INFOSEC M4T User manual

User Manual
10 - 80 kVA

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GENERAL INDEX
1 INTRODUCTION .............................................................................................................................. 4
1.1 Using this manual ............................................................................................................................ 4
1.2 Symbols and conventions.................................................................................................................. 4
1.3 For further information and/or help ................................................................................................... 4
1.4 Safety and first aid........................................................................................................................... 4
2 QUALITY AND STANDARD GUARANTEE.......................................................................................... 5
2.1 Standard ......................................................................................................................................... 5
2.2 Environment.................................................................................................................................... 5
3 PRESENTATION............................................................................................................................... 6
3.1 Views.............................................................................................................................................. 6
3.1.1 Equipment.............................................................................................................................. 6
3.1.2 Diagram keys........................................................................................................................ 10
3.2 Definition and structure. ................................................................................................................. 11
3.2.1 Structural diagram................................................................................................................. 11
3.3 Operating principle......................................................................................................................... 12
3.3.1 Normal operation, ()........................................................................................................... 12
3.3.2 Operation with mains failure, ()............................................................................................ 12
3.3.3 Operation with inverter not active, (). .................................................................................. 12
3.3.4 Operation in manual bypass, ()........................................................................................... 12
4 INSTALLATION.............................................................................................................................. 13
4.1 Important safety instructions. ......................................................................................................... 13
4.1.1 Batteries............................................................................................................................... 13
4.1.2 Account access. .................................................................................................................... 14
4.2 Equipment Reception. .................................................................................................................... 16
4.2.1 Unpacking and content checking............................................................................................. 16
4.2.2 Storage. ............................................................................................................................... 16
4.2.3 Transport to location. ............................................................................................................ 17
4.2.4 Location. .............................................................................................................................. 17
4.3 Connections................................................................................................................................... 17
4.3.1 Mains terminals (X1 to X4). .................................................................................................... 17
4.3.2 Independent static bypass line connection, terminals (X14 to X17). Only in versions M4T-B......... 18
4.3.3 Output, terminals (X6 to X9). ................................................................................................. 19
4.3.4 UPS connection to each in-cabinet battery pack, terminals (X11, X12, X23) & (X47, X48, X49)..... 19
4.3.5 Main protective earthing terminal ( ) & protective earth bonding terminal ( ). ......................... 20
4.3.6 COM port to relay. Connector (X32). ....................................................................................... 21
4.3.7 Port COM RS-232 & RS-485. Connector (X32).......................................................................... 21
4.3.8 EPO terminals (X50). ............................................................................................................. 22
5 OPERATION................................................................................................................................... 23
5.1 Start up......................................................................................................................................... 23
5.1.1 Control before start up. ......................................................................................................... 23
5.1.2 Start up procedure. ............................................................................................................... 23
5.2 Complete UPS shutdown................................................................................................................. 25
5.3 Emergency power off (EPO) operation. ............................................................................................ 25
5.4 Bypass manual switch (MAINTENANCE). .......................................................................................... 26
5.4.1 Operating principle. ............................................................................................................... 26
5.4.2 Transfer to maintenance bypass. ............................................................................................ 26
5.4.3 Transfer to normal operation.................................................................................................. 26

