Riello UPS Sentinel Tower STW 5000 User manual

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INTRODUCTION
Congratulations on purchasing a UPS Sentinel Tower product and welcome to Riello UPS! To use the support service offered
by Riello UPS, visit the site www.riello-ups.com
Our Company is a specialist in the design, development and manufacturing of uninterruptible power supplies (UPS).
The UPS described in this manual is a high quality product which has been carefully designed and built in order to guarantee
the highest levels of performance.
This device can be installed by anyone on the condition that they have READ THIS INSTALLTION AND USER MANUAL
CAREFULLY.
The UPS and the Battery Box generate DANGEROUS internal electrical voltages. All maintenance operations must be
carried out by suitably qualified operators.
This manual contains detailed instructions for using and installing the UPS and any additional Battery boxes.
For information on how to use and maximise the performance of your device, please retain this manual and read it
carefully before operating the equipment.
ENVIRONMENTAL PROTECTION
In the development of its products, the company devotes abundant resources to analysing the environmental aspects.
All our products pursue the objectives defined in the environmental management system developed by the company in
compliance with applicable standards.
No hazardous materials such as CFCs, HCFCs or asbestos are used in this product.
When evaluating packaging, the choice of material has been made favouring recyclable materials.
For correct disposal, please separate and identify the type of material of which the packaging is made according to the table
below. Dispose of all material in compliance with applicable standards in the country in which the product is used.
DESCRIPTION MATERIAL
Box Cardboard
Packaging corner Cardboard
Protective bag Polythene
Accessories bag Polythene
Pallet Heat-treated pine
DISPOSING OF THE PRODUCT
The UPS and the Battery Box contain electronic internal material that (in case of dismiss / disposal) are considered TOXIC and
HAZARDOUS WASTE, such as electronic circuit boards and batteries. Treat these materials according to the laws applicable
referring to qualified service personnel. Their proper disposal contributes to respect the environment and human health.
© The reproduction of any part of this manual, in whole or in part, is forbidden without the prior consent of the manufacturer.
In order to make improvements, the manufacturer reserves the right to modify the product described at any moment and without notice.

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CONTENTS
PRESENTATION 6
UPS VIEWS 7
FRONT VIEW 7
REAR VIEW 8
DISPLAY PANEL VIEW 9
BATTERY BOX (OPTIONAL) 10
ADDITIONAL INTERNAL BATTERY CHARGERS (ONLY FOR “ER” VERSIONS) 10
INSTALLATION 11
INITIAL CONTENT CHECK 11
REMOVAL OF THE UPS (OR BATTERY BOX)FROM THE PALLET 12
INSTALLATION ENVIRONMENT 14
UPS PLACEMENT (OR BATTERY BOX) 14
POWER CONNECTION 15
INSTRUCTIONS FOR 5–6KVA MODELS 15
INSTRUCTIONS FOR 8–10 KVA MODELS 16
INTERNAL PROTECTIVE DEVICES OF THE UPS 17
EXTERNAL PROTECTIVE DEVICES 18
CONNECTION CABLES CROSS SECTION DETAILS 18
CONNECTIONS 19
WIRING DIAGRAMS FOR CONNECTING TO THE ELECTRICAL SYSTEM 20
BATTERY BOX INSTALLATION 21
CONFIGURING THE RATED BATTERY CAPACITY 21
USE 22
SWITCHING ON FOR THE FIRST TIME 22
SWITCHING ON FROM THE MAINS 22
SWITCHING ON FROM THE BATTERY 22
SWITCHING OFF THE UPS 22
INTERNAL CLOCK SETTING 22
DISPLAY PANEL MESSAGES 23
UPS STATUS MESSAGES 23
MEASUREMENT DISPLAY AREA 24
OPERATING MODE CONFIGURATION 25
POSSIBLE SETTINGS 25

