nextys NPST721 Series User manual

NPST721 Series
Instruction Manual
NPST721 Series V3.0
www.nextys.com
Page 1/5
NPST721 Series – 3 Phases / DC input switching power supply
Main Features:
High efficiency
Ultra compact size
Overload 150%
Up to 60°C operating temperature with no derating
Constant current or Hiccup mode limitation, user settable
Easy parallelable for power increase
Low noise thermallyregulated 60mm fan
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

NPST721 Series
Instruction Manual
NPST721 Series V3.0
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 occurduring operation, send unitto 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 offatal injury!
The product’senclosure may be hot, allowtime for cooling
product before touching it. Do not allow liquids or foreign
objects to enter into 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 primadi toccarlo. Non far entrare 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 corpsétrangers 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: [e-mail]
This Declaration ofConformity issuitable to the European Standard EN45014 "General criteria for supplier’s declaration of conformity".
We declare under our sole responsibilitythat the device included in thisbox, has passed all processing inspections and the final test and itis 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: the product respectsthe EC requirements related to REACHSVHC directive (2015)
Note: all the reported information comesfrom our suppliers,NEXTYS SA.has not run any test to evaluate ifthe specificelements are present.
All indicated devices are designedaccording to the latest Reference standards, ifnot expressly indicated through the official documents 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
NPST721-24 Three phases switching power supply IN 400 - 500Vac (520 - 725Vdc)/ OUT 24Vdc - 30A
NPST721-48 Three phases switching power supply IN 400 - 500Vac (520 - 725Vdc)/ OUT 48Vdc - 15A
Certifications and approvals
IND.CONT.EQ. 4WX9
Reference standards
2014/35/EU (2014) (Low Voltage Directive)
2014/30/EU (2014) (EMC directive)
EN60950-1:2006 /A2:2013 (Safety Standards)
UL508 (Certified - IND. CONT. EQ. 4WX9 file no. E356563)
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, short interruptions and voltage immunitytest)
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

NPST721 Series
Instruction Manual
NPST721 Series V3.0
www.nextys.com
Page 3/5
USER INSTRUCTIONS
1) Description: DIN rail mountableprimary switched-mode powersupply with 340...550Vac (520…725Vdc) suitable for ThreePhases main lineand DC line.
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 isto 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 airflow can cause the thermal protection tripping.
The SMPS automatically 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 (minimum 1 minute)
In order to complywith UL certification, use appropriate copper cables of indicated cross section, designed for an operating temperatures of:
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 andensure that allstrands of a stranded wire enterthe terminal connection (see Fig.5)
4) Input protection: the device input is provided with varistors against overvoltage. Input is not provided with internal fuses, thus an external short circuit/overcurrent protection
must be provided by the end user (see Fig.6).
For operation on a three phases system, a protection fuse on each phase must be provided.
Surge protection: it is strongly recommended to provide external surge arresters(SPD) according to local regulations.
5) AC input connection: the device can be connected to three phases AC lines with Uin 400…500Vac (see Fig.7). Please connect first the PE.
6) DC input connection: connect L1 terminal to (+) positive pole, L2 terminal to (-) negative pole, L3 do not connected and Iterminal to GND. Rated voltage 520...725Vdc.
The device isalso suitable for photovoltaic orwind turbine applications (see Fig.7).
7) Output connection: The device is suitable for SELV and PELV circuitry.
Uout can be adjusted with a potentiometer to a wide range (see Fig.1)
Check Uout before connecting thepower supply to the load. With output voltage set to the max. value, the continuous [currentx voltage] mustnot exceed the nominal power.
8) Parallel connection and redundancy: power supplies can be connected in parallel to increase power. For paralleling for power set the Ilim jumper to C.C. algorithm.
Uout must be set uniformly (±100mV) on each power supply and the wiring must be symmetrical to ensure an equal current distribution.
For redundant connection, use an external isolating device must be used (see accessory device).
9) Output protection: the device is protected against overload (OL) / short circuit (SC) / overvoltage (OV) / overtemperature (OT).
OL and SC: are controlled by a hiccup mode or a constant current (C.C.) mode protection with the following behaviour.
The Hiccup mode or C.C. mode are selectable with Jumper (see Fig.1)
OL behaviour in hiccup mode: max. OL = 1.5 x In the output voltage remains constant at nominal voltage for about 5s and after that time the device starts an ON/OFF cycle.
OL behaviour in CC mode: max. OL = 1.5 x In the output voltage remains constant at nominal voltage for about 5s and after that time the device limits the current at In. If the
load resistance isfurther decreased the output voltage starts to drop. The device never switches OFF.
SC behaviour in hiccup mode: the device supplies 1.5 xIn for about 5s and after that time the device startsan ON/OFF cycle.
SC behaviour in CC mode: the device supplies 1.5 x In and the output voltage drops to a level depending on the impedance of the failed load circuit. After 5s the current is
limited to In. The device never switches OFF.
Output OV circuit protection: the output is protected against potential OV due to internal malfunction or coming from the load for UoutUnom x 1.2…1.4, depending on the
model.
OT protection: turns off thedevice if the internal temperature exceeds a safe limit.
The device restarts automatically after cooling down. To recover to normal operation reduceair temperature surrounding thepower supply, increase cooling orreduce load
(see Fig.8).
10) Feeding DC motors: it is possible to feed DCmotors considering that when a motor starts-up under effort its consumptionis much higher than the nominal current and it
can trigger overcurrent protection (see accessory device). For these applications the C.C. (Constant Current) mode of current limitation is recommended.
NOTE: motors can generate high conducted noise on the DC line. Therefore itis notrecommended to feed on the same line motors and equipment sensitive to noise.
11) Operation with Battery: when a batteryis connected in parallel to the Output for backup purposes;the NPST721 mustbe set on C.C.mode to avoidbattery over-charging
(see accessory device).

NPST721 Series
Instruction Manual
NPST721 Series V3.0
www.nextys.com
Page 4/5
Fig.1
Connections
Fig.2
Dimensions
Fig.3
Distances
Just for reference
(1) AC/DC input
(2) DC output (load)
(3) Diagnostic Output
(dry contact, NC output OK)
(4) Green LED: Output OK
(5) Red LED: Overload
(6) Output voltage adjustment
(7) Selectable limitation mode
(Hiccup mode, C.C. mode)
Input AC Line:
L1 = Phase 1
L2 = Phase 2
L3 = Phase 3
I= earth ground
Input DC Line:
L1 = + Positive DC
L2 = - Negative DC
L3 = do not connect
I= earth ground
Output:
+ = Positive DC
- = Negative DC
Dry contact = NC
Dimension
W
D
H
mm (inch)
80.0 (3.15)
137.5 (5.41)
127.0 (5.00)
Distance
A
B
mm (inch)
20 (0.8)
100 (3.9)
Fig.4
Mounting / Dismounting Instructions
For DIN rail fastening according to IEC 60715 TH35-7.5(-15)
Mounting as shown in figure, with input terminals 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 until it hitsthe stop.
4.Press against the bottom for locking.
3
4

NPST721 Series
Instruction Manual
NPST721 Series V3.0
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
0.8/1.0Nm
7.0/8.85 lbf in
Solid: 6.0mm² / 10AWG
Stranded: 4.0mm² / 10AWG
L: 7.0 – 8.0mm / 0.28 - 0.31in
Fig.6
Input protection
Fuses 3x AT 10A orMCB 10A C curve.
For USA and Canada, use the fuse type closestto the European equivalent type.
Surge protection: it is strongly recommended to provide external surge arresters (SPD) according to local regulations.
Fig.7
Input connections
AC Line
DC Line
Fig.8
Environment
Operating temperature
Derating
- 40°C…70°C
5…95% r.H. non condensing
UL Certified up to 60°C
Overtemperature protection
- 16.0W/°C over 60°C
Note:
Data may change without 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 NPST721 units: (accessory device)
OR20 20A Active ORing controller
OR50 50A Active ORing controller
DCU20 20A High performance DC UPS
BU150U 150J Buffer Module
NUPS12/24 Battery chargerand DC UPS Module
MBC2K 2000W Motor brake controller
NBP30 Sealed Lead acidBattery pack