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6 CONTROL PANEL AND DISPLAY DESCRIPTION............................................................................ 27
6.1 Control panel parts......................................................................................................................... 27
6.2 Basic functions of keyboard from overview....................................................................................... 27
6.2.1 Message menus and classification in submenus........................................................................ 28
6.3 Screen description.......................................................................................................................... 29
6.3.1 Main level (screen menu 0.0). See Fig. 30. .............................................................................. 29
6.3.2 ‘‘UNIT CONTROL & STATUS” Level (screen menu 1.0). See Fig. 31............................................ 30
6.3.3 ‘‘MEASURES’’ level (screen menu 2.0). See Fig. 32. .................................................................. 31
6.3.4 ‘‘PARAMETERS’’ level (screen menu 3.0). See Fig. 33. .............................................................. 33
6.3.5 ‘‘ALARMS’’ level (screen menu 4.0). See Fig. 34. ...................................................................... 34
6.3.6 ‘‘DATA LOGGER’’ level (screen menu 5.0). See Fig. 35. ............................................................. 40
6.3.7 ‘‘CONFIGURATION’’ level (screen menu 6.0). See Fig. 36.......................................................... 41
6.3.8 Rated values screens (screen menu 7.0). See Fig. 37. .............................................................. 41
7 Maintenance, warranty and service.............................................................................................. 42
7.1 Basic maintenance guide. ............................................................................................................... 42
7.1.1 Battery fuses. ....................................................................................................................... 42
7.1.2 Batteries............................................................................................................................... 42
7.1.3 Fans..................................................................................................................................... 42
7.1.4 Capacitors. ........................................................................................................................... 42
7.2 Warranty conditions. ...................................................................................................................... 42
7.2.1 Product covered. ................................................................................................................... 42
7.2.2 Not included in the scope of supply......................................................................................... 42
8 APPENDICES ................................................................................................................................. 43
8.1 GENERAL TECHNICAL SPECIFICATIONS........................................................................................... 43
8.2 Glossary. ....................................................................................................................................... 44
8.3 Safety Instructions ......................................................................................................................... 46
8.3.1 TO PROVIDE FOR. ......................................................................................................... 46
8.3.2 GENERAL SAFETY INSTRUCTIONS. .................................................................................. 46
8.3.3 SAFETY INTERACTIONS FOR BATTERY EQUIPPED PRODUCTS. .......................................... 47
8.3.4 SAFETY INSTRUCTIONS REGARDING THE BATTERIES....................................................... 48

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1INTRODUCTION
The equipment described hereafter can cause considerable physical damage if incorrectly handled. This is why,
the installation, maintenance and/or repair of this equipment must be done by our staff or specifically
authorised technicians.
According to our policy of continuous improvement, we reserve the right to modify the specifications, in part or
in whole, without prior warning.
All reproduction or third party concession of this manual is prohibited without prior written authorisation from
our firm.
1.1 Using this manual
The purpose of this manual is to explain the installation and operating procedures. This manual must be read
carefully before installing and operating the equipment. Keep this manual for future reference.
This equipment must be installed by qualified staff and, with the simple advice in this manual, can be
used by personnel without any specific training.
1.2 Symbols and conventions
”Warning” symbol.
Carefully read the indicated paragraph and take the stated preventive measures.
”Danger of electrical discharge” symbol. Pay special attention to it, in terms of both the indication
on the equipment and the paragraph referred to in this user manual.
”Main protective earthing terminal” symbol. Connect the earth cable from the installation to this
terminal.
”Earth bonding terminal”. Connect the earth cable from the installation to this
terminal.
“Information” symbol. Additional topics that complement the basic procedures.
UPS devices belong to the electronic and electrical equipment category. At the end of their useful
life they must be disposed of separately and in an appropriate manner.
This symbol is also affixed to the batteries supplied with this device, which means they too have to
be taken to the appropriate place at the end of their useful life.
Contact your local recycling or hazardous waste centre for information on proper disposal of the
used battery.
1.3 For further information and/or help
For further information and/or help of the version of your specific unit, refer to our Service and Technical
Support Department.
1.4 Safety and first aid
Together with the equipment and this “User and installation manual” information regarding “Safety instructions”
is provided (see section 8.3). Before installation or commissioning, check that both sets of information are
available; otherwise please request them. As the user you are legally obliged to comply with the “Safety
instructions”. Once read, keep them for future reference.

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2QUALITY AND STANDARD GUARANTEE
2.1 Standard
The M4T UPS series product is designed, manufactured and commercialised in accordance with standard EN
ISO 9001 of Quality Management Systems.
The EC marking is proof of conformity with the EEC Directive (in brackets) in application of the following
standards
-2006/95/EC Low voltage directive.
-2004/108/EC Electromagnetic Compatibility directive (EMC)
In accordance with the specifications of harmonised standards:
-EN-IEC 62040-1. Uninterruptible power supply (UPS).
Part 1-1: General and safety requirements for UPS devices in use in accessible areas by end users.
-EN-IEC 60950-1. IT equipment. Safety.
Part 1: General requirements.
-EN-IEC 62040-2. Uninterruptible power supply (UPS).
Part 2: Requirements for Electromagnetic compatibility (EMC).
-EN-IEC 62040-3. Uninterruptible power supply (UPS).
Part 3: Methods of operation specification and test requirements.
The manufacturer may not be held responsible for any modification of or repair to the product by the customer.
2.2 Environment
UPS devices belong to the electronic and electrical equipment category. At the end of their useful life they must
be disposed of separately and in an appropriate manner.
This symbol is also affixed to the batteries supplied with this device, which means they too have to be taken to
the appropriate place at the end of their useful life.
Contact your local recycling or hazardous waste centre for information on proper disposal of the used battery.

