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UBC10.241
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Catalog excerpts

UBC10.241 - 1

DC-UPS WITH INTEGRATED BATTERY ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Compact and Easy to Install Longest Buffer Time in Class Easy Battery Access Stable Output Voltage in Buffer Mode Superior Battery Management for Longest Battery Life Temperature Compensated Battery Charging Comprehensive Diagnostics and Monitoring Functions Replace Battery Signal Included Electronically Overload and Short Circuit Protected 50% Power Reserves Selectable Buffer Time Limiter This uninterruptible power supply (UPS) controller UBC10.241 with integrated battery is a compact addition to standard 24V power supplies to bridge power failures or voltage fluctuations. Expensive downtimes, long restart cycles and loss of data can be avoided. Input voltage range Output current The DC-UPS includes 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 UBC10.241 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. nom. 24Vdc 22.5-30Vdc min. 15A min. 10A Output voltage typ. 0.23V lower as input voltage 22.25V Integrated battery 12V 5Ah Temperature range 0 to 40°C Dimensions 123x124x119mm Buffer time typ. 16’15” typ. 6’15” In addition to the UBC10.241, a separate UPS controller (UB10.241) which requires an external 12V battery is available when a longer buffer time is required. Buffer mode, 10A VRLA lead acid Operational WxHxD At 5A load At 10A load Typical setup of a DC-UPS system with the UBC10.241: The UBC10.241 has one integrated 12V 5Ah high current VRLA battery, which is easy to change. Normal mode Buffer mode Normal mode Standard unit Jul. 2014 / Rev. 1.2 DS-UBC10.241-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. w w w .pulspow er.com

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UBC10.241 - 2

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...

Open the catalog to page 2
UBC10.241 - 3

5. INPUT Input voltage Input voltage ranges Allowed input voltage ripple Allowed voltage between input and earth (ground) Turn-on voltage Input current **) 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 does not exceed this level....

Open the catalog to page 3
UBC10.241 - 4

□innemsionj 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...

Open the catalog to page 4
UBC10.241 - 5

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...

Open the catalog to page 5
UBC10.241 - 6

8. BATTERY The required 12V VRLA battery is included with this unit. For more details on battery requirements see chapter 26. nom. DC 12V 9.0 – 15.0V Battery voltage Battery voltage range Allowed battery capacity Battery charging method Battery charging current End-of-charge-voltage (CV-mode) Battery charging time Battery discharging current **) Deep discharge protection ***) Maintenance-free 12V VRLA lead acid battery. Continuously allowed, except deep discharge protection Absolute maximum voltage with no damage to the unit. Above this voltage level battery charging is possible...

Open the catalog to page 6
UBC10.241 - 7

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. Buffer time with 5Ah high-current 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 **) Minimum value includes 20% aging and requires a fully charged (min. 24h) battery. **) Typical value includes 10% aging and requires a fully charged (min. 24h) battery. Fig. 9-1 Buffer time vs. output current with a 5Ah high current...

Open the catalog to page 7
UBC10.241 - 8

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 Fig. 10-2 Losses at 24V, typ. Power losses versus output current in normal mode Efficiency vs. output current in normal mode Output Current Output Current 11. FUNCTIONAL DIAGRAM Fig. 11-1 Functional diagram DC-UPS Control unit with integrated battery + 24V Power Supply Input Fuse & Reverse Polarity Protection + Electronic Current...

Open the catalog to page 8

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