Riello MST 30 Installation And Use Manual
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Riello MST 30 Installation And Use Manual

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  • Page 2 NTRODUCTION Thank you for choosing our product. Our company is specialised in designing, developing and manufacturing uninterruptible power supplies (UPS). The UPS described in this manual is a high quality product which has been carefully designed and built in order to guarantee the highest levels of performance.

  • Page 3: Table Of Contents

    ONTENTS OVERVIEW ULTI ENTRY FRONT VIEWS OF THE IEWS OF THE CONNECTIONS EAR VIEW OF THE IEW OF THE CONTROL PANEL EPARATE BYPASS INPUT OPTIONAL NTERNAL RANSFORMER INSTALLATION TORAGE OF THE REPARATION FOR INSTALLATION PRELIMINARY INFORMATION LECTROMAGNETIC COMPATIBILITY NSTALLATION ENVIRONMENT NTERNAL ATTERIES EMOVING THE...
  • Page 4 ESCRIPTION RELIMINARY OPERATIONS AND FIRST START AINS START ATTERY START WITCHING OFF THE RAPHIC DISPLAY ENU DISPLAY PERATING MODE (SWMB) AINTENANCE BYPASS EDUNDANT AUXILIARY POWER SUPPLY FOR AUTOMATIC BYPASS “ ” “ ” UXILIARY POWER SHARE POWER OUT SOCKETS OPTIONALS OWER WALK 200/208V OWER REDUCTION FOR...

  • Page 5: Overview

    OVERVIEW ULTI ENTRY The UPSs in the MST series have been designed using state-of-the-art technology, in order to ensure the best performance for the user. The use of the new control boards based on microprocessor architecture (DSP + µP inside), together with the adoption of specific circuit solutions that use last-generation components, have allowed to reach high performances such as: ZERO IMPACT SOURCE: ensures low input distortion, a power factor close to 1, and maximum generator set compatibility.

  • Page 6: Front Views Of The Ups

    FRONT VIEWS OF THE Control panel with graphic display Wheels for moving the UPS Front door with lock Brake rod Ventilation grid...
  • Page 7 From the left: Slot for auxiliary communication board Input isolator / Separate bypass isolator (optional) / Manual bypass isolator / Output isolator From the left: Battery start button (COLD START) / R.E.P.O. (Remote Emergency Power Off) connector / Contact Terminal cover holder for AS400 / USB communication port / RS232 communication port Battery fuse holder isolator...

  • Page 8: Views Of The Ups Connections

    IEWS OF THE CONNECTIONS Power connections: EXTERNAL BATTERY, INPUT, SEPARATE BYPASS (optional), OUTPUT Connection for external synchronization signal Connection for remote maintenance bypass command Connection for external Battery Box temperature probe...

  • Page 9: Rear View Of The Ups

    EAR VIEW OF THE Parallel board slot (optional) Power board fans Powershare socket / Power out socket (optional) Battery charger fan Power relay board slot (optional)

  • Page 10: View Of The Control Panel

    IEW OF THE CONTROL PANEL Mains power LED Low battery LED Battery power LED ECO mode LED Load on bypass LED Graphic display Stand-by / alarm LED F1, F2, F3, F4 FUNCTION KEYS. The function of each key is indicated at the bottom of the display and it varies according to the menu.

  • Page 11: Separate Bypass Input ( Optional )

    EPARATE BYPASS INPUT OPTIONAL THE OPTIONAL VERSION OF THE UPS SERIES HAS SEPARATE BYPASS AND INPUT LINES. The UPS series with Separate Bypass allows a separate connection between the input and the bypass lines. The UPS output is synchronised with the bypass line, in order to avoid incorrect voltage changeovers during the alternate phases, in case an automatic bypass or a maintenance isolator closure occurs.

  • Page 12: Installation

    The storage area must respect the following characteristics: Temperature: 0° ÷40° C (32° ÷104° F) Relative humidity degree: 95% max REPARATION FOR INSTALLATION PRELIMINARY INFORMATION UPS Models MST 30 MST 40 Nominal power 30kVA 40kVA Operating temperature 0 ÷ 40 ° C Max. relative humidity during operation...

  • Page 13: Electromagnetic Compatibility

    LECTROMAGNETIC COMPATIBILITY This UPS product conforms to the current electromagnetic compatibility (EMC) regulations (C2 class). It may cause radio interference in the home environment. The user may have to adopt supplementary measures. This product is for professional use in industrial and commercial environments. Connections to USB and RS232 connectors must be made with the cables provided, or at least with shielded cables less than 3 metres long.

