Aros SENTRY MPS-HP User Manual
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Aros SENTRY MPS-HP User Manual

100 to 250 kva three-phase output uninterruptible power supply
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100 to 250 kVA Three-Phase Output
SENTRY MPS-HP

USER MANUAL

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  • Page 1: User Manual

    100 to 250 kVA Three-Phase Output SENTRY MPS-HP USER MANUAL...
  • Page 2 AROS s.r.l. Via Somalia, 20 200032 Cormano (MI) – Italy Tel. +39 02 66327.1 Fax +039 02 66327.231 e-mail info@aros.it www.aros.it page 2 / 75 0MNA080A55-GB REV 01...
  • Page 3 Thank you for choosing our product. Aros is highly specialized in the development and production of uninterruptible power supplies (UPS). The UPSs of this series are high quality products, carefully designed and manufactured to ensure optimum performance. Symbols used in the manual...
  • Page 4 Definition of “operator” and “specialized technician” The professional figure responsible for accessing the equipment for ordinary maintenance purposes is defined with the term operator. This definition covers personnel that know the operating and maintenance procedures for the equipment, and that have been: 1.
  • Page 5 (PPE). • Maintenance must not be carried it inside the SENTRY MPS-HP when it is being powered from the mains or when the UPS is operating via the battery. For maintenance close the maintenance disconnector SWMB and open all the other switches. The disconnecting switch or battery fuse located in the battery cabinet should also be opened.
  • Page 6 • In the event of faults or malfunctions, contact your local distributor or Aros. All repair operations must be carried out by authorized technicians. • Under no circumstances must water be used to clean the internal or external electrical parts of the cabinet.

  • Page 7: Table Of Contents

    NSTALLATION ENVIRONMENT Ambient conditions: ...................... 11 Dimensions of the premises ..................11 Cooling of the premises ....................11 Air change for battery premises ................... 12 SENTRY MPS-HP ..........13 IN SINGLE CONFIGURATION Set-up of the electrical system ..................13 3.1.1 Input ..............................
  • Page 8 Electrical system set-up ....................36 4.2.1 Input ..............................36 4.2.2 Differential ............................36 4.2.3 Emergency power off device (EPO) ....................36 4.2.4 External maintenance by-pass......................37 Mains, load and battery connections................38 4.3.1 UPS AC input / output power connection ..................38 4.3.2 Power connections battery side.

  • Page 9: Preliminary Operations

    Preliminary operations Removing the packaging and positioning the device On delivery, the packaging must be inspected to ensure that it is whole and that it has not been crushed or dented. Check in particular that neither of the two impact resistant devices on the packaging is red; if one of them is red, follow the instructions on the packaging.

  • Page 10: Handling

    For the installation of a battery cabinet, if provided with the uninterruptible power supply, follow the instructions given in the specific manual. The list of material provided may vary depending on the order specifications. As a general rule, the packaging should include the following: this manual, the installation drawing, the warranty and eventual accessories.

  • Page 11: Installation Environment

    The SENTRY MPS-HP and the battery cabinet have been designed for indoor installation. The choice of premises for installation should comply with the points set out below. Ambient conditions: • ensure that the floor can support the weight of the SENTRY MPS-HP and of any battery cabinet that may be used; • avoid dusty environments;...

  • Page 12: Air Change For Battery Premises

    In order to ensure proper air circulation, and therefore the correct operation of the UPS, measures must be taken during installation to avoid any obstructions to the free circulation of air. These include the following: • ensure a distance of at least 60 centimetres from the ceiling, so as not to hinder air extraction, •...

  • Page 13: Sentry Mps-Hp In Single Configuration

    The UPS input must have a max. current protection device for the section of line coming from the distribution panel as well as for the two inputs into the SENTRY MPS-HP: the rectifier line and the by-pass line. The protection device should be sized according to the situation, as follows: a) Single power line The fuse represented with the letter F alone provides the protection for all three lines mentioned above.

  • Page 14: Selectivity

    This is known as selectivity, and ensures that the remaining feeders maintain the power supply. In order to select the correct protection devices to be inserted downstream of the SENTRY MPS-HP, the following two operating modes have to be taken into consideration: mains power supply and battery power supply.

  • Page 15: Differential

    50% of the rated power. 3.1.3 Differential If the SENTRY MPS-HP protection against electric shock uses differential current devices, these have to have the following characteristics: minimum differential current 300mA sensitive direct current and unidirectional components (class A or class B) protected against spurious tripping;...

