nextys NUPS12 User manual

NUPSxx Series
Instruction Manual
NUPSxx Series V5.0
www.nextys.com
Page 1/5
NUPS12 and NUPS24 – Battery Charger and DC UPS module
Main Features:
Accessory for the charging of a 12 or 24 Vdc battery
Suitable for power supplies with adjustable output
To be used with Lead acid batteries ONLY
Allows to feed the load and to charge the battery at once
Built-in battery protection fuse
“Low battery” cut-off system
INDEX
Page
Installation Requirements
2
Declaration of Conformity
2
User Instructions
3
Connections
4
Dimensions
4
Distances
4
Mounting
4
Dismounting
5
Input Connections
5
Environment
5
Accessory Device
5

NUPSxx Series
Instruction Manual
NUPSxx Series V5.0
www.nextys.com
Page 2/5
READ THIS CAREFULLY BEFORE INSTALLATION!
LEGGERE ATTENTAMENTE PRIMA
DELL’INSTALLAZIONE!
A LIRE ATTENTIVEMENT AVANT L’INSTALLATION!
Before operating, read this document thoroughly and retain
it for future reference.
Non-respect of these instructions may reduce
performances and safety of the devices and cause danger
for people and property.
The products must be installed, operated, serviced and
maintained by qualified personnel in compliance with
applicable standards and regulations.
Don’t open the device, it does not contain replaceable
components, the tripping of the internal fuse (ifincluded) is
caused by an internal failure.
Don’t repair or modify the device, if malfunction or failure
should occur during operation, send unit to the factory for
inspection. No responsibility is assumed by Nextys SA for
any consequences deriving from theuse of this material.
Prima dell’installazione, leggere attentamente questo
documento istruzioni e conservarle per future consultazioni.
L’inosservanza delle presentiistruzioni può compromettere le
caratteristiche e la sicurezza dell’apparecchio e causare
pericolo per le persone e le cose.
Il prodotto deve essere installato, utilizzato e riparato da
personale qualificato e nel rispetto delle normative vigenti.
Non aprire ilprodotto, esso non contiene componenti sostituibili,
il guasto del fusibile interno (se previsto) è causato da un
guasto interno. Non tentare di riparare o modificare il prodotto,
se durante ilfunzionamento si verificano guasti o anomalie,
inviarlo al produttore per il controllo.
Nextys SA non siassume nessuna responsabilità per
qualunque conseguenza derivante dall’uso diquesto materiale.
Lisez ces instructions avant l'installation, conservez ce
manuel pour référence future.
Défaut de se conformer à ces instructions peutaffecter les
caractéristiques et la sécurité du dispositif de danger et de
causer aux personnes ou aux biens.
Les produits doivent être installés, exploité et entretenus par
personnel qualifié et en conformité avec les règlements.
N'ouvrez pas le produit, il ne contient aucune pièce réparable,
le déclenchement du fusible interne (le cas échéant) est
causé par un défaut interne. Ne pas essayer de réparer ou
modifier le produit ; si des défaillances se produisent pendant
le fonctionnement ou les dysfonctionnements,le retourner au
fabricant pour inspection. Nextys SA n'assume aucune
responsabilité des conséquences éventuelles découlant de
l'utilisation des produits.
CAUTION
ATTENZIONE
AVVERTISSEMENT
RISK OF BURNS, EXPLOSION, FIRE, ELECTRICAL
SHOCK, PERSONAL INJURY.
Never carry out work on live parts! Danger of fatal injury!
The product’s enclosure may be hot, allow time for cooling
product before touching it. Do not allow liquids or foreign
objects to enterinto the products.
To avoid sparks, do not connect or disconnect the device
before having previously turned-off input power and wait for
internal capacitors discharge (minimum 1 minute).
RISCHIO USTIONI, ESPLOSIONE, INCENDIO, SCOSSA,
LESIONI GRAVI.
Non effettuare mai operazioni sulle parti sotto tensione! Pericolo
di lesioni letali! Il contenitore può scottare, lasciar quindi
raffreddare il dispositivo prima ditoccarlo. Non farentrare liquidi
o oggetti estranei nel dispositivo.
Per evitare scintille, non collegare o scollegare
l'apparecchiatura prima di avere tolto tensione di ingresso e
prima che sia avvenuta la scarica dei condensatoriinterni (min.
1 minuto).
RISQUE DE BRULURES, EXPLOSION, INCENDIE,
ELECTROCUTION, DOMMAGE AUX PERSONNES.