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ADDITIONAL FUNCTIONS 25
REDUNDANT AUXILIARY POWER ADAPTER FOR AUTOMATIC BYPASS 26
EXTERNAL TEMPERATURE PROBE 26
SOFTWARE 27
MONITORING AND CONTROL SOFTWARE 27
CONFIGURATION SOFTWARE 27
UPS CONFIGURATION 28
COMMUNICATION PORTS 30
RS232 CONNECTOR 30
COMMUNICATION SLOT 30
TROUBLESHOOTING 31
STATUS /ALARM CODES 35
TECHNICAL DATA 37

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PRESENTATION
SENTINEL TOWER uses ON-LINE double conversion technology, the best solution for powering mission critical applications
and electro-medical devices requiring maximum power reliability.
Flexibility of installation and use (digital display, user-replaceable battery set), as well as the many communication options
available, makes the SENTINEL TOWER suitable for many different applications from IT to security.
Up to 3 SENTINEL TOWER can be operated in parallel in either capacity or N+1 redundant configuration offering increased
reliability for critical system.
SENTINEL TOWER in the 5000VA and 6000VA versions, was developed to be powered by a single-phase input.
SENTINEL TOWER in the 8000VA and 10000VA versions, was developed to be powered by a three-phase input; when suitably
configured, it can also function with a single-phase input. In the THREE-PHASE connection, the load current will be split
between the three input phases; if the bypass intervenes or in the bypass mode operation, all the load current will be absorbed
by the “L1” input line.
ER series models are fitted with upgraded battery charges for long runtime and business continuity applications. For these
versions, the batteries are housed in separate cabinets.
Example of UPS and UPS + BATTERY BOX

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UPS VIEWS
FRONT VIEW
All models Models 5 – 6 kVA
without front panel
Models 8 – 10 kVA
without front panel
Display panel
Removable front panel
Cooling fan

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REAR VIEW
Models 5 – 6 kVA Models 8 – 10 kVA
Battery expansion connector
EnergyShare sockets (10A max) and overcurrent
protection
Cooling fan Mains input switch (SWIN)
Parallel card (optional) Internal battery fuse holder isolator (SWBATT)
Slot for optional accessory communication
cards and contacts cards Manual bypass switch (SWMB)
USB communication port Output switch (SWOUT)
RS232 Communication port Terminals cover panel
Remote commands terminal

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DISPLAY PANEL VIEW
“ON” button Input phase indicator
“SEL1” button Measurement display area
“SEL2” button Timer
“STAND-BY” button Battery charge indicator
Regular operation Configuration area
Mains operation Maintenance request
Battery operation Load level indicator
Load powered by bypass Parallel mode indicator
Stand-by / alarm EnergyShare

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BATTERY BOX (OPTIONAL)
The BATTERY BOX, with the same dimensions and aesthetic appearance of the UPS, is an optional accessory.
The BATTERY BOX contains batteries which allow the operating time of the uninterruptible power supplies to be increased
during extended blackouts. The number of batteries contained can vary according to the type of UPS for which the BATTERY
BOX is intended. It is therefore necessary to take great care to ensure that the battery voltage of the BATTERY BOX is the
same as the voltage permitted by the UPS.
Several Battery Boxes can be connected in series to achieve a longer extended runtime.
Front view Rear view
Internal battery fuse holder isolator
Battery expansion connector
ADDITIONAL INTERNAL BATTERY CHARGERS (ONLY FOR “ER” VERSIONS)
THE “ER” VERSION OF UPS DIFFERS FROM THE STANDARD VERSION IN THAT ADDITIONAL BATTERY CHARGERS
ARE USED INSTEAD OF THE BATTERIES.
This series of UPS must be used together with an external Battery Box and is suitable for applications requiring long back-up
times.