  • Page 16: Battery

    Backfeed protection The SENTRY MPS-HP is provided with a device to prevent voltage backfeed on the input line due to an internal fault. This protection device works by switching off the inverter if the current flow is faulty, thereby causing voltage backfeed on the by-pass line during operation from the inverter.

  • Page 17: Mains, Load And Battery Connections

    - EPO switch with auxiliary contacts (not provided). On the SENTRY MPS-HP, the jumper on the EPO terminals (page 20) must be removed, and the wires from the auxiliary contact of the button must be connected in place of the jumper.

  • Page 18: Input Line Without Neutral

    3.2.1 Input line without neutral The transformer must be inserted either on the mains supply line or on the by-pass line (as shown in the drawings). MAINS LINE LOAD 3Ph+N OPTIONAL Single power line without neutral BY-PASS LINE OPTIONAL LOAD 3Ph+N MAINS LINE main power supply and separate by-pass without neutral...

  • Page 19: Input And Output Line Without Neutral

    3.2.2 input and output line without neutral If the input line and the load are three-phase without neutral type (and only in this case), a kit to create the signal neutral (optional) may be used. The kit may only be used by a specialized technician. OPTIONAL LOAD MAINS LINE...

  • Page 20: Connection Of Signals And Remote Commands

    Connection of signals and remote commands In order to access the interface cards, open the door and remove the protection panel secured with screws (K) as shown in the drawing: A- PARALLEL (optional) B- EPO (emergency power off control) C- REMOTE COMMANDS AND ALARMS D- RS232-2 E- RS232-1 F- SLOT 1 (main)

  • Page 21: Remote Commands And Alarms

    3.3.3 REMOTE COMMANDS AND ALARMS -C- The card is equipped with a terminal board with 12 positions which has the following: POWER SUPPLY 1 power supply 12Vdc 80mA(max.) [pins 10 and 11]; ALARMS 3 potential-free change-over contacts for alarms; COMMAND 1 command programmable from the panel [pins 11 and 12];...

  • Page 22: Rs232

    The position of the contacts shown is without the alarm present. The contacts can take a max. current of 0.5A with 42V. RL 1 RL 2 RL 3 IN 1 Please refer to APPENDIX A for the list of alarms and commands that can be programmed. The change of function may be made by the technical support personnel.

  • Page 23: Slots 1-2 , The Following Cards May Be Inserted (Optional)

    TFTP (to configure or update the device when connected to the network). The main function of this device is to integrate the SENTRY MPS-HP into the LAN network ensuring a high level of reliability of communication with the server to enable full management and control of the SENTRY MPS-HP.

  • Page 24: Multii / O (Optional)

    MULTI I / O (optional) -L- The function of this accessory is to convert external signals from the SENTRY MPS-HP (e.g. temperature of environment, temperature of battery premises, etc.) into signals by means of relay contacts or via serial output RS485 in MODBUS protocol.
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  • Page 26: Start-Up Procedure

    Start-up procedure mains power supply The mains power supply has to be present in order to start up the SENTRY MPS-HP. For start-up from battery, the option “KIT FOR START-UP FROM BATTERY” (COLD START) has to be installed. The SENTRY MPS-HP output terminals will be powered in this phase and all applications connected will receive voltages.

  • Page 27: Battery Operation Check

    Once the UPS has been installed, check that the message NORMAL OPERATION appears on the first line of the display panel and that the UPS model is displayed in the left-hand corner of the second line according to the coding shown below: X000YZZ SENTRY MPS-HP model 000 output power [kVA] Y output frequency: Y = _...

  • Page 28: Operating Modes

    The various equipment operating modes are described below. setting The operating mode is set when the SENTRY MPS-HP is installed; it may be changed subsequently but this should always be done by a specialized technician. 3.5.1 On - line - factory setting - load always powered by inverter, in the event of an input mains failure the load continues to be powered from the inverter using the energy stored by the batteries.

  • Page 29: Standby-Off (With Mains Present The Load Is Not Powered)

    3.5.3 Standby-off (with mains present the load is not powered) load not powered, in the event of an input mains failure the load is powered from the inverter using the energy stored by the batteries. Standby-Off: if there is a mains power supply, UPS output is zero. The RECTIFIER remains on and keeps the battery charged.

  • Page 30: Personalizations

    - SENTRY MPS-HP in NORMAL OPERATION procedure a) the power supply to the load is not interrupted in any way; - SENTRY MPS-HP with output not synchronized with the by-pass line procedure b) the power supply to the load is interrupted (therefore this operation should be effected only if absolutely necessary).