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3PRESENTATION
3.1 Views.
3.1.1 Equipment.
Fig.1.
Cabinet front view for UPS devices up to 20kVA with front door
closed.
Fig.2.
Cabinet front view for UPS devices from 30 to 80kVA with front door
closed.

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Fig.3. Control panel view.
Only in optional version -B (Independent Static Bypass line).
Fig.4.
Cabinet front view for UPS devices up to 20kVA with front door
opened and configuration of three phase input and output.
Fig.5.
Cabinet front view for UPS devices from 30 to 80kVA with front door
opened and configuration of three phase input and output.

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Fig.6. No 1 battery cabinet front view with front door closed. Fig.7. No 1 battery cabinet front view with front door opened.

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Fig.8. No 2 battery cabinet front view with front door closed. Fig.9. No 2 battery cabinet front view with front door opened

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3.1.2 Diagram keys.
Protection and handling components (Q*):
(Q1a) Input circuit breaker or switch according to power of the equipment.
(Q2) Output switch.
(Q3) Battery fuse holder switch with 3 fuses (models up to 40 kVA) or switch (for higher models).
(Q4) Static bypass (Only in optional version -B).
(Q5) Maintenance bypass switch.
(Q8) Battery fuse holder switch 3 fuses, located in the battery cabinet.
Connecting elements (X*):
(X1) Phase input terminal R.
(X2) Phase input terminal S.
(X3) Phase input terminal T.
(X4) Neutral input terminal N.
(X5) Main protection earthing terminal ( ).
(X6) Phase output terminal U.
(X7) Phase output terminal V.
(X8) Phase output terminal W.
(X9) Neutral output terminal N.
(X10) Earth bonding terminal for load(s) and/or battery cabinet ( ).
(X11) Batteries terminal +(Only for external battery model).
(X12) Batteries terminal –(Only for external battery model).
(X14) Phase static bypass terminal R (Only in optional version -B).
(X15) Phase static bypass terminal S (Only in optional version -B).
(X16) Phase static bypass terminal T (Only in optional version -B).
(X17) Neutral static bypass terminal N (Only in optional version -B).
(X23) Batteries terminal N (middle connector, Only for external battery model).
(X31) DB9 connector COM RS-232 and RS-485 ports.
(X32) DB9 connector relay interface.
(X47) Batteries terminal + of external batteries cabinet.
(X48) Batteries terminal – of external batteries cabinet.
(X49) Batteries terminal N (middle tap) of external batteries cabinet.
(X50) Terminals for external EPO.
Keyboard and optical indications control panel (PC):
(LCD) LCD screen.
(ENT) “ENTER” key.
(ESC) “ESC” key.
() Move up key.
() Move down key.
() Move to the right key.
() Move to the left key.
(a) Rectifier Input Voltage OK LED (green).
(b) Output voltage unit from the Bypass LED (orange).
(c) Inverter is working LED (green).
(d) Unit working from batteries -mains failure- LED (red).
(e) General alarm LED (red).
Other abbreviations:
(BL) Mechanical block for manual bypass switch (Q5).
(CL) Lock for cabinet front door.
(PB) Levellers and immobilising components.
(PC) Control panel.
(PF) Cabinet front door.
(PR) Cables passage.
(RD) Scroll wheel.
(RV) Ventilation grate.
(SL) Slot for optional SICRES card.
(TB) Terminal cover.
(TS) Slot cover (SL).
(t1) Attachment screws for terminals cover (TB).
(t2) Attachment screws for mechanical block (BL) and switch (Q5).
(t3) Attachment screws for slot cover SICRES (TS).

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3.2 Definition and structure.
3.2.1 Structural diagram.
Fig.10. M4T block diagram with operating flow.
In equipment with separate bypass line, an isolation transformer must be placed at either or both of
the UPS mains power supply inputs (rectifier input or static bypass), in order to avoid the direct
connection of the neutral terminal with both mains through the internal wiring of the equipment.
This is only applicable if the power supply comes from two different electrical mains, for example:
- Two different electricity companies.
- An electricity company and a generator set, etc.
Fig.11. M4T-B block diagram with operating flow.