Ne jamais effectuerdes opérations sur les parties sous
tension! Danger de mort! Le récipient peut produire des
brulures, le laisser refroidir avant de toucher l'appareil. Ne
faites pas pénétrerdes liquides ou des corps étrangers dans
l'appareil. Pour éviter des étincelles, ne pas connecter ou
déconnecter l'équipement jusqu'àce que vous avez supprimé
la tension d'entrée et avant qu'elle n'ait lieu de décharge des
condensateurs internes (minimum 1 minute).
DECLARATION OF CONFORMITY
NEXTYS SA.
Via Luserte Sud 6, 6572 Quartino - Switzerland
Phone: [phone]; Fax: [phone]
E-mail: [email protected]om
This Declaration ofConformity is suitableto the European Standard EN45014 "General criteria for supplier’s declaration of conformity".
We declare underour sole responsibility that the device included in this box,has passed all processing inspections and the final test and it is in conformity with the product
requirements, including all reference codes and supply specifications.
ROHS compliance: the product respects the EC requirements related to ROHS substances, according to “Restriction of Hazardous Substances” as per document 2011/65/UE
REACH compliance: theproduct respects the EC requirements related to REACH SVHC directive (2015)
Note: all the reported information comesfrom our suppliers, NEXTYS SA. has not runany test to evaluate ifthe specific elementsare present.
All indicated devices are designedaccording to the latestReference standards, if not expressly indicated through the officialdocuments or files, theyhave been tested through
our internal pre-compliance testing. Consult directly on www.nextys.com the reference standards applied to each model.
Code Description
NUPS12 Battery Charger and DC UPS module IN 13 – 15.5Vdc / OUT 10 - 15Vdc 10A
NUPS24 Battery Charger and DC UPS module IN 26 – 28.5Vdc / OUT 20 - 28 Vdc 10A
Certifications and approvals
Reference standards
2014/35/EU (2014) (Low Voltage Directive)
2014/30/EU (2014) (EMC directive)
EN60950-1:2006 /A2:2013 (Safety Standards)
UL508 (Safety Standards)
EN61000-6-2:2005 (Generic immunity standard for industrial environments)
- EN61000-4-2:2008 (Electrostatic discharge immunity test)
- EN61000-4-3:2006 /A2:2010 (Radiated, radio-frequency, electromagnetic field immunity test)
- EN61000-4-4:2012 (Electrical fast transient/burst immunity test)
- EN61000-4-5:2014 (Surge immunity test)
- EN61000-4-11:2004 /A1:2010 (Voltage dips, shortinterruptions and voltage immunity test)
EN61000-6-3:2007 /A1:2011 (Generic emission standard for residential environments)
- EN55022:2010 (CISPR22 - EMC)
- EN55011:2009 /A1:2010 (CISPR11 - EMC)
Date: 25.02.2016
Place: Quartino, Switzerland
The product manager
Marius Ciorica

NUPSxx Series
Instruction Manual
NUPSxx Series V5.0
www.nextys.com
Page 3/5
USER INSTRUCTIONS
1) Description: DIN rail mountable primary switched-mode power supply with 90...264Vac (110…345Vdc) input, suitable for Single phase main line and DC line.
Functions:
Battery +: connection to batteryPLUS
Battery –: connection to battery MINUS
PS OK connector: connection to SPDT contact foroperating status/failure remote alarm (P.S. OK signal)
Load +/-: connection to load PLUS /MINUS
IN +/-: connection to power supply output PLUS /MINUS
Battery fuse: protects the battery and its cables against dangerous over currents. 15A Mini car Blade Fuse factory supplied is the max. allowed value, it
can be replaced witha lower value fuse for a better protection with small batteries.
Note: if the fuse blows and if the module isfed only by the battery and without any voltage connected to IN+, IN– terminals, all LEDs ofthe
module are turnedoff.
Charging circuitry: regulates and controlsbattery charging current. 2A or 4A charging current can be selected (see Fig.7).
It’s recommended to use 2A with battery capacity up to 20Ah and (if a faster charging time isnot required) and 4Acurrent with battery
capacity 20-45Ah max.
PS OK: green LED, when it lights indicates that power supply is OK and that it is feeding the load and keeping battery under charge too.
PS OK off: indicates either that the power supply is turned off for AC mains black-out, or is disconnected form the AC mains, or that its output is
overloaded and thus output is turned off for a short circuit - overload, or that the power supply failed.