  • Page 31: Ups And Load Shutdown

    After all the maintenance operations, restart the UPS following the instructions in the section on START-UP PROCEDURE (see page 26). Then open disconnector SWMB (if it was previously closed). The SENTRY MPS-HP will return to NORMAL OPERATION. UPS and load shutdown This operation will cause the shutdown of the load connected on the output.

  • Page 32: Block Diagram

    Block diagram page 32 / 75 0MNA080A55-GB REV 01...

  • Page 33: Components Of The Block Diagrams

    BATTERY LED starts flashing; in these conditions it is advisable to save any work in progress. After this time the SENTRY MPS-HP will interrupt the power supply to the loads. When the MAINS is restored, the UPS automatically restarts and starts recharging the batteries.
  • Page 34 (inverter output) to an unprotected line (by-pass line) or vice versa. The SENTRY MPS-HP is provided with a device to prevent the backfeed of voltage to the input line after an internal fault, known as “BACKFEED PROTECTION”.

  • Page 35: Sentry Mps-Hp In Parallel Configuration

    Sentry MPS-HP in parallel configuration Introduction SENTRY MPS-HPs may be connected in a parallel configuration to increase both the reliability of the power supply to the load and the power available in output. Up to 8 UPSs can be parallel-connected. It is recommended to connect units of the same power.

  • Page 36: Electrical System Set-Up

    Electrical system set-up All the information contained in the section on electrical system set-up in relation to the SENTRY MPS-HP (page 13) remains valid with the addition of the information set out below. 4.2.1 Input The instructions seen in the first part of the manual for a single UPS remain valid; each unit must be protected with equivalent fuses or switches.

  • Page 37: External Maintenance By-Pass

    4.2.4 External maintenance by-pass. In some cases, in order to facilitate maintenance operations of the individual units making up the system, it may be advisable to install an external maintenance by-pass. This device, which is housed in a cabinet the same height as the UPS, consists of two disconnectors, one for the output and one for the by-pass;...

  • Page 38: Mains, Load And Battery Connections

    The same rule must also be observed with separate power lines: the lengths of the cables of the by-pass line + output line must be the same between all the SENTRY MPS-HP connected in parallel. Lack of compliance with this rule may cause a current imbalance between the UPSs when the load is powered through the by-pass line.

  • Page 39: Power Connections Battery Side

    1,2,3 - parallel UPSs. BATTERY CABINET if provided: In order for the battery cabinet to be connected to the SENTRY MPS-HP, it must be provided with a sectioning device. This disconnector must be closed only when the UPS is started up regularly. In the phase of connection to the UPS the disconnector must remain in the open position.

  • Page 40: Connection Of Signals

    SIGNALS and REMOTE COMMANDS). - RJ45-flat-adapter signals parallel card. N.B.: the SENTRY MPS-HP may be provided with two versions of parallel card that differ in the type of switch used (type 1 or type 2). The difference between the two switches is the position of the control lever.
  • Page 41 Using the cable with two RJ45 terminals provided with each UPS (A), make the connections as shown below: single SENTRY MPS-HP configured in parallel If it is required to use a UPS that has been configured as a parallel unit on its own, the signal card must be jumpered with the cable provided as shown below.
  • Page 42 SENTRY MPS-HP in paralell D UPS1 LED on, UPS2 LED off, UPS3 LED off SW1 start position UPS1, SW1 cont position UPS2, UPS3 UPS 2 UPS 2 UPS 1 To add other parallel UPSs, a “UPS PARALLEL CABLE” must be added for each new UPS connected.

  • Page 43: Start-Up Procedure

    Start-up procedure Before starting up the whole system for the first time, some tests have to be performed to check that the UPSs are connected to each other correctly. A) open all the switches and disconnectors on the UPSs (SWIN, SWBY, SWOUT and SWMB) and on the battery cabinets.

  • Page 44: Operating Modes

    Operating modes Several SENTRY MPS-HP units connected in parallel share the current absorbed by the load between them. In a system with several UPSs connected in parallel, there is a single MASTER unit and the remaining units will be SLAVES. The UPSs are all exactly the same and the MASTER is chosen on start-up. The MASTER unit is shown on the display panel by the capital letter “P”...
  • Page 45 “Parallel signal cable fault” on the panel N.B.: in this situation the load is powered correctly. All the SENTRY MPS-HP supply power to the load. Let us assume that the signal cables between UPSs 1, 3 and 2,3 are opened.

