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KEHUA TECH MR33 Series User Manual
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KEHUA TECH MR33 Series User Manual

(75k-600k) modular ups
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编号/Number
名称/Name
印刷尺寸：□32K(210mm×140mm) □
□130mm*150mm □其他:_______
纸
质：□
封面: 157g / m
√
2
□105g / m
□封面: 128g / m
□其他:_______
包装方式：□
参照《WI02-ET-266 纸质类随机文件加工技术规范》 □其他:_______
√
印刷颜色：□
黑白 □四色 □其他:_______
√
特殊工艺：□
无 □其他:_______
√
其他要求：□
无 □其他:_______
√
注：此页为手册加工说明，不属于手册内容。
升级说明：Modify Figure3-16 and Figure3-22.
拟制/日期
Prepared By/Date
洪小凤
科
4402-02833
MR Series (75K-600K) Modular
UPS User Manual
手册印刷要求
16K(210mm×285mm) □8K(420mm×285mm)
√
2
铜版纸，内页:100g / m
哑粉纸双面印刷
2
哑粉纸，内页: 100g / m
Checked By/Date
华
公
2
双胶纸
2
双胶纸
审核/日期
司
版本/Version
004
备注/Remark
英文
核准/日期
Approved By/Date
KH01-M026.2

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  • Page 1 KH01-M026.2 科 华 公 司 编号/Number 版本/Version 4402-02833 MR Series (75K-600K) Modular 名称/Name 备注/Remark 英文 UPS User Manual 手册印刷要求 印刷尺寸：□32K(210mm×140mm) □ 16K(210mm×285mm) □8K(420mm×285mm) √ □130mm*150mm □其他:_______ 纸 质：□ 封面: 157g / m 铜版纸，内页:100g / m 双胶纸 √ □105g / m 哑粉纸双面印刷...
  • Page 2 MR33 Series (75K-600K) Modular UPS User Manual...
  • Page 4 Copyright © Kehua Hengsheng Co., Ltd. 2020.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 Kehua Hengsheng Co., Ltd. Trademarks and Permissions and other Kehua trademarks are trademarks of Kehua Hengsheng Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders.
  • Page 5 MR33 Series (75K-600K) Modular UPS Foreword User Manual Foreword Summaries Thank you for choosing the modular MR series modular UPS! This document gives a description of the MR series modular UPS, including the features, performance, appearance, structure, working principles, installation, operation and maintenance.etc.
  • Page 6 MR33 Series (75K-600K) Modular UPS User Manual Foreword Symbol Description Alerts you to a potentially hazardous situation that could, if not avoided, result in equipment damage, data loss, performance deterioration, or unanticipated results. Anti-static prompting. Be care electric shock prompting.

  • Page 7: Table Of Contents

    MR33 Series (75K-600K) Modular UPS Contents User Manual Contents 1 Safety Description......................... 1 1.1 Safety Announcements ............................. 1 1.1.1 Safety Instructions ..........................1 1.1.2 Use Announcements for Battery ......................4 1.1.3 Anti-Static Protection ..........................5 1.1.4 Grounding Requirements ........................5 1.1.5 Safety Warning Label Setting .........................
  • Page 8 MR33 Series (75K-600K) Modular UPS User Manual Contents 2.6 Alarm Function ............................... 24 3 Installation............................ 27 3.1 Installation Procedure ............................. 27 3.2 Installation Preparation ..........................28 3.2.1 Installation Tools ........................... 28 3.2.2 Installation Environment ........................29 3.2.3 Installation Space ..........................30 3.2.4 Input and Output Wire Selection ......................
  • Page 9 MR33 Series (75K-600K) Modular UPS Contents User Manual 4.5.1 Bypas Information ..........................64 4.5.2 Mains Information ..........................64 4.5.3 Battery Information ..........................65 4.5.4 Power Module Information ........................66 4.5.5 Inverter Information ..........................67 4.5.6 Output Information ..........................67 4.6 Setting Management ............................68 4.6.1 System Manage .............................
  • Page 10 MR33 Series (75K-600K) Modular UPS User Manual Contents 5.3.6 Switch to Inverter Power Supply from Maintenance Bypass ..............93 5.3.7 Emergency Power Off (EPO) ........................ 94 5.3.8 Emergency Power Off Recovery ......................94 5.4 Parallel System Startup and Shutdown ......................94 5.4.1 Start Parallel System ..........................

  • Page 12: Safety Description

    MR33 Series (75K-600K) Modular UPS User Manual 1 Safety Description 1 Safety Description This chapter introduces 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 13 MR33 Series (75K-600K) Modular UPS 1 Safety Description User Manual It is prohibited to touching any terminal or conductor that connected with grid circuit, or, it may cause deadly danger. The damaged device or device fault may cause electric shock or firing! ...
  • Page 14 MR33 Series (75K-600K) Modular UPS User Manual 1 Safety Description If the output of the UPS cannot be half-wave rectification load or inductive load, such as air-condition, hair drier, starter, electric drill, motor, daylight lamp, etc. Please do not put finger or tool into rotating fans to avoid endanger the human safety or damage the device.

