Powertronix Mizar, Alcor User Manual

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POWERTRONIX

UNINTERRUPTIBLE POWER SUPPLY

User Manual

MIZAR 10÷15 kVA

ALCOR 20÷40 kVA

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Document : DT0430 English - Ptx

Revision Date Issued by Approved by

03 09/02/2010 Riccardo G. Andrea G. 04 04-03-2010 Riccardo G. Andrea G. 05

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1. GENERAL OVERVIEW............................................................................................................................................4

1.1. UPS GENERAL DESCRIPTION.......................................................................................................................4

1.1.1. UPS APPLICATIONS ...............................................................................................................................4

1.1.2. POWER AND AUTONOMY.....................................................................................................................4

1.1.3. SAFETY AND SIMPLICITY OF USE ......................................................................................................4

1.2 CONFIGURATION AND OPTIONAL EQUIPMENT.........................................................................................5

1.2.1. BASE CONFIGURATION.........................................................................................................................5

1.2.2. BATTERY CABINET.................................................................................................................................5

1.2.3. TRANSFORMER CABINET.....................................................................................................................5

1.2.4. REMOTE COMMUNICATION CARD .....................................................................................................6

1.2.5. UPS MANAGEMENT SOFTWARE.........................................................................................................6

1.2.6. REMOTE PANEL ......................................................................................................................................7

1.2.7. REMOTE E.P.O. PUSH - BUTTON.........................................................................................................7

1.2.8. REMOTE MANUAL BY-PASS.................................................................................................................7

1.3 OPERATINGPRINCIPLE..................................................................................................................................8

1.3.1. UPS BLOCK DIAGRAM...........................................................................................................................8

1.3.2. INPUT STAGE, POWER MODULE AND OUTPUT STAGE ................................................................8

1.3.3. LOGIC AND AUXILIARY CIRCUITS.......................................................................................................9

1.3.4. BATTERIES...............................................................................................................................................9

1.3.5. MANUAL BY-PASS...................................................................................................................................9

1.3.6. FRONT PANEL .........................................................................................................................................9

2. INSTALLATION INSTRUCTIONS........................................................................................................................10

2.1 GENERAL INFORMATION..............................................................................................................................10

2.2 RECEPTION AND IDENTIFICATION.............................................................................................................10

2.3 STORAGE.........................................................................................................................................................10

2.4 UPS POSITIONING..........................................................................................................................................11

2.5 ROOM SPECIFICATIONS...............................................................................................................................13

2.6 LAYOUT AND CONNECTIONTO THE MAINS.............................................................................................14

2.7 UPS AUXILIARY CONNECTIONS..................................................................................................................20

2.7.1. REMOTE COMMUNICATION BOARD.................................................................................................21

2.7.2. REMOTE PANEL (Optional) ..................................................................................................................22

2.7.3. UPS MANAGEMENT SOFTWARE.......................................................................................................23

2.7.4. REMOTE E.P.O. BUTTON.....................................................................................................................23

2.7.5. REMOTE MANUAL BY-PASS...............................................................................................................24

2.7.6. EARTH CONNECTION ..........................................................................................................................24

3 CONTROL PANEL.................................................................................................................................................25

3.1. INTRODUCTION..............................................................................................................................................25

3.2. LCD CONTROLPANEL...................................................................................................................................26

3.2.1. MENU 1: UPS STATUS AND ALARMS................................................................................................28

3.2.2. UPS IN FAULT CONDITIONS...............................................................................................................29

3.2.3. MENU 2: MEASUREMENTS.................................................................................................................30

3.2.4. MENU 3: UPS COMMANDS..................................................................................................................31

3.2.5. MENU 4: PANEL SETUP .......................................................................................................................31

3.2.6. MENU 5: EVENTS RECORDER MANAGEMENT...............................................................................31

3.2.7. MENU 6: SERVICE MODE ....................................................................................................................32

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4. INSTRUCTIONS FOR USING THE UPS.............................................................................................................33

4.1. INTRODUCTION..................................................................................................................................................34

4.2. POWERSWITCHES........................................................................................................................................34

4.3. UPS START-UP CONFIGURATION...............................................................................................................36

4.4. INSTRUCTION FOR SYSTEM START-UP IN “AUTOMATIC” MODE........................................................37

4.5. INSTRUCTION FOR SYSTEM START-UP IN “NORMAL” MODE..............................................................38

4.6. INSTRUCTIONSFOR COMPLETE SHUTDOWN OF THE UPS .................................................................39

4.7. INSTRUCTIONSFOR SWITCHINGSYSTEM TO MANUALBY-PASS MODE..........................................40

4.8. INSTRUCTIONSFOR RETURN FROM MANUAL BY-PASS MODE TO NORMAL OPERATION...........41

4.9. E.P.O.(EMERGENCYPOWER OFF) STOP.................................................................................................41

4.10. MANAGING THE UPS BATTERY..............................................................................................................42

4.11. BATTERYTEST PROGRAMMING............................................................................................................42

5 UPS IN PARALLEL................................................................................................................................................43

5.1 SYSTEM SET-UP.............................................................................................................................................43

6 TROUBLESHOOTING...........................................................................................................................................44

6.1. GENERAL ALARMS.........................................................................................................................................44

6.2. FIRE..................................................................................................................................................................45

6.3. FAULTS RELATED TO THE NATURE OF THE LOAD .................................................................................45

7. SCHEDULED MAINTENANCE.............................................................................................................................46

7.1. ANNUALMAINTENANCE(OR PERFORMED EVERY SIX MONTHS IN THE CASE OF UNITS IN

CRITICAL APPLICATIONS).......................................................................................................................................46

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1. GENERAL OVERVIEW

1.1. UPS GENERAL DESCRIPTION

These UPS families have the compact construction, with the outer metal frame and the electronic circuits and power components inside. All user accessible elements are placed on the back side, while the control panel – on the front side. The top and side covers can be removed, giving an access to the internal part of the UPS for the service or maintenance purposes. The front side of all units contains the user interface panel useful for monitoring, maintenance and control. The terminal block for the electrical connection to the mains, reserve, load, external batteries, and the main switch, are located on the back side of the unit. The internal batteries are placed in the lower part of the UPS, with an access from front side.

1.1.1. UPS APPLICATIONS

The new UPS family was designed to provide stabilized and filtered power, especially for supplying sophisticated and sensitive electronic devices (i.e. for data processing systems). Alcor and Mizar UPSes can be used to supply electronic systems of medical centers, police stations, motorway tunnels, broadcasting stations, banks, technical and administrative offices, requiring the power source free from voltage and frequency variations.

