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Summary of Contents for Schrack Technik USMLT 30
- Page 1 USER MANUAL UNINTERRUPTIBLE POWER SUPPLY Series AVARA Multi USMLT 30 - 40 kVA 3 phase input / 3 phase output On Line / Double Conversion (VFI) Technology...
- 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.
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Page 3: Table Of Contents
OVERVIEW AVARA M ULTI RONT VIEWS OF THE IEWS OF THE CONNECTIONS EAR VIEW OF THE IEW OF THE CONTROL PANEL EPARATE BYPASS INPUT OPTIONAL NTERNAL RANSFORMER OPTIONAL 208 V V ERSION OPTIONAL XTERNAL PROTECTION DEVICES ROSS SECTION OF THE CABLES ONNECTIONS NTERNAL TRANSFORMERS VIEW ECHNICAL DATA... - Page 4 EMOTE MAINTENANCE BYPASS CONNECTION ONNECTING THE TO THE ATTERY OPTIONAL – ETTING THE NOMINAL BATTERY CAPACITY SOFTWARE CONFIGURATION XTERNAL TEMPERATURE PROBE EMOTE SYNOPTIC PANEL OPTIONAL ESCRIPTION RELIMINARY OPERATIONS AND FIRST START AINS START ATTERY START WITCHING OFF THE RAPHIC DISPLAY ENU DISPLAY PERATING MODE (SWMB)
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Page 5: Overview
OVERVIEW AVARA M ULTI The UPSs in the USMLT 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 + P inside), together with the adoption of specific circuit solutions that use last-generation components, have allowed to reach high performances such as: ➢... -
Page 6: Front Views Of The Ups
RONT 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: Input isolator / Separate bypass isolator Slot for auxiliary communication board (optional) / Manual bypass isolator / Output isolator From the left: Battery start button COLD START (above) / R.E.P.O. (Remote Emergency Power Off) Terminal cover connector / Contact holder for AS400 / USB communication port / RS232 communication port Battery fuse holder isolator Parallel board slot (optional)
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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 Power relay board slot (optional) Power board fans EnergyShare / Aux Output sockets (10A max.) Battery charger fan and relative protection (optional) -
Page 10: View Of The Control Panel
IEW OF THE CONTROL PANEL Mains operation LED • On steady: mains operation with good bypass line and synchronised inverter • Flashing: mains operation with bad or disabled bypass line and/or non-synchronised inverter • Flashing in standby: programmed restart function active and mains present Battery operation LED •... -
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: Ersion ( Optional )
208 V V ERSION OPTIONAL THE 208 V VERSION (OPTIONAL) IN THE UPS SERIES DIFFERS FROM THE STANDARD VERSION AS REGARDS THE INPUT AND OUTPUT VOLTAGE. THIS LEADS TO A SERIES OF PARAMETERS THAT DIFFER FROM THE STANDARD VERSION, LISTED BELOW. CAUTION: The data contained in this paragraph applies to the 208 V Version only. -
Page 13: Ross 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 14: Technical Data
ECHNICAL DATA UPS Models USMLT 30 USMLT 40 INPUT STAGE Nominal voltage 208-220-228 Vac 3-phase with neutral (4 wire) Nominal frequency 50-60Hz 20% @ 100% load Accepted input voltage tolerance due to no intervention of the battery (referred to 220Vac) -40% +20% @50% load ... -
Page 15: Reducing The Load ( To 115V And 110V)
UPS Models USMLT 30 USMLT 40 BATTERY CHARGER STAGE 240Vdc Nominal voltage Maximum recharge current Battery charger algorithm Two levels with temperature compensation Analogue switching current under P control Technology (PWM voltage and charge current adjustment) Input voltage tolerance for recharging at maximum... -
Page 16: Connections
ONNECTIONS The very first connection to be carried out is that of the protection conductor (earth cable). The UPS must not operate without being connected to an earthing system THE INPUT NEUTRAL MUST ALWAYS BE CONNECTED Connect the input and output cables to the terminal board as shown in the figure below: Note: Connections to the BATTERY module are required only when the Battery Box is present (see paragraph "Connecting the UPS to the Battery Box (optional)") -
Page 17: 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 USMLT 30 USMLT 40 Nominal power 30kVA 40kVA Operating temperature 0 ÷ 40 °C Max. relative humidity during operation... -
Page 18: 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 19: 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 20: 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 Remove the 2 brackets securing the UPS to the pallet by by sliding it upwards. -
Page 21: 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: ▪... -
Page 22: 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 23 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 24 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.
