DC-UPS CONTROL UNIT ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Requires Only One 12V Battery for a 24V Output Allows Batteries Between 17Ah and 130Ah Battery Charging with Temperature Tracking Stable Output Voltage in Buffer Mode Superior Battery Management for Longest Battery Life Comprehensive Diagnostic and Monitoring Functions Replace Battery Signal Included Electronically Overload and Short Circuit Protected 50% Power Reserves 3 Year Warranty This uninterruptible power supply (UPS) controller UB10.242 is an addition to standard 24V power supplies to bridge power failures of remote or emergency systems which must be kept fully in operation for e.g. 72 hours. Input voltage range Output current The DC-UPS includes an internal temperature sensor and a professional battery management system which charges and monitors the battery to achieve the longest battery service life as well as many diagnostic functions that ensure a reliable operation of the entire system. A unique feature of the UB10 Series is that only one 12V battery is required to buffer the 24V output. This makes matching batteries unnecessary and allows a precise battery charging and testing. UB10-Series Normal mode Buffer mode Normal mode Buffer mode, 10A VRLA lead acid WxHxD 26Ah battery 100Ah battery Typical setup of a DC-UPS system: AC Related products battery included larger battery sizes nom. 24Vdc 22.5-30Vdc min.15A min. 10A Output voltage typ. 0.23V lower as input voltage 22.25V Allowed batteries 17Ah to 130Ah Temperature range -25 to +50°C Dimensions 49x124x117mm Buffer time (at 10A) typ. 55 minutes typ. 4 hours Panel/Wall mount bracket Oct. 2009 / Rev. 1.0 DS-UB10.242-EN All parameters are specified at an input voltage of 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. It is assumed that the input power source can deliver a sufficient output current. www.pulspower.com Phone +49 89 9278 0

INTENDED USE The unit shall only be installed and put into operation by qualified personnel. This unit is designed for installation in an enclosure and is intended for general use, such as in industrial control, office, communication, and instrumentation equipment. Do not use this device in aircraft, trains and nuclear equipment, where malfunctioning of the power supply may cause severe personal injury or threaten human life. TERMINOLOGY AND ABREVIATIONS DC-UPS Uninterruptible power supply with DC-Input. Normal mode Describes a condition where the battery is charged, the input voltage is in range...

5. INPUT Input voltage Input voltage ranges Allowed input voltage ripple Allowed voltage between input and earth (ground) Turn-on voltage Input current **) External capacitors on the input Continuous operation, see Fig. 5-1 Temporarily allowed, no damage to the DC-UPS *) Absolute maximum input voltage with no damage to the DC-UPS The DC-UPS switches into buffer mode and delivers output voltage from the battery if the input was above the turn-on level before and all other buffer conditions are fulfilled. Bandwidth <400Hz Bandwidth 400Hz to 1kHz The output does not switch on if the input voltage...

□innefUSIOfU U-Series I 6. OUTPUT IN NORMAL MODE_ Output voltage in normal mode nom. DC 24V The output voltage follows the input voltage reduced by the input to output voltage drop. Voltage drop between input and max. 0.3V At 10A output current, see Fig. 6-1 for typical values max. 0.45V At 15A output current, see Fig. 6-1 for typical values Ripple and noise voltage max. 20mVpp 20Hz to 20MHz, 50Ohm *) Output current nom. 15A Continuously allowed Output power nom. 360W Continuously allowed Short-circuit current min. 17.9A Load impedance lOOmOhm, see Fig. 6-2 for typical values max. 21A Load impedance...

7. OUTPUT IN BUFFER MODE If the input voltage falls below a certain value (transfer threshold level), the DC-UPS starts buffering without any interruption or voltage dips. Buffering is possible even if the battery is not fully charged. Output voltage in buffer mode Transfer threshold for buffering Ripple and noise voltage Output current Short-circuit current Output voltage is stabilized and independent from battery voltage 22.45V ±1%, at no load, 22.25V ±1%, at 10A output current 80mV higher than the output voltage in buffer mode 20mVpp 20Hz to 20MHz, 50Ohm 10A Continuously allowed 15A < 5s with...

8. BATTERY INPUT The DC-UPS requires one 12V VRLA battery to buffer the 24V output. Battery voltage Battery voltage range max. typ. min. max. max. Allowed battery sizes Internal battery resistance Battery charging method Battery charging current (CC-mode) End-of-charge-voltage (CV-mode) Battery charging time Battery discharging current **) Deep discharge protection ***) Use one maintenance-free 12V VRLA lead acid battery or one battery module which is listed in the chapter accessories. Continuously allowed, except deep discharge protection Absolute maximum voltage with no damage to the unit Above...

9. BUFFER TIME The buffer time depends on the capacity and performance of the battery as well as the load current. The diagram below shows the typical buffer times of the standard battery modules. Buffer time with 26Ah battery (UZK12.261) Buffer time with 100Ah battery At 5A output current *) At 10A output current *) At 5A output current, see Fig. 9-1 **) At 10A output current, see Fig. 9-1 **) At 0.5A output current *) At 10A output current *) At 0.5A output current, see Fig. 9-1 **) At 10A output current, see Fig. 9-1 **) 2 Minimum value includes 20% aging of the battery and a cable length...

10. EFFICIENCY AND POWER LOSSES Efficiency Power losses Normal mode, 10A output current, battery fully charged Normal mode, 0A output current, battery fully charged Normal mode, 10A output current, battery fully charged During battery charging, 0A output current Buffer mode, 10A output current Fig. 10-2 Losses at 24V, typ. Power losses versus output current Efficiency vs. output current in normal mode A: Buffer Mode B: Charging Mode C: Normal Mode Output Current 11. FUNCTIONAL DIAGRAM Fig. 11-1 Functional diagram Input Fuse & Reverse Polarity Protection Electronic Current Limiter Battery Charger...