1.1.2. POWER AND AUTONOMY

Thanks to its modular design, the UPSes are available in two series with rated power from 10kVA to 15kVA (Mizar) and from 20kVA to 40kVA (Alcor). These two families have different power sections, while batteries and cabinet remain the same. Both UPSes can utilize the internal battery block of 60 pcs. of 5, 7.2 or 9Ah batteries. An external battery modules can be used to increase the UPS autonomy.

1.1.3. SAFETY AND SIMPLICITY OF USE

All the UPS elements available for user daily maintenance are insulated and disconnected from hazardous voltages. Control of the overload and excessive temperatures guarantees the immediate and most suitable intervention in the case when one of these conditions occurs during operation. The operator can view the UPS status on the front panel and perform shut down or switching operations easily (see chap. 3 page 19). The unit is provided with the E.P.O. (Emergency Power Off). This function is activated by pressing the button located on the front panel. A remote E.P.O (optional) switch can be connected to UPS to provide remote emergency power off action. The UPS state can be easily monitored with the personal computer and an interacting program (optional) or through the remote panel (optional), especially when the UPS is installed in unmonitored areas. See chap.

1.2.5 - 1.2.6.

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1.2 CONFIGURATION AND OPTIONAL EQUIPMENT

1.2.1. BASE CONFIGURATION

The UPS is available in the following configurations:

Input Output Power Mizar / Alcor Three-phase Input Three-phase Output 10÷15 kVA / 20÷40 kVA Three-phase Input Single-phase Output 10÷15 kVA / 20÷40 kVA Single-phase Input Single-phase Output 10÷15 kVA / 20÷40 kVA

1.2.2. BATTERY CABINET

When the autonomy time provided with the basic configuration is not sufficient, additional optional battery cabinet can be connected to the UPS. The batteries cabinet can contain up to 2 battery blocks of 4.5 – 5 – 7.2 – 9 Ah.

1.2.3. TRANSFORMER CABINET

If a galvanic isolating transformer is required, it can be positioned inside UPS cabinet in the place of the internal batteries - in this case an external battery cabinet is essential.

The standard transformer is three-phase/three-phase (or single-phase/single-phase or three-phase/singlephase) with 1:1 ratio, but it can be supplied with a different transformation ratio upon customer request.

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1.2.4. REMOTE COMMUNICATION CARD

Remote communication board (the code CS0098), gives possibility of monitoring and communicating with UPS. Monitoring can be implemented with the PC and dedicated software or through a remote panel. There are also voltage free contacts available on the terminal board M1 (more info at pages 21-22)

1.2.5. UPS MANAGEMENT SOFTWARE

The “UPS MANAGEMENT” Generex communication software allows interaction between UPS and PC or the network based on Windows, Win-NT, Novell, OS2, Dec, and Linux operating systems. The software is used to monitor and control parameters of one or more UPSes supplying the network (more info at page 23)

CN1

CN3

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1.2.6. REMOTE PANEL

The remote panel is used for remote viewing of the UPS state, it shows the status of the main UPS blocks with LED indicators and the sound signalization in the case of alarm conditions (more info at page 22)

1.2.7. REMOTE E.P.O. PUSH - BUTTON

The remote E.P.O push-button provides the safe, remote way to fast and full disable the unit running in the event of an emergency (more info at page 23)

1.2.8. REMOTE MANUAL BY-PASS

The remote Manual By-Pass is a security system that allows, when closed, to connect directly load to the power line, excluding the UPS (more info at page 24).

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1.3 OPERATING PRINCIPLE

INGRESSO

USCITA UPS

PASS MANUALE

MODULO

The UPS described here is an on-line dual conversion type UPS with automatic by-pass in compliance with European standard EN62040-1-2. This UPS performs a dual conversion of the incoming voltage continuously and without interruption. The absence of direct connection between mains and the load provides blocking all voltage and frequency disturbances. The dual conversion guarantees that the output energy is always well regulated and has correct voltage and frequency values, ideal for the operation of professional applications. When the input voltage exceeds the allowed range or - more frequently - is not present, the load is supplied by converted energy from the batteries. The system is supplied with an automatic by-pass. In the event of a UPS fault or overload, the by-pass connects immediately the load directly to the mains through a reserve line, making possible normal load operation without interruption. See fig. 1.3.1

1.3.1. UPS BLOCK DIAGRAM

INGRESSO RISERVA

BY-

RETE DI RISERVA

RETE PRINCIPALE

PFC

BATTERIA

MODULO INVERTER

1.3.2. INPUT STAGE, POWER MODULE AND OUTPUT STAGE

BY-PASS MANUALE

S.SWITCH

From the input bars the mains are connected via the MAINS INPUT l1 switch to the power module. The rectifier regulates the DC voltage to a reference value, charging continuously the battery. Then the DC voltage supplies the inverter, which feeds the load with regulated sinusoidal voltage (phase and amplitude controlled). In normal operating conditions, the static switch (providing energy to the load) selects the inverter as the voltage source; in the case of fault or overload, the UPS output is redirected to the reserve line. This operation allows providing the energy to the load. When the cause of the alarm disappears, the static switch automatically selects the inverter to feed the load again.

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1.3.3. LOGIC AND AUXILIARY CIRCUITS

The control logic occupies the separate board (0SDE0150) and represents the “intelligence” of the UPS. It manages operations of the step-up converter, inverter and by-pass, based on feedback signals taken from the power module. The control logic also manages the other three boards, i.e. the battery charger, auxiliary power supply and signal interface. The battery charger handles recharging of the outside batteries connected to the UPS. The signal interface receives the signals from the control logic and converts them into the protocol required by the front panel of the UPS and also the relays board. Going backwards, the selected commands from the front panel (automatic by-pass forcing) and/or relay board (EPO) are sent from the signal interface to the control logic which interprets them and performs desired operation – like switch on/off inverter or shuts off the UPS. The auxiliary power supply supplies all the boards and electronic components in the UPS.

1.3.4. BATTERIES

The battery set provides energy to the system when the input mains is out of the allowed range or not present; in all other cases batteries are constantly recharged by the charger module. In this way the batteries are always ready for use when required.

1.3.5. MANUAL BY-PASS

The manual by-pass is useful in the situations, when it is necessary to disable the UPS and keep the load supplied by the mains (i.e.: UPS stopped, fault, etc.). can be activated with using the MANUAL BY-PASS (l3) switch, located in the rear part of the UPS (refer to chapter 4). In normal operating conditions this circuit breaker remains in rest position, protected with the mechanical lock (the padlock).