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Page 25: 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 26: Xternal 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 27: Ross 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 28: 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 29: 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 30: 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 31: 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. ➢... -
Page 32: 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 33: 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 34: 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 35 ➢ 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 ▪...
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Page 36: 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. ... -
Page 37: Graphic Display
RAPHIC DISPLAY At the centre of the control panel is a wide graphic display for a constant detailed, real-time overview of UPS status. The first page is a schematic view of UPS operating status: Input Line Battery Charger Line PFC Converter Battery Line Inverter % Load... - Page 38 In addition, the user can switch the UPS on/Off directly from the control panel, consult network, output, battery measurements, etc. and make the main machine settings. The display is sub-divided into four main zones, each with its own specific role. Graphic display sample screens (screens for demonstration purposes;...
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Page 39: Menu Display
ENU DISPLAY... -
Page 40: 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 41: 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 42: Power Reduction For 200/208V Phase Neutral Loads
200/208V OWER REDUCTION FOR PHASE NEUTRAL LOADS In case the output voltage is set to 200V or 208V PHASE-NEUTRAL (see the “Configuring the UPS” paragraph), the maximum power output of the UPS is reduced compared to its nominal value, as shown in the diagram below: ONFIGURING THE Configurations which can be modified by the user from the control panel are listed in the table below. - Page 43 Configurations which can be modified by means of configuration software available at service centres are listed in the following table. FUNCTION DESCRIPTION DEFAULT Operating mode Selects one of five different operating modes ON LINE Selects the rated output voltage Output voltage 230V (Phase - Neutral) Output nominal frequency...
- Page 44 FUNCTION DESCRIPTION DEFAULT Disabled (load NOT Bypass active in stand-by Load supply from bypass with UPS in stand-by supplied) Selects the accepted range for the input frequency for Bypass frequency tolerance switching to the bypass and for the synchronisation of the ±...
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Page 45: 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. ➢... -
Page 46: 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 47: 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 48: Software
OFTWARE ONITORING AND CONTROL SOFTWARE The UPSMon software guarantees an effective and user-friendly management of the UPS, by displaying all the most important information such as input voltage, load applied, and battery capacity. It can also perform automatically shutdown operations, send e-mails, sms and network messages when specific user- selected events occur. -
Page 49: 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 50 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 Open the isolator (SWMB) located behind the door.
- Page 51 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 52 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.
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Page 53: 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 54 ➢ 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 55 ➢ 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 56 ➢ 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).
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Page 57: Technical Data
TECHNICAL DATA UPS Models USMLT 30 USMLT 40 INPUT STAGE Nominal voltage 380-400-415 Vac 3-phase with neutral (4 wire) Nominal frequency 50-60Hz 20% @ 100% load Accepted input voltage tolerance due to no intervention of the battery (referred to 400Vac) -40% +20% @50% load ... - Page 58 UPS Models USMLT 30 USMLT 40 BATTERY CHARGER STAGE 240Vdc Nominal voltage Maximum recharge current Battery charger algorithm Two levels with temperature compensation Analogue switching current under P control Technology (PWM voltage and charge current adjustment) Input voltage tolerance for recharging at...
- Page 60 MAN_AVARA Multi USMLT_30-40kVA_EN_2013_02_0MNMSTK30RU5LUC 0MNMSTK30RU5LUC...
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