  • Page 15: Use Announcements For Battery

    MR33 Series (75K-600K) Modular UPS 1 Safety Description User Manual Warning label should be affixed away from UPS location! When UPS is power off, there still exists dangerous voltage. It should affix warning labels away from UPS location and the warning labels should include: 1. It supplies power for UPS. 2. Please disconnect UPS before wiring.

  • Page 16: Anti-Static Protection

    MR33 Series (75K-600K) Modular UPS User Manual 1 Safety Description 1.1.3 Anti-Static Protection The static generated by human bodies may damage the electrostatic-sensitive components on PCB. Before touching the sensitive component, please wear anti-static rings and well connect the other end of the anti-static rings to ground.
  • Page 17 MR33 Series (75K-600K) Modular UPS 1 Safety Description User Manual supplement to the local safety regulations. Our company does not undertake the responsibility caused by violating the common safety operation requirements or safety standards for design, manufacture and use the device.

  • Page 18: Environment Requirements

    MR33 Series (75K-600K) Modular UPS User Manual 1 Safety Description Drilling holes on the cabinet is prohibited! Inappropriate drilling will damage the components inside the UPS. Metal debris generated by drilling will lead to circuit board short circuit. Changing the UPS configuration, structure or assembly will affect the performance of the UPS. If user needs to do like this, please consult the manufacturer in advance.

  • Page 19: Overview

    MR33 Series (75K-600K) Modular UPS 2 Overview User Manual 2 Overview This chapter mainly introduces the product features, work principle, structure of the UPS, including panel indicator meaning and signal port illustration. 2.1 Product Intro MR series UPS is modular online double-conversion UPS. They are made up of cabinet, power module, bypass module, system control box and distribution unit.
  • Page 20 MR33 Series (75K-600K) Modular UPS User Manual 2 Overview Energy conservation and high efficiency Adopts advanced PFC control technology, the input power factor is greater than 0.99, which greatly improves the use ratio of electric energy and reduces the load of power grid, and save the cost of power distribution.

  • Page 21: Work Principle

    MR33 Series (75K-600K) Modular UPS 2 Overview User Manual 2.3 Work Principle 2.3.1 Work Principle Diagram Work principle diagram of the UPS is as shown in Figure2-1. Maintenance bypass Bypass input Bypass module Mains input Output Battery input Power module 1...
  • Page 22 MR33 Series (75K-600K) Modular UPS User Manual 2 Overview Battery power supply mode When mains abnormal, system will switch to battery input, the Boost circuit promotes the battery voltage to a certain value and then supply the DC power to the inverter, that makes the AC output without interruption phenomenon and then protect the load.

  • Page 23: Structure

    MR33 Series (75K-600K) Modular UPS 2 Overview User Manual transforming of manual maintenance bypass, AC power is supplied for load by maintenance bypass breaker. At this time, the inner UPS has no electricity, maintainer can perform the maintenance safely. 2.4 Structure MR series modular UPS is mainly made up of cabinet, operation panel, power module, bypass module, system control box, distribution plate, etc.

  • Page 24: Operation Panel

    MR33 Series (75K-600K) Modular UPS User Manual 2 Overview Figure2-3 Appearance of MR33400, MR33500, MR33600 2.4.1 Operation Panel Figure2-4 Operation panel of MR series modular UPS Table2-1 Illustration for the operation panel Name Illustration ○ Touch screen Human-machine interactive interface...

  • Page 25: Sturcture Layout

    MR33 Series (75K-600K) Modular UPS 2 Overview User Manual Name Illustration On (green): the rectifier work normally. ○ AC/DC indicator On (red): the rectifier work abnormally. On (green): the inverter work normally. ○ DC/AC indicator On (red): the inverter work abnormally.

  • Page 26: Mr33200, Mr33300 (Top Wiring)

    MR33 Series (75K-600K) Modular UPS User Manual 2 Overview Figure2-5 System layout diagram of MR3375, MR33125, MR33200, MR33300 (bottom wiring) 2.5.2 MR33200, MR33300 (Top wiring) Figure2-6 System layout diagram of MR33200, MR33300 (top wiring) All rights reserved ©Kehua Hengsheng Co., Ltd.

  • Page 27: Mr33400, Mr33500, Mr33600

    MR33 Series (75K-600K) Modular UPS 2 Overview User Manual 2.5.3 MR33400, MR33500, MR33600 Figure2-7 System layout diagram of MR33400, MR33500, MR33600 (open front door) 2.5.4 Power Module Appearance Figure2-8 Appearance of power module All rights reserved ©Kehua Hengsheng Co., Ltd.
  • Page 28 MR33 Series (75K-600K) Modular UPS User Manual 2 Overview Operation panel Figure2-9 Operation panel of power module Table2-2 Illustration for the operation panel of power unit Name Illustration On: power module stay in inverter status ○ RUN indicator (green) Flicker: power module stay in standby status.

  • Page 29: Bypass Module

    MR33 Series (75K-600K) Modular UPS 2 Overview User Manual 2.5.5 Bypass Module Appearance Figure2-10 Appearance of bypass module Operation panel Figure2-11 Operation panel of bypass module Table2-3 Illustration for the operation panel of bypass unit Name Illustration ○ RUN indicator (green) On: bypass unit is running.

