Kohler MINIpowerPLUS User Manual
Kohler MINIpowerPLUS User Manual

Kohler MINIpowerPLUS User Manual

Modular single-phase uninterruptible power supply (1.25 kva to 10 kva)
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KOHLER MINIpowerPLUS
Modular single-phase uninterruptible power supply
(1.25 kVA to 10 kVA)
User Manual

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Summary of Contents for Kohler MINIpowerPLUS

  • Page 1 KOHLER MINIpowerPLUS Modular single-phase uninterruptible power supply (1.25 kVA to 10 kVA) User Manual...
  • Page 2: Useful Contacts

    All product, product specifications and data are subject to change without notice to improve reliability, function, design or otherwise. Kohler Uninterruptible Power has taken every precaution to produce an accurate, complete and easy to understand specification document and will assume no responsibility nor liability for direct, indirect or accidental personal or material damage due to any misinterpretation of, or accidental errors, in this manual.
  • Page 3: Table Of Contents

    Document Control Useful Contacts 1: General Description 1.1 Reliability and Quality Standards 1.2 MINIpowerPLUS Model Range 1.3 Operating Principles 1.4 Warranty 1.5 Extended Warranty 1.6 Additional Service/Maintenance Support 2: Safety 2.1 Description of symbols used in this manual 2.2 User precautions 3: Installation 3.1 Introduction...
  • Page 4 8.2 Environmental 8.3 Electrical Input 8.4 Output Waveform 8.5 Output When Running on Mains Power 8.6 Output When Running on Battery Power 8.7 Battery Operation (MINIpowerPLUS 5000) 8.8 Battery Operation (MINIpowerPLUS 10000) 8.9 Bypass 8.10 Reference Standards © 2023 Kohler Uninterruptible Power...
  • Page 5: 1: General Description

    Reliability and Quality Standards Congratulations on your purchase of the MINIpowerPLUS UPS. The MINIpowerPLUS UPS incorporates the latest technological advances in power engineering to offer a highly reliable, upgradeable UPS system with excellent electrical performance and low running costs. Kohler Uninterruptible Power are leading specialists in the provision, installation and maintenance of UPS systems; and this compact and powerful UPS is just one example of our wide range of state-of-the-art power protection devices able to provide your critical equipment with a reliable power supply for many years.
  • Page 6: Operating Principles

    1: General Description MINIpowerPLUS 5000 (Rack and Tower) cabinets Fully populated with 4 Power Modules to offer a 5.0kVA system. Batteries are housed within the UPS cabinets. MINIpowerPLUS 10000 Fully populated with 8 Power Modules to offer a 10kVA system.
  • Page 7 1: General Description Figure 1.4 MINIpowerPLUS block diagram A rapid, synchronised by-pass circuit is used to assist during overloads that exceed the inverter’s capacity – for example when certain peripherals that require a high start current are initially switched on.
  • Page 8 A dedicated bypass configuration menu provides a means of customising the by-pass circuit operation to meet specific application demands. This feature provides many options such as: ‘automatic’, ‘disabled’, ‘by-pass in load waiting’ mode. © 2023 Kohler Uninterruptible Power 17/10/23...
  • Page 9: Warranty

    If the UPS fails to conform to the above within the warranty period then Kohler Uninterruptible Power will, at its sole option, repair or replace the UPS. All repaired or replaced parts will remain the property of Kohler Uninterruptible Power...
  • Page 10: 2: Safety

    UPS yourself. You run risk of exposure to dangerous voltages by opening or removing the UPS covers! Kohler Uninterruptible Power will assume no responsibility or liability due to incorrect operation or manipulation of the UPS.
  • Page 11: 3: Installation

    ON by the user. However, if it is delivered without the batteries fitted, the cabinet(s) can be installed by the user but the batteries must be fitted and commissioned by a Kohler Uninterruptible Power approved engineer.
  • Page 12: Site Transportation

    As a guide, the batteries should not be stored for longer than the periods shown below without being recharged: • 6 months at 20°C • 3 months at 30°C • 2 months at 35°C © 2023 Kohler Uninterruptible Power 17/10/23...
  • Page 13: Planning The Installation

