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Summary of Contents for SEC America 7058
- Page 1 SEC America Corp Model 7058 DC-DC Converter Rev 4 Owner's Manual June 3, 2018...
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Page 2: Table Of Contents
TABLE OF CONTENTS page Introduction Installation Mounting Connections Methods of Converter Activation III Performance Characteristics and Indicator Lights IV Internal Adjustment of Output Voltage Voltage Adjustment V Warranty VI Mechanical Drawing VII Electrical Specifications... -
Page 3: I Introduction
I Introduction Model 7058 is shipped in fully assembled form. The installer should locate a bag containing a quantity of (4) blade terminals intended for use with the I/O cabling to be used with the unit. After removal of the unit from its packaging it should be verified that it has suffered no damage in shipment. It is very important to follow the instructions of this manual to ensure proper connection and mounting. Model 7058 is a high power 12 Volt to a maximum of 58.4 Volt DC‐DC battery charger capable of delivering 20A to a lithium iron phosphate battery bank of 16 cells and nominal 51.2V rating. It is designed for mounting in vehicles of all types and is capable of enduring harsh vibration and shock. II Installation 2.1 Mounting Model 7058 has an overall length of 17.85 inches with mounting flanges included in this dimension. Hole mounting centers are 17.34 x 3.93 (inches) 2.2 Connections Tools Required ‐ 1 flat blade screw driver (1/4 in. wide) Figure 1 shows the connection panel view of the 7058. TBA, 1 - enable / ignition Hi Charge Float Charge TBA, 2 - 24 VDC aux. Input Circuit breakers... -
Page 4: Methods Of Converter Activation
A) Connect input +24V line to position #1 of TBB. B) Connect input GROUND to position #2 of TBB. C) Connect output (+51V nominal) line to position #3 of TBB. D) Connect output GROUND to position #2. Prior to depressing the circuit breaker buttons, installer should: 1) Ensure that hook up in steps A through D are correct. 2) Select the method of converter activation. Grounding Stud: The flat side of the unit is equipped with a ground stud which is connected to the 7058 housing. It may be connected to the battery ground of the vehicle at the user’s option. 2.3 Methods of Converter Activation (with all circuit breakers on) A) Connect terminal #1 to terminal #2 on terminal block TBA. (The 7058 is shipped from the factory with a shorting jumper in place between those terminals.) This configuration allows for converter activation by turning the source power “ON”. For this method the circuit breakers must be left in the ON position. B) Alternately the converter can be switched on from the vehicle’s ignition system. Remove the jumper between terminals #1 and #2 on TBA. To energize the charger, connect terminal 1 to 24 V through the ignition switch or another switch that would enable terminal 1 to access 12 VDC. For this method the circuit breakers must be left in ON position. C) Terminal #1 can be connected to terminal #2 through a remote ON/OFF switch or relay contacts thereby activating the charger. For this method the circuit breakers must be left in ON position. ... -
Page 5: Performance Characteristics And Indicator Lights
III Performance Characteristics and Indicator Light Functions Once 7058 is properly connected, it is ready for activation. A microprocessor controls the 7058 performance and protection functions: ON STATE FUNCTIONS Output Voltage Cycles A) Upon initial turn on, the unit comes on with a charging voltage of 58.4 VDC limited to 30A. This state is discernible by the illumination of the green light (high charge indicator). If the battery bank (load) becomes fully charged with battery charging current being less than 1.5A, the unit will stop charging and remain in a state of sensing the output voltage. In this state the amber light turns ON and the green one turns OFF. B) Should the voltage float down to 51V, the 7058 will auto adjust its voltage to 58.4 VDC which is discernible by the amber light turning off and the green light (high charge indicator) turning on. C) As the battery bank charges up again, the 7058 monitors output current. When the current dips below 1A‐2A, the charger turns off. This becomes discernible by the green light turning OFF as the amber light turns ON. D) Each time the charger is activated by the remote terminals or energized by the application of power, it goes into charge mode. Current Limit and Overload A) In charge mode, the 7058 will supply up to a maximum of 30A at 58.4 VDC and will current limit should the load demand more than 32A. B) Should severe loading occur, bringing the output voltage below 36 VDC, the unit will shut off. C) Once the unit has endured such severe overloads (B), in order for it to resume normal functions the overload must be removed. Then the charger needs to be reset by power down and then power up by any of the means described in section 2.3. Ten minutes should be allowed prior to ... - Page 6 IV Battery Type Selection Model 7058 is preprogrammed at the factory to be usable with batteries of 2 distinctive chemistries – 16 cell Lithium Iron Phosphate and 48V Lead Acid (AGM). The algorithm to charge Lithium Iron Phosphate or AGM is selectable by the position of a slide switch located on the blank panel of the unit.
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Page 7: Internal Adjustment Of Output Voltage
IV Internal Adjustment of Output Voltage There should be no need for any adjustment provided the unit is used for its intended application. In the event that there is a need to alter the output voltage, use the following procedure: Varying the adjustments of the Model 7058 requires the technician to have a stable DC power supply variable from at least 20 VDC to 30 VDC with a current capacity of at least 3A. This adjustment should be conducted with no load on the charger. To access the adjustment turn the unit upside down and remove the base plate by unscrewing the 4 securing screws in its corners. Orient the converter upside down and horizontally with the connection panel to the left as shown in figure #3. I/O terminal block Potted Module securing screws Output securing screws Vadj. Pot. Figure #3 A potentiometer can be noticed. Pink sealant compound may need to be removed to gain access. The potentiometer is used to adjust output voltage in a range of 47.5 ‐ 56.3 VDC at no load float condition (amber light is ON). 7058 is factory adjusted in the Lithium Iron Phosphate setting to 51.2 VDC output at no load (float voltage). This corresponds to a high charge voltage of 58.4. If the float voltage is changed, the high charge voltage will automatically also be altered by the same amount. 4.1) Instrumentation Configuration for Voltage Adjustment a) Hook up the unit under test as shown in Figure #4 TBA, 1 - enable / ignition... -
Page 8: Warranty
V Warranty and Repair Should your investigations indicate that your new Model 7058 is defective or damaged and your unit is still under warranty, contact SEC America Corp. at 802‐865‐8388 and obtain return merchandise authorization for credit or exchange. If the warranty period has expired or if the warranty has been violated due to operator error or misuse, call: SEC America, Corp, Repair Department, at 802‐865‐8388 or fax SEC America Corp. at 802‐865‐8389 to receive authorization for shipment back to factory for analysis and possible repair. Warranty The Model 7058 has a 2 year warranty covering parts and labor. The warranty is found on page 7 of this owner’s manual. Page 6 ... - Page 9 No warranty or re- presentation by anyone other than this Company shall be binding on us. To return a unit send only to the following address: SEC America, Corp 78 Ethan Allen Drive S. Burlington, VT 05403 PLEASE RETAIN YOUR ORIGINAL BILL OF SALE.
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Page 10: Mechanical Drawing
VI Mechanical Drawing Page 8... -
Page 11: Electrical Specifications
VII Electrical Specifications: Output Voltage: 58.4V Charge Nominal (16 cell LiFePO4) Output Voltage Adjust Range 47.5 VDC to 56.0 VDC (float) Continuous Max Load Amps: 30 ADC @ 40C ambient (Input 12.5 VDC) 22 ADC @ 60C ambient Maximum Power Dissipation: 110 Watts @ Full Load (30A, 58.4 VDC out) Maximum Input Current: 77 A (24 VDC in) - Page 12 SEC America Corp...