  • Page 30: System Control Box

    MR33 Series (75K-600K) Modular UPS User Manual 2 Overview Name Illustration  Place the ready switch to “unlock” status, the indication color is green, the bypass module is not locked with the cabinet, and at this time, the bypass module can be ○...
  • Page 31 MR33 Series (75K-600K) Modular UPS 2 Overview User Manual SNMP card (optional) Figure2-13 SNMP card Table2-5 Illustration for SNMP card Name Illustration Connect to user’s monitor port by network wire. ○ Ethernet port Pin definition: Pin4、Pin5：3.3V、Pin1：TXP；Pin2：TXP； Pin3：REP；Pin6：RXN；Pin11：GND ○ E indicator (red) On: communication fault ○...
  • Page 32 MR33 Series (75K-600K) Modular UPS User Manual 2 Overview Table2-6 Illustration for system control card Name Illustration The output double bus control port is used in double bus system to synchronize the output frequency and phase ○ BSC port position of each system, which is to ensure the two bus can switch each other.
  • Page 33 MR33 Series (75K-600K) Modular UPS 2 Overview User Manual Figure2-15 System monitor card Table2-7 Illustration for system monitor card NO. Name Illustration ○ Output dry contact See Table2-8. ○ Input dry contact See Table2-9. External EPO normal closed input port. When NC and COM is ○...
  • Page 34 MR33 Series (75K-600K) Modular UPS User Manual 2 Overview Silk-screen Signal Function description When the signal valid, COM and NO is closed, COM and LINE FAIL NC is opened. Allowable withstand voltage is 250V/1A. The signal signal is preset and cannot set.

  • Page 35: Alarm Function

    MR33 Series (75K-600K) Modular UPS 2 Overview User Manual 2.6 Alarm Function Once the UPS abnormal, it will send sound & light alarm. The alarm or protection function of the UPS is as shown in Table2-10. Table2-10 Abnormal status and alarm/ protection function...
  • Page 36 MR33 Series (75K-600K) Modular UPS User Manual 2 Overview Alarm action Protection action Fault name System card redundancy. Environment temperature is too high. Power module without redundancy Generator startup failure Generator shutdown failure Communication fault. BMS communication fault. The communication of cabinet inner busbar 1 abnormal.
  • Page 37 MR33 Series (75K-600K) Modular UPS 2 Overview User Manual Alarm action Protection action Fault name Bypass lack-phase. Bypass module off-line. ECO voltage out of range. ECO output is not allowed. ECO frequency out of range. Mains power down. Mains over-voltage Mains under-voltage Mains voltage unbalance is too large.

  • Page 38: Installation

    MR33 Series (75K-600K) Modular UPS User Manual 3 Installation 3 Installation This chapter mainly introduces the installation of the UPS, including unpacking and checking, installation procedure, installation preparation, mechanical installation and system checking and test, etc. The UPS installation should be performed by authorized person who is special trained and achieve the qualification of high-voltage and AC power.

  • Page 39: Installation Preparation

    MR33 Series (75K-600K) Modular UPS 3 Installation User Manual 3.2 Installation Preparation 3.2.1 Installation Tools Tools All rights reserved ©Kehua Hengsheng Co., Ltd.

  • Page 40: Installation Environment

    MR33 Series (75K-600K) Modular UPS User Manual 3 Installation The installation tools should be with isolated operation to avoid electric shock. 3.2.2 Installation Environment  Do not install the UPS in the place where exceeds the provision of technology index (temperature: 0℃～40℃, relative humidity: 0％～95％).

  • Page 41: Installation Space

    MR33 Series (75K-600K) Modular UPS 3 Installation User Manual 3.2.3 Installation Space Maintain a clearance of at least 800mm from the front panel, side pane or rear panel of the UPS to the wall or adjacent device, and maintain a clearance of at least 500mm from the top of the UPS to ceiling, which is to ensure good ventilation, as shown in Figure3-2.
  • Page 42 MR33 Series (75K-600K) Modular UPS User Manual 3 Installation Table3-1 Wire and terminal specification recommendation value (the power of single power module is 25kVA) Model MR3375 MR33125 System max. capacity (kVA) AC input current (A) 4×50 4×120 Recommended wire diameter (mm...
  • Page 43 MR33 Series (75K-600K) Modular UPS 3 Installation User Manual Table3-2 Wire and terminal specification recommendation value (the power of single power module is 50kVA) MR33200, MR33300, MR33400, MR33500, Model MR33600 System max. capacity (kVA) AC input current (A) 1045 Recommended 2 ×...

  • Page 44: Surge Protection Device

    MR33 Series (75K-600K) Modular UPS User Manual 3 Installation MR33200, MR33300, MR33400, MR33500, Model MR33600 System max. capacity (kVA) 2 × (3 2 × (3 × 2 × (3 × 3 × (3 × 3 × (3 × Recommended wire +/N/- ×120)
  • Page 45 MR33 Series (75K-600K) Modular UPS 3 Installation User Manual The UPS should be transported by trained professional. During transporting, please take care and avoid impact or falling off. If the UPS needs to be stored for a long time after unpacking, it is suggested to package the UPS with original plastic bag.

  • Page 46: Unpacking

    MR33 Series (75K-600K) Modular UPS User Manual 3 Installation 3.3.2 Unpacking The package of the UPS is similar. Following we take MR33400 as an example to illustrate. Step 1 Check if the package appearance is in good condition and if there has any transportation damage. If any damage, please inform the carrier immediately.

  • Page 47: Mechanical Installation

    MR33 Series (75K-600K) Modular UPS 3 Installation User Manual Step 6 Unscrew the bolts that connected with cabinet and wooden bracket by socket wrench, the bolt position is as shown in Figure3-6. Figure3-6 Bolt position ----End 3.4 Mechanical Installation In this section, we take ground installation as an example to illustrate.
  • Page 48 MR33 Series (75K-600K) Modular UPS User Manual 3 Installation The wiring groove requirements of MR series UPS is the same, in above figure, we take MR33400 as an example to illustrate. The recommended wiring groove size is as follows: for MR3375, MR33125, MR33200, MR33300：A×...
  • Page 49 MR33 Series (75K-600K) Modular UPS 3 Installation User Manual Step 2 Drill 4 holes (hole diameter isφ 13) by hammer drill according to the bottom installation hole size (as shown in Figure3-10, Figure3-11). If the UPS is installed on U-steel, drill 4 hole (hole diameter isφ14) on the U-steel directly, and then perform Step 4 directly.
  • Page 50 MR33 Series (75K-600K) Modular UPS User Manual 3 Installation Bolt 1. Drill holes on the installation ground by hammer drill. Spring gasket Flat gasket 2. Tighten The expansion bolts mildly, and put it to the hole vertically, and then knock the expansion bolt by rubber hammer till all the expansion tube into the hole.

  • Page 51: System Wiring

    MR33 Series (75K-600K) Modular UPS 3 Installation User Manual Figure3-13 Install bottom cover plates of MR33400, MR33500, MR33600 ----End 3.5 System Wiring There are two types of MR3375、MR33125、MR33200、MR33300 UPS with up and bottom wiring. The MR33400、MR33500、MR33600 UPS are compatible with top and bottom wiring.
  • Page 52 MR33 Series (75K-600K) Modular UPS User Manual 3 Installation Step 2 Connect the input, output and battery wires according to Figure3-16, and fasten the bolts. Figure3-15 Inlet and outlet schematic diagram Figure3-16 Wiring terminal It is suggested to equip DC breaker for battery DC input, specific wire connection is as shown in Figure3-17.
  • Page 53 MR33 Series (75K-600K) Modular UPS 3 Installation User Manual Figure3-17 Battery wire connection diagram Step 3 After finishing the wire connection, install the bottom wiring cover plate and fill the empty party with insulation fireproofing mud, then the wiring is completed.

  • Page 54: Mr33200, Mr33300 (Top Wiring)

    MR33 Series (75K-600K) Modular UPS User Manual 3 Installation Figure3-19 Wiring diagram of MR3375, MR33125 Input wires, battery negative wires, battery positive wires, neutral wire 1, neutral wire 2, neutral wire 4 neutral wire 5, ground wire 1 of MR3375、MR33125 (Top wiring) from the left side of the UPS;...
  • Page 55 MR33 Series (75K-600K) Modular UPS 3 Installation User Manual Figure3-20 Remove the sealing plate schematic diagram Step 2 Connect the input, output and battery wires according to Figure3-21, and fasten the bolts. Figure3-21 Inlet and outlet schematic diagram All rights reserved ©Kehua Hengsheng Co., Ltd.
  • Page 56 MR33 Series (75K-600K) Modular UPS User Manual 3 Installation Figure3-22 Wiring diagram It is suggested to equip DC breaker for battery DC input, specific wire connection is as shown in Figure3-23. Figure3-23 Battery wire connection diagram Step 3 After finishing the wire connection, install the top cover, and then the wiring is completed. The wiring diagram is as shown in Figure3-24.

  • Page 57: Mr33400, Mr33500, Mr33600

    MR33 Series (75K-600K) Modular UPS 3 Installation User Manual Figure3-24 Wiring diagram of MR33200, MR33300 (top wiring) ----End 3.5.3 MR33400, MR33500, MR33600 Step 1 Open the front door of distribution cabinet, place the input switch (POWER), output switch (OUTPUT), maintenance switch (MAINTENANCE), bypass switch (BYPASS) to OFF, as shown in Figure3-25.
  • Page 58 MR33 Series (75K-600K) Modular UPS User Manual 3 Installation Figure3-26 Dismantle the wiring cover plate of distribution cabinet Step 3 Connect the input, output and battery wires according to Figure3-27 in proper order, and then fasten the bolts. Figure3-27 Wiring terminal of distribution cabinet...
  • Page 59 MR33 Series (75K-600K) Modular UPS 3 Installation User Manual  If the wiring is from upside, it needs to make the cable go through the top styrofoam, and then connect the cables.  If the wiring is form downside, it needs to knock down the bottom wiring hole, and then connect the cables.
  • Page 60 MR33 Series (75K-600K) Modular UPS User Manual 3 Installation Figure3-29 Wiring diagram of distribution cabinet (top wiring) Figure3-30 Wiring diagram of distribution cabinet (bottom wiring) All rights reserved ©Kehua Hengsheng Co., Ltd.

  • Page 61: Parallel System Connection

    MR33 Series (75K-600K) Modular UPS 3 Installation User Manual Step 5 After finish the installation of cover plate, fill the empty part with insulation fireproofing mud. ----End After finish the assembling, perform the test and then the UPS can be put in use.
  • Page 62 MR33 Series (75K-600K) Modular UPS User Manual 3 Installation Parallel system connection of MR3375, MR33125, MR33200, MR33300 (top wiring) Figure3-33 Parallel system connection diagram of MR3375, MR33125, MR33200, MR33300 (top wiring) The wire color above is just used to distinguish the different ports, the actual wire color may not be the same as shown in the figure’s.
  • Page 63 MR33 Series (75K-600K) Modular UPS 3 Installation User Manual The wire color above is just used to distinguish the different ports, the actual wire color may not be the same as shown in the figure’s. Parallel system connection of MR33400, MR33500, MR33600 Figure3-35 Parallel system connection diagram of MR33400、MR33500、MR33600 (top wiring)

  • Page 64: System Check And Test

    MR33 Series (75K-600K) Modular UPS User Manual 3 Installation The parallel system connection of MR33400, MR33500, MR33600 is the same, in this section, we take MR33400 as an example to illustrate. 3.7 System Check and Test 3.7.1 Check Electrical Connection After finishing the electrical connection, check the following items.

  • Page 65: Connect Load

    MR33 Series (75K-600K) Modular UPS 3 Installation User Manual 3.7.3 Connect Load After the UPS starting and working stably, turn on the load. Start big-power devices before small-power ones. Some devices has large starting current which may cause overload protection (or bypass operation), it is better to start these equipment before others.

  • Page 66: Touch Screen Operation And Setting

    MR33 Series (75K-600K) Modular UPS User Manual 4 Touch Screen Operation and Setting 4 Touch Screen Operation and Setting This chapter mainly introduces the work parameters and work status and system setting of the UPS. 4.1 Menu Structure Mains input...

  • Page 67: Main Page

    MR33 Series (75K-600K) Modular UPS 4 Touch Screen Operation and Setting User Manual The value in the figures of this chapter is just for illustration, for real page please see the actual achieved product. 4.2 Main Page After powering on, it will enter system monitor main page, as shown in Figure4-2.

  • Page 68: System Work Status Display

    MR33 Series (75K-600K) Modular UPS User Manual 4 Touch Screen Operation and Setting : Information record. : System parameter setting. : Login. : Buzzer control. : Alarm. : ON/OFF. The work status and energy flow on the main page shows the system running status and module running condition directly.
  • Page 69 MR33 Series (75K-600K) Modular UPS 4 Touch Screen Operation and Setting User Manual Figure4-4 Fault protection, with no output Figure4-5 Shutdown All rights reserved ©Kehua Hengsheng Co., Ltd.
  • Page 70 MR33 Series (75K-600K) Modular UPS User Manual 4 Touch Screen Operation and Setting Figure4-6 Exit parallel system Figure4-7 Bypass output All rights reserved ©Kehua Hengsheng Co., Ltd.
  • Page 71 MR33 Series (75K-600K) Modular UPS 4 Touch Screen Operation and Setting User Manual Figure4-8 Battery INV. output Figure4-9 Mains INV. output All rights reserved ©Kehua Hengsheng Co., Ltd.
  • Page 72 MR33 Series (75K-600K) Modular UPS User Manual 4 Touch Screen Operation and Setting Figure4-10 Grid-connected aging running Figure4-11 ECO bypass output All rights reserved ©Kehua Hengsheng Co., Ltd.
  • Page 73 MR33 Series (75K-600K) Modular UPS 4 Touch Screen Operation and Setting User Manual Figure4-12 Frequency conversion INV. output Figure4-13 Maintenance bypass output All rights reserved ©Kehua Hengsheng Co., Ltd.

  • Page 74: Buzzer Control Function

    MR33 Series (75K-600K) Modular UPS User Manual 4 Touch Screen Operation and Setting Figure4-14 Aging bypass output When module or system abnormal, the main page will show “fault alarm” indicator, click the “fault alarm”, it will show the current fault information, as shown in Figure4-15.

  • Page 75: Monitor Function

    MR33 Series (75K-600K) Modular UPS 4 Touch Screen Operation and Setting User Manual 4.5 Monitor Function 4.5.1 Bypas Information In main page, click icon, it will enter system bypass information page, as shown in Figure4-16. In the page, it shows the bypass three-phase voltage, current, active power, apparent power and frequency.

  • Page 76: Battery Information

    MR33 Series (75K-600K) Modular UPS User Manual 4 Touch Screen Operation and Setting Figure4-17 Mains information 4.5.3 Battery Information In main page, click icon, it will enter battery information page. If the battery is lead-acid cell, it shows the positive and negative battery group voltage, charge/discharge current, remaining capacity, battery remaining time, battery temperature, battery status.

  • Page 77: Power Module Information

    MR33 Series (75K-600K) Modular UPS 4 Touch Screen Operation and Setting User Manual code, SOC, SOH and battery status. It shows the charging current or discharging current according to battery charge/discharge status, as shown in Figure4-19. Figure4-19 Battery information page 4.5.4 Power Module Information...