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3.3 Operating principle.
The M4T UPS series is a double conversion system AC/DC, DC/AC with a sine wave output that gives safe
protection in extreme power supply conditions (variations in voltage, frequency, electrical noises, blackout and
micro cuts, etc…). Regardless of the type of load to be protected, these devices are designed to ensure a
quality and continuous power supply.
The operation is as follows:
An IGBT three phase rectifier converts the AC voltage into DC by absorbing a pure sinewave current
(THD <2%) and charging batteries at constant current / voltage.
The batteries supply the power needed by the inverter in the event of mains failure.
The basic double conversion structure is complemented by two new functional blocks, the static bypass
commuter switch and the manual bypass commuter switch.
The static bypass commuter switch connects the output load directly to the bypass network in special
circumstances such as overloading or overheating and reconnects it to the Inverter when normal
conditions are restored.
The M4T-B version has separate lines for the Inverter and bypass blocks, thus increasing the safety of
the installation as it allows the use of a second power supply (generator unit, other electricity company,
etc.).
The manual bypass commuter switch isolates the UPS from the mains and from the loads connected to
the output, so that maintenance operations may be performed on the UPS without any need to
interrupt the supply to the loads.
3.3.1 Normal operation, ().
When there is a mains power supply, the rectifier transforms the AC input voltage into DC raising the DC
voltage to a suitable level to supply the inverter and to charge the batteries.
The inverter transforms the voltage of the DC bus into AC, providing a sine wave alternating output, stabilised
in voltage and frequency to supply the loads connected to the output (figures 10 and 11).
3.3.2 Operation with mains failure, ().
In the event of mains failure or should a micro cut occur, the group of batteries supplies the power needed to
supply the inverter.
The inverter continues working normally without being affected by the lack of mains and the back-up time of
the device depends only on the capacity of the group of batteries (figures 10 and 11).
When the battery voltage reaches the end of back-up time, the control blocks the output to protect against
deep battery discharge.
When mains is restored and after the first seconds of analysis, the UPS again operates as described in the
“Normal operation” section.
3.3.3 Operation with inverter not active, ().
The inverter is inactive due to the existence of alarm conditions such as overloads, overheating, end of back-up
time, etc. In this case the rectifier continues charging the batteries to maintain the optimal charge.
The inverter is also inactive if the unit has not been started up with the keyboard. In that case, the rectifier will
be inactive.
In all these cases the output voltage of the UPS is supplied by the emergency bypass line through the static
bypass commuter switch (figures 10 and 11), provided that the EPO is inactive
3.3.4 Operation in manual bypass, ().
When maintenance checks are to be performed on the device, it may be disconnected from the mains without
any need to cut the power supply to the system and affect the critical load. The UPS may only be worked on by
technical or maintenance personnel, by means of the maintenance bypass (as per specific instructions for that
purpose).

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4INSTALLATION
Check the Safety Instructions.
Make sure that the data on the characteristics plate are those required for the installation.
Any incorrect connection or handling may cause damage to the UPS and/or the loads connected to it. Read
these instructions carefully and follow the steps in the order indicated.
Reference is made in this manual to terminal connections, the use of switches or devices with extended back-
up times that are only available in the M4T-B version. Omit all references to these if your device does not have
them.
This UPS must be installed by qualified staff but can be used by personal with without any specific preparation
aside from this “User Guide”.
4.1 Important Safety Instructions.
As this is a device with class I protection against electric shocks, it is essential to install a protective earth
conductor (earth connection ()). Connect the conductor to the terminal (X5), before connecting the power
supply to the UPS input.
All connections to the device, including those for control (interface, remote control, etc.), will be performed with
the switches in the off position and without any mains present (UPS power line cut off “Off”).
It should always be remembered that the UPS is a generator of electrical power, so users must take all
necessary precautions against direct or indirect contact.
Warning labels should be placed on all primary power switches installed in places that are not in the vicinity of
the device to alert the electrical maintenance personnel of the presence of a UPS in the circuit.
The label will bear the following or an equivalent text:
Before working on this circuit.
- Isolate the Uninterruptible Power Supply (UPS).
-Then check for Hazardous Voltage between all terminals including the protective earth.
Risk of Voltage Back feed
When the power supply reaches the UPS input with static bypass included or with an independent static bypass
line, although the inverter is “Off” (shut-down), it does not mean there is no output voltage at the output
terminals.
To do this, (Q1a), (Q4) and (Q2) must be switched to the “Off” position.
The UPS may be supplying output voltage from the manual bypass which must be taken into account for safety
purposes. If the output power supply of the UPS has to be interrupted in this situation, deactivate the switch
(Q5).
Precautions must be taken for devices with battery terminals, as they are not isolated from the alternating input
line, and there could be dangerous voltage between the battery terminals and the ground.
4.1.1 Batteries.
Batteries should be handled and connected or supervised by personnel with battery knowledge.
For units requested without batteries, the batteries will always acquired, installed and connected by the
customer and under his responsibility. The battery details (number, capacity and voltage) are indicated on the
battery label pasted beside the nameplate of the equipment. These requirements should be strictly adhered to
as well as the battery polarity connection and the circuit diagram provided with this documentation.
The battery supply may involve the risk of electric shock and may produce high short circuit current. Please
observe the following preventive measures before manipulating any terminal block identified on the label as
“Battery”:

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Disconnect the corresponding protection components.
When connecting a battery cabinet to the equipment, the cable’s polarity and colour (red-positive;
black-negative) indicated in the manual and in the corresponding labelling must be adhered to.
Wear rubber gloves and shoes.
Use tools with insulated handles.
Remove watches, rings or other metal objects.
Do not place metal tools or objects on the batteries.
Never handle with your bare hands or through conducting objects as this may short-circuit the battery
terminal block or the battery enclosure.
Never short-circuit the battery terminals as it involves high risk and will be detrimental to the equipment
and batteries.
Avoid mechanical stress and impacts.
Do not open or mutilate the battery. Released electrolyte is harmful to the skin and eyes.
Do not dispose of batteries in a fire. The batteries may explode.
In the event parts of the body come into contact with battery acid, wash immediately with plenty of water
and call the nearest medical service as soon as possible.
Batteries involve a serious risk for health and the environment.
They should be disposed of according to current laws.
4.1.2 Account access.
All the UPS devices in the M4T series and battery packs have terminals as power connection parts, and DB9
connectors for the communication channel, located inside the equipment. Follow the steps described below to
access them:
Unlock the lock (CL) with the special key provided.
Rotate clockwise by 45º and open the frontal door (PF) completely. The DB9 connectors from
communication ports and terminals for remote EPO button are now accessible.
Remove the screws (t1), which fastening the terminal cover (TB) inside the cabinet and move it away;
the power terminals will now be accessible.
Model. Equipment
power
(kVA)
Maximum input and bypass current, and nominal output current (A)
3x380 V 3x400 V 3x415 V
Input Output Bypass Input Output Bypass
Input Output Bypass
M4T-10 10 15 15 - 14 14 - 13 13 -
M4T-15 15 22 23 - 21 22 - 20 21 -
M4T-20 20 30 30 - 28 29 - 28 28 -
M4T-30 30 44 45 - 43 43 - 40 41 -
M4T-40 40 59 61 - 57 58 - 53 55 -
M4T-50 50 74 76 - 71 72 - 67 68 -
M4T-60 60 89 91 - 85 87 - 80 82 -
M4T-80 80 118 122 - 113 116 - 107 110 -
M4T-10-B 10 15 15 15 14 14 14 13 13 13
M4T-15-B 15 22 23 23 21 22 22 20 21 21
M4T-20-B 20 30 30 30 28 29 29 28 28 28
M4T-30-B 30 44 45 45 43 43 43 40 41 41
M4T-40-B 40 59 61 61 57 58 58 53 55 55
M4T-50-B 50 74 76 76 71 72 72 67 68 68
M4T-60-B 60 89 91 91 85 87 87 80 82 82
M4T-80-B 80 118 122 122 113 116 116 107 110 110
Table 1. Input, output and bypass currents for a standard three phase voltage UPS.