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INSTALLATION
INITIAL CONTENT CHECK
After opening the packaging, it is first necessary to check the contents.
The package must contain:
UPS (or Battery box) Safety manual + Quick start guide + Download card
USB cable
(only for UPS)
Connection cable UPS - Battery Box
(only for Battery Box)
Battery expansion plug
(ER version only) Fuses

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REMOVAL OF THE UPS (OR BATTERY BOX)FROM THE PALLET
This chapter describes the operations to prepare the UPS (or Battery Box) for installation.
ATTENTION:
For your safety and that of the product, you must carefully follow the instructions given here below.
BEFORE YOU CARRY OUT THE FOLLOWING SEQUENCE OF OPERATIONS, MAKE SURE THAT THE
UPS IS COMPLETELY SWITCHED OFF AND NOT CONNECTED TO THE MAINS POWER SUPPLY OR TO
ANY LOAD.
1. Cut the straps and open the cardboard box.
2. Remove the packaging and the accessory box located
above the UPS.
3. Remove the cardboard box by sliding it
upwards and remove the corner supports.
4. Remove the protective sack.
5. Remove the 4 fixing brackets of the UPS (or Battery Box) on the pallet; each bracket is fixed to the pallet with 2 screws.
FRONT VIEW REAR VIEW

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6. Move the brackets upwards and rotate for releasing them from the retaining bushing.
Follow the instructions below to remove the fixing brackets without releasing the UPS front panel (*).
7. Remove the 4 fixing screws of the
frontal wooden beam of the pallet.
8. Remove the wooden beam, pay
attention to holding stable the UPS
above the pallet during this operation.
9. Guide the UPS towards the front of
the pallet; use the pallet as a chute.
10. Carefully, bring the UPS down from
the pallet towards the floor.
(*) If it will be difficult to remove the brackets, unhook the UPS front panel pulling it from the edges; the front panel is hooked
with a system of pins and springs, tools are not needed.

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INSTALLATION ENVIRONMENT
The UPS and the Battery Box must be installed in ventilated, clean environments which are sheltered from bad weather.
The relative humidity in the environment must not exceed the maximum values shown in the Technical Data table.
The ambient temperature, whilst the UPS is in operation, must remain between 0 and 40°C, and the UPS must not be positioned
in places which are exposed to direct sunlight or to hot air.
The recommended operating temperature for the UPS and the batteries is between 20 and 25°C. The actual
operating life of the batteries is 5 years on average with an operating temperature of 20°C. If the operating
temperature reaches 30°C, the operating life is halved.
This is a category C2 UPS product. In a residential environment, this product may cause radio interference, in
which case the user may be required to take additional measures.
For three-phase installation, this equipment complies with IEC 61000-3-12 provided that the short-circuit power
Ssc is greater than or equal to 2.94MW (7.4kA) at the interface point between the user's supply and the public
system. It is responsibility of the installer or the user to ensure that the equipment is connected to a supply with
the adequate short-circuit power Ssc (if required, consult the distribution network operator).
If the supply doesn’t meet the above requirements or if the requirements listed above are difficult to obtain, a
single-phase installation is suggested.
UPS PLACEMENT (OR BATTERY BOX)
When installing the equipment, the following points should be considered:
the wheels are to be used exclusively for fine positioning, and thus for small distances only.
the plastic parts and the front panel are not to be used for gripping or pushing the UPS.
enough space should be left in front of the equipment for it to be turned on/off and maintenance operations to be
performed on it (1.5 m)
the rear part of the UPS should be set at least 30 cm from the wall, to enable the air blown by the ventilation fans to
flow away correctly
no objects should be left on its top surface

