ENDEFRES
IT
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UF40.241 Installation Manual
UF40.241 Installationsanleitung
UF40.241 Manuel d'installation
UF40.241 Manual de instalación
UF40.241 Manuale di Installazione
UF40.241 Manual de instalação

Buffer Module 24V, 40A
Puffermodul 24V, 40A
Module tampon CC 24V, 40A
Unidad buffer SAI en CC 24V, 40A
Modulo tampone 24V, 40A
Unidade buffer 24V, 40A

Doc. ID: PU-425.015.00-xxB (2020-05-26).

Read this first!

English

Before operating this device, please read this manual thoroughly and retain this manual forfuture reference! This device may only be installed and put into operation by qualified
personnel. If damage or malfunction should occur during operation, immediately turn power
off and send device to the factory for inspection. The device does not contain serviceableparts. The information presented in this document is believed to be accurate and reliable andmay change without notice. For any clarifications the English translation will be used.

WARNING-Vor Inbetriebnahme lesen!

Risk of electrical shock, fire, personal injury, or death:

Turn power off before working on the device. Protect against inadvertent re-powering.
Do not open, modify or repair the device.
Use caution to prevent any foreign objects from entering the housing.
Do not use in wet locations or in areas where moisture or condensation can be expected.
Do not touch during power-on and immediately after power-off. Hot surfaces may causeburns.

-A lire avant mise sous tension!

Français

Veuillez lire ces instructions de montage et d'entretien avant de mettre l'alimentation soustension. Conservez ce manuel qui vous sera toujours utile. Cette alimentation ne doit êtreinstallée que par du personnel qualifié et compétent. En cas de dommage ou
dysfonctionnement, coupez immédiatement la tension d’alimentation et retournez l’appareil àl’usine pour vérification. ! L’alimentation ne contient pas de pièces échangeables Les
données indiquées dans ce document servent uniquement à donner une description duproduit et n'ont aucune valeur juridique. En cas de divergences, le texte anglais fait foi.
Prendre en compte les points suivants, afind'éviter toute détérioration électrique, incendie,
dommage aux personnes ou mort:
Mettre l’alimentation hors tension avant toute intervention sur celle-ci et s'assurer qu'il n'ya pas risque de redémarrage.
Ne pas ouvrir, modifier ou réparer l'alimentation.
Veiller à ce qu'aucun objet ne rentre en contact avec l'intérieur de l'alimentation(trombones, pièces métalliques).
Ne pas faire fonctionner l'appareil dans un environnement humide ou dans unenvironnement où il peut y avoir de la condensation.
Ne pas toucher le carter pendant le fonctionnement ou directement après la mise horstension. Surface chaude risquant d’entraîner des blessures.

-Leggere prima questa parte!

Italiano

nachfolgender Punkte kann einen elektrischen
WARNUNG Missachtung
Schlag, Brände, schwere Unfälle oder Tod zur Folge haben:
Schalten Sie die Eingangsspannung vor Installations-, Wartungs- oder Änderungsarbeitenab und sichern Sie diese gegen unbeabsichtigtes Wiedereinschalten.
Führen Sie keine Änderungen oder Reparaturversuche am Gerät durch. Gerät nicht öffnen!
Verhindern Sie das Eindringen von Fremdkörpern, wie z.B. Büroklammern und Metallteilen.
Betreiben Sie das Gerät nicht in feuchter Umgebung oder in einer Umgebung, bei der mit
Betauung oder Kondensation zu rechnen ist.
Gehäuse nicht während des Betriebes oder kurz nach dem Abschalten berühren. Heiße
Oberflächen können Verletzungen verursachen.

Lea primero!

Español

Conserve este manual como referencia para futuras consultas. La fuente de alimentación solo
puede ser instalada y puesta en funcionamiento por personal cualificado. Por favor lea
detenidamente este manual antes de conectar la fuente de alimentación. Si se produce un falloo mal funcionamiento durante la operación, desconecte inmediatamente la tensión dealimentación. En ambos casos, el equipo debe ser inspeccionado en fábrica. La información
presentada en este documento es exacta y fiable en cuanto a la descripción del producto ypuede cambiar sin aviso. En casa de duda, prevalece el texto inglés.

ADVERTENCI A

AVERTISSEMENT-Deutsch

Bitte lesen Sie diese Warnungen und Hinweise sorgfältig durch, bevor Sie das Gerät in Betriebnehmen. Bewahren Sie die Anleitung zum Nachlesen auf. Das Gerät darf nur durch
fachkundiges und qualifiziertes Personal installiert werden. Bei Funktionsstörungen oderBeschädigungen schalten Sie sofort die Versorgungsspannung ab und senden das Gerät zurÜberprüfung ins Werk. Das Gerät beinhaltet keine Servicebauteile. Die angegebenen Daten
dienen allein der Produktbeschreibung und sind nicht als zugesicherte Eigenschaften imRechtssinne aufzufassen. Im Zweifelsfall gilt der englische Text.