  • Page 46: By-Pass For Maintenance

    SWMB must not be closed on a UPS that is off and that is connected in parallel with other units operating normally. This operation may cause a fault on the UPSs which may create a dangerous voltage at the output. SWMB may be closed with the SENTRY MPS-HP operating by following the procedure described in the section “Operating modes” .
  • Page 47 N.B.: After carrying out the operations indicated above, personnel must wait around ten minutes for the capacitors to discharge before working on the inside of the SENTRY MPS-HP. After the maintenance operations have finished, restart the UPS by following the instructions in the section on START-UP PROCEDURE (see page 43) and then open disconnector SWMB (if closed).
  • Page 48 With the lever of SW1 in the start position in one UPS only and the lever in the cont position on all the others, check that all the UPSs are operating normally and that the system is sharing the output power. Example of hot removal With hot removal, it is not necessary to shut down all the UPSs of the system in order to remove one.
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  • Page 50: Signal Panel Functions

    Signal panel functions General description The control panel located at the front of the equipment may be used to monitor and control all the parameters of the UPS and the batteries connected to it. The operating status of the UPS is shown by means of a liquid crystal display (LCD) with two rows of 40 characters and four LEDs with three operating states: on steady, on flashing, off.

  • Page 51: Signal Messages

    The load is powered directly from the input and will remain unpowered if there is a mains failure. WRONG VOLTAGE BY-PASS or SWBY, FSCR OFF The SENTRY MPS-HP does not recognize the by-pass line because it is outside the acceptance field or because disconnector SWBY is open, WRONG POWER SUPPLY VOLTAGE or SWIN OFF The power supply voltage is not correct, the load is powered with the energy stored by the battery.
  • Page 52 %VA, exceeds the value of 100%. The load must be reduced so as not to damage the SENTRY MPS-HP. The load must be reduced in order to return to NORMAL OPERATION. Wait a few minutes to allow cooling (e.g.
  • Page 53 REMOTE COMMAND FOR BY-PASS: ACTIVE 8=DEACTIV. Alarm present when the system has been deactivated and switched onto the by-pass, by the command applied with the "signals and remote commands" connector. The command is not stored, and the system returns to normal operation when the command is cancelled, provided there is a power supply voltage.

  • Page 54: Control Panel Menu

    Control panel menu 5.4.1 Basic menu If no commands have been inserted, the first line of the basic menu shows: “NORMAL OPERATION” if there are no alarms; “ xxxxxxxxxxxxxxxxxxxxxxxxx ” if there are alarms, the active ALARM messages are displayed one at a time for a few seconds.

  • Page 55: Language Setting

    The value 100%Ah is obtained from the measurement of the charge current and the time taken to recharge. The number indicates the recharge value as a percentage according to the capacity of the battery connected and to the quantity of charge used during battery operation. The system automatically remains in rapid charging for all the time needed to supply the battery with the quantity of charge lost during the discharge.

  • Page 56: Measurements

    5.4.3 Measurements The measurements are selected from the basic menu by pressing key 2 IN=100,100,100%V, 50.2Hz OUT=230,230,230Vln Measurement of the three voltages, neutral phase and input Measurement of the three output phase voltages of frequency. The voltage is indicated as a percentage of the rated the UPS, with the concatenated value in brackets.

  • Page 57: Menu Key 3 "Key", Controls

    5.4.5 Menu key 3 "key", Controls BATTERY TEST menu 3, 2 keys 8 and 7 to increase and DISPLAY CONTRAST: 6 ADJUSTMENT: 7=-, 8=+ decrease the contrast. Code ? ………………. 2=BATTERY TEST 4=DISPLAY CONTRAST menu 3, 5 5=PERSONALIZ. 6=BYPASS 7=TOTAL BLOCK INVERTER OFF/BYPASS menu 3, 6 menu 3, 7...

  • Page 58: Personalizations

    5.4.5.2 PERSONALIZATIONS The "PERSONALIZATIONS" menu is accessed by means of key 5 from the COMMANDS menu, an intermediate menu will then be displayed in which a CODE has to be entered. All the CODES shown below are available. Access by CODE ensures that unauthorized persons cannot modify the operating parameters of the equipment.

  • Page 59: Rated Output Voltage

    5.4.5.4 RATED OUTPUT VOLTAGE. Press the following sequence of keys to access the menu: 3, 5, 436215, 2 Keys 7 and 8 can be used to decrease or increase the rated output voltage. The value displayed is the voltage between phase and neutral "Vln". The value set modifies the operation of the inverter, during normal operation.