  • Page 14: Internal Batteries

    NTERNAL ATTERIES CAUTION: If the UPS has INTERNAL BATTERIES, follow all the PRECAUTIONS AND SAFETY RULES listed below. The UPS has HAZARDOUS electrical voltages inside it, even when the input and/or battery switches are off. The • inside of the UPS is protected by safety panels which should not be removed by untrained personnel. All installation and maintenance or operations involving access inside the UPS require the use of tools and may ONLY be performed by trained personnel.

  • Page 15: Removing The Ups From The Pallet

    EMOVING THE FROM THE PALLET CAUTION! TO AVOID HARMING PEOPLE AND/OR DAMAGING THE EQUIPMENT, FOLLOW CAREFULLY THE FOLLOWING INSTRUCTIONS. SOME OF THESE INSTRUCTIONS NEED TO BE CARRIED OUT BY TWO PEOPLE. Cut the straps and remove the cardboard box by Remove the 2 brackets securing the UPS to the pallet by sliding it upwards.

  • Page 16: Preliminary Content Check

    RELIMINARY CONTENT CHECK After opening the package, first check the content: metal chutes, warranty card, user manual, safety manual, inspection certificate, serial connection cable, 4 x battery fuses (to be inserted in the “SWBATT” fuse holders), door key. OSITIONING THE When positioning the equipment, the following points should be taken into account: The wheels are intended for accurate positioning, therefore for small movements only.

  • Page 17: Electrical Connections

    LECTRICAL CONNECTIONS WARNING: a 4-wire three-phase distribution system is required. The UPS must be connected to a power supply line made up of 3 phases + neutral + PE (protective earth) of TT, TN or IT type. Therefore, the phase rotation must be respected. Optional TRANSFORMER BOXES to convert the distribution systems from 3 wires to 4 wires are available.
  • Page 18 UPS with no modification of the neutral regime and with separate bypass input UPS with input galvanic isolation and with separate bypass input UPS with output galvanic isolation and separate bypass input...
  • Page 19 Separate bypass on separate lines: When the separate bypass option is present, protective devices should be placed on both the main power supply line and the bypass line. Note: The neutral of the input line and that of the bypass are commoned inside the equipment, therefore they must refer to the same potential.

  • Page 20: Ups Internal Protections

    INTERNAL PROTECTIONS The table below shows the sizes of the UPS isolators and the battery fuses (SWBATT) which are all accessible from the front of the UPS. Moreover, the table shows the maximum input and the nominal output currents. Fuses must be replaced with ones of the same type and of the same rating, as shown in the table. Isolators and currents Non-automatic switches Battery isolator...

  • Page 21: External Protection Devices

    XTERNAL PROTECTION DEVICES CIRCUIT BREAKER When setting up the power supply line, install a circuit breaker with trip curve C (or D depending on the type of load) upstream from the UPS, as indicated in the following table: Automatic external protection devices* UPS model Mains input Separate bypass input (optional)

  • Page 22: Cross Section Of The Cables

    ROSS SECTION OF THE CABLES We recommend that the INPUT/OUTPUT and the BATTERY cables pass under the UPS. As for the dimensioning of the cross section of the input and output cables, please refer to the following table: Cross section of cables (mm INPUT mains / OUTPUT...

  • Page 23: Connections Of The Model With Separate Bypass

    ONNECTIONS OF THE MODEL WITH SEPARATE BYPASS The very first connection to be carried out is that of the protection conductor (earth cable), which must be connected to the terminal marked PE. The UPS must not operate without being connected to an earthing system THE INPUT AND THE BYPASS NEUTRALS MUST ALWAYS BE CONNECTED.

  • Page 24: R.e.p.o

    N.B. - Tighten the clamps only after tightening the cables in their power terminals. Perform the cables so that when the clamp is tightened, they do not strain the power terminals. R.E.P.O. This isolated input is used to turn off the UPS remotely in case of emergency. This UPS is provided from the factory with “Remote Emergency Power Off”...

  • Page 25: Remote Maintenance Bypass Connection

    EMOTE MAINTENANCE BYPASS CONNECTION An additional maintenance bypass may be installed on a peripheral switchboard (see diagram below), for example, o allow replacing the UPS without interrupting the power supply to the load. Note: The Company provides this accessory already pre-assembled in an IP65 plastic box. It is essential to connect the "SERVICE BYPASS"...

  • Page 26: Connecting The Ups To The Battery Box ( Optional )

    ONNECTING THE TO THE ATTERY OPTIONAL THE CONNECTION BETWEEN THE UPS AND THE BATTERY BOX MUST BE MADE WITH THE DEVICES SWITCHED OFF AND UNPLUGGED FROM THE MAINS UPS SHUTDOWN PROCEDURE: Turn off all the devices connected to the USP, or use (if installed) the remote bypass option. Turn off the UPS following the correct procedure (see “Switching off the UPS”, in the “USE”...

  • Page 27: Setting The Nominal Battery Capacity - Software Configuration

    – ETTING THE NOMINAL BATTERY CAPACITY SOFTWARE CONFIGURATION Once the BATTERY BOX has been installed, it is necessary to configure the UPS to update the nominal capacity value (total Ah of batteries inside the UPS + external batteries). To perform this operation, use the dedicated configuration software. XTERNAL TEMPERATURE PROBE This NON-ISOLATED input can be used to measure the temperature inside a remote Battery Box.

  • Page 28: Use

    ESCRIPTION The purpose of this UPS is to ensure a perfect power supply voltage for the devices connected to it, whether mains power is present, or not. Once it has been connected and powered, the UPS generates a sinusoidal alternating voltage with stable amplitude and frequency, regardless of any sudden change or variation in the mains supply.

  • Page 29: Preliminary Operations And First Start - Up

    RELIMINARY OPERATIONS AND FIRST START Visual check of the connection Make sure that all the connections have been made by following carefully the instructions given in the "Connections" paragraph. Check that all the isolators are open. Closure of the battery fuse holders Close the 4 battery fuse holders (SWBATT) as shown in the figure below.
  • Page 30 After a few seconds, check that the display is turned on and that the UPS enters STAND-BY mode. If an error message appears on display indicating a wrong cyclic sense of the input phases, perform the following operations: Open all the input and output isolators Wait for the display to turn off Open the battery fuse holders Open all the protections upstream the UPS...

  • Page 31: Mains Start - Up

    AINS START Close the SWIN and SWBYP (if present) and leave the SWMB maintenance isolator open. After a few moments the UPS will be activated. The condensers are pre-charged and the "Lock / stand-by" led will start to flash: The UPS is in stand-by mode. Press the button to access the start-up menu.

  • Page 32: Graphic Display

    RAPHIC DISPLAY Located at the centre of the control panel there is a large graphic display, which provides, in the foreground and in real-time, a detailed overview of the UPS status. The user can switch on and off the UPS, consult the electrical measurements of the mains, output, battery etc.

  • Page 33: Menu Display

    ENU DISPLAY...

  • Page 34: Operating Mode

    PERATING MODE The mode that guarantees the maximum protection for the load is the ON LINE mode, in which the Energy for the load undergoes a double conversion and is reconstructed at the output in a perfectly sinusoidal manner, with the frequency and the voltage set by a precise digital control of the DSP regardless of the input (V.F.I.).

  • Page 35: Redundant Auxiliary Power Supply For Automatic Bypass

    EDUNDANT AUXILIARY POWER SUPPLY FOR AUTOMATIC BYPASS This UPS is provided with a redundant auxiliary power supply which allows the UPS to run on an automatic bypass, even in the event of faults on the main auxiliary power supply. If a fault occurs in the UPS, shutting off the main auxiliary power supply, the load will be powered anyway by the automatic bypass.

  • Page 36: Configuring The Ups

    ONFIGURING THE The following table shows all possible configurations available to tailor the UPS to your needs in the best way possible. (Control Panel) = Indicates that the configuration can be edited not only by the configuration software but also using the control panel (if function editing is enabled on the panel).
  • Page 37 FUNCTION DESCRIPTION DEFAULT POSSIBLE CONFIGURATIONS MOD. Advanced Functions • ± 0.25% Selects the allowed input Input frequency frequency range for • ± 0.5% ± 5% tolerance switching to bypass and • ± 0.75% for output synchronisation • ± 1 ÷ ±10 in steps of 1% Selects the voltage range Bypass voltage Low:...

  • Page 38: Communication Ports

    OMMUNICATION PORTS In the upper part of the UPS, behind the door (see "Views of the UPS") there are the following communication ports: Serial port, available with RS232 connector and USB connector. NOTE: the choice of one connector automatically excludes the other. Expansion slots for additional COMMUNICATION SLOT interface boards AS400 port Moreover, on the rear of the UPS it is possible to install as an option the power relay board (4 programmable contacts, 250Vac,...