1.3.6. FRONT PANEL

The UPS can be managed via the front panel. Using the panel it is possible to execute the commands, display states and measurements and reset the alarm circuits. The panel is equipped with an LCD screen used to display the operating status of the UPS, the load and all types of measurement (see chap. 3)

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2. INSTALLATION INSTRUCTIONS

2.1 GENERAL INFORMATION

This chapter describes the system installation procedures and lists the following subjects:

• Reception and identification

• Storage

• UPS positioning

• Room specifications

• Arrangement and connection to mains

• UPS Auxiliary connections

• Earth connection

2.2 RECEPTION AND IDENTIFICATION

After removing the packing, visually inspect (inside and outside) the UPS and battery module (if included) to check for any damage that could occur during shipping. If there is any damage, inform the shipper or retailer immediately. Check the supplied material against the packing slip. The machine has an adhesive identification plate indicating the type, power and serial number; it is located on the rear side of the unit (Fig.2.2)

Fig. 2 . 2

2.3 STORAGE

If the system is not going to be installed immediately it must be stored in an environment with adequate protection against excessive humidity and sources of extreme heat (from +5 to +40°C, humidity less than 95% without condensation).

If the battery module is supplied, also make sure that no more than 6 months pass between one battery recharge and the next. Once this period of time has elapsed, temporarily hook the UPS up to the

mains and run it for the time needed to recharge the batteries.

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2.4 UPS POSITIONING

All dimensions are in millimeters.

The same cabinet is used for both series (MIZAR and ALCOR). The mechanical parameters are described in the following tables:

MIZAR

POWER

(kVA)

10 15

DIMENSIONS

WxDxH (mm)

WEIGHT (Kg)

w/o batteries

WEIGHT (Kg)

with batteries

390x900x900 70 220

Tab. 2.4a

ALCOR

POWER

(kVA)

DIMENSIONS

WxDxH (mm)

WEIGHT (Kg)

w/o batteries

WEIGHT (Kg)

with batteries

20 25 30

390x900x900 80 230

Tab. 2.4b

The weight difference is in the case the batteries are mounted or not in the same UPS cabinet.

For handling you need to remember that the machine, unless special arrangements are made, is shipped and thus handled with the batteries inside, thus you need to refer to the higher weight of the version used. All the connections are located in the rear panel and can be reached just removing the cover as shown in Fig. 2.4

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Fig. 2.4 shows the cover and the external connections.

Metal cover

Fig. 2.4

1. Air cooling grid

2. Communication cards slot (Relay & SNMP)

3. Switches

4. Metal cover

Looking at the back, the cables input is located in the lower side, that it is accessible removing the metal cover (Fig.2.4) For the cables connection according to the UPS configuration refer to fig.2.6c/d/e at pages 17-18.

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2.5 ROOM SPECIFICATIONS

The room where the UPS is installed must be clean; it must have pollution class 2 (CEI) and must be able to dissipate the heat produced by the machine, as shown in table 2.5a.

Table 2.5a

Rated P (kVA) Diss. P (W)

15 750 40

For correct battery ventilation, the room must be able to ensure an exchange of air equal or greater than what is shown in table 2.5b.

Table 2.5b

Air exchange only for battery hydrogen

4.5 Ah batteries 7Ah batteries 9 Ah batteries (60 blocks) (60 blocks) (60 blocks)

-- -- --

Remember that the average life of the batteries is closely correlated with the operating temperature; a temperature of around 20°C is normally recommended. (when the temperature rises above 20°, for each 10° higher the battery life drops by 50%)

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2.6 LAYOUT AND CONNECTION TO THE MAINS

For connection to the mains a layout solution like the one shown in diagram 2.6 is recommended. The circuit breakers B-C-D are magnetothermic type without differential protection, or if this is required, with a triggering current greater than 0.3A, delayed and suitable for load with DC current (type A). Switch A is used as external BY-PASS.

Block diagram 2.6

PANNELLO DI DISTRIBUZIONE

I3 BY-PASS

I2 INPUT RISERVA

RESERVE LINE

I4 USCITA

UPS

Config.: 3 in – 3 out

RETE DI RIS ERVA

PANNELLO DI DISTRIBUZIONE

CARICO

RETE P RINCIPA LE

I1 INPUT MAINS

I3 BY-PASS

I2 INPUT RISERVA

I5 BATTERIA

BATTERIE INTERNE

UPS

RESERVE LINE

I4 USCITA

Config.: 1 in – 1 out

CARICO

RETE DI RISER VA

RETE P RINCIPA LE

I1 INPUT MAINS

I5 BATTERIA

BATTERIE INTERNE

PANNELLO DI DISTRIBUZIONE

RETE DI RIS ERVA

I3 BY-PASS

CARICO

RETE P RINCIPA LE

I2 INPUT RISERVA

I1 INPUT MAINS

RESERVE LINE

I4 USCITA

I5 BATTERIA

BATTERIE INTERNE

UPS

Config.: 3 in – 1 out

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The control parts and all the power connections of the UPS in question need to be able to permanently support the current shown in tab. 2.6 (three-phase/three-phase) or in tab. 2.7 (three-phase/single-phase) or in tab.2.8 (single-phase/single-phase)

UPS power

(kVA)

Mains input

Imax (A)

Reserve input

Imax (A)

User outputs

Imax (A)

Battery discharge

10 20 15.2 15.2 13.4 15 20 22.8 22.8 20 20 60 30.3 30.3 27 25 60 38 38 33.4 30 60 45.5 45.5 40 40 60 60.7 60.7 53

UPS power

(kVA)

Mains input

Imax (A)

Reserve input

Imax (A)

User outputs

Imax (A)

Battery discharge

10 20 46 46 13.4 15 20 68 68 20 20 60 91 91 27 25 60 114 114 33.4 30 60 137 137 40 40 60 182 182 53

UPS power

(kVA)

Mains input

Imax (A)

Reserve input

Imax (A)

User outputs

Imax (A)

Battery discharge

10 60 46 46 13.4 15 60 68 68 20 20 180 91 91 27 25 180 114 114 33.4 30 180 137 137 40 40 180 182 182 53

current (A)

Table 2.6

current (A)

Table 2.7

current (A)

Table 2.8

ATTENTION!

In addition to the circuit breaker and protection it is advisable to set up an appropriate

change-over contact on the input side outside the ups to protect against voltage returns as

indicated in table 2.6/2.7/2.8 and the following drawing

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If necessary, a system against voltage return needs to be created in the UPS distribution panel as shown in diagram 2.6b

A: general mains circuit breaker / switch C: automatic switch or at least a fuse for the mains B: automatic switch or at least a fuse for the reserve network K3: protection contactor against return voltage K1-K2: additional relays on the change-over contact coil supply

DISTRIBUTION PANEL

A B

NEUT

UPS

K2K1

L1-RESERVE

L2-RESERVE

L3-RESERVE

NEUTRAL

L1-MAINS

L2-MAINS

L3-MAINS

NEUTRAL

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ATTENTION!

