected to the UPS via the built-in RS-485 interface, and the UPS operating status can be transmitted to the remote control...
  • Page 76 Power Rating kVA (PF=0.9) Nominal Voltage 480V (3 3W+G) Voltage Range ±20 Input Nominal Frequency Frequency Range ±5 Maximum Current Nominal Voltage 208/120 (3 4W+G) T.H.D. (With Linear Load) Voltage Regulation: Static ±1 Output Dynamic ±5 Nominal Frequency Frequency Regulation: With Internal Oscillator ±0.01 With Mains Synchronize...
  • Page 77 Appendix 1 Power Rating kVA (PF=0.9) Parallel Redundant Yes ( up to 8 UPS units) Yes ( local and remote) Multi-speed Fan Speed Control SRAM Fault Sequence Memory Remote Programmable Parameter Setting Battery Start Function Input Harmonic Improvement Normal Mode 110% : 60 minutes ;...

  • Page 78: Appendix 2 : Warranty

    Appendix 2 : Warranty Seller warrants this product, if used in accordance with all applicable instructions, to be free from original defects in material and workmanship within the warranty period. If the product has any failure problem within the warranty period, Seller will repair or replace the product at its sole discretion according to the failure situation.

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