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Once the UPS is connected, replace the cover (TB) and close the door (PF) with the lock (CL).
The cable cross section of the bypass, input and output lines shall be determined from the maximum
currents for the first two and from nominal ones for the output, by respecting the local and/or country Low
Voltage Electro-technical standards.
To calculate the cross cable sections, take the figures of the current given in tables 1 or depending on the
model, single or three phase configuration and nominal voltage value of the UPS.
The equipment nameplate only gives the nominal currents as stated in safety standard EN-IEC 62040-1.
The protections in the distribution board will have the following characteristics:
For the input and bypass lines, type B earth leakage breakers and curve C circuit breakers.
For the output (supply loads), curve C circuit breaker.
If input, output or bypass peripherals such as transformers or autotransformers are added to the UPS,
currents stated on the nameplates of those components have to be taken into account, in order to use the
suitable cross sections, by complying with the Local and/or National Low Voltage Electro-technical
Regulations.
When a piece of equipment has a galvanic isolation transformer, as standard, as an option or installed by
the end user, at the UPS input, bypass, output line or in all locations, they have to be fitted with protections
against indirect contacts (earth leakage breaker) at the output of each transformer, because its own
isolation feature will impede the tripping of protections installed at the primary winding of the transformer
in case there is an electric shock in the secondary winding (isolation transformer output).
May we remind you that all isolation transformers supplied or installed from factory have the neutral cable
connected to the ground through a cable bridge between the neutral and ground terminals. If you require
an isolated output neutral, please remove this bridge, taking the stated precautions to comply with local
and/or national low voltage standards.
The supplied cable passages fitted to the metal structure are those recommended to correctly attach the
input, output and bypass wires with the sections determined by the National Low Voltage Electro-technical
Regulation in accordance with the currents of the device.
If these sections have to be changed for any reason, it should be done from a separate distribution box and the
sections indicated should be maintained from the device to the distribution box.
In standard equipment up to 40 kVA, batteries are supplied inside the UPS enclosure and for higher power
rates; they are supplied in a separate cabinet. By default, the UPS has a battery fuse-holder switch (Q3)
with 3 fuses for models up to 40 kVA or battery switch (Q3) for models with higher power rate. The battery
cabinet has a fuse holder switch (Q8) with 3 fuses, for both models with a higher power rate of 40 kVA and
for extended back up times. In any case, fuses are supplied together with the documentation. Open fuse
holder switch (Q3) or (Q8), install the 3 fuses and WAIT until it is indicated before CLOSING IT.
IMPORTANT FOR YOUR SAFETY: Do not turn the battery fuse holder switch (Q3) or (Q8) located in the
battery cabinet to “On” (Close), until the equipment is switched on completely because it may cause
irreversible damage to the equipment or accidents.

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4.2 Equipment Reception.
4.2.1 Unpacking and content checking.
On receiving the device, make sure that it has not suffered any damage during transportation. Otherwise,
make all pertinent claims to your supplier or to our company. Also check that the data on the nameplate,
which is affixed inside the front door (PF), corresponds to those specified in the purchase order, to do this,
you will need to unpack it. In the event of non-conformity please give notification as soon as possible
quoting the device manufacturing number and references of the delivery remittance.
When the device has been accepted, it is best to repack the UPS until it is commissioned in order to protect
it from any knocks, dust, dirt, etc....
The packaging of the device consists of a wooden pallet, a cardboard or wooden surround depending on
the case, expanded polystyrene corner pieces, polyethylene sleeve and band, all recyclable materials; they
should therefore be disposed of according to current regulations. We recommend that the packaging is kept
for future use.
To unpack, cut the bands on the cardboard surround and remove it from above as if it is an cover or
remove it with the necessary tools if the surround is made of wood; remove the corner pieces and the
plastic sleeve. The UPS will be unpacked on the pallet, to lower it suitable equipment must be used with the
required safety equipment; the approximate weights of table 7 and 8 must be considered.
Fig.12. Front view UPS location Fig.13. Top view UPS location.
4.2.2 Storage.
The equipment will be stored in a dry, well-ventilated place and protected against rain, water jets or
chemical agents. It is advisable to keep the equipment and the battery pack(s) in their original package
which has been designed to assure maximum protection during transport and storage.
Except special cases the UPS has sealed airtight, lead-calcium batteries and should not be stored for more
than 12 months (see the date the batteries were last charged on the label affixed to the device packaging
or on the battery cabinet).
After this time, connect the device to the mains along with the battery pack(s), as the case may be. Start it
up as per the instructions given in this manual and charge the batteries for 2 hours from float level.