Before connecting the ups make sure the lines that connect the ups mains and reserve inputs to the distribution

panel are open and disconnected make sure that the battery panel switch is open.

put warning signs on the distribution panel and battery panel to prevent accidental actions.

Remove connetcion*

REAR UPS

Figure 2.6c

GND L1 L2 L3 N L1 L2 L3 N L1 L2 L3 N + N - GND

INPUT INPUT OUTPUT UPS BATTERY MAINS RESERVE

(use only with

Separate reserve*)

Figure 2.6c: UPS terminal block in three phase/three phase configuration. *Remove cables to separate input mains from reserve.

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Remove connection*

EUTRAL

REAR UPS

Figure 2.6d

GND PHASE N PHASE N PHASE N + N - GND

INPUT INPUT OUTPUT UPS BATTERY MAINS RESERVE

(use only with

Separate reserve*)

Figure 2.6d: UPS terminal block in single phase/single phase configuration. *Remove cables to separate input mains from reserve.

REAR UPS

Figure 2.6e1

GND L1 L2 L3 N PHASE N + N - GND

INPUT MAINS OUTPUT MAINS BATTERY

Figure 2.6e1: UPS terminal block in three phase/single phase configuration.

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REAR UPS

GND L1 L2 L3 N PHASE N PHASE N + N - GND

INPUT INPUT OUTPUT UPS BATTERY MAINS RESERVE

Figure 2.6e2: UPS terminal block in three phase/single phase configuration (Whit input and reserve separate).

If not required, the UPS is supplied with mains and reserve line in parallel (Fig.2.6c). It is possible to separate them by removing the connecting bars.

Before connecting the UPS it is necessary to:

- make sure that the mains voltage and frequency match those indicated on the adhesive plate located on the rear side of the UPS (input voltage, operating frequency, etc.);

- make sure that the earth connection of the system fully complies with the requirements of IEC standards or local laws.

After that install four pole circuit breakers upstream and downstream from the UPS with the following specifications:

- rating equal or greater than what is indicated on the label on the UPS rear (kVA);

- specifications in compliance with IEC standards or local laws for “Curve C” circuit breakers.

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2.7 UPS AUXILIARY CONNECTIONS

The communication boards are mounted in the rear UPS section. The standard equipment is composed of the remote communication board (CS0098) and set-up for the SNMP board. Access for the connections to these devices is located on the rear part of the UPS (fig.2.7a)

Fig. 2.7a

Remote communication board (CS0098) SNMP board

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2.7.1. REMOTE COMMUNICATION BOARD

Ext EPO or Ext BY

PASS

Remote communication board is used to allow connection between the UPS and external devices. The board has a series of voltage free contact terminals (M1) which can be connected to a dedicated synoptic panel (chap. 2.7.2), acoustic or visual warning devices or remote signaling systems. One or more remote EPO buttons (chap. 2-7-4) or a remote by-pass switch (chap. 2.7.5) can be connected via the other two contacts (CN1). Lastly, it is possible to connect the system to a PC via a DB9 (CN3) connector and use the specific software (chap. 2.7.3)

Fig. 2.7.1a

Battery Low

Mains not present

Load on reserve

Inverter Run

Fig. 2.7.1b

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2.7.2. REMOTE PANEL (Optional)

Remote panel is connected to the UPS via the terminal board M1 located on the remote communication board (CS0098)(connection diagram fig. 2.7.2a). This device is used for remote monitoring of the main UPS blocks, the status of the main blocks is represented through LED, and there is also an acoustic alarm, which can be shut off with key 5.

LED description :

1) Green ON UPS LED If it’s on, the UPS is operating correctly If it’s off, indicates that one or more inverter section alarms are present (acoustic alarm enabled)

2)Yellow ON BATTERY LED If it’s on, the UPS is operating on battery (acoustic alarm enabled)

3) Red LOW BATTERY LED If it’s on, indicates imminent end of battery discharge (acoustic alarm enabled)

4) Yellow ON BYPASS LED If it’s on, indicates load supplied from reserve (acoustic alarm enabled)

5) ALARM SILENCE key Used to switch off the acoustic alarm

6) Green LED If it’s on, indicates correct power supply connected to the panel

DB9

5 9 4 8 3 7 2 6 1

Male Connector

2 1

12V-12A

CS0098 Relay Board

9 6

2-5-8-11

NOTE:

ON CS0098 COMMON TAGBLOCKS (2-5-8-11) MUST BE CONNECTED TOGETHER

UPS REMOTE PANEL

1 2 3 4 5

12 11 10

9 8 7 6 5 4 3 2 1

Fig. 2.7.2b

UPS Remote

Panel

Battery LOW

Ups ON

On By-Pass

Mains Status

Common

5 6 7 8

EXT SUPPLY

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2.7.3. UPS MANAGEMENT SOFTWARE

This software is used to monitor the conditions of the UPS whit PC connected to the system by the supplied cable. For more information on the installation and use of the software see the user manual which came with it.

2.7.4. REMOTE E.P.O. BUTTON

Particular attention must be paid to the external connection of buttons or actuators for the EPO function (emergency stop). This connection is composed of a series of normally-closed switches (Fig.2.7.4) which open the series if commanded, generating the stop of the UPS with the consequent and irreversible interruption of voltage to the load. The series of external EPO buttons must be connected to the CN1 terminal board of the relay board CS0098*. The remote communication card must be configured as described in fig. 2.7.4 If there are no external EPO contacts to the system jumper JP1 must be closed. (circle in fig.2.7.4) The default configuration (with any ext. E.P.O connected) has the connector CN1 shortened with a wire connection, it must be removed (as well as the jumper JP1), when one or more E.P.O. ext. is connected to the board

*If is required to enable the EPO remote on the optional communication card is necessary contact the service.

JP1: Open

JP2: Open JP3: Closed

Fig. 2.7.4

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2.7.5. REMOTE MANUAL BY-PASS

The remote Manual By-Pass is a security system that allows, when closed, to connect directly load to the power line, excluding the UPS. The remote Manual By-Pass system is composed by a power switch for connect reserve line whit load, and a N.C. contact (fig. 2.7.5) that opens when commanded. This contact must be connected to CN1 of CS0098**. The remote communication card must be configured as described in fig. 2.7.5 If there are no remote by-pass to the system jumper JP1 must be closed. (circle in fig.2.7.5) The default configuration (with any remote by-pass connected) has the connector CN1 shortened with a wire connection.

**If is required to enable the EPO remote on the optional communication card is necessary contact the service. During the feeding of loads through external bypass is not guaranteed the uninterrupted supply of electric current.

Fig. 2.7.5

2.7.6. EARTH CONNECTION

The earth input cable must be connected to the earth terminal of the UPS and must be always the first cable to be connected. It is advisable to insert an appropriate antioxidant between the earth bar and lug to

keep the accurate contact over time.

