KEHUA TECH KR-RM Series User Manual
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KEHUA TECH KR-RM Series User Manual

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KR-RM Series(1～3kVA) UPS

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  • Page 1 User Manual KR-RM Series(1～3kVA) UPS...
  • Page 3 Copyright © Xiamen KehuaHengshengCo.,Ltd.2016.All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Xiamen KehuaHengshengCo.,Ltd. Trademarks and Permissions and other Kehua trademarks are trademarks of Xiamen KehuaHengsheng Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders.
  • Page 4 Summaries Thank you for choosing the Kehua KR-RM series(1～3kVA) UPS product! This document gives a description of the KR-RM series(1～3kVA) UPS, including the features, performance, appearance, structure, working principles, installation, operation and maintenance, etc. Please save the manual after reading, in order to consult in the future.
  • Page 5 KR-RM Series(1～3kVA) UPS User Manual Foreword Change History Changes between document issues are cumulative. The latest document issue contains all the changes made in earlier issues. Issue 001 (2016-08-29) First issue. All rights reserved ©Xiamen Kehua Hengsheng Co., Ltd.

  • Page 6: Table Of Contents

    3.1 Basic Principle ..............................7 3.2 Structure ................................8 3.2.1 Display Interface of the KR-RM Series(1～3kVA) UPS ................ 8 3.2.2 Structure of the Front Panel and Rear Panel of KR1000-RM ............... 10 3.2.3 Structure of the Front Panel and Rear Panel of KR2000-RM ............... 10 3.2.4 Structure of the Front Panel and Rear Panel of KR3000-RM ...............
  • Page 7 KR-RM Series(1～3kVA) UPS User Manual Contents 4.5.1 KR1000-RM ............................18 4.5.2 KR2000-RM ............................18 4.5.3 KR3000-RM ............................19 4.6 Check the Electrical Connection ........................20 5 Use and Maintenance ......................... 22 5.1 Preparation for Startup at the First Time ......................22 5.2 Startup Sequence ............................

  • Page 9: Safety Description

    KR-RM Series(1～3kVA) UPS User Manual 1 Safety Description 1 Safety Description This chapter mainly describes the safety announcements. Prior to performing any work on the UPS, please read the user manual carefully to avoid human injury and device damage by irregular operations.
  • Page 10 KR-RM Series(1～3kVA) UPS 1 Safety Description User Manual Even if all external power are disconnected, there still exists residual electricity inside UPS, and the output terminal bar may exist high voltage which may cause human injury. It is necessary to put UPS aside for enough time(≥10min) to release charge completely, then open the UPS...
  • Page 11 KR-RM Series(1～3kVA) UPS User Manual 1 Safety Description Be careful of electrostatic! To prevent human electrostatic from damaging sensitive components, it must wear an anti-static wrist strap before touching sensitive components (such as the flapper, circuit board, IC chip, etc.),and the other end of anti-static wrist strap should be grounded well.
  • Page 12 KR-RM Series(1～3kVA) UPS 1 Safety Description User Manual Prevent battery electrolyte from overflowing. The overflowing electrolyte will corrode the metal objects and circuit board, which will lead to device damage and circuit board short-circuit. 10. Battery should be placed far away from fire source and all electrical equipments which easily cause sparks, which is to avoid human injury or unnecessary loss.

  • Page 13: Overview

    They are widely applied to the many key business areas, such as post, finance, network, stock, railway, etc. 2.2 Model Meaning The model meaning of KR-RM series(1～3kVA) is as shown in Figure2-1. KR □□□□ -RM Equipped with tower-mounting...

  • Page 14: Features

    KR-RM Series(1～3kVA) UPS 2 Overview User Manual 2.3 Features Intelligent RS232 and USB communication Through RS232 or USB standard data port and UPS power management software, it can realize the three remote function between the computer and UPS, monitor the running and electrical data of UPS on the computer, perform ON/OFF operation remotely and support SNMP network adaptor (external, connect with UPS through RS232), which makes UPS be a network new member.

  • Page 15: Basic Principle And Structure

    3.1 Basic Principle When the mains is normal, the input of KR-RM series UPS converts into the steady DC voltage through PFC, which supplies for DC/AC inverter to output steady 220V AC and charges the battery at the time.

  • Page 16: Structure

    RS232 port of PC 7(5) 5(grounding end) 3.2 Structure 3.2.1 Display Interface of the KR-RM Series(1～3kVA) UPS Figure3-2 The display interface of the KR-RM series(1～3kVA) UPS(rack-mounting) Icon Illustration The icon illustration is as shown in Table3-2. Table3-2 Icon illustration Icon...
  • Page 17 KR-RM Series(1～3kVA) UPS User Manual 3 Basic Principle and Structure Icon Illustration UPS works in the battery mode UPS works in the ECO mode Buzzer is in the silence status UPS failure Stand each unit respectively: voltage/DC voltage/frequency/temperature/load percentage Operation instructions of buttons on the panel ...