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Then shutdown the device, disconnect it and keep the UPS and the battery cabinet(s) in their original
packaging, noting the new battery charge date on the respective labels.
Do not store the unit where the ambient temperature exceeds 40ºC or falls below -20ºC, as this may
deteriorate the electrical characteristics of the batteries.
4.2.3 Transport to location.
All UPS devices have castors to facilitate their transport to their final location. It is important to abide by the
approximate weight requirements indicated in tables 5 and 6 both with respect to the site itself and the
installation means (floor, hoist, lift, stairs, etc.).
4.2.4 Location.
The Safety Instructions indicate that a minimum of 25cm clearance should be left around the equipment for
ventilation purposes. However an additional 75 cm is recommended to facilitate maintenance operations or
technical assistance in the event of breakdown (see figures 12 and 13).
The UPS may be put in any place as long as the Safety Instruction requirements are fulfilled and the weight
requirements indicated in table 7 and 8 are complied with.
The UPS includes 2 levelling components (PB) located near the front castors, which immobilise the unit
once in place.
Open the front door (PF) of the cabinet and proceed as follows:
- Lower the feet (PB) by hand by turning them anticlockwise until they touch the floor, and then, using
a spanner, continue loosening until the castors are raised off the floor by a maximum of 0.5 cm,
ensuring that it is level.
-Close the door (PF).
4.3 Connections.
4.3.1 Mains terminals (X1 to X4).
As this is a device with class I protection against electric shocks, it is essential to install a protective
earth conductor (earth connection ( )). Connect the conductor to the terminal (X5), before connecting the
power supply to the UPS input.
In accordance with safety standard EN-IEC 62040-1, the installation has to be provided with a “Backfeed
protection” system.
For example a contactor, which will prevent the appearance of voltage or dangerous energy in the input mains
during a mains fault (see figure 14 and comply with the “Backfeed protection” wiring diagram if the equipment
has single or three phase input)
There can be no bypass in the line that goes from the “Backfeed protection” to the UPS, as this would
infringe on standard safety requirements.
Warning labels should be placed on all primary power switches installed in places that are not in the vicinity of
the device to alert the electrical maintenance personnel of the presence of a UPS in the circuit.
The label will bear the following or an equivalent text:
Before working on this circuit :
- Isolate the Uninterruptible Power Supply (UPS).
- Then check for Hazardous Voltage between all terminals including the protective earth.
Risk of Voltage Backfeed.

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Fig.14. Block diagram for the “Backfeed protection” application, for three phase input / three phase output configuration.
Mains three phase:
Connect the power supply cables N-R-S-T to the input terminals (X4), (X1), (X2) and (X3), adhering to the
order of neutral and phases indicated on the label of the device and in this manual. If the order of the
phases is not adhered to, the device will not operate.
When there are discrepancies between the labelling and the instructions of this manual, the label will always
prevail.
Independent static bypass line connection, terminals
4.3.2 Independent static bypass line connection, terminals (X14 to X17). Only in versions M4T-B.
As this is a device with class I protection against electric shocks, it is essential to install a protective
earth conductor (earth connection ( )). Connect the conductor to the terminal (X5), before connecting the
power supply to the UPS input.
In accordance with safety standard EN-IEC 62040-1, the installation has to be provided with a “Backfeed
protection” system, such as a contactor, which will prevent the appearance of voltage or dangerous energy
in the input mains during a mains fault (see figure 14 and comply with the wiring diagram of “Backfeed
protection” if the equipment has single or three phase input).
There can be no bypass in the line that goes from the “Backfeed protection” to the UPS, as this would
infringe on standard safety requirements.
Warning labels should be placed on all primary power switches installed in places that are not in the vicinity
of the device to alert the electrical maintenance personnel of the presence of a UPS in the circuit.
The label will bear the following or an equivalent text:
Before working on this circuit.
- Isolate the Uninterruptible Power Supply (UPS).
- Then check for Hazardous Voltage between all terminals including the protective earth.
Risk of Voltage Backfeed.
Connect the static bypass line cables to the respective terminals according to the configuration of the
available equipment.