LOAD OK: yellow LED, when it lights on indicates that the load receive power, either from the P.S. (PS OK LED On) or from battery (PS OK LED Off).
BATT. OK: green LED, with the power supply turned off or disconnected indicates that the battery is connected and charged.
Attention: with the power supply connected and active BATT. OK is always turned on even if thebattery is not connected.
BATT. LOW: red LED, indicates that the battery is charged, increasing current required by the load and/or increasing the battery discharge.
BATT. LOW LED lights on together with BATT OK, and its light intensity can vary depending on current required by the load, or blink if
loads are switched on / off, due tounavoidable battery voltage variations depending on applied load. When BATT. LOWLED is lit, itis
recommended to safely shut down the load, in order to avoid unexpected power loss.
Failure contact: at 1A/24V SPDT contact switches when the battery startsback-up feed of the load.The remote signal informsthat the system isno more
fed by the DC power supply e.g. fora fuse failure or fora power supply failure, thus giving awarning even if there isnot a general and
visible black-out but only a local failure.
NUPSxx restartafter a long duration black out with low battery. In such condition the module hasdisconnected the batteryfrom the load (to prevent total discharge and thus
battery damage). It can be started up only by feeding IN+, IN – with a 24Vdc source (e.g. the power supply or a battery). By connecting only the discharged battery to
BATT. +/- terminals the module cannotbe restarted. If the module isfeeding the load from the back-up battery and if a short circuit makes the batteryprotection fuse to
blow, the module can be re-started (after fuse replacement)only by first connecting a 24Vdc power source to IN+,IN – terminals.
2) Installation: use DIN-rails according to EN60715. Installation should be made vertically (see Fig.4). Forbetter device stability fix the rail to the wall close to the point where
the device is to be mounted. Inorder to guarantee sufficient convection, we recommend observing a minimum distance to other modules (see Fig.3).
The device isprovided with a thermal protection; a limited air flow can cause the thermal protection tripping. The SMPSautomatically restartsafter cooling.
To get normal operation reduce the temperature ofthe air surrounding the power supply, increase the ventilation or reduce the load (see Fig.8)
3) Connections: the device is equipped with pluggable screw terminals. To avoid sparks, do not connect or disconnect the connectors before having previously turned-off input
power and waited for internal capacitorsdischarge (minimum1 minute).
In order to complywith UL certification, use appropriate copper cables of indicated crosssection, designed for an operating temperaturesof:
60°C for ambient up to 45°C
75°C for ambient up to 60°C
90°C for ambient up to 70°C
Strip the connecting ends of the wiresaccording to the indication and ensure that all strands of a stranded wire enter the terminal connection (see Fig.5)
4) Battery protection: protects the battery and its cables against dangerous over currents. 15A Mini car Blade Fuse factory supplied is the max. allowed value, it can be
replaced with a lower value fuse for abetter protection with small batteries (see Fig.6)
5) DC input connection: connect L terminal to (+) positive pole, N terminal to (-) negative pole and Iterminal toGND. Rated voltage 110...345Vdc.
The device isalso suitable for photovoltaic or wind turbine applications (seeFig.7).
6) Output connection: The device issuitable for SELV and PELV circuitry.
Check Uout before connecting the NUPSxx to the load. With output voltage set to the max. value, the continuous current must not exceed the nominal current 10A max.
7) Protection: the device is protected against
REVERSE battery connection: a red LED indicates that battery is connected with reversed polarity.
Protection diode: it avoids the voltage and current supplied by the battery to circulate through the power supply output circuitry and preventsfailures due to reverse
polarity connection.
Deep discharge battery protection circuit: this circuit disconnects the battery when its voltage drops under DDV voltage, to avoid battery damage.
8) GENERAL INFORMATION ON BATTERIES
Rated voltage: is the voltage thatthe battery can supplyin condition of full charge and rated current. Battery voltage without load is always higher of rated voltage.
Capacity: given inAh (Ampere / hour) measured at 25°C/ 77°F. (e.g. at 10Ah battery can supply 10Afor 1 hour or 1A for 10 hours).
Charging current: isthe current to be applied to charge the battery, usually indicated bythe manufacturer. A charging current higher than specified can damage the battery or
shorten its life, a too low charging current resultsin a too long charging timeand uncompleted or partial charge, thusreduced Ah capacity.
Charging current of sealed lead batteries would never exceed 20% of capacity of the battery. The battery limits by itself the charging current supplied by the battery charger,
depending on its charge status. Only when the battery is completely discharged it’s possible to apply the maximum charging current.