-Riesgo de descarga eléctrica, incendio, accidente
grave o muerte:

Desconectar la tensión de red antes de trabajar en la fuente de alimentación. Evite una
posible reconexión involuntaria.
No realizar ninguna modificación o reparación de la unidad. No abrir la unidad.
Evitar la introducción en la carcasa de objetos extraños.
No usar el equipo en ambientes húmedos. No operar el equipo en ambientes donde seespere la formación de rocío o condensación.
No tocar durante el funcionamiento ni inmediatamente después del apagado. El calor de lasuperficie puede causar quemaduras graves.

Leia primeiro!

Portuguès

Prima di collegare il sistema di alimentazione elettrica si prega di leggere attentamente leseguenti avvertenze. Conservare le istruzioni per la consultazione futura. Il sistema dialimentazione elettrica deve essere installato solo da personale competente e qualificato. Se
durante il funzionamento si verificano anomalie o guasti, scollegare immediatamente latensione di alimentazione. In entrambi i casi è necessario far controllare l'apparecchio dalproduttore! I dati sono indicati solo a scopo descrittivo del prodotto e non vanno consideraticome caratteristiche garantite dell'apparecchio. In caso di differenze o problemi è valido iltesto inglese

Recomendamos a leitura cuidadosa das seguintes advertências e observações, antes decolocar em funcionamento a fonte de alimentação. Guarde as Instruções para futura consulta,
em casos de dúvida. A fonte de alimentação deverá ser instalada apenas por profissionais daárea, tecnicamente qualificados. Se por acaso, durante a utilização ocorrer algum defeito defuncionamento ou dano, desligue imediatamente a tensão de alimentação. Em ambos os casos,será necessária uma verificação na Fábrica! Os dados mencionados têm como finalidade
somente a descrição do produto, e não devem ser interpretados como propriedades garantidas
no sentido jurídico. Em caso de duvidas aplica-se o texto em inglês.

Il mancato rispetto delle seguenti norme può
provocare folgorazione elettrica, incendi, gravi
incidenti e perfino la morte:
Prima di eseguire interventi di installazione, di manutenzione o di modifica scollegare latensione di rete ed adottare tutti i provvedimenti necessari per impedirne il ricollegamento
non intenzionale.
Non tentare di aprire, di modificare o di riparare da soli l'apparecchio.
Impedire la penetrazione di corpi estranei nell'apparecchio, ad esempio fermagli o altri
oggetti metallici.
Non far funzionare l'apparecchio in un ambiente umido. Non far funzionare l'apparecchio
in un ambiente soggetto alla formazione di condensa o di rugiada.
Non toccare quando acceso e subito dopo lo spegnimento. La superficie calda puòcausare scottature.

A não observância ou o incumprimento dos pontos a seguir
mencionados, poderá causar uma descarga elétrica, incêndios,acidentes graves ou morte:
Antes de trabalhos de instalação, manutenção ou modificação, desligue a tensão dealimentação, protegendo-a contra uma nova ligação involuntária.
Não efectue nenhuma modificação ou tentativa de reparação no aparelho. Quando
necessário contacte o seu distribuidor. Não abra o aparelho.
Proteger a fonte de alimentação contra a introdução inadvertida de corpos metálicos, comopor ex., clipes ou outras peças de metal.
Não usar o aparelho em ambientes húmidos. Não usar o aparelho em ambientes propensosa condensações.
Não tocar enquanto estiver em funcionamento, nem após a desligar. A superficie poderá
estar quente e provocar lesões.

AVVERTENZ A--

ATENÇÃO

-Headquarters: PULS GmbH, Elektrastr. 6, 81925 Munich, Germany, www.pulspower.com
Germany +49 89 9278 0
China+86 512 62881820

France+33 478 668 941
Austria+43 2764 3213
Switzerland+41 56 450 18 10North America +1 630 587 9780
Singapore+65 6684 2310
United Kingdom +44 1525 841001
The information in this document is believed to be accurate and reliable and may change without notice.

ENUF40.241 Installation Manual

Product Description
The UF40.241 buffer module is a supplementary device for regulated DC power supplies and can beused as power source to bridge failures of the DC voltage supply system or to extend the hold-up timeafter loss of the AC power or to deliver short-term peak current above the current rating of the power
supply.

Intended Use
This device is designed for installation in an enclosure and is intended for commercial use, such as inindustrial control, process control, monitoring and measurement equipment or the like. Do not use thisdevice in equipment where malfunction may cause severe personal injury or threaten human life.