  • Page 78: Inverter Information

    MR33 Series (75K-600K) Modular UPS User Manual 4 Touch Screen Operation and Setting 4.5.5 Inverter Information In main page, click icon, it will enter inverter module information page, as shown in Figure4-21. Click “Select Module”, it can check the information of each power module.

  • Page 79: Setting Management

    MR33 Series (75K-600K) Modular UPS 4 Touch Screen Operation and Setting User Manual 4.6 Setting Management In main page, click icon, it will enter user login page, as shown in Figure4-23. Figure4-23 Use login page After entering right password the icon will show as .

  • Page 80: System Manage

    MR33 Series (75K-600K) Modular UPS User Manual 4 Touch Screen Operation and Setting 4.6.1 System Manage In setting management interface, click System Manage icon, it will enter system manage page, as shown in Figure4-25. System manage includes system setting, bypass setting. Click enter box to change parameter.
  • Page 81 MR33 Series (75K-600K) Modular UPS 4 Touch Screen Operation and Setting User Manual Figure4-27 Setting failure Bypass setting Click Bypass Setting, it will turn to bypass setting page, as shown in Figure4-28. Click enter box, such as the max. time turn INV. to bypass synchronous (ms), it will show as Figure4-29. At the top of the enter box, it shows the setting range, once setting exceed the range, the setting will be invalid, after change the parameter, click Save button to save the setting.

  • Page 82: Battery Manage

    MR33 Series (75K-600K) Modular UPS User Manual 4 Touch Screen Operation and Setting Figure4-29 Parameter setting 4.6.2 Battery Manage In setting management page, click Battery Manage icon, it will enter battery manage page, as shown in Figure4-30, Figure4-31.The page includes battery setting, charging setting, battery test. Click enter box to change the parameter.
  • Page 83 MR33 Series (75K-600K) Modular UPS 4 Touch Screen Operation and Setting User Manual Figure4-31 Battery setting 2 Charging setting Click Charging Setting, it will turn to charging setting page, as shown in Figure4-32, Figure4-33. Click enter box to change the parameter. Click Save button to save the setting. The mark of setting success and setting failure is the same as that of system setting.

  • Page 84: Mode Configuration

    MR33 Series (75K-600K) Modular UPS User Manual 4 Touch Screen Operation and Setting Figure4-33 Charging setting 2 Battery test Click Battery Test to enter battery test page, as shown in Figure4-34. Figure4-34 Battery test 4.6.3 Mode Configuration In setting management page, click Mode config. icon, it will enter mode configuration page. The page includes parallel configuration, ECO configuration, smart sleep setting and other mode setting.
  • Page 85 MR33 Series (75K-600K) Modular UPS 4 Touch Screen Operation and Setting User Manual Figure4-35 Parallel configuration page Click ECO Setting, it will turn to ECO configuration page, as shown in Figure4-36. Click enter box to change the setting. Click Save button to save the setting. The mark of setting success and setting failure is the same as that of system setting.

  • Page 86: Function Configuration

    MR33 Series (75K-600K) Modular UPS User Manual 4 Touch Screen Operation and Setting Figure4-37 Smart sleep setting page Click Other Mode Setting, it will turn to other mode setting page, as shown in Figure4-38. Click enter box to change the setting. Click Save button to save the setting. The mark of setting success and setting failure is the same as that of system setting.
  • Page 87 MR33 Series (75K-600K) Modular UPS 4 Touch Screen Operation and Setting User Manual point configuration. Click Save button to save the setting. The mark of setting success and setting failure is the same as that of system setting. Generator configuration In funciton configuration page, click Generator, it will enter the generator configuration page, as shown in Figure4-39.
  • Page 88 MR33 Series (75K-600K) Modular UPS User Manual 4 Touch Screen Operation and Setting Figure4-40 Dedusting configuration Start delay configuration Click StartDelay, it will enter the delay starting configuration page, as shown in Figure4-41. Click Save button to save the setting. The mark of setting success and setting failure is the same as that of system setting.

  • Page 89: Communication Setting

    MR33 Series (75K-600K) Modular UPS 4 Touch Screen Operation and Setting User Manual Dry point configuration Click Dry point, it will enter the dry contact configuration page, as shown in Figure4-42. Click Save button to save the setting. The mark of setting success and setting failure is the same as that of system setting.

  • Page 90: Debug Set

    MR33 Series (75K-600K) Modular UPS User Manual 4 Touch Screen Operation and Setting Figure4-43 Communication setting 4.6.6 Debug Set In setting management page, click Debug Set icon, it will enter debug set page, as shown in Figure4-44. Click Save button to save the setting. The mark of setting success and setting failure is the same as that of system setting.

  • Page 91: Record Manage

    MR33 Series (75K-600K) Modular UPS 4 Touch Screen Operation and Setting User Manual 4.6.7 Record Manage In setting management page, click Record Manage icon, it will enter record manage page, as shown in Figure4-45, Figure4-46. Click Save button to save the setting. The mark of setting success and setting failure is the same as that of system setting.

  • Page 92: Password Set

    MR33 Series (75K-600K) Modular UPS User Manual 4 Touch Screen Operation and Setting Figure4-47 HMI setting When setting system time, ensure that the setting value is the same as the real time, which is to keep the veracity of system event log and master the system status of some time and maintain conveniently.

