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 ? batt ery 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 i nhibit 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 w ith the ease of the pc benefits
2 ldx - u20 tech.support@psbel.com ldx - u20 11 - 28 v dc (10 - 29 v dc ) 20 a 12 v or 24 v 5 a input voltage (range) rated 11 - 28 v dc (10 - 29 v dc ) input current rated 20 a no load power consumption < 3 w rated battery voltage other voltages possible by request 12 v or 24 v battery chemistries lead - acid (charging voltage is temperature corrected with 3 mv/k/cell) ni - mh / ni - cd li - ion / lifepo 4 maximum battery charge current 5 a allowed battery capacity up to150 ah maximum battery current 20 a (up to 35 a for 5 seconds) load to battery switch time < 5 usec battery protections overcurrent deep discharge reverse polarity battery health monitor battery internal resistance range using kelvin connection 1 - 300 m 1.5 inch color graphic lcd used to indicate the units status and to access the configuration menus
ldx - u20 3 asia - pacific +86 755 298 85888 europe, middle east +353 61 225 977 north america +1 408 785 5200 ? 2016 bel power solutions & protection bcd.00 849 _ a a efficiency power loss at full load (on power supply) > 97.5% < 13 w efficiency power loss at full load(on battery) > 96.5% < 18 w battery charger efficiency power loss > 90% < 16 w maximum backup time user programmable or up to battery discharge threshold operating ambient temperature start - up type tested: - 40c; for temperatures < - 20c the lcd is not operating, but the unit will operate correctly. - 40c to +60c storage temperature - 20c to +60c humidity non - condensing 5 - 95% r.h. life time expectation at 25c ambient full load 253142 h (28.9 years) isolation against enclosure 0.75 kvdc cooling method natural convection cooling safety standards & approvals ul508 (reference) en60950 (reference) emc standards emission en55022: 2010 (cispr22) en55011: 2009 /a1:2010 class a class a immunity en61000 - 4 - 2:2008 en61000 - 4 - 3:2006 /a2:2010 en61000 - 4 - 4:2012 en61000 - 4 - 5:2014 en61000 - 4 - 11:2004 /a1:2010 level 3 level 3 level 3 level 1 level 2 protection degree en60529:1989 / a:2013 ip20 vibration s inusoidal iec 60068 - 2 - 6:2007 5 - 17.8 hz: 1.6 mm; 17.8 - 500 hz: 2g 2 hours / axis (x, y, z) shock iec 60068 - 2 - 27:2008 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 25c, 24 v input and 24 v lead acid battery. ? power rating, losses, efficiency, ripple, thermal behaviour and s tart - 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 C
4 ldx - u20 tech.support@psbel.com 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 5 0 0 g dimensions 54 x 115 x 110 mm mounting rail iec 60715/h15/th35 - 7.5( - 15) figure 1 . mechanical dr awing
ldx - u20 5 asia - pacific +86 755 298 85888 europe, middle east +353 61 225 977 north america +1 408 785 5200 ? 2016 bel power solutions & protection bcd.00 849 _ a a 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.
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