All of the cabinets and accessories must be earthed in accordance with local regulations.

ATTENTION!

Inadequate earth connection may cause a risk of electrical shock

to personnel or of fire

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3 CONTROL PANEL

3.1. INTRODUCTION

The control panel is located on the upper front part of the UPS, and it’s used for easily check the general status of the UPS and batteries and related alarms. The panel contains an LCD screen (which indicates the operating status, measurements and alarms of the UPS) and the red EPO button located at the left of the display. The display panel shows text messages and operating parameters on an LCD screen with 4 lines and 20 characters per line. The screens are organized in 6 multi-level menus, which can be selected using the membrane buttons under the LCD display.

Figure 3.1a

Two LEDs are present on the left side of the display, a green one called “NORMAL” and a red one called “ALARM”. The actions of the LED are summarized in table 3.1a.

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STATUS UPS OK Alarm present Alarm stopped

GREEN LED On Off On

RED LED Off On Flashing **

**Configurable (paragraph 3.2.4 )

3.2. LCD CONTROL PANEL

Table 3.1a

Figure 3.2

ESC PUSH BUTTON

To switch off the buzzer

MENU’ PUSH BUTTON

To return to the previous menu or to enter into main menu from the alarm display

BACK PUSH BUTTON NEXT PUSH BUTTON

To scroll among the menu and the sub menu.

Pressing them both at the same gives

ENTER command

During normal UPS operation the control panel uses a series of messages to display the operating status of the single component blocks of the system, thus the operator is informed in real time (also with sound signal) of any faults occurred in the system.

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Table 3.2 summarizes the list of available menus.

MENU N° NOTES

UPS STATUS AND ALARMS 1 This is default content of the LCD screen. System returns

to this level automatically when no keys are used for 3 min.

MEASUREMENTS 2 Used to display the values of all the measurements UPS COMMANDS 3 Inverter on / off, static switch, battery test PANEL SETUP 4 Settings for date / time / battery test / language EVENTS RECORDER

5 Displays the log of events and related alarms MANAGEMENT SERVICE MODE 6 Reserved for technical assistance service

Table 3.2

It is possible to scroll among the listed 6 menu in table 3.2 using the NEXT(>) or BACK(<) keys. By pressing the NEXT(>) and BACK(<) keys simultaneously, you select ENTER (< >) and by confirming the selection go to the next menu level. To return to the previous menu level press the MENU key Each alarm indication on the display is followed by a sound signal which can be switched off by pressing ESC (see figure 3.2)

If the operator does not perform any actions for 3 minutes, the “1. UPS STATUS AND ALARMS” menu is automatically displayed.

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3.2.1. MENU 1: UPS STATUS AND ALARMS

This menu is characterized by the first line of the message which can be UPS OPERATING (if the UPS is operating normally) or UPS ALARM (if the UPS has an alarm condition). The meanings of the displayed messages are given below:

UPS IN NORMAL OPERATING CONDITIONS

MESSAGE MEANING

MAINS OK / NOT AVAILABLE The input mains line is on and the voltage is / is not

in the specified range

RESERVE MAINS OK / NOT AVAILABLE The input by-pass supply line is on and the voltage

is / is not in the specified range BATTERY FLOAT CHARGE The battery voltage is within the specified limits INVERTER ON The inverter is on and operating normally INVERTER – RESERVE SYNCHRONIZED / NOT SYNCHRONIZED

Indicates the normal synchronization status

between the inverter and by-pass line LOAD ON INVERTER The load is supplied by the inverter LOAD ON RESERVE The load is supplied by the by-pass line. This may

be a temporary condition which lasts 20 seconds

after short overload UPS MASTER Controls the other UPSes in parallel system UPS SLAVE Controlled by another UPS in parallel system

Table 3.2.1

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3.2.2. UPS IN FAULT CONDITIONS

If the UPS experiences the fault, the normal status message will be replaced with the alarm one. An alarm message will differ depending on the type of fault which occurred. Activated sound signal can be switched off by pressing the ESC key. The ENTER (< >) key can be used to display the list of indications which let the operator to understand the meaning of the alarm. The <BACK or NEXT> keys can be used to scroll through all the active alarms. When the alarm cause disappears, the LCD will return to the default message.

<ENTER>

UPS ALARM

ALARM CAUSE

< BACK or NEXT>

The possible alarms and associated with them help messages are listed below.

ALARM MESSAGE MEANING

INVERTER OFF The load is no longer supplied by the inverter and

subject to any mains failures

INVERTER OVERLOAD The inverter is off due to an overload and the load

is supplied by the reserve network

STATIC SWITCH LOCKED After 3 unsuccessful automatic switching attempts from

the reserve to inverter, the UPS blocks the static switch in the reserve network position

BATTERY FAILURE

BATTERY TEST FAILURE Displayed whenever the periodic test on the battery

fails for any reason

BATTERY PREALARM At the battery voltage of around 640V the UPS warns

the user of a low battery voltage At 600V discharging ends and the UPS goes off

STATIC SWITCH FAILURE At least one of output phases is missing

MANUAL BY-PASS ON The manual bypass switch has been closed

MAINS NOT AVAILABLE The mains is not proper for the UPS specifications,

it might be out of the range allowed by the system, or simply not present

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RESERVE NOT AVAILABLE The reserve is not proper for the UPS specifications,

it might be out of the range allowed by the system, or with incorrect cyclic direction, or not present

UPS EMERGENCY POWER OFF Displayed whenever the E.P.O. button is pressed,

for any reason

BATTERY CHARGER FAILURE Battery charger doesn’t work properly or is not connected

PARALLEL DATA EXCHANGE FAILURE

This alarm occurs when there is not data exchange between UPSes in parallel, for any reason. It may be due to a missing or incorrect connection of one or more parallel fibers

3.2.3. MENU 2: MEASUREMENTS

To access this screen press ENTER on position “2. Measurements” on the main menu. The operator can now check the value of the following electrical measurements by using the arrows < or >:

V in phase – neutral = reserve line Y-voltage V in phase/phase = reserve line voltage between lines Input current = UPS input three phase currents

V out phase/neutral = UPS output Y-voltage Output current = output current at load Battery V,I = battery voltage and current Frequency = UPS output frequency

Temperature = temperature of the power module, input stage, output stage and cabinet Temperature = temperature of the external battery cabinet in order to regulate the battery

voltage according to measured

If the operator does not perform any actions for 3 minutes, the “1. UPS STATUS AND ALARMS” menu is automatically displayed.