  • Page 93: Information Query

    MR33 Series (75K-600K) Modular UPS 4 Touch Screen Operation and Setting User Manual Figure4-48 Password setting 4.7 Information Query In main page, click icon, it will enter information query page, as shown in Figure4-49. Figure4-49 Information query All rights reserved ©Kehua Hengsheng Co., Ltd.

  • Page 94: Event Log

    MR33 Series (75K-600K) Modular UPS User Manual 4 Touch Screen Operation and Setting It can record 9000 pieces information at most. When the record exceeds 9000 piece, the earliest information will be covered by new one. All records are ranked in inverted order of time.

  • Page 95: Device Information

    MR33 Series (75K-600K) Modular UPS 4 Touch Screen Operation and Setting User Manual Figure4-51 User log 4.7.3 Device Information In information query page, click Device Info icon, it will enter device information page. This page shows the S/N, product name, model, status, version, as shown in Figure4-52, Figure4-53, Figure4-54.
  • Page 96 MR33 Series (75K-600K) Modular UPS User Manual 4 Touch Screen Operation and Setting Figure4-53 Product information 2 Figure4-54 Product information 3 When the probation function is enabled, the device status shows as Lock, as shown in Figure4-55. At this time, click Lock button, it will enter the probation unlock page. After unlocking, the Lock button disappear.

  • Page 97: On/Off

    MR33 Series (75K-600K) Modular UPS 4 Touch Screen Operation and Setting User Manual Figure4-55 Probation function is enabled 4.8 ON/OFF In main page, click icon, it will enter ON/OFF page, when the system is OFF, click the icon to enter the confirm page, as shown in Figure4-56, click OK button to perform the start operation.
  • Page 98 MR33 Series (75K-600K) Modular UPS User Manual 4 Touch Screen Operation and Setting Figure4-57 Confirm to power off All rights reserved ©Kehua Hengsheng Co., Ltd.

  • Page 99: Use And Operation

    MR33 Series (75K-600K) Modular UPS 5 Use and Operation User Manual 5 Use and Operation This chapter mainly introduces the operation procedure and method, including using announcements, operation procedure, UPS start and parallel system start, etc. 5.1 Use Announcements  Before starting the UPS, check whether the load is proper. The load must not exceed the rated output power of the UPS, which is to avoid overload protection.

  • Page 100: Ups Start And Shutdown

    MR33 Series (75K-600K) Modular UPS User Manual 5 Use and Operation 5.3 UPS Start and Shutdown 5.3.1 Check before Startup Before startup, check according to following steps. Only when the check is OK, then the UPS can be started. Step 1 Ensure that the POWER switch, BYPASS switch, OUTPUT switch, MAINTENANCE switch are all OFF.
  • Page 101 MR33 Series (75K-600K) Modular UPS 5 Use and Operation User Manual  Start the inverter by panel ON combination button 1 When the green indicator of all power module slow flicker, long press the panel “ON” combination button for 3s, the system inverters to output. Check the system running status in the touch screen, and ensure that the system turns to inverter power supply mode.

  • Page 102: Ups Shutdown

    MR33 Series (75K-600K) Modular UPS User Manual 5 Use and Operation 5.3.3 UPS Shutdown If the system bypass normal, after the UPS shutdown, system will turn to bypass power supply mode; if system bypass abnormal, after the UPS shutdown, system will be with no output. Before shutting down, please ensure that the load is closed.

  • Page 103: Switch To Bypass Mode Manually

    MR33 Series (75K-600K) Modular UPS 5 Use and Operation User Manual Step 4 After the touch screen and all LED indicators are off, the UPS is completely shut down. ----End 5.3.4 Switch to Bypass Mode Manually Before shutting down the inverter, please ensure that the bypass is normal. If bypass abnormal, after shutting down the inverter manually, the system will be with no output and the power supply for load will be breaked off.

  • Page 104: Switch To Inverter Power Supply From Maintenance Bypass

    MR33 Series (75K-600K) Modular UPS User Manual 5 Use and Operation Step 4 Disconnect OUTPUT switch, after the touch screen, LED indicators are all off, the maintenance can be done. During maintenance, it is strictly forbidden to close the OUTPUT switch.

  • Page 105: Emergency Power Off (Epo)

    MR33 Series (75K-600K) Modular UPS 5 Use and Operation User Manual 5.3.7 Emergency Power Off (EPO) Do not perform the EPO operation unless emergency. Press the EPO button on the panel or external EPO button of system, the UPS will turn to emergency power off status.
  • Page 106 MR33 Series (75K-600K) Modular UPS User Manual 5 Use and Operation 1. Before start the parallel system, please perform the operation of 5.3 UPS Start and Shutdown for each UPS. 2. Before test and power on the parallel system, please ensure that the wire connection of input and output cables and phase sequence is right and the parallel wire is well connected and stay in disconnection status.
  • Page 107 MR33 Series (75K-600K) Modular UPS 5 Use and Operation User Manual output distribution cabinet or external output distribution breaker, ensure that the inverter output voltage is normal (the three-phase output voltage = output voltage setting ±2V), and ensure that the inverter frequency is normal (the three-phase output frequency = output frequency setting ±0.1Hz).

