User`s manual
Contents
1. Fullwat SWITCHING MODE DC DC POWER CONVERTER FUM 2412 xFDC Series USER S MANUAL INTRODUCTION This FUM 2412 xFDC series of voltage reducers offer regulated 13 8VDC or 13 2VDC according to model power from 20 30VDC sources such as Land Rovers commercial vehicles recreation vehicles farming equipment and other diesel power vehicles It is implemented by using Switching Mode Power Supply technology to make it generate less heat and hence higher efficiency Advanced design quality production control and sturdy construction assure continuestability and reliability FEATURES 1 Overload Protection When the output current is being over the limitation the overload circuitry is activated and the output voltage and current are reduced to protect the unit Over Voltage Protection When the output terminal appears over the voltage output limit the over voltage protection is activated and the output voltage is shut down to protect the unit and your equipment For FUM 2412 5FDC internal input fuse will be broken and none of indicators are ON For FUM 2412 7FDC FUM 2412 12FDC amp FUM 2412 18FDC protection is always kept even though output load is removed The unit can be reset by disconnect of input about 5 10 seconds High RFI Stability The unit is designed for high protection circuitry against RFI Radio Frequency Interference provides a stable operation without affected by RFI Separate LED indicator for operation and f2. ault status Reliable clip on mounting bracket construction for easy installation even in hard to get to spot User s manual sI FUM 2412 xFDC Fullwat CONNECTIONS PANEL WWMM I000000 000 INPUT OUTPUT OPERATE 1 OPERATE INDICATOR GREEN LED Lights up when the unit is activated 2 FAULT INDICATOR RED LED Lights up when fault occurs the unit may be under protected condition of overload or short circuit 3 INPUT TERMINAL 250 type Slip On Tab 4 OUTPUT TERMINAL 250 type Slip On Tab CAUTION 1 DO NOT use the unit for equipment which requires current input higher than the max value otherwise unit may be damaged 2 DO NOT use the unit for lamps or motorized equipment that require high starting surge current otherwise the unit may be damaged 3 When the internal fuse input is broken check and sort out cause of fault before fuse replacement Only replace with fuse of the same type and rating 4 DO NOT connect input voltage outside the specified input voltage range of 18 38VDC otherwise the unit may be damaged 5 DO NOT turn ON the unit when the load is set at full load even if the loading current is within the rating of the unit 6 Place the unit at a place of well air ventilation heat is generated during operation 7 DONOT install unit near heat sensitive material as the casing of unit can get as high as 60 C User s manual mee FUM 2412 xFDC Fullwat DO NOT applied a volta
3. ck polarity is correct and check battery level is normal or not Unit will return to working condition once the fault has been corrected or removed User s manual 13 n FUM 2412 xFDC B Red LED is on Remove the load to check if green LED is on if green LED is on the unit may be in overload or short circuit protection Check the power requirement and the condition of the connected equipment which triggers the red LED Loads like high power halogen quartz lamps motorized equipment that requires on high surge starting current which is many times over its rated current will trigger the protection of the unit They are not suitable for use with the unit SPECIFICATIONS 13 2VDC 18A Maximum output current at lt 80mA lt 300mV lt 25mV lt 100mV OVP Output Over Voltage Protection Loss of earth protection Self reset protection Protections i a Reverse polarity protection b Overload protection c Short circuit protection RED LED Fault Max operating temperature 50 C Internal input fuse glass type e Mark amp E Mark r F n E4 10R 02 ovas iOS e11 72 245 95 54 3079 00 XXXX Dimension W x H x D mm 71x15x32 96x75x32 142x75x32 162x75x32 190gr 230gr 380gr 365gr Clip on mounting bracket set and screw Accessories i Slip on receptacles OR 7673 5200 0000 Rev 1 4 11 2005 amp 7673 5220 000 Rev 0 05 2007 TR 2412 xFDC Rev 1 0 12 2007 User s manual 4 FUM 2412 xFDC
4. ge source higher than 13 8VDC or 13 2VDC according to model without a proper diode to the output otherwise unit may be damaged Although the unit has very low standby current it is advisable to disconnect the DC input if unit is not used for long time CONNECTION AND OPERATION L 5 Mount the clip on mounting bracket on the place that you preferred by machina screws that provided Clip the unit onto the mounting bracket and make sure it is pushed in all the way to the bracket It is recommended to mount the unit horizontally Crimp the input and output cables with 250 type slip on receptacles that provided by a suitable crimping tools It is recommended to use different colored cable to separate the input output amp polarity The recommended gauge sizes are at least AWG 18 for FUM 2412 5FDC AWG 16 for FUM 2412 7FDC AWG 14 for FUM 2412 12FDC and AWG 12 for FUM 2412 18FDC Connect the Input Cable to positive terminal and the Input Cable to negative terminal of the 24VDC Battery firmly The green LED should lights up Turn OFF the output equipment and then make the connection to the output terminal making sure of the correct polarity Turn ON the equipment to be powered Trouble shooting A None of the indicator LED is on Check input source for open circuit and loss of earth Remove the load to check if green LED is on If green LED is still not on check input voltage level is within range che
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