Installation Instructions
Install the device in an enclosure providing protection against electrical, mechanical and fire hazards.
Install the device onto a DIN-rail according to EN 60715 with the power terminals on the top of theunit.
Make sure that the wiring is correct by following all local and national codes. Use appropriate copper
cables that are designed for a minimum operating temperature of 60°C for ambient temperatures up to+45°C, 75°C for ambient temperatures up to +60°C and 90°C for ambient temperatures up to +70°C.
Ensure that all strands of a stranded wire enter the terminal connection.
The device is designed for pollution degree 2 areas in controlled environments. No condensation orfrost is allowed.
The enclosure of the device provides a degree of protection of IP20. The enclosure does not provide
protection against spilled liquids.
The isolation of the devices is designed to withstand impulse voltages up to 1.5kV according to IEC
60664-1.
The device can be powered from a regulated power supply or a similar DC source. The continuous
voltage between the supply voltage terminals and the PE potential must not exceed 60Vdc. Use anappropriately sized 24V power supply, which can deliver the additional internal current consumption,required to charge the capacitors. Check for correct supply voltage polarity. The device will not
operate when the voltage is reversed. The device must be powered from a PELV or SELV source oran "Isolated Secondary Circuit" in order to maintain a SELV or PELV level.
The device is designed for convection cooling and does not require an external fan. Do not obstruct
airflow and do not cover ventilation grid!
Keep the following minimum installation clearances: 40mm on top, 20mm on the bottom, 0mm left andright side.
The device is designed for altitudes up to 5000m (16400ft).
The maximum surrounding air temperature is +70°C (+158°F). The operational temperature is thesame as the ambient or surrounding air temperature and is defined 2cm below the device.
The device is designed to operate in areas between 5% and 95% relative humidity.
For EMI reasons, signal lines (ready, active and inhibit) must be shorter than 30m.

Technical Data
All values are typical figures specified at 24Vdc supply voltage in standby
mode at 25°C ambient, no capacitor charging and after a 5 minutes run-intime unless otherwise noted.
Supply voltage
Minimum input voltage tostart charging and toenable buffer mode

DC 24V
23Vdc-20%/+25%

Transfer voltage to switch
into buffer mode

22.5Vdc
VIN-1VIn fixed modeIn variable mode

Internal current
max. 0.6A
consumption
Current limitation in buffer 43Amode

Includes charging
current

Buffer timemin. 160ms
min. 320ms
typ. 250ms
typ. 500ms
typ. 62s

At 22.5V, 40A
At 22.5V, 20A
At 22.5V, 40A
At 22.5V, 20A
At 22.5V, 0.1A

Charging time

45s
34s

For initial charging
For recharging shortly
after a buffer event

Power losses

1.9W

Temperature range-25°C to +70°C

Max. wire size (litz wire)
Wire size AWG
Max. wire diameter
Wire stripping length
Tightening torque

10mm²
AWG 22-8
5.2mm
12mm/ 0.5inch
2.3Nm/ 20lb.inch

For power terminals
For power terminals
For power terminals
For power terminals
For power terminals

Max. wire size (litz wire)
Wire size AWG
Max. wire diameter
Wire stripping length
Tightening torque

2.5mm²AWG 22-14
2.25mm6mm/ 0.25inch
0.4Nm/ 3.5lb.inch

For signal terminals
For signal terminals
For signal terminals
For signal terminals
For signal terminals

Size (wxhxd)
Weight62x124x142mm
1040g / 2.3lb

Without DIN-rail

Functional Diagram
Supply +Voltage

ReversePolarity
Protection

Safety andOvervoltage
Protection

Voltage
Monitor

ChassisGroundBoostConverter

ChargerController-Functional Description
Green Status LED
This LED is on solid, when the capacitor is charged. During charging, the LED is flashing with a slow
frequency and rapid flashing is an indication of a buffer event.
Back-up Threshold Selector
The buffer behavior can be selected with the back-up jumper between “Fixed Mode” and “VariableMode”. In "Fixed Mode", the unit switches to buffer mode as soon as the voltage falls below 22.5V. In"Variable Mode", the unit switches to buffer mode when input voltage decreases by 1V. Voltagechanges slower than 0.54V/s will be ignored if the voltage is above 22.5V. Below 22.5V buffering
starts immediately.
Inhibit Input
The inhibit input disables or stops buffering. Connect pin 6 to the positive pole of the supply voltage orto an external control voltage and pin 9 to the corresponding negative pole. Inhibiting the unit also
discharges the internal capacitors. Charging of the capacitor is not possible when the buffer module isin inhibit mode. The current of the inhibit input is limited to 4mA by the buffer module.
Active Signal
The signal “Active” (pin 7) is an opto-coupler output which is low ohmic while capacitors aredischarged. The maximal signal current between pin 6 and 7 is 10mA and the maximal voltage is 35V.
Ready Signal
The signal “Ready” (pin 8) is an opto-coupler output which is low ohmic when capacitors are fullycharged. The maximal signal current between pin 6 and 8 is 10mA and the maximal voltage is 35V.

Back-up
Level
Selector

StatusLED(6)

Storrage
Capacitor

SafetyCircuits
andDischarge
Circuit+(9) Inhibit(8) Ready(7) Active

Wiring Scheme
Load+ + - Output+ Input+ Input+ Input

Power
SupplyBuffer
ModuleBufferModuleBufferModuleInput
L N PE

Signals

Signals

Signals

Buffer modules can be connected in parallel to increase the output
ampacity or the hold-up time.

LED Signal Pattern
Green Status LED:
ReadyCharging
Buffering