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3.2.4. MENU 3: UPS COMMANDS

Using this menu it is possible to have operating control to the UPS

MESSAGE MEANING

3.1 SYSTEM START

3.2 SYSTEM STOP

With these commands, pressing ENTER 's user can turn on or turn off the system

3.3 SWITCH THE LOAD With these commands, pressing ENTER 's user can switch load on inverter or reserve

3.4 START BATTERY TEST With these commands, pressing ENTER 's user can start battery test

3.5 MANUAL COMMANDS*** Through this menu you have access to all power controls on individual blocks of the UPS***

***The menu 3.5 is activated and can be used only by authorized personnel

If the operator does not perform any actions for 3 minutes, the “1. UPS STATUS AND ALARMS” menu is automatically displayed.

3.2.5. MENU 4: PANEL SETUP

MESSAGE MEANING

4.1 DATE SETTING Used to set up the actual date, using the arrows to increase / decrease the numbers

4.2 TIME SETTING Used to set up the actual time, using the arrows to increase / decrease the numbers

4.3 PANEL LANGUAGE

Used to select the display language available languages

SETTING

4.4 ALARMS SETUP It allows the user to select the possibility to hide or show a recorded alarm until the ESC button is pushed

4.5 BATTERY TEST

SETTING

If the operator does not perform any actions for 3 minutes, the “1. UPS STATUS AND ALARMS” menu is automatically displayed.

Used to set the periodic battery test, selecting the day of the week, the number of weeks between the tests and the time of day to start the test

3.2.6. MENU 5: EVENTS RECORDER MANAGEMENT

In this menu the user can see last 1023 events / alarms in chronological order. The event log display can be opened by selecting 5. EVENT LOG in the main menu. The screen will show the date and time of the last event that occurred. It is possible to scroll the list using the buttons <BACK or NEXT> In all positions on the event list, pressing MENU causes the return of the display to the MAIN MENU.

If the operator does not perform any actions for 3 minutes, the “1. UPS STATUS AND ALARMS” menu is automatically displayed.

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3.2.7. MENU 6: SERVICE MODE

Entering into this menu the user can change UPS rated data, reset the EPO, reset event log, identify the software and hardware version, set-up the start-up of the UPS from normal to automatic and back. This menu is password protected to prevent unauthorized access.

If the operator does not perform any actions for 3 minutes, the “1. UPS STATUS AND ALARMS” menu is automatically displayed.

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4. INSTRUCTIONS FOR USING THE UPS

IMPORTANT

Please carefully follow the below procedures to avoid damages to

the system.

ATTENZION

The UPS cannot start from battery

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4.1. INTRODUCTION

This chapter describes how to correctly use the system. The UPS may be in one of the following operating conditions:

• Normal operation - The load is supplied by the UPS. The UPS is in normal operation and uses mains to supply energy to the load and charge the batteries. This mode guarantees complete uninterrupted power passed to the load. Operation with internal automatic by-pass – The load is supplied by the mains In the event of an inverter fault and/or overload, the power to the load is provided by the reserve line. This mode does not guarantee complete uninterrupted power passed to the load.

• Operation with maintenance manual by-pass enabled – The UPS is disabled. The load is connected directly to the mains through the maintenance or emergency manual by-pass line. This mode does not guarantee complete uninterrupted power passed to the load.

• Battery operation - The load is supplied by the UPS. The UPS is in normal operation and uses the battery to supply energy to the load because the mains voltage is out of the allowed range. This mode guarantees complete uninterrupted power passed to the load.

4.2. POWER SWITCHES

The system maintenance elements are located behind the front doors, installed horizontally and described in order from left to right side (refer to the fig. 4.3):

MAINS INPUT SWITCH (I1): connects the UPS to the mains voltage.

RESERVE INPUT SWITCH (I2): connects the UPS to the reserve line voltage.

MANUAL BYPASS SWITCH (I3): allows disconnecting the entire UPS and providing mains supply to the

load. This switch is protected with the small padlock to avoid accidental use.

UPS OUTPUT SWITCH (l4): connects the UPS to the load.

Above has been described UPS switches. There are also battery breakers, placed inside battery module

and in every external battery module

ATTENTION !

To completely isolate the unit from hazardous voltages it is necessary

to open also the battery switch, which is not present on the UPS.

Also remember about the presence of potentially charged capacitors inside the converter

It means that you must wait for at least 10 min. before accessing to the internal parts of the UPS.

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Follow the below steps to correctly switch on the UPS:

ATTENTION !

The switches in down position means that the circuit is OPEN The switches in up position means that the circuit is CLOSED

The figure 4.3 presents all the switches in OFF position.

INPUT

MAINS

INPUT

RESERVE

MANUAL

BY-PASS

ATTENTION !

All the operations described below can be executed by

authorized electrician or qualified personnel only

OUTPUT

UPS

BATTERY

NEUTRAL

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4.3. UPS START-UP CONFIGURATION

This UPS can be configured in two different start-up mode, the first is “AUTOMATIC” and the second is “NORMAL”.

The default configuration of the UPS is “AUTOMATIC”

(see chapter 3.2.8)

The two configuration have the following characteristics: _ AUTOMATIC mode (standard) This mode initiate a start-up sequential totally automatic of all UPS block. A scroll bar on the LCD display will show the percentage of advance of the start-up. After the wizard on the display you can read the message “AUTOSTART PROCESS FINISHED” and a green LED switch-on on the control panel.

_ NORMAL mode (optional) This mode initiate a start-up sequential fully automatic from Precharge to the input stadium to ensure a proper battery charger. The manual activation by the operator of the inverter stadium complete the start-up procedure, at the end you will display the message “AUTOSTART PROCESS FINISHED” and a green LED switch-on on the control panel.

For proper UPS start-up follow the procedure described below.

ATTENTION!

If for any reason should stop the start-up procedure, is necessary perform the “3.2 SYSTEM STOP”

command through the “menu 3. UPS COMMAND”

The start-up sequence will be immediately suspended and the LCD panel displays the message

“AUTOSTART PROCESS INTERRUPTED”

If it is necessary to restart the UPS must use the “3.1 SYSTEM START” command in” menu 3. UPS

COMMAND” or shut down complete the UPS and repeat the start-up as described in the below procedure

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4.4. INSTRUCTION FOR SYSTEM START-UP IN “AUTOMATIC” MODE (Standard configuration)

For the switches explanations refer to the fig. 4.3

1. Close the INPUT RESERVE (l2) switch

The LCD panel and all UPS logic boards will begin normal operation. If the reserve line voltage parameters are correct, the UPS fans will switch on.

2. Close the UPS OUTPUT (l4) switch

The load connected to the UPS output will be supplied with the power provided by the reserve line.