  • Page 39: As400 Port

    AS400 P AS400 PORT PIN # NAME TYPE FUNCTION POWER Isolated auxiliary power supply +15V±5% 80mA max Ground to which the isolated auxiliary power supply (15V) POWER and the remote commands (Remote ON, Remote BYPASS, Remote OFF) refer By connecting pin 2 to pin 15 for at least 3 seconds the UPS REMOTE ON INPUT #1 is turned on...

  • Page 40: Buzzer

    UZZER The status and the faults of the UPS are signalled by the buzzer, which will emit a sound according to the various operating conditions of the UPS. The various kinds of sounds are described below: Sound A: This signal is emitted when the UPS is turned on or off using the apposite buttons. A single beep confirms the start- up, the activation of the battery test, and the cancellation of the programmed switch-off.

  • Page 41: Software

    Connect the RS232 communication port of the UPS to a COM communication port of the PC via the serial cable provided* or connect the USB port of the UPS to a USB port of the PC using a standard USB cable*. Download the software from www.riello-ups.com, selecting the desired operating system. Follow the installation program instructions.

  • Page 42: Troubleshooting

    TROUBLESHOOTING An irregular operation of the UPS is frequently not due to malfunctions, but to simple problems, inconveniences or distractions. Therefore, the user is advised to consult the table below providing useful information on how to solve the most common problems.
  • Page 43 PROBLEM POSSIBLE CAUSE SOLUTION THE JUMPER IS MISSING FROM THE R.E.P.O. THE DISPLAY SHOWS Assemble the jumper or make sure that it is inserted CONNECTOR (see “FRONT correctly. VIEWS OF THE UPS”) OR IT IS NOT INSERTED CORRECTLY MAINTENANCE BYPASS ISOLATOR (SWMB) Open the isolator (SWMB) located behind the door.
  • Page 44 PROBLEM POSSIBLE CAUSE SOLUTION PROTECTION DEVICE Restore the protection device upstream. WARNING: UPSTREAM FROM THE check that there is no overload or short circuit at the BYPASS LINE OPEN (ONLY IF THE DISPLAY SHOWS output of the UPS BYPASS IS SEPARATE) ONE OR MORE OF THE FOLLOWING CODES: BYPASS ISOLATOR OPEN...
  • Page 45 PROBLEM POSSIBLE CAUSE SOLUTION THE DISPLAY SHOWS ONE OR MORE OF THE It is recommended to replace the batteries of the UPS, FOLLOWING CODES: since they ate no longer able to maintain the charge for THE BATTERIES HAVE A39, A40 a sufficient autonomy.

  • Page 46: Status / Alarm Codes

    TATUS ALARM CODES By using a sophisticated self-diagnostic system, this UPS can check and indicate on the display panel its status and any error and/or fault occurred during operation. Whenever a problem arises, the UPS signals the event by showing the code and the corresponding alarm on the display.
  • Page 47 Anomalies: these are “minor” problems, which do not bring the UPS to a halt, but can reduce its performance or inhibit the use of some of its functions. CODE DESCRIPTION Inverter not synchronised External synchronism failed Overvoltage on input line of Phase1 Overvoltage on input line of Phase2 Overvoltage on input line of Phase3 Undervoltage on input line of Phase1...
  • Page 48 Faults: These are more critical problems compared to the “Anomalies”, as if they persist they may bring the UPS to a halt even in a very short time. CODE DESCRIPTION Internal communication error Wrong cyclic sense of the input phases Phase1 input fuse broken or input relay locked (will not close) Phase 2 input fuse broken or input relay locked (will not close) Phase3 input fuse broken or input relay locked (will not close)
  • Page 49 Locks: these codes indicate that the UPS, or one of its parts, is locked. Usually, they are preceded by an alarm signal. In case of faults and consequent locking of the inverter, the latter will be turned off and the load will be powered via the bypass line (this procedure is excluded for locks caused by serious and persistent overloads and for those caused by a short circuit).

  • Page 50: Technical Data

    TECHNICAL DATA UPS Models MST 30 MST 40 INPUT STAGE Nominal voltage 380-400-415 Vac 3-phase with neutral (4 wire) Nominal frequency 50-60Hz Accepted input voltage tolerance due to no ± 20% @ 100% load intervention of the battery (referred to...
  • Page 51 UPS Models MST 30 MST 40 BATTERY CHARGER STAGE Nominal voltage ±240Vdc Maximum recharge current Battery charger algorithm Two levels with temperature compensation Analogue switching current under µP control Technology (PWM voltage and charge current adjustment) Input voltage tolerance for recharging at...

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