UB10.245 DC-UPS, DUAL OUTPUT DC-UPS, DUAL OUTPUT ■ ■ ■ ■ ■ ■ ■ ■ ■ 24V DC-UPS With an Additional 12V Output for Various Applications Only One 12V Battery Required 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 The UB10.245 uninterruptible power supply (UPS) controller along with a standard 24V power supply and one 12V battery can bridge power failures or voltage fluctuations. This unit can supply and bridge both a 24V load as well as a 12V load at the same time. The 12V is generated by a DC/DC converter from the 24V output. Therefore, systems that utilize 24V control circuits and require 12V for e.g. remote radio telemetry can be supplied with only one UB10.245 DC-UPS controller. 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. Input voltage DC-UPS Dual output 12V Load e.g.: radio transmitter 24Vdc 22.5-30Vdc Output voltage 0.23V lower as (normal mode) input voltage 12V Output voltage 22.25V (buffer mode) 12V Output current 0 - 15A (normal mode) 0 - 5A Output current 0 - 10A 10 – 15A for 5s (buffer mode) 0 - 5A Total output 360W power 240W Allowed batteries 3.9Ah to 40Ah Temperature range -25 to +70°C Derating 6W/°C Dimensions 49x124x117mm Buffer time typ. 6’30” 3. ORDER NUMBERS DC-UPS Nominal Input range Typ., 24V output 12V output 24V output at 10A 12V output at 5A 24V output 12V output 24V output 24V output 12V output Normal mode Buffer mode VRLA lead acid Operational +50 to +70°C WxHxD 7Ah battery module 24V 7A, 12V 5A 26Ah module 24V 7A, 12V 5A Battery module 12V 7Ah Mounting kit w/o battery Battery module 12V 26Ah Mounting kit w/o battery Panel/Wall mount bracket June. 2010 / Rev. 1.1 Datasheet DS-UB10.245-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

UB10.245 DC-UPS, DUAL OUTPUT 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,...

UB10.245 DC-UPS, DUAL OUTPUT 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...

I 6. OUTPUT IN NORMAL MODE_ The total output power of 360W can be shifted dynamically between the two outputs. Output voltage 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 output 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. 0-15A Continuously allowed, lower if the 12V output is loaded. _min. 12.3A Output if 12V output is loaded with 5A._ Short-circuit...

UB10.245 DC-UPS, DUAL OUTPUT 7. OUTPUT IN BUFFER MODE If the input voltage falls below the transfer threshold level, the DC-UPS starts buffering without any interruption or voltage dips. The transfer threshold level is typically 80mV higher than the 24V output voltage in buffer mode. Buffering is possible even if the battery is not fully charged. 24V Output Output voltage Ripple and noise voltage Output current Short-circuit current Short-circuit current Output is stabilized and independent from battery voltage ±1%, at no load, ±1%, at 10A output current 20Hz to 20MHz, 50Ohm Continuously allowed,...

UB10.245 DC-UPS, DUAL OUTPUT Fig. 7-3 Available output current in buffer mode Fig. 7-4 24V Output voltage vs. output current in buffer mode, typ. Output Voltage Output Current Output Current Continuously available Available for 5s then auto switching to curve Buffering will stop after 5s Buffering will stop after 5s Fig. 7-5 12V Output voltage vs. output current in normal or buffer mode, typ. Output Voltage Output Current June. 2010 / Rev. 1.1 Datasheet DS-UB10.245-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...

UB10.245 DC-UPS, DUAL OUTPUT 8. BATTERY INPUT The DC-UPS requires one 12V VRLA battery to buffer the 24V and 12V 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...

UB10.245 DC-UPS, DUAL OUTPUT 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 24V output with the standard battery modules at 20°C. Buffer time with battery module UZK12.071 Buffer time with battery module UZK12.261 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 5A output current *) At 10A output current *) At 5A output current, see Fig. 9-1 **) At 10A output current, see Fig. 9-1 **) 2 Minimum...