3. Close the MAINS INPUT (l1) switch

After 5” will start an automatic start-up procedure and on the LCD display will show the percentage of advance. At the end will show the 2° message: ”AUTOSTART PROCESS FINISHED” and a green LED switchon on the control panel. In the event of anomaly on LCD displays the message “AUTOSTART PROCESS FAILED” and the control panel remain on the red light. In this situation don’t proceed whit the start-up and call the service.

4. Battery connection

After checking the correct polarity of the batteries close the battery panel switch on battery cabinet. It makes the connection between the batteries and the UPS circuits.

The system makes an automatic battery test 2 minutes after the message ”AUTOSTART PROCESS FINISHED” is shown on the display LCD. In case of anomaly an alarm message “BATTERY TEST FAILED” will be displayed and the red light on the control panel will remain on; in this situation check the battery voltage and connection then execute a manual battery test again (as described in a chapter 3.2.4)

At this point the unit is in normal operating mode, and guarantees uninterrupted power supply to the load.

It is suggested to simulate the short power failure to check the correct operation of the entire UPS / battery system. To perform this operation just open and then close the mains switch powering the UPS.

ATTENTION!

If for any reason should stop the start-up procedure, is necessary perform the “3.2 SYSTEM STOP”

command through the “menu 3. UPS COMMAND”

The start-up sequence will be immediately suspended and the LCD panel displays the message

“AUTOSTART PROCESS INTERRUPTED”

If it is necessary to restart the UPS must use the “3.1 SYSTEM START” command in” menu 3. UPS

COMMAND” or shut down complete the UPS and repeat the start-up as described in the below procedure

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4.5. INSTRUCTION FOR SYSTEM START-UP IN “NORMAL” MODE (Optonal configuration)

For the switches details refer to the fig. 4.3

1. Close the INPUT RESERVE (l2) switch

The LCD panel and all UPS logic boards will begin normal operation. If the reserve line voltage parameters are correct, the UPS fans will switch on. On the control panel the red indicator will appear.

2. Close the UPS OUTPUT (l4) switch

The load connected to the UPS output will be supplied with the power provided by the reserve line. On the control panel the red indicator remains on.

3. Close the MAINS INPUT (l1) switch

After 5 seconds the automatic start-up procedure will be started and the LCD display will show ”Autostart process activated” message, and later - the percentage of process advance. At the process end UPS will show message: ”Autostart process finished” and on the control panel the red indicator will remain on. In the event of anomaly on LCD displays the message “Autostart process failed” and on the control panel the red indicator remains on. In this situation don’t proceed with the start-up and call the service.

4. Battery connection

After checking the correct polarity of the batteries close the battery panel switch on battery cabinet. It makes the connection between the batteries and the UPS circuits.

5. Switch on the inverter

To complete the start-up procedure, enter into “3. UPS COMMANDS” of the menu, choose and confirm “3.1 SYSTEM START”. The inverter will be activated and after 20 seconds automatically switch the load on it (if the UPS is configured to POWER SAVE, the load remains on reserve line). At the end of procedure on the LCD panel displays the message “Autostart process finished” and the green indicator on the control panel will appear.

At this point the unit is in normal operating mode, and guarantees uninterrupted power supply to the load.

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ATTENTION!

If for any reason should stop the start-up procedure, is necessary perform the “3.2 SYSTEM STOP”

command through the “menu 3. UPS COMMAND”

The start-up sequence will be immediately suspended and the LCD panel displays the message

“AUTOSTART PROCESS INTERRUPTED”

If it is necessary to restart the UPS must use the “3.1 SYSTEM START” command in” menu 3. UPS

COMMAND” or shut down complete the UPS and repeat the start-up as described in the below procedure

4.6. INSTRUCTIONS FOR COMPLETE SHUTDOWN OF THE UPS

For the switches explanations refer to the fig. 4.3

1. UPS Shutdown

Enter in the “menu 3. UPS COMMANDS” and confirm “3.2 SYSTEM STOP” Will start an automatic shutdown procedure and on the LCD display will show the percentage of advance. At the end will show the 2° message: ”System stop done” and on the control panel will be a red LED light From this moment the load is supplied directly from the reserve network.

2. Disconnect the battery

Open the battery switch on the battery cabinet

3. Open switches

Open in sequence, MAINS INPUT SWITCH (I1), the OUTPUT SWITCH (I4) and finally RESERVE INPUT SWITCH (I2). At this moment the UPS is completely isolated and load is not powered.

ATTENTION!

At this point the load is supplied directly by the reserve network

and inside the UPS there are not hazardous voltages, except of the compartment

(covered with metal panel) where the input and output cables are connected,

and - for few minutes - inverter DC and AC capacitors (also covered with metal panel).

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4.7. INSTRUCTIONS FOR SWITCHING SYSTEM TO MANUAL BY-PASS MODE

For the switches details refer to the fig. 4.3

1. Disconnect the battery

Open the battery switch on the battery cabinet

2. Switch load on reserve line (skip this step if the UPS is configured to POWER SAVE)

Enter into “3. UPS COMMANDS” of the menu, choose and confirm “3.3 SWITCH THE LOAD”. The red indicator will appear on the control panel and the sound will be audible. Since this moment the load is supplied directly from the reserve line.

3. UPS Shutdown

Enter into “3. UPS COMMANDS” of the menu, choose and confirm “3.2 SYSTEM STOP”. An automatic shutdown procedure will start and the LCD display will show percentage of it's advance. When the procedure finishes, the message ”System stop done” will be displayed and the red indicator will be present on the control panel.

4. Close MANUAL BY-PASS (I3) switch

Remove the padlock (or any other mechanical safety lock) from the switch and lift the knob to ON position The warning sound will be activated and the LCD screen will display “Manual bypass switch closed”. The red indicator of the control panel will remain on.

5. Open switches

Open in sequence, MAINS INPUT SWITCH (I1), the OUTPUT SWITCH (I4) and finally RESERVE INPUT SWITCH (I2). The load is supplied directly from the reserve line through the manual by-pass.

ATTENTION!

At this point the load is supplied directly by the reserve network

and inside the UPS there are not hazardous voltages, except of the compartment

(covered with metal panel) where the input and output cables are connected,

and - for few minutes - inverter DC and AC capacitors (also covered with metal panel).

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4.8. INSTRUCTIONS FOR RETURN FROM MANUAL BY-PASS MODE TO NORMAL OPERATION

1. Close the INPUT RESERVE (l2) switch

UPS will begin normal operation. If the reserve line voltage parameters are correct, the UPS fans will switch on. On the control panel the red indicator will appear.

2. Close the UPS OUTPUT (l4) switch

On the control panel the red indicator remains on.

3. Open MANUAL BY-PASS (l3) switch

Since this moment load will be supplied from the reserve line. Mount the padlock on the manual by-pass switch (l3). On the control panel the red indicator remains on.