    3.2.1 MINIpowerPLUS Tower versions Cabinet positioning and accessibility The MINIpowerPLUS 5000/10000 UPS Tower cabinet is compact and mounted on wheeled castors so that it can be easily moved to its intended operating location. As shown in Figure 3.1 the UPS and battery cabinets require a minimum of 200 mm clearance at the rear and either side to permit adequate cooling airflow.
  • Page 14: Minipowerplus Rack-Mounted Versions

    MINIpowerPLUS Rack-mounted versions Rack positioning and accessibility The MINIpowerPLUS Rack-mounted UPS cabinet is designed to fit into a standard 19 inch rack and is 6U high. The cabinet is fitted through the front of the rack, supported on suitable rails and secured in position by means of two screws on each side of the front of the assembly.
  • Page 15: Ups Installation Procedure

    Connect the UPS cabinet to the battery cabinet In a MINIpowerPLUS 10000 system the UPS batteries are housed in a separate battery cabinet that is connected to the UPS cabinet by three cables. In a MINIpowerPLUS 5000 system a separate battery cabinet is an optional facility that is sometimes added to provide an extended autonomy time over and above that available from the standard internal batteries.
  • Page 16 UPS Cabinet Braided Earth Strap Battery Cabinet Figure 3.4 MINIpowerPLUS 10000 battery connections Connect the flexible braided earth strap (provided) between the chassis earth studs of both cabinets – the studs are located adjacent to the battery connectors. Connect all three battery cables between the battery connectors on both cabinets. The cable plugs are keyed to prevent incorrect polarity when making these connections.
  • Page 17: Connecting The Ups Communication Options

    AUTONOMY RESERVE (Open collector active-low, max 50mA) GND (common) UPS RUN ON BATTERY (Open collector active-low, max 50mA) OVERLOAD (Open collector active-low, max 50mA) These outputs can be used individually or connected to an optional Remote Signalling Panel (RSP). © 2023 Kohler Uninterruptible Power 17/10/23...
  • Page 18: Connect The Ups Input/Output Power Cables

    MINIpowerPLUS 5000 power cables A cable with a maximum capacity of 16A is supplied with the MINIpowerPLUS 5000. For applications where the anticipated UPS input current exceeds 13A (e.g. 5000 VA with Vin=184V) we recommend that the UPS input power cable is connected directly to the electrical distribution control panel.
  • Page 19 3: Installation MINIpowerPLUS 5000 power connector wiring CAUTION: Ensure the UPS input mains supply is isolated before proceeding. Never remove the 230V power plug whilst the UPS is in operation as this would disconnect the earth protection of both the UPS and of the connected loads.
  • Page 20 3: Installation MINIpowerPLUS 10000 power connector wiring CAUTION: Ensure the UPS input mains supply is isolated before proceeding. Never remove the 230V power plug whilst the UPS is in operation as this would disconnect the earth protection of both the UPS and of the connected loads.
  • Page 21: Powering On The Ups

    As current dispersion towards earth of all the loads merges in the UPS protection wire (earth wire), for safety reasons, it is essential to check that the sum of these currents does not exceed 2.7 mA, according to BS EN 62040-1-1:2003. © 2023 Kohler Uninterruptible Power 17/10/23...
  • Page 22: 4: Operation

    The UPS Control Panel LCD display will indicate the UPS input and output parameters and appear similar to the example shown in Figure 4.2 except that there will be no output power shown as the load is currently being powered via the maintenance bypass switch. © 2023 Kohler Uninterruptible Power 17/10/23...
  • Page 23 To power down the load when on the maintenance bypass line If the load is supplied through the maintenance bypass line it can be powered off and on by means of the maintenance bypass switch. © 2023 Kohler Uninterruptible Power 17/10/23...
  • Page 24: Control Panel

    Batt. xx,x Indicates the battery state of charge in a bar graph format together with a numerical indication of the available autonomy time (in minutes) Figure 4.2 LCD Display panel during normal operation © 2023 Kohler Uninterruptible Power 17/10/23...
  • Page 25: Operator Keypad

    AUTONOMY! • Incorrect battery connection • Incorrect Neutral Flashing Red OUT OF The load consumption exceeds the set redundancy. Short with pause REDUNDANCY! Power module redundancy is not guaranteed in case of failure. © 2023 Kohler Uninterruptible Power 17/10/23...
  • Page 26: Ups Customisation And Event Monitoring Menus

    Details of the EVENTS menu are given in paragraph 4.4.4. Details of the SCHEDULING menu are given in paragraph . Details of the TOOLS menu are given in paragraph 4.4.6. Figure 4.4 Main Menu © 2023 Kohler Uninterruptible Power 17/10/23...
  • Page 27: Ups Status Menus

    The UPS Status menus are provide the user with information concerning the UPS set-up configuration and operational data – both live and historical. Most of the sub-menus are self-explanatory, as shown below. UPS Info sub-menu Output sub-menu Input sub-menu Batteries sub-menu History Data sub-menu © 2023 Kohler Uninterruptible Power 17/10/23...
  • Page 28: Ups Setup Menu

    Green status led flashes and the ‘automatic bypass’ facility is inhibited which means that the load is not fully protected in the event of a UPS fault or overload condition. © 2023 Kohler Uninterruptible Power 17/10/23...
  • Page 29 Enable: If enabled, the UPS uses the neutral sensor to verify that the voltage between neutral and earth is within safe limits and switches the UPS to battery mode when this is not the case. Ignore While Run: If enabled, the UPS only checks the neutral sensor during startup. © 2023 Kohler Uninterruptible Power 17/10/23...
  • Page 30 Enter the number of battery chargers fitted to the external battery cabinets connected to the UPS system. • KB Kits Enter the number of battery strings connected to the system. Note that each string comprises three batteries. © 2023 Kohler Uninterruptible Power 17/10/23...
  • Page 31: Events Menu

    (paragraph 4.4.3). You will need to know the existing password in order to gain access to the password change menu. To change the password, allocate each new digit in turn using the UP/DOWN/ENTER keys. (Note that validation requires that all 8 digits are assigned a value.) 4.4.4 Events Menu © 2023 Kohler Uninterruptible Power 17/10/23...
  • Page 32: Scheduling Menu

    Min Autonomy: This sets the percentage of battery discharge (autonomy) below which the UPS will not be permitted to automatically restart. Shutdown Planning sub-menu Delay: Sets the duration (seconds) of the signal warning that the UPS is about to be shut down. © 2023 Kohler Uninterruptible Power 17/10/23...
  • Page 33: Tools Menu

    UPS and its log. A suitable interface programme for Windows® computers, which requires an RS232 interface cable to connect the UPS to a serial port on your PC, is available from Kohler Uninterruptible Power For details, please contact the Technical Department at Kohler Uninterruptible Power ©...
  • Page 34: 5: Maintenance

    • Operation of all installed options Preventative maintenance inspections form an integral part of all Extended Warranty Agreements (maintenance contracts) offered by Kohler Uninterruptible Power For further details on Extended Warranty Agreements see Section 2 of this manual. Battery Testing The battery test procedure can be activated from the UPS operator panel and can performed independently of the UPS operating mode (Off-line or On-line) and whether or not the load is connected.
  • Page 35: 6: Troubleshooting

    (e.g. if the UPS is too close to a wall). • If the above step are satisfactory, there is likely to be a fault on one of the internal circuits. Contact your service centre. © 2023 Kohler Uninterruptible Power 17/10/23...
  • Page 36: 7: Options

    Both relays and the maintenance bypass switch are built in to the UPS power connector (which replaces the standard power connector). The switch contains a yellow lamp which illuminates when the switch is closed to indicate that the load is connected to the maintenance bypass, as shown below in Figure 7.2. © 2023 Kohler Uninterruptible Power 17/10/23...
  • Page 37: Installation