  • Page 60: Pre-Alarm

    Recharging at two voltage levels (configurable): This type of recharging is effected with two current levels (EN 50272-2); the first phase comprises rapid charging (U1) with limited current, while in the second phase charging is with float voltage (U2). N.B.: this type of recharging may be configured on site and is mainly used for special type batteries such as open vase and NiCd.
  • Page 61 Type “0” Battery With the battery set to type 0, the following menu is displayed: (316Vmin,336Vp,354Vs) Prealarm : 5min Adjustment: (4=setV), 7=-,8=+ When key 4 is pressed, the program proposes the setting of the three voltage values. Vbat.test: Vmin., Vp, Vs: 316, 336, 354V Adjustment: 3-4+, 5-6+, 7-8+ Preset value...

  • Page 62: Auto-Off "Va

    5.4.5.7 AUTO-OFF "VA" Press the following sequence of keys to access the menu: 3, 5, 436215, 6: Automatic Switch-OFF when Output < 0%VA Adjustement: (5=Toff,Ton) 7=-,8=+ Press key 1 to exit the menu. Keys 7 and 8 can be used to decrease or increase the percentage threshold of the output load for the AUTO-OFF function and the switching of the system on to the by-pass line;...

  • Page 63: By-Pass Voltage Field

    The "end of discharge pre-alarm" contact for remote alarms is also switched. In this case the system remains active for the next 4 minutes, after which the system switches onto the by-pass line and then deactivates. There is no output voltage after deactivation. The interval between the start of the alarm and deactivation is equal to the interval selected as PRE-ALARM.

  • Page 64: Dial /Send" Modem

    N.B.: for correct operation, use a modem that has already been configured to recognize "HAYES" type commands and that is able to dial the telephone number using pulses or tones as required by the telephone line that is to be used.

  • Page 65: Ident

    5.4.5.15 IDENT. Press the following sequence of keys to access the menu: 3, 5, 436215, 7, 7: Press key 1 to exit the menu. Keys 7 and 8 can be used to decrease or increase the number used for the identification of a single unit in systems with several UPS connected to a single RS232 serial line.

  • Page 66: Total Block

    5.4.5.19 TOTAL BLOCK Press the following sequence of keys to access the menu: 3, 7 : Total System Shut-OFF Command = 47263 WARNING, the Output Voltage will be OFF Exit the menu by pressing key 8 or any other key with a sequence other than the one described here. Pressing keys 4, 7, 2, 6, 3 in succession as shown on the display activates the command for the TOTAL BLOCK of the system.

  • Page 67: Excluding The Acoustic Alarm

    The "RECORDED CODES" menu is accessed with key 6 from menu 4 "RECORDED EVENTS" and menus 4, 2; 4, 2, 2; 4,2,2,2 that is, the recorded measurement menus. Return to the basic menu by means of key 1. Apart from key 6, the other keys have the same functions as those described for menu 4, and the messages on the lower line also remain the same.

  • Page 68: Maintenance

    Maintenance The uninterruptible power supply is designed and produced to last a long time even in the most severe service conditions. It should be remembered however that this is electrical power equipment, which requires periodic controls. Moreover, some components have a limited lifespan and as such must be periodically checked and replaced should conditions so dictate: in particular the batteries, the fans and in some cases the electrolytic condensers.
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  • Page 71: General Characteristics

    General characteristics SENTRY MPS-HP Power (kVA) Mechanical Data Width MPS (mm) 1000 Depth / height (mm) 850 / 1900 Ventilation Forced by internal fans Degree of protection of the cabinet IP20 (greater degree of protection than required) Cable entry Underneath/Back...
  • Page 72 SENTRY MPS-HP Power (kVA) Electrical Data INVERTER Rated power Pf 0.8 (kVA) Active power Pf 1 (kW) Active power with load power factor from 0.8 inductive to 0.9 capacitive (kW). Rated power reduction factor (kVA/kW) 0.85 for cosfi =0.8 in advance...
  • Page 73 Electrical Data SENTRY MPS-HP Power (KVA) BY-PASS Rated voltage 400Vca 3-phase + N (configurable from 380V to 415V) Rated voltage tolerance ± 15% (adjustable from ± 10% to ± 25% from control panel) Rated frequency 50 or 60Hz (auto-sensing) Frequency tolerance ±...

  • Page 74: Appendixa - Remote Commands And Alarms Card

    Appendix A - remote commands and alarms card - Technical support personnel may give the COMMAND and the three ALARMS functions that are different to the standard configuration of the alarms card (see page 21) . The options available are listed below: ALARMS: INTERFERENCE ON BY-PASS LINE MANUAL BY-PASS, SWMB-ON...
  • Page 75 To be used when the load may Forces the selection of the UPS support mains interference or Standby-ON operation. frequency variations and it is This is done with the contact kept Standby ON thus preferred to improve system closed; if reopened, the command is efficiency.

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