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POWER CONNECTION
ALL OPERATIONS DESCRIBED IN THIS SECTION MUST BE PERFORMED BY QUALIFIED PERSONNEL
ONLY. Our Company assumes no liability for damages caused by incorrect connections or operations
not contained in this manual.
The UPS has HAZARDOUS electrical voltages inside it, even when the input and/or battery switches are
off. The inside of the UPS is protected by safety panels which should not be removed by untrained
personnel. All installation and maintenance or operations involving access inside the UPS require the
use of tools and may ONLY be performed by trained personnel.
To carry out the following operations, the UPS must be disconnected from the mains power supply,
switched off, and with all the equipment switches and fuse holders open.
INSTRUCTIONS FOR 5–6KVA MODELS
Follow the instruction below to access the terminals of the UPS and made the electrical connections:
1. Remove the terminals cover in the back of the UPS,
placed below the disconnector switches (see "UPS
VIEWS")
2. Using a nipper or a small hammer, remove the pre-
cut slots (placed in the bottom part of the terminals
cover) and apply on them the protections plastic
edges (supplied as standard).
3. We recommend using double-insulated multi-core
cables to be connected, respectively, to the
“INPUT”, “OUTPUT” and “BYPASS” terminals (if
present).
4. For the cross section and the cable stripping, refer
to the paragraph "CONNECTION CABLES CROSS
SECTION DETAILS
5. The wires should be stripped and inserted into the
terminals (for the length of the stripping, refer to the
paragraph “CONNECTION CABLES CROSS SECTION
DETAILS”).
NOTE: To remove the wire, insert a flat blade
screwdriver into the clamp slot above the wire inlet.
6. Fix the cables to the ties block in the back of the
UPS.
7. When the installation is complete, close the
terminals cover and secure with the screws
Option with cable glands (not supplied):
Cable glands (not supplied) can be used to secure the cables. The cable
glands will be mounted in place of the pre-cut holes in the terminal cover
panel. For the removal of the pre-cut disks it will be necessary to use a tool
such as nippers or a small hammer.

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INSTRUCTIONS FOR 8–10 KVA MODELS
Follow the instruction below to access the terminals of the UPS and made the electrical connections:
1. Remove the terminals cover in the back of the
UPS, placed below the disconnector switches
(see "UPS VIEWS")
2. Pierce the rubber grommets to allow the wires
passing.
3. We recommend using double-insulated multi-
core cables to be connected, respectively, to
the “INPUT”, “OUTPUT” and “BYPASS”
terminals (if present).
4. For the cross section and the cable stripping,
refer to the paragraph "CONNECTION CABLES
CROSS SECTION DETAILS”.
5. The wires should be stripped and inserted into
the terminals (for the length of the stripping,
refer to the paragraph “CONNECTION CABLES
CROSS SECTION DETAILS”).
NOTE: To remove the wire, insert a flat blade
screwdriver into the clamp slot above the wire
inlet.
6. Fix the cables to the ties block in the back of the
UPS.
7. When the installation is complete, close the
terminals cover and secure with the screws
Option with cable glands (not supplied):
Cable glands (not supplied) can be used to secure the cables. The cable glands will be mounted in place of the rubber
grommets in the terminal cover panel (see picture Option 1). Alternatively, remove the pre-cut flanges and mount the cable
glands in the slots (see picture Option 2).
Option 1 Option 2

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INTERNAL PROTECTIVE DEVICES OF THE UPS
Located within the UPS are fuses (not accessible) in order to protect the rectifier input stage, the output stage of the inverter
and the batteries. The table below shows the values of the internal protection fuses.
NOTE: the UPS internal bypass line is not protected by fuses. We recommend installing an external protection device as
defined in the chapter “EXTERNAL PROTECTION DEVICES”.
Internal protective devices
UPS Mod. Input fuses Battery fuses Output fuses
5 kVA 2 x 25A GF (6.3x32) 80A aR 2 x 25A GF (6.3x32)
6 kVA 2 x 25A GF (6.3x32) 80A aR 2 x 25A GF (6.3x32)
8 kVA 80A aR [L1]
25A GF (6.3x32) [L2/L3] 80A aR 63A aR
10 kVA 80A aR [L1]
25A GF (6.3x32) [L2/L3] 80A aR 63A aR
SHORT CIRCUIT
If a fault occurs on the load, the UPS protects itself by limiting the value and the duration of the current supplied (short circuit
current). These values also depend on the UPS operating status at the time of the fault, these can either be (in the "TECHNICAL
DATA” table the protection characteristics and timings are described):
UPS in NORMAL OPERATION: the load is switched instantaneously to the bypass line: the input line is connected to
the output without any internal protection.
UPS in BATTERY OPERATION: the UPS protects itself by providing a higher current than the nominal one (see
paragraph “TECHNICAL DATA”) and turns itself off after this time has elapsed.
BACKFEED
The UPS has internal protection against backfeed.