Note: when choosing the capacity of the battery, consider that real capacity indicated by manufacturers can vary compared with rated capacity depending quality and cost,
capacity is always given for new battery at 25°C/77°F, but during battery life it’s capacity decreases due to ageing, even if the battery is not used, so calculate battery capacity
and duration considering the worstoperating conditions.
Discharge voltage: the right charging voltage value is given by the manufacturer; generally the voltage/current source must be capable to supply a voltage 10-15% higher than
rated voltage of the battery. If charging voltage is lower than +10% of battery rated voltage, charging time increases and produce an uncompleted charge and thus a reduced
capacity. Charging voltages higher than +20% of rated voltage can damage the battery and shortens its life.
Charging time: variesaccording to charging current/voltage. Consider a minimumcharging time of 3-4 hours after abattery discharge.
Discharged battery: a battery is considered discharged when its voltage, measured applying a 50% load, is lower than -10% of rated voltage, or when voltage measured with
no load is lower than rated voltage.
Total discharge: when a batterygives a voltage between 0 - 60% of rated voltage, it’stotally discharged. Total or deep discharge reducesbattery life and mustbe avoided.
Disconnect the batteryfrom the load when voltage is lower than e.g. 18V/9V inat 24V/12V battery.
Operating temperature: for a long duration of the battery operating temperature must be kept within 10°C/+50°F…30°C/+ 86°F. Battery duration decreases outside this
range. At low temperatures the battery might not supply rated Ah, because electrochemical reaction are less efficient.
Overload–short circuit battery protection: battery and its connecting cables must be protected with overcurrent protection devices (fuses, circuit breakers, etc.) able to cut-
off dangerous currents.

NUPSxx Series
Instruction Manual
NUPSxx Series V5.0
www.nextys.com
Page 4/5
Fig.1
Connections
Fig.2
Dimensions
Fig.3
Distances
Just for reference
(1) DC input
(2) DC output (load)
(3) Battery connection
(4) Diagnostic Output dry contact
NC Power Supply OK
(5) Green LED: Power Supply OK
(6) Yellow LED: Load OK
(7) Charging current jumper
(8) Green LED: Battery OK
(9) Red LED: Battery Low
(10) Red LED: Batt. Reverse polarity
Input DC Line:
IN + = + Positive DC
IN - = - Negative DC
Output:
LOAD + = Positive Load
LOAD - = Negative Load
BATT + = Positive DC Battery
BATT - = Negative DC Battery
Dry contact = NC
Dry contact = NO
Dimension
W
D
H
mm (inc)
54.0 (2.16)
110.0 (4.33)
115.0 (4.52)
Distance
A
B
mm (inch)
20 (0.8)
50 (2.0)
Fig.4
Mounting / Dismounting Instructions
For DIN rail fastening according to IEC 60715 TH35-7.5(-15)
Mounting as shown in figure, with inputterminals on lower side, with suitable cooling and maintaining a proper distance between adjacent devices as specified in the I.S.
manual of each family.
Mounting:
1
2
1.Tilt the unit slightly backwards.
2.Fit the unit over the top edge of the rail.
3.Slide it downward untilit hits the stop.
4.Press against the bottom for locking.
3
4

NUPSxx Series
Instruction Manual
NUPSxx Series V5.0
www.nextys.com
Page 5/5
Dismounting:
1.Pull down the slide clamp lever
2.Tilt the unit upward
3.Unhook the unit from the rail
1 & 2
3
Fig.5
Recommended connecting cable
Recommended Tightening torque
0.5-0.6 Nm
4.42-5.30 lbf in
Solid: 2.5mm² / 12AWG
Stranded:1.5mm² / 12AWG
L: 6.0-7.5mm / 0.24-0.30 in
Fig.6
Input protection
Use Mini Car blade fuses 15A
Fig.7
Input connections
DC Line
Schematic connection
Fig.8
Environment
Operating temperature
Derating
- 40°C…50°C
5…95% r.H. non condensing
No derating
Note:
Data may changewithout prior notice in order to improve the product.
Please refer to the latest versionof the "Instruction Manual" for each product by visiting www.nextys.com
See also the products below that can be used in conjunction with NUPSxx units: (accessory device)
OR20 20A Active ORing controller
OR50 50A Active ORing controller
BU150U 150J Buffer Module
NBP30 Sealed Lead acidBattery pack