    MINIpowerPLUS 5000 MINIpowerPLUS 10000 Figure 7.2 Maintenance bypass switch location 7.1.2 Installation This procedure provided details of how to replace the standard UPS power connector with the optional maintenance bypass power connector. WARNING: The maintenance bypass switch option must be installed by qualified personnel.
  • Page 38: Functional Testing

    7: Options Live Live Neutral Neutral Mains input cable UPS output cable Figure 7.3 Maintenance bypass connector (MINIpowerPLUS 5000) Live Neutral Neutral Live UPS output cable Mains input cable Figure 7.4 Maintenance bypass connector (MINIpowerPLUS 10000) 7.1.3 Functional testing Connect the input cable to the mains power supply and connect a load to the UPS output (e.g. a lamp).
  • Page 39: Maintenance Bypass Specification

    • WAVEMON – can be used for monitoring and automatic shutdown • SNMP – can be used for monitoring only • PowerREPORTER – can be used to automatically email UPS monitored parameters and alarm events to Kohler Uninterruptible Power for appropriate response •...
  • Page 40 (typically a shutdown command) on a remote system. The MINIpowerPLUS can be integrated into a network by means of the server which is being powered by the UPS if it is already integrated into the network. In most cases the server is used as a sub-agent and you only need the PMC-Software without any SNMP Adapter.
  • Page 41: Snmp Adapter For Network Management/Remote Monitoring

    When this facility is used in conjunction with the MINIpowerPLUS, an external SNMP adapter is used which is connected to the RS232 connector on the UPS back panel. The SNMP adapter is then connected to the network by means of a standard RJ-45 terminated Ethernet connector.
  • Page 42: Powerreporter™ Management Software

    – Recording function including graphs with zooming capabilities for selected measured values – Display of event log file – Display of UPS Parameters – Web Server functionality, for data access from any Web Browser © 2023 Kohler Uninterruptible Power 17/10/23...
  • Page 43: Relay Interface Board

    EC3 General Alarm NO = Normally Open NC = Normally Closed EC4 Low Battery (Autonomy Reserve) When jumpers J1,J2,J3 are inserted the Alarm and Low Battery warnings are joined. Figure 7.8 Relay Interface Board © 2023 Kohler Uninterruptible Power 17/10/23...
  • Page 44: 8: Specifications

    Specifications Construction Features MINIpowerPLUS 5000 MINIpowerPLUS 10000 UPS Model Range 1250 2500 3750 5000 5000/2 6250/2 7500/2 8750/2 10000/2 Weight UPS Cabinet (Kg.) 23.5 24+50 26.5 31.5 Weight Battery Cabinet (Kg.) 57.5 72.5 Size (mm) (WxDxH) Tower: 270 x 475 x 570 270 x 475 x 570 x 2 cabinets 19"...
  • Page 45: Electrical Input

    8: Specifications Electrical Input MINIpowerPLUS 5000 MINIpowerPLUS 10000 UPS Model Range 1250 2500 3750 5000 5000/2 6250/2 7500/2 8750/2 10000/2 Nominal Input Voltage 230V Input Voltage Range 184V to 264V with nominal load 100V to 264V with 50% nominal load Frequency 50 or 60Hz ±...
  • Page 46: Output When Running On Battery Power

    WARNING: There is a danger of explosion should the batteries be replaced with the wrong type. Dispose of used batteries as per the instructions and precautions for their disposal on the battery label. Battery Operation (MINIpowerPLUS 5000) MINIpowerPLUS 5000 UPS Model Range...
  • Page 47: Bypass

    8: Specifications Bypass MINIpowerPLUS 5000 MINIpowerPLUS 5000 UPS Model Range 1250 2500 3750 5000 5000/2 6250/2 7500/2 8750/2 10000/2 Type Static and electromechanical Transfer time 8.10 Reference Standards MINIpowerPLUS 5000 MINIpowerPLUS 5000 UPS Model Range 1250 2500 3750 5000 5000/2...

This manual is also suitable for:

Minipowerplus 5000Minipowerplus 10000

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