  • Page 18: Structure Of The Front Panel And Rear Panel Of Kr1000-Rm

    KR-RM Series(1～3kVA) UPS 3 Basic Principle and Structure User Manual − Short press" " button, it will transfer the display information among output voltage, output frequency, input voltage, input frequency, battery voltage, inner temperature, output load percentage, fault prompting(when UPS failure), etc.

  • Page 19: Installation

    KR-RM Series(1～3kVA) UPS User Manual 4 Installation 4 Installation This chapter mainly describes the product installation, including the installation place and environment requirements, packing, installation procedures, wire selection, electrical connection, etc. 4.1 Installation Place and Environment Requirements Before installing UPS, the installation place and environment should meet the basic requirements of normal running, which describes in this chapter.

  • Page 20: Unpacking

    KR-RM Series(1～3kVA) UPS 4 Installation User Manual  Altitude: meet the provisions of GB3859.2-93.  Verticality: without vibration and the vertical gradient should be less than 5º .  Pollution grade: gradeⅡ． UPS should be installed in the environment where is with good ventilation, cool, proper humidity and without dust.

  • Page 21: Installation Procedures

    KR-RM Series(1～3kVA) UPS User Manual 4 Installation 4.3 Installation Procedures The battery of KR-RM series UPS is hot-pluggable, the installation procedures is as below. Step 1 Dismantle the plastic panel. Step 2 Dismantle the battery baffle. Step 3 Unplug the battery wire.
  • Page 22 KR-RM Series(1～3kVA) UPS 4 Installation User Manual Step 4 Pull out the battery pack. Step 5 Replace the battery pack and insert the new battery pack into UPS. Step 6 Plug the battery wire. All rights reserved ©Xiamen Kehua Hengsheng Co., Ltd.
  • Page 23 KR-RM Series(1～3kVA) UPS User Manual 4 Installation Step 7 Install the battery baffle and lock the bolts. Step 8 Install the plastic panel. Generally, the new purchased UPS has installed battery pack and battery baffle. User can install the plastic panel refers to Step 8.
  • Page 24 4 Installation User Manual As the KR-RM series UPS is small, it can put UPS on the flat surface directly without other fixed or installation. In consideration of the convenient operation and maintenance and heat dissipation, keep a clearance at least 30cm～50cm around the UPS and 50cm on the top of UPS. Keep the indoor with good ventilation.

  • Page 25: Wire Selection

    Ensure all air switches of UPS are switched off and place UPS well, do the electrical connection. Use sockets in the AC input and output of KR-RM series(1～3kVA)UPS. Connect the AC input socket with the mains socket by the power wire and the load power wire plugs in the output socket.

  • Page 26: Kr1000-Rm

    KR-RM Series(1～3kVA) UPS 4 Installation User Manual 4.5.1 KR1000-RM The wiring for the input and output of KR1000-RM is as shown in Figure4-2. Upper communication device Extended battery cabinet PRODUCED BY: ZHANGZHOU KEHUA TECHNOLOGY CO.,LTD. (CHINA) CIRCUIT PROTECTOR NAME ： UPS...

  • Page 27: Kr3000-Rm

    KR-RM Series(1～3kVA) UPS User Manual 4 Installation Upper communication device PRODUCED BY: ZHANGZHOU KEHUA TECHNOLOGY CO.,LTD. (CHINA) NAME ： UPS MODEL ： KR2000-RM INPUT ： 1W+N+PE,AC220V,50Hz,9.2A OUTPUT ： 1W+N+PE,AC220V,50Hz,9.1A 2000VA/1800W DC INPUT ： 48V,42.6A CIRCUIT PROTECTOR 250V,16A AC INPUT DC INPUT...

  • Page 28: Check The Electrical Connection

    KR-RM Series(1～3kVA) UPS 4 Installation User Manual Upper communication device PRODUCED BY: ZHANGZHOU KEHUA TECHNOLOGY CO.,LTD. (CHINA) NAME ： UPS MODEL ： KR3000-RM INPUT ： 1W+N+PE,AC220V,50Hz,13.6A OUTPUT ： 1W+N+PE,AC220V,50Hz,13.6A 3000VA/2700W DC INPUT ： 72V,42.6A CIRCUIT PROTECTOR 250V,20A AC INPUT DC INPUT...
  • Page 29 KR-RM Series(1～3kVA) UPS User Manual 4 Installation Check items Check the grounding wire: whether the grounding wire of UPS connects with the grounding terminal bar of the machine room reliably. Check whether the voltage between the neutral wire and the grounding wire is less than 5Vac.

  • Page 30: Use And Maintenance

    KR-RM Series(1～3kVA) UPS 5 Use and Maintenance User Manual 5 Use and Maintenance This chapter mainly describes the operation process, operation method, daily maintenance and troubleshooting, etc. 5.1 Preparation for Startup at the First Time Before using UPS, check the following items to ensure that UPS works normally.

  • Page 31: Battery Maintenance

    KR-RM Series(1～3kVA) UPS User Manual 5 Use and Maintenance Step 1 Press " " button on the panel to start UPS. About 10s later, it can start computer or other devices. Step 2 When UPS works steadily, it can switch on the power switch of load device. Start the high power device first, and start the small power device.

  • Page 32: Battery Replacement

    KR-RM Series(1～3kVA) UPS 5 Use and Maintenance User Manual  Press " " button on the panel to shut down UPS, which avoids that battery discharges for a long time when the mains powers off. If the UPS stops working for a long time, it should charge and discharge battery periodically, which is to avoid battery damage for self-discharge.

  • Page 33: Periodic Preventative Maintenance

    KR-RM Series(1～3kVA) UPS User Manual 5 Use and Maintenance  Observe the safety operation regulations. If any doubt, consult the person who is familiar with UPS.  Remember that there always exists dangerous voltage inside UPS. Before maintenance and adjustment, use a voltmeter to check the power is turned off and in a safety condition.

  • Page 34: Troubleshooting

    KR-RM Series(1～3kVA) UPS 5 Use and Maintenance User Manual Phenomenon Possible reasons recover automatically UPS is serious over-load or the output circuit is short-circuit. It should reduce load to the proper capacity or find the short-circuit reason. The common reason is...
  • Page 35 KR-RM Series(1～3kVA) UPS User Manual 5 Use and Maintenance Table5-2 UPS fault phenomenon and its possible reason Fault phenomenon Possible reason The output load is overload or short-circuit, UPS will shut Buzzer long beeps, the fault down automatically. indicator is on, UPS works in the Drive or power tube fault.
  • Page 36 KR-RM Series(1～3kVA) UPS 5 Use and Maintenance User Manual Table5-3 The meaning of fault symbol Fault symbol Meaning BUS FAULT Bus over-voltage or under-voltage fault/bus buffering fault Battery over-voltage or under-voltage fault/battery discharging time-limited BAT FAULT protection OUT FAULT Inverter over-voltage or under-voltage fault/output short-circuit/output overload...

  • Page 37: Package, Transportation, Storage

    KR-RM Series(1～3kVA) UPS User Manual 6 Package, Transportation, Storage 6 Package, Transportation, Storage This chapter mainly describes the announcements about the package, transportation, storage. 6.1 Package The package of product is carton. When packing, pay attention to the placing direction requirements.

  • Page 38: A Technical Specifications

    KR-RM Series(1～3kVA) UPS A Technical Specifications User Manual Technical Specifications Model KR1000-RM KR2000-RM KR3000-RM Index When the voltage range is 176Vac～295Vac, it can connect with more than 75% load; when the voltage range is 154Vac～176Vac, it can connect with Voltage range(V) 50～75% load;...
  • Page 39 KR-RM Series(1～3kVA) UPS User Manual A Technical Specifications Model KR1000-RM KR2000-RM KR3000-RM Index mode(ms) ＜ ＜ 2000VA/1800W 3000VA/2700W 1000VA/900W ＜ Load ≤ ≤ Load Load overload ≤1300VA/1040W for 1min 2600VA/2080W 3900VA/3120W ＜ ＜ 2600VA/2080W 3900VA/3120W Medium Overload 1300VA/1040W＜Load ≤ ≤...
  • Page 40 KR-RM Series(1～3kVA) UPS A Technical Specifications User Manual Model KR1000-RM KR2000-RM KR3000-RM Index Dimensions(mm) 438*420*87 438*570*87 (width*depth*height) Weight(kg) 13.2 19.9 24.8  Specifications are subject to change without prior notice. All rights reserved ©Xiamen Kehua Hengsheng Co., Ltd.

  • Page 41: B Acronyms And Abbreviations

    KR-RM Series(1～3kVA) UPS User Manual B Acronyms and Abbreviations Acronyms and Abbreviations Alternating Current Direct Current Energy Control Operation Emergency Power Off International Electrotechnical Commission Liquid Crystal Display Protective Earthing All rights reserved ©Xiamen Kehua Hengsheng Co., Ltd.
  • Page 42 KR-RM Series(1～3kVA) UPS B Acronyms and Abbreviations User Manual RS232 Recommend Standard232 Simple Network Management Protocol SNMP Uninterruptible Power System Universal Serial Bus All rights reserved ©Xiamen Kehua Hengsheng Co., Ltd.
  • Page 43 4402-01797 001...

This manual is also suitable for:

Kr1000-rmKr2000-rmKr3000-rm

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