4. Close the MAINS INPUT (l1) switch

After few seconds the start-up procedure will be started. Depending of the UPS start-up configuration setting, refer to one of the following sections:

- see section 4.4 for “AUTOMATIC” Start-up mode: steps 3 - 4

- see section 4.5 for “NORMAL” Start-up mode: steps 3 - 4 - 5

4.9. E.P.O. (EMERGENCY POWER OFF) STOP

The purpose of the emergency stop is to completely shut down the UPS if necessary, with the resulting instant switch off the static switch from both reserve and inverter sources. This eliminates any power presence at the UPS output and - in consequence - at the load. Obviously, hazardous voltages remain inside the UPS panel. To reset EPO mode, the complete UPS shut down procedure is required.

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4.10. MANAGING THE UPS BATTERY

In addition to the battery voltage and current measurements, displayed in menu “2. MEASUREMENTS”, it is also possible to test the battery efficiency without any interruption to the load. In case of battery failure, the message “BATTERY TEST FAILED” will be displayed on the LCD. In this situation call the technical assistance centre.

4.11. BATTERY TEST PROGRAMMING

The battery test can be executed at any time by selecting the menu “3. UPS COMMANDS” and pressing ENTER on “START BATTERY TEST” command. The test lasts about 50 seconds. It is also possible to schedule a periodic battery test following the instructions below:

1. Select the “4. PANEL SETUP” menu and press ENTER

2. Select the “BATTERY TEST SETTING” and press ENTER.

Select, using the arrows, the day of the week to perform the test, the number of weeks between tests (from 1 to 52, [--] means no automatic test) and the time of the day to start the test. Press ENTER to confirm each choice.

After every successfully end of the start-up UPS is executed an automatically battery test, in case of anomaly the system goes in alarm mode (red led light), in this case check the battery and execute again the manual battery test as described above.

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5 UPS IN PARALLEL

5.1 SYSTEM SET-UP

The installation of many UPS in parallel requires creating one or more panels of the single UPS. The type of panel created guarantees different levels of operation based on the complexity of the adopted solution. The typical, normally suggested solution is described below, which guarantee complete operation of the system. (fig.5.1)

Disconnections are included on all the power lines of the single groups, disconnection of the their return line and protection of the batteries. Moreover, it is advisable to set-up a general by-pass for the system, for this purpose implementation of a functional interlocking device is recommended. This interlocking device is necessary to prevent damage to the system

The indicated solution permits all the testing operations in the installation and maintenance phases of the single groups.

The general manual by-pass can be used to isolate the entire system without load supply interruptions.

Standard mains

Standard reserve

INPUT MAINS

BATTERIA

BATTERIE INTERNE

DISTRIBUTION PANEL

BY-PASS

Load

USCITA

BY-PASS

RESER VE LINE

UPS

INPUT RISERVA

INPUT MAINSI2INPUT RISERVAI3BY-PASS

BATTERIA

BATTERIE INTERNE

USCITA

RESER VE LINE

UPS

INPUT MAINSI2INPUT RISERVAI3BY-PASS

BATTERIA

BATTERIE INTERNE

USCITA

RESER VE LINE

UPS

The complexity of the system requires opportune monitoring of the status of each UPS by remote or SNMP see chap. 1.2.4 page 7

For additional information, see the attached technical report DT0367. (only for parallel systems)

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6 TROUBLESHOOTING

6.1. GENERAL ALARMS

In the event of a UPS fault, the default screen will be replaced by one of the alarm messages shown in the table below:

ALARM CAUSE ACTION

INVERTER OFF Initial start-up

Permanent overload

INVERTER OVERLOAD Continuous overload on UPS

output

STATIC SWITCH LOCKED High transient loads on UPS output

3 failed switching attempts on inverter

BATTERY TEST FAILURE Battery test not OK Check the battery

BATTERY PREALARM Battery almost discharged, the

inverter is about to go off MAINS NOT AVAILABLE No mains input Check the mains line voltage RESERVE NOT AVAILABLE The input phase rotation is not

correct.

No input voltage UPS EMERGENCY POWER OFF

PARALLEL DATA EXCHANGE FAILURE

The EPO control has been

activated

The machine is disabled due to

absence of communication

Start the Inverter Check the output Check the output load and restart the inverter Check the output short circuit

Check the output load and restart the inverter

Check the battery fuses Shut down connected non-critical load

Check the line cyclic direction

Check the reserve line voltage. Choose the BYPASS position of the rotary switch and wait until the LCD is completely off and then restart the UPS Call technical assistance

When an UPS experiences the fault which cannot be resolved and it is not able to guarantee uninterrupted power to the load, perform an EMERGENCY BY-PASS and then leave the machine isolated and off. Call the technical assistance.

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6.2. FIRE

In the almost impossible case of fire, remember to only use CO2or powder extinguishers. Always

Tappo Radiatore

activate the emergency BY-PASS and completely shut off the machine, disconnecting the battery panel as well.

6.3. FAULTS RELATED TO THE NATURE OF THE LOAD

Many times normal UPS reactions to the non-standard load or installation environment are incorrectly recognized by the users as the UPS faults. The most common situations are described below:

• The UPS is left with load supplied by the reserve line even if the inverter section is operating correctly: this may occur on excessive absorbed peak current. It causes the major drop-down voltage, which – if is repetitive - leads to the switching load to the reserve line. The system, after three failed attempts to switch and return to the inverter, blocks the static switch on the reserve line to protect the inverter, therefore it is necessary to study the load current and eliminate the causes of the overcurrents.

The repetitive peak current should not exceed 2.5 times the effective value.

• The accuracy of the UPS output voltage is not optimal: this may depend on an excessively unbalanced and/or distorting load.

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7. SCHEDULED MAINTENANCE

The UPS while its lifetime requires scheduled maintenance cycles to maintain operating reliability and efficiency.

Scheduled maintenance must be performed by the company which provided the machine or company specialized and trained on the system by the seller.

7.1. ANNUAL MAINTENANCE (OR PERFORMED EVERY SIX MONTHS IN THE CASE OF UNITS IN CRITICAL APPLICATIONS)

The following actions and tests are performed while the scheduled maintenance:

• cleaning the machine

• cleaning the control logic and interface boards

• checking the tightening of all nuts and bolts and electrical connections (UPS and battery)

• testing the ventilation efficiency

• testing the inverter output wave form

• testing output voltage / frequency

• testing synchronization

• testing signals, alarms and EPO tripping

• display calibration with calibrated instrument

• operating test of manual switches and automatic devices

• operating test of switching circuits

• power failure test of UPS line, battery efficiency test and test of correct battery charger operation.

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R&D – USER MANUAL DT0430-E04

Page 46 of 46

Powertronix Mizar, Alcor User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual