LDD240-WU
INPUT:
12 – 48 VDC, 12 A
OUTPUT:
5 – 55 VDC, 10 A Max (240 W Max)
MAIN FEATURES
• Up to 240 W output power (voltage dependent)
• Converts any voltage between 11 V and 55 V to any voltage between 5 V and 55 V
• High efficiency and compact size
• Constant current or hiccup mode limitation, user settable
• Digital Power regulation
• Isolated topology (4.2 kVDC)
• Modbus over USB interface for control and monitoring
• Multiple protections integrated
• Parallelable for power or redundancy (integrated ORing circuitry)
• UL508 Certified
READ THIS CAREFULLY BEFORE
INSTALLATION!
VOR DER INSTALLATION BITTE FOLGENDE
SICHERHEITSHINWEISE BEACHTEN!
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.
Do not open the device, it does not contain
replaceable components, the tripping of the
internal fuse (if included) is caused by an
internal failure.
Do not 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 Bel for any
consequences deriving from the use of this
material.
Lesen Sie dieses Dokument vor der
Inbetriebnahme sorgfältig durch und bewahren Sie
es zum späteren Nachschlagen auf.
Die Nichtbeachtung dieser Anweisungen kann die
Funktion und Sicherheit der Geräte beeinträchtigen
und birgt Gefahren für Personen und Eigentum.
Die Geräte müssen von qualifiziertem Personal
unter Einhaltung der geltenden Normen und
Vorschriften installiert, betrieben, gewartet und
instand gehalten werden.
Öffnen Sie das Gerät nicht, es enthält keine
austauschbaren Komponenten, das Auslösen der
internen Sicherung (falls vorhanden) ist stets auf
tiefergehende Fehler im Schaltkreis zurück zu
führen.
Reparieren oder modifizieren Sie das Gerät nicht.
Sollte während des Betriebs eine Fehlfunktion oder
ein Defekt auftreten, schicken Sie das Gerät zur
Überprüfung ins Werk.
Bel übernimmt keine Haftung für die Folgen, die
sich aus dem Einsatz dieses Gerätes ergeben.
Prima dell’installazione, leggere attentamente
questo documento istruzioni e conservarle per
future consultazioni.
L’inosservanza delle presenti istruzioni 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 il prodotto, 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 il funzionamento si
verificano guasti o anomalie, inviarlo al
produttore per il controllo.
Bel non si assume nessuna responsabilità per
qualunque conseguenza derivante dall’uso di
questo materiale.
Lire ces instructions avant l'installation,
conserver ce manuel pour référence future.
Défaut de se conformer à ces instructions
peut affecter les caractéristiques et la sécurité
du dispositif, et causer du danger aux
personnes ou aux biens.
Les produits doivent être installés, exploités
et entretenus par du 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, retourner le
produit au fabricant pour inspection.
Bel n'assume aucune responsabilité des
conséquences éventuelles découlant de
l'utilisation des produits.
CAUTION
ACHTUNG
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 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).
GEFAHR VON VERBRENNUNGEN,
EXPLOSIONEN, FEUER, STROMSCHLAG,
PERSONENSCHÄDEN.
Führen Sie niemals Arbeiten an
spannungsführenden Teilen durch! Gefahr von
tödlichen Verletzungen! Das Gehäuse des Gerätes
kann heiß sein, lassen Sie Zeit zum Abkühlen des
Gerätes, bevor Sie es berühren.
Lassen Sie keine Flüssigkeiten oder Fremdkörper
in die Geräte eindringen.
Um Überschläge zu vermeiden, schließen Sie das
Gerät nicht an oder trennen Sie es nicht ohne
vorher die Eingangsspannung abgeschaltet zu
haben, und warten Sie die Entladung der internen
Kondensatoren ab (mindestens 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 di 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 condensatori interni (min. 1
minuto).
RISQUE DE BRULURES, EXPLOSION,
INCENDIE, ELECTROCUTION, DOMMAGE
AUX PERSONNES.
Ne jamais effectuer des opérations sur les
parties sous tension! Danger de mort!
Le boîtier peut produire des brûlures, le
laisser refroidir avant de toucher l'appareil. Ne
faire pas pénétrer des liquides ou des corps
étrangers dans l'appareil.
Pour éviter des étincelles, ne pas connecter
ou déconnecter l'équipement jusqu'à ce que
la tension d'entrée a été supprimée et avant
qu'il n'ait eut lieu la décharge des
condensateurs internes (minimum 1 minute).
INTENDED USE
BESTIMMUNGSGEMÄßER BETRIEB
USO PREVISTO
UTILISATION
These are isolated devices suitable for SELV
and PELV circuitry and are designed to be
mounted on DIN rail and installed inside a
protective enclosure. They are intended for
general use such as in industrial control,
communication, and instrumentation
equipment.
Do not use these devices in applications
where malfunction may cause injury or death.
Es handelt sich um galvanisch getrennte Geräte,
die für SELV- und PELV-Anwendungen geeignet
sind und für die Montage auf DIN-Schienen und die
Installation in einem Schutzgehäuse konzipiert
sind. Sie sind für den allgemeinen Gebrauch wie
z.B. in industriellen Steuer-, Kommunikations- und
Automatisierung-Anwendungen vorgesehen.
Verwenden Sie diese Geräte nicht in
Anwendungen, bei denen eine Fehlfunktion zu
Verletzungen oder zum Tod führen kann.
I dispositivi sono isolati, adatti per applicazioni
SELV e PELV, sono dotati di aggancio per il
montaggio su guida DIN all’interno di quadri
elettrici o contenitori di protezione, per
l’utilizzo con controllori industriali, unità di
comunicazione o apparecchi di misura.
Non utilizzare in applicazioni in cui un
eventuale guasto può comportare rischio di
lesioni o di morte.
Les produits sont isolés, appropriés pour les
circuits TBTS et TBTP et sont équipés d'un
crochet pour montage sur rail DIN dans des
armoires ou conteneurs de protection, pour
utilisation avec les contrôleurs industriels, des
modules de communication ou des unités de
mesure.
Ne pas utiliser ces dispositifs dans une
application où un dysfonctionnement pourrait
entraîner le risque des blessures ou de mort.
ENVIRONMENTAL CHARACTERISTICS
UMGEBUNGSBEDINGUNGEN
CARATTERISTICHE AMBIENTALI
CARACTÉRISTIQUES ENVIRONMENTALES
Installation in a Pollution Degree 2
environment.
Do not use in wet area or subject to moisture.
Carefully recycle the product and related
batteries according to local regulations.
Installation in einer Umgebung mit
Verschmutzungsgrad 2.
Nicht in nassen Bereichen oder unter Feuchtigkeit
verwenden.
Das Gerät und die zugehörigen Batterien sind
entsprechend den lokalen Vorschriften zu recyceln
bzw. zu entsorgen.
Usare in ambienti con Grado di Inquinamento
2.
Non far funzionare l'apparecchio in un
ambiente umido o soggetto a formazione di
condensa. Riciclare il prodotto e le batterie
collegate, nel rispetto delle normative locali
vigenti.
Utiliser les produits dans des environnements
avec degré de pollution 2.
Ne pas employer l'appareil dans un
environnement humide ou soumis à la
condensation. Recycler les produits et les
batteries, conformément à la réglementation
locale.
Manufacturer
Bel Fuse Inc.
300 Executive Drive, Suite 300
West Orange, NJ 07052
USA
Asia-Pacific
+86 755 2988 5888
Europe, Middle East
+353 61 49 8941
North America
+1 866 513 2839
belfuse.com/power-solutions
© 2023 Bel Fuse Inc.
BCM.00484_AF
USER INSTRUCTIONS
1) DESCRIPTION
Description: LDD240-WU can be supplied with any voltage between 11 VDC and 55 VDC, please respect the polarity. The output voltage can be programmed to any
voltage between 5 VDC and 55 VDC.
To prevent damage in case of reverse polarity, the device is protected by an internal not replaceable fuse. LDD240-WU can be used in SELV and PELV circuits.
2) INSTALLATION
use DIN-rails according to EN 60715. Installation should be made vertically (see Fig.4). For better device stability fix the rail to the wall close to the point where the device
is to be mounted. To guarantee sufficient convection, we recommend observing a minimum distance to other modules (see Fig.3).
The device is provided with a thermal protection, a limited air flow can cause the thermal protection tripping.
The device automatically restarts after cooling.
To get normal operation reduce the temperature of the air surrounding the unit, increase the ventilation or reduce the load.
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 capacitors discharge (minimum 1 minute)
In order to comply with 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 wires according to the indication on Fig.5 and ensure that all strands of a stranded wire enter the terminal connection.
4) DC INPUT PROTECTION
LDD240-WU is equipped with internal fuse, ratings of DC line protection devices must be coordinated with input current indicated on the data sheet.
5) OVERLOAD (OL) / SHORT CIRCUIT (SC) / OVERVOLATGE (OVP) / OVERTEMPERATURE (OTP) PROTECTIONS
Hiccup auto-reset and constant current limitation, user selectable.
Overload behaviour in hiccup mode: the output current is limited at 1.5xImax. When the programmed Imax value is exceeded a timer is started. If the load current
demand is not reduced below Imax for maximum 5 seconds the output is switched off and kept off for 10 seconds.
Overload (OL) error message is shown on the display, this cycle is then repeated until the load current demand is not decreased below Imax.
Overload behaviour in constant current mode: the output current is limited at Imax. If the load asks for more current than Imax the output voltage is progressively
decreased to keep the output current regulated at Imax.
Short circuit behaviour: the output is switched off in about 0.2 seconds and kept off for 10 seconds. Short Circuit (SC) error message is shown on the display details.
This cycle is then repeated until the short circuit is removed.
Input/output overvoltage protection: the unit is protected against external overvoltage applied to the input; for input voltages greater than 62V the device will shut down.
In case of an internal failure, a double protection circuit switch off the output and avoid output voltage higher than 62V potentially dangerous for the supplied devices.
Overtemperature protection: The “Over Temperature (Ot)” error message appears when the internal temperature exceeds the safe limits. In this case the output is
switched off. The output is switched back on when the temperature decreased to safe limits.
6) STATUS SIGNALS
“DC OK” relay contact(24V/1A): Contact closes when the output voltage is present and within the product specified output voltage regulation range.
7) REDUNDANT AND PARALLEL CONNECTION
LDD240-WU is equipped with an internal ORing circuit allowing direct parallel connection for redundancy without the need of an external isolating diode. Parallel
connection for power increase can be achieved connecting the output of the devices in parallel. Please keep the length of the input and output cables of the 2 paralleled
units the same length and cross section to achieve the best possible current balancing. Avoid exceeding 80% of the total available output current. To use parallel
connection the operating mode shall be set to “Parallel (PA)” in the configuration menu.
8) FEEDING DC MOTORS
it is possible to feed DC motors considering that when a motor starts-up under effort its consumption is much higher than the nominal current and it can trigger
overcurrent protection.
NOTE: motors can generate high conducted noise on the DC line. Therefore, it is not recommended to feed on the same line motors and equipment sensitive to noise.
9) WARRANTY
Power supplies are guaranteed free from factory defects for the time specified in the “Sales Conditions”.
Failures caused by misuse, external and/or abnormal events (i.e. overvoltage, over temperatures) or non-respect of above parameters and standards, are not covered by
warranty.
Opening the housing of the product makes warranty to be no longer valid.
INPUT PROTECTION
INPUT CONNECTIONS - DC LINE
Fuse MCB 6 A C curve or 4 A D curve.
For USA and Canada, use the fuse type closest to the European equivalent type. Surge protection:
it is strongly recommended to provide external surge arresters (SPD) according to local regulations.
Manufacturer
Bel Fuse Inc.
300 Executive Drive, Suite 300
West Orange, NJ 07052
USA
Asia-Pacific
+86 755 2988 5888
Europe, Middle East
+353 61 49 8941
North America
+1 866 513 2839
belfuse.com/power-solutions
© 2023 Bel Fuse Inc.
BCM.00484_AF
MENU NAVIGATION
The menu organisation is presented in the following diagram. The various options are selected with 3 control keys.
2s
2s
Set
2s
Set
Default
screen
Output
voltage
Output
current
2s
Set
Operating
mode
2s
Set
Current
limit
2s
Set
Output
enable
Allowed values: 4.5...57V
Resolution: 0.01V
Default value: 5V
Allowed values: 1...11A
Resolution: 0.1A
Default value: 10A
Allowed values: Single (SI), Parallel (PA)
Default value: Single
Allowed values: Constant current (CC), Hiccup (HU)
Default value: Hiccup
Allowed values: Disabled (DI), Enabled (EN)
Default value: Enabled
Set
Set
(Store)
15s Default
screen (No store)
Set
Set
(Store)
(No store)
Set
Set
(Store)
(No store)
Set
Set
(Store)
(No store)
Set
Set
(Store)
(No store)
USB Powered High temperature Over temperature Short cucuit
2s
Set
Modbus
address Allowed values: 1...99
Default value: 1
(Store)
Set
Set
(Store)
(No store)
Default
screen
Default
screen
Default
screen
Default
screen
Default
screen
Overload
Measures
15s
15s15s
15s 15s
15s 15s
15s 15s
15s 15s
Over voltage
Manufacturer
Bel Fuse Inc.
300 Executive Drive, Suite 300
West Orange, NJ 07052
USA
Asia-Pacific
+86 755 2988 5888
Europe, Middle East
+353 61 49 8941
North America
+1 866 513 2839
belfuse.com/power-solutions
© 2023 Bel Fuse Inc.
BCM.00484_AF
CONNECTIONS AND USER INTERFACE
DIMENSIONS
DISTANCES
(1) Modbus over USB: used to connect a device running POWERMASTER or
custom user application. Firmware update is also possible.
(2) DC Output: connected to the load. The output voltage is adjustable between
5 to 55 VDC.
(3) DC-OK dry contact: normally open relay contact is available; the relay closes
when the output voltage is >90% of the programmed output voltage value.
(4) DC Input: input voltage supply, range is from 12 to 48 VDC.
(5) Display: 2-digits LED display used to program the device and read its status.
(6) Control keys: 3 push buttons are provided to navigate through menus and to
select various functions.
Input Connection:
▪ + = Positive DC
▪ - = Negative DC
▪ = Earth ground
Output Connection:
▪ + = Positive DC
▪ - = Negative DC
Mini USB-B Type:
▪ 1 = VBUS (+5V)
▪ 2 = Data (D-)
▪ 3 = Data (D+)
▪ 4 = Not connected (ID)
▪ 5 = GND
Auxiliary Connection:
DC OK: Dry contact
▪ NO
▪ COM
Dimension
W
D
H
mm
40.0
110.0
115.0
Distance
A
B
mm
20
50
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
Installation Instruction of each family.
MOUNTING:
1. Tilt the unit slightly backwards.
2. Fit the unit over the top edge of the rail.
3. Slide it downward until it hits the stop.
4. Press against the bottom for locking.
1
2
3
4
DISMOUNTING:
1. Pull down the slide clamp lever
2. Tilt the unit upward
3. Unhook the unit from the rail
1 & 2
3
RECOMMENDED CONNECTING CABLE
Recommended Tightening torque
0.5 - 0.6 Nm
4.42 - 5.30 lbf in
Input / Output connections
Solid: 2.5 mm² / 12 AWG
Stranded:1.5 mm² / 12 AWG
L: 6.0 - 7.5 mm / 0.24 - 0.30 in
NOTES:
▪ Data may change without prior notice in order to improve the product.
▪ Please refer to the latest version of LDD240-WU Datasheet or LDD240-WU User Manual on our wbsite
belfuse.com/power-solutions
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dans d''autres langues
- italiano: BEL LDD240-WU Guida d'installazione
- English: BEL LDD240-WU Installation guide
- Deutsch: BEL LDD240-WU Installationsanleitung
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