LDD960-UU BEL | Alldatasheet

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Technical content

LDD960-UU is a microprocessor controlled unit that can perform two functions:  DC-UPS rated 960 W / 20 A usable in any system 12 – 48 VDC  DC/DC converter (non -isolated) rated 960 W / 20 A usable in any combination of IN/OUT voltages 12 – 48 VDC For the UPS function it may use one 12 V battery, independently of the operating load voltage. For any supply voltages (12 – 48 VDC) it may use also multiple battery configuration (10 – 60 VDC). LDD960-UU monitors the voltage coming from a DC power supply and in case of power failure a backup storage source supplies the energy to the load. In normal condition the battery is kept charged by an integrated battery charger supporting various battery chemistries. As a DC/DC converter (no battery present), the input voltage is converted to any output voltage as per the set -up (programmable by front keys or communication interfaces).  Digital power regulation, LCD interface  Integrated battery charger for 12 – 48 V multi-chemistries batteries with a charging current up to 20 A  Can operate with super capacitors modules  Battery voltage independent of input and output voltage  20 A or 960 W rated load  Multiple protections  Remote ON/OFF or other remote control functions possible through INHIBIT input  Measures voltages and currents on input, output and battery.  Battery protection against reverse polarity connection and overcurrent  Battery health monitoring system: measuring battery internal resistance, battery temperature, charge/discharge cycles and Coulomb counter  User settable maximum backup time  Auxiliary output with same voltage as battery (5A max.), protected against overcurrent/short-circuit  4 keys and 1 color graphic TFT LCD display  Allows online device configuration  Displays the LDD960-UU status and alarms  Modbus over RS-485 and USB interfaces for control and monitoring  Dry contacts for programmable status signals

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tech.support@psbel.com Input DC Voltage Nominal Range 12 - 48 VDC 10 - 60 VDC Input DC Current 20 A Standby Power < 4 W Main Output Output Power 960 W Voltage Vin for use as UPS; according to set-up for use as DC/DC converter 12 - 48 VDC (Nominal) Maximum Current / Power 20 A / 960 W Load Regulation ± 1% Efficiency at Full Load Power Loss UPS mode with Vin present > 98% < 7 W Efficiency at Full Load Power Loss UPS mode during backup > 97% < 15 W Efficiency at Full Load Power Loss DC-DC mode > 97% < 15 W Auxiliary Output Voltage U battery – non-regulated 12 - 48 VDC (Nominal) Continuous current 5 A Overload limit 6 A Battery Voltage (or to be used as input for DC/DC conversion) Nominal Range 12 - 48 VDC 10 - 60 VDC Battery Chemistries Lead Acid; Nickel; Lithium; Supercap capacitors Maximum Battery Charge Current 20 A Maximum Battery Discharge Current 20 A Allowed Battery Capacity up to 400Ah Battery Protections Overcurrent Deep Discharge Reverse Polarity Battery Charge Efficiency Power Loss > 96% < 20 W Maximum Backup Time User programmable, up to battery deep discharge threshold Battery Health Monitoring Battery Internal Resistance Range U battery – non-regulated 1 mΩ – 300 mΩ Additional Monitoring Functions - Coulomb counter - Battery temperature through 10kΩ NTC sensor (optional WNTC-2MT) - Battery operating time since installation - Number of cycles

+86 755 298 85888 Europe, Middle East +353 61 225 977 North America +1 408 785 5200 © 2017 Bel Power Solutions & Protection BCD.00916_001 1.5 inch Color Graphic LCD Used to display the unit’s status and to access the configuration menus

4 Keys Used to program the unit and to access various menus

Red LED Constantly ON: generic failure on the system, details on the LCD Blinking: battery backup function active

2 Dry Contact Relays

(NO, 30 VDC / 1 A) RL1 / RL2 - Configurable RL COM - Common Pin Other Interfaces INH - (INHIBIT) Isolated remote ON/OFF input, active for 5 – 30 VDC T SENSE - optional, remote temperature sensor for battery charging (WNTC-2MT) Modbus over USB and RS-485 interfaces Operating Temperature 1 Overtemperature protection - 40 to + 80°C Storage Temperature - 40 to + 80°C Derating (See Figure 1 and 2) Humidity Non-condensing 5 - 95% RH Life Time Expectancy At 25°C ambient, full load 281 904 h (32.2 years) Overvoltage Category Pollution Degree EN50178 IEC60664-1 I Protection Class Class I Isolation Against Enclosure 0.75 kVDC Safety Standards & Approvals UL508 (reference) EN60950 (reference) EMC Standards Emission EN55022 (CISPR11) EN55011 (CISPR22) Class B Class B Immunity EN61000-4-2 EN61000-4-3 EN61000-4-4 EN61000-4-5 Level 3 Level 3 Level 3 Level 1 Protection Degree EN60529 IP20 Vibration Sinusoidal IEC 60068-2-6 5-17.8 Hz: ±1.6 mm; 17.8-500 Hz: 2 g 2Hours / axis (X,Y,Z) Shock IEC 60068-2-27 30 g 6 ms, 20 g 11 ms; 3 bumps / direction, 18 bumps total

1 Start-up type tested: - 40°C, possible at nominal voltage with load derating

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minimum 5 minutes of operation. 3 Power rating, losses, efficiency, ripple, thermal behaviour and start-up may change outside of the nominal rated input range. Contact factory for details. Figure 1. Current Derating Curve

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tech.support@psbel.com MAIN CONNECTIONS IN: (connect to power supply in UPS mode) + = Positive DC - = Negative DC BATT/IN: (connect to battery in UPS mode or power supply in DC/DC mode) + = Positive DC - = Negative DC OUT: (connect to load) + = Positive DC - = Negative DC AUXILIARY CONNECTIONS RL1 / RL2: (programmable dry contact) RL1 = NO RL2 = NO RL COM = COM Modbus: (over RS-485, 2 wire interface) MBUS A = RX/TX MBUS B = RX/TX GND = Common INHIBIT: (5 – 30 VDC) ▪ INH+ = Positive DC ▪ INH- = Negative DC AUX: (12 – 48 VDC not regulated 5 A Max.) AUX + = Positive DC AUX - = Negative DC T SENSE: (remote temperature sensor for battery charging) Optional WNTC-2MT MINI USB TYPE 1 = VBUS (+5V) 2 = Data (D-) 3 = Data (D+) 4 = Not connected (ID) 5 = GND NUCLEAR AND MEDICAL APPLICATIONS - Products are not designed or intended for use as critical components in life support systems, equipment used in hazardous environments, or nuclear control systems. TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the date manufactured. Specifications are subject to change without notice.