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Three phase static bypass line:
Connect the power supply cables N-R-S-T to the static bypass line terminals (X17), (X14), (X15) and (X16),
adhering to the order of neutral and phases indicated on the label of the device and in this manual. If the
order of the phases is not adhered to, the device will not operate.
When there are discrepancies between the labelling and the instructions of this manual, the label will always
prevail.
When there are discrepancies between the labelling and the instructions of this manual, the label will always
prevail.
In equipment with a separate bypass line, an isolation transformer must be placed at either or both of the
UPS mains power supply inputs (rectifier input or static bypass), in order to avoid the direct connection of the
neutral terminal with both mains through the internal wiring of the equipment.
This is only applicable if the power supply comes from two different electrical mains, for example:
- Two different electricity companies.
-- An electricity company and a generator set, etc.
4.3.3 Output, terminals (X6 to X9).
As this is a device with class I protection against electric shocks, it is essential to install a protective
earth conductor (earth connection ( )). Connect the conductor to the terminal (X5), before connecting the
power supply to the UPS input.
Connect the output cables to the respective terminals according to configuration of the available
equipment.
Three phase output:
Connect the load cables N-U-V-W to the output terminals (X9), (X6), (X7) and (X8), adhering to the order of
neutral and phases indicated on the label of the device and in this manual. If the order of the phases is not
adhered to, the device will not operate.
When there are discrepancies between the labelling and the instructions of this manual, the label will always
prevail.
With respect to the compulsory protection on the UPS output, we recommend that the output power should
be distributed in at least four lines. Each has a magnetic thermal protection switch with a value equivalent
to a quarter of the nominal power. This type of power distribution means that only the faulty line will be
affected in the event of a breakdown in any of the machines connected to the device resulting in a short
circuit. The rest of the connected loads will have their continuity ensured due to the triggering of the
protection, only the line affected by the short circuit will remain.
4.3.4 UPS connection to each in-cabinet battery pack, terminals (X11, X12, X23) & (X47, X48,
X49).
As this is a device with class I protection against electric shocks, it is essential to install a protective
earth conductor (earth connection ( )). Connect the conductor to the terminal (X5), before connecting the
power supply to the UPS input.
IMPORTANT FOR YOUR SAFETY: Do not turn the battery fuse holder switch (Q3) or (Q8) located in the
battery cabinet to “On” (Close), until the equipment is switched on completely, it may cause irreversible
damage to the equipment or accidents because the fitter is exposed to ELECTRICAL DISCHARGE DANGERS
when connecting the UPS with the battery cabinet.
The UPS with battery pack will be connected to the supplied cable trunk line, by connecting one side to
terminals (X11), (X23) and (X12) of the UPS and the other to terminals (X47), (X49) and (X48) of the
battery pack, while adhering to the stated polarity on the labelling of each part and in this manual, and the
colour of the cables (red for positive, black for negative, blue for middle tap (N) and green-yellow for earth
bonding), see figure 15.

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Keep in mind that if more than one battery pack is supplied, the connection will always be in parallel with
the equipment. For instance, the black cable from the UPS negative terminal to the negative of the first
battery pack and from this one to the negative of the second battery pack, and so on. Please, proceed in
the same way for red cable for positive, blue for half tap (N) and green-yellow for earthing.
Electrical discharge danger. If after starting up the UPS, the battery cabinet needs to be
disconnected, the equipment has to be completely shutdown (see section 5.2). Turn off the battery fuse
holder switch (Q8) located in the battery cabinet and/or fuse holder switch or switch (Q3) located in the
UPS. Wait at least 5 min. until the filter capacitors have been discharged.
4.3.5 Main protective earthing terminal ( ) & protective earth bonding terminal ( ).
As this is a device with class I protection against electric shocks, it is essential to install a protective
earth conductor (earth connection ( )). Connect the conductor to the terminal (X5), before connecting the
power supply to the UPS input.
Make sure that all the loads connected to the UPS are only connected to the protective earth bonding
terminal ( ). The fact that the earthing of the load(s) and/or the battery case(s) or cabinet(s) is not
restricted to this single point will create return loops to earth which will affect the quality of the power
supplied.
All of the terminals identified as protective earth bonding ( ), are joined together and to the main
protective earthing terminal ( ) and to the frame of the device.
UPS Battery cabinet No. 1 Battery cabinet No. 2
Fig.15. Connection example between a UPS and two battery cabinets.