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EXTERNAL PROTECTIVE DEVICES
LINE PROTECTION: MAGNETOTHERMAL OR FUSE
Within the UPS there are protection devices for output and internal faults.
You must protect the input line (and the separate bypass line if present) with the appropriate protection devices. These devices
must comply with the regulations of the country where the UPS is installed.
In order to set up the power line, install a magnetothermal switch upstream from the UPS with intervention curve C or D or gR
type fuse. Please follow the indications in the table below:
Automatic external protective devices
UPS Mod.
Mains input
Single-phase input (P+N) Three-phase input (3P+N)
5 kVA 40A /
6 kVA 40A /
8 kVA 63A 63A
10 kVA 63A 63A
SAFETY DEVICES: DIFFERENTIAL
The differential switch located upstream must have the following characteristics:
Differential current adjusted to the sum of UPS + Load; we recommend a suitable margin be kept to prevent unwanted
activation.
Differential type B.
CONNECTION CABLES CROSS SECTION DETAILS
To determine the minimum cross section of the input and output cables, see the table below:
Cross section of cables (sqmm) *
UPS Mod.
INPUT OUTPUT
N L1 L2 L3 N L
5 kVA 6 / 6
6 kVA 6 / 6
8 kVA 10 (16 max) 2.5 (16 max) 10 (16 max)
10 kVA 10 (16 max) 2.5 (16 max) 10 (16 max)
* The cross sections indicated in the table refer to a maximum length of 10 meters.
The L2 and L3 inputs are only available only for 8-10 kVA models.
The cable cross-sections for the L2 and L3 lines can be reduced to 2.5 sqmm.
For 8–10 kVA models, the cross-section refers to bare cables (without lugs).
Note: the length of the cable stripping must be equal to:
- 15 mm for UPS 5-6 kVA
- 18 mm for UPS 8-10 kVA

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CONNECTIONS
The first wire to be connected is the protective earth wire, which is to be inserted in the terminal
marked PE. During operation the UPS must be connected to the earthing system
Connect the input and output cables to the terminal board as shown in the figure below:
Models 5-6 kVA
Models 8-10 kV
A
FOR CONNECTION TO A THRE
E
-
PHASE LINE WITH NEUTRAL, CONNECT THE THREE PHASES AND THE
INPUT NEUTRAL TO “L1”, “L2”, “L3” AND “N”. MAKE SURE THAT THE SWITCH IS IN POSITION “↑3~”.
FOR CONNECTION TO A SINGLE-PHASE LINE, CONNECT THE LIVE AND THE INPUT NEUTRAL TO “L1”
AND “N”. SET THE SWITCH TO POSITION “↓1~”. TERMINALS L2 AND L3 MUST REMAIN FREE.
NOTE
1. If an "external manual bypass" is not provided, make sure that there is a jumper between terminals 1 - 2 (Switch bypass).
2. The maximum cross section of the cables that may be inserted in the terminal board 1, 2, 3 & 4 are:
- 2.5 sqmm for bare cables
- 1.5 sqmm for cables with lugs.
The stripping length is 8 mm

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WIRING DIAGRAMS FOR CONNECTING TO THE ELECTRICAL SYSTEM
UPS without any variation in neutral condition
UPS with galvanic isolation at input
UPS with galvanic isolation at output