LDX-U20 is a microprocessor controlled DC-UPS rated 20 A usable in 12 V or 24 V systems. LDX-U20 monitors the voltage supplied by a DC source and in case of power failure a backup battery is connected to the load. When powered externally the unit charges the battery by an integrated battery charger supporting various battery chemistries. Multiple protections Integrated battery charger for 12 V or 24 V (or intermediate voltages) multi-chemistry batteries with a charging current up to 5 A 20 A rated load Automatic sensing of input voltage, load current and battery current 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 Remote input to inhibit the UPS function Connection for a battery thermal sensor (optional) Industrial machine control 4 keys and 1 color graphic CSTN LCD display Allows online device configuration Displays the LDX-U20 status and alarms USB communication port for remote monitoring and configuration Dry contacts Connection through USB interface Remote monitoring and configuration Firmware upgrade Same functionalities of the embedded user interface with the ease of the PC benefits LDX-U20 2 LDX-U20 11 - 28 VDC (10 - 29 VDC) 20 A 12 V or 24 V 5A Input Voltage (Range) Rated 11 - 28 VDC (10 - 29 VDC) Input Current Rated 20 A No Load Power Consumption <3W Rated Battery Voltage Other voltages possible by request Battery Chemistries Lead-Acid (charging voltage is temperature corrected with 3 mV/K/cell) Ni-MH / Ni-Cd Li-ION / LiFePO4 12 V or 24 V Maximum Battery Charge Current 5A Allowed Battery Capacity up to150 Ah Maximum Battery Current 20 A (up to 35 A for 5 seconds) Load to Battery Switch Time Battery Protections < 5 usec Overcurrent Deep discharge Reverse polarity Battery Health Monitor 1 - 300 mΩ Battery Internal Resistance Range Using Kelvin connection Additional Monitoring Functions Coulomb counter Battery temperature through optional 10kΩ NTC sensor Battery operating time since installation Number of cycles 1.5 Inch Color Graphic LCD Used to indicate the unit’s status and to access the configuration menus 4 Keys Used to program the unit and to access various menus Red LED ON: generic failure on the system, details on the LCD Blinking: battery backup function active 2 Dry Contacts (Relays) Rated 30 V / 1 A User settable between different functions (see user manual) USB Interface Mini USB connector used to interface the unit with a PC [email protected] LDX-U20 3 Efficiency Power Loss at Full Load (On Power Supply) Efficiency Power Loss at Full Load(On Battery) Battery Charger Efficiency Power Loss Maximum Backup Time Operating Ambient Temperature > 97.5% < 13 W > 96.5% < 18 W > 90% < 16 W User programmable or up to battery discharge threshold Start-up type tested:- 40°C; For temperatures <-20°C the LCD is not operating, -40°C to +60°C but the unit will operate correctly. Storage Temperature -20°C to +60°C Humidity Non-condensing 5 - 95% r.H. Life Time Expectation at 25°C ambient full load 253142 h (28.9 years) Isolation Against Enclosure 0.75 kVDC Cooling Method Natural convection cooling Safety Standards & Approvals Emission EMC Standards Immunity Protection Degree UL508 (reference) EN60950 (reference) EN55022: 2010 (CISPR22) EN55011: 2009 /A1:2010 EN61000-4-2:2008 EN61000-4-3:2006 /A2:2010 EN61000-4-4:2012 EN61000-4-5:2014 EN61000-4-11:2004 /A1:2010 Class A Class A Level 3 Level 3 Level 3 Level 1 Level 2 EN60529:1989 / A:2013 Vibration Sinusoidal IEC 60068-2-6:2007 Shock IEC 60068-2-27:2008 IP20 5-17.8 Hz: ±1.6 mm; 17.8-500 Hz: 2g 2 Hours / axis (X, Y, Z) 30 g 6 ms, 20 g 11 ms; 3 bumps / direction, 18 bumps total NOTES: For more details, performance and description regarding all parameters not indicated in the above table; please refer to user manual. Technical parameters are typical, measured in laboratory environment at 25°C, 24 V input and 24 V lead acid battery. Power rating, losses, efficiency, ripple, thermal behaviour and start-up may change outside of the nominal rated input range. Contact factory for details. Data may change without prior notice in order to improve the product. IN/Battery/OUT Connectors 2.5 mm², Pluggable screw type (24 – 12 AWG,) 6 pins pluggable, 5.08 mm pitch Auxiliary Contacts Connectors Up to 0.5 mm², Fast Pluggable type (20 AWG), 7 pins pluggable, 2.54 mm pitch Temperature Sensor Connector 2 pins, 2 mm pitch, friction lock connector USB Connector Mini USB connector Europe, Middle East +353 61 225 977 North America +1 408 785 5200 © 2016 Bel Power Solutions & Protection BCD.00849_AA Asia-Pacific +86 755 298 85888 LDX-U20 4 INPUT / OUTPUT CONNECTION: IN (+/-) = connect to DC (+/-) Power supply OUT (+/-) = connect to DC (+/-) Load BATTERY (+/-) = connect to Battery (+/-) BATTERY SENSE (+/-) = connect to Battery (+/-) for better accuracy of internal resistance measurement INHIBIT (+/-) = used to inhibits the backup function Backup = dry contact closed when LDX-U20 is running on battery Ready = programmable dry contact Weight 500 g Dimensions 54 x 115 x 110 mm Mounting Rail IEC 60715/H15/TH35-7.5(-15) Figure 1. Mechanical Drawing [email protected] LDX-U20 5 Configuration and diagnostic tool: Monitors the device status Updates the firmware Reads and writes the device configuration Reads and writes the configuration from/to a file Reads the logs Exports / imports logs from / to a file 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. Europe, Middle East +353 61 225 977 North America +1 408 785 5200 © 2016 Bel Power Solutions & Protection BCD.00849_AA Asia-Pacific +86 755 298 85888