  • Page 108: Shutdown Parallel System

    MR33 Series (75K-600K) Modular UPS User Manual 5 Use and Operation Ensure that each UPS with no abnormal alarm, shut down the inverter of all UPS, the system turns to bypass power supply. Step 14 Close the total output breaker of load.

  • Page 109: Emergency Power Off (Epo)

    MR33 Series (75K-600K) Modular UPS 5 Use and Operation User Manual 5.4.3 Emergency Power Off (EPO) Single UPS running Press the EPO button of the UPS or the EPO button of total system, the UPS will shut down and close all output.

  • Page 110: Maintenance And Troubleshooting

    MR33 Series (75K-600K) Modular UPS User Manual 6 Maintenance and Troubleshooting 6 Maintenance and Troubleshooting This chapter mainly introduces the UPS maintenance guide, battery daily maintenance, battery replacement announcement and troubleshooting, etc. 6.1 Maintenance Guide Proper maintenance is the key to make the device operate in best status and with a longer service life.

  • Page 111: Battery Maintenance

    MR33 Series (75K-600K) Modular UPS 6 Maintenance and Troubleshooting User Manual  Check the UPS status periodically and ensure that any fault can be found in time. 6.2 Battery Maintenance  Battery charge requirements − When first use the battery, please start the UPS and charge the battery for 24h. during charging, the UPS still can be used, but if power outage occurs at the same time, the battery discharge time may less than the standard vale this time.

  • Page 112: Troubleshooting

    MR33 Series (75K-600K) Modular UPS User Manual 6 Maintenance and Troubleshooting  A new battery should be with the same capacity, model, and manufacturer as the replaced one. The battery with different capacity, different type and different manufacturer battery is strictly forbidden to use together.
  • Page 113 MR33 Series (75K-600K) Modular UPS 6 Maintenance and Troubleshooting User Manual Abnormal phenomena Possible reason 1. The UPS is serious overload or the output circuit is short-circuit. It is necessary to reduce load to proper capacity or find the reason of short-circuit. Common reason is output...

  • Page 114: Emergency Dispose For System Fault

    MR33 Series (75K-600K) Modular UPS User Manual 6 Maintenance and Troubleshooting Abnormal phenomena Possible reason Buzzer long beeps, the UPS turns to bypass See the fault information on touch screen. supply power. There mains, The mains voltage or frequency exceed the allowable range of...

  • Page 115: Package, Transportation And Storage

    MR33 Series (75K-600K) Modular UPS 7 Package, Transportation and Storage User Manual 7 Package, Transportation and Storage This chapter mainly introduces the package, transportation and storage of the UPS. 7.1 Package During packing, please pay attention to the place direction requirements. At the side of the package, there is afraid of wet, handle with care, upward, stack layer limit, etc.

  • Page 116: A Technical Specifications

    MR33 Series (75K-600K) Modular UPS User Manual A Technical Specifications Technical Specifications Model MR33 MR33 MR33 MR33 MR33 MR33 MR33 Index 3φ 4W+PE Input mode Rated input voltage 220/230/240 (phase voltage) (VAC) Vin=176Vac~280Vac, it does not need to decrease rated power to use...
  • Page 117 MR33 Series (75K-600K) Modular UPS A Technical Specifications User Manual Model MR33 MR33 MR33 MR33 MR33 MR33 MR33 Index 3φ 4W+PE Output mode Output wave-form Sine-wave L－N: 220/230/240 Voltage (Vac) L—L: 380/400/415 When mains normal, it tracks the bypass input frequency;...
  • Page 118 MR33 Series (75K-600K) Modular UPS User Manual A Technical Specifications Model MR33 MR33 MR33 MR33 MR33 MR33 MR33 Index DC startup function Equipped Three-phase input voltage, input frequency, three-phase output voltage, Touch screen display load, battery voltage, battery charge/discharge current, output current of each module and inner temperature, parameter setting, history record, etc.

  • Page 119: B Physics Characters

    MR33 Series (75K-600K) Modular UPS B Physics Characters User Manual Physics Characters Physics Characters Model MR3375 MR33125 MR33200 MR33300 Item Supports wiring Supports wiring Supports wiring Optional wiring from upside and from upside from upside and from upside downside (The...
  • Page 120 MR33 Series (75K-600K) Modular UPS User Manual B Physics Characters Model MR3375 MR33125 MR33200 MR33300 Item temperature (℃) Relative 0%～95％ RH (with no condensation) humidity Physics Characters Model MR33400 MR33500 MR33600 Item Supports wiring from Supports wiring from Supports wiring...

  • Page 121: C Acronyms And Abbreviations

    MR33 Series (75K-600K) Modular UPS C Acronyms and Abbreviations User Manual Acronyms and Abbreviations Alternating Current Direct Current Digital Signal Processor Energy Control Operation Emergency Power Off Light-emitting Diode Protective Earthing All rights reserved ©Kehua Hengsheng Co., Ltd.
  • Page 122 MR33 Series (75K-600K) Modular UPS User Manual C Acronyms and Abbreviations RS232 Recommend Standard 232 Recommend Standard 485 RS485 SNMP Simple Network Management Protocol THDv Total Harmonic Distortion of output voltage Uninterruptible Power System All rights reserved ©Kehua Hengsheng Co., Ltd.
  • Page 123 4402-02833 004...

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