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Summary of Contents for Lamarche A75MD
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Page 1: Battery Charger
MODEL A75MD MINING BATTERY CHARGER Digital Volt/Amp Meter and Electronic Timer ECN/DATE CPN 124710 21527 – 8/17 19536 – 5/12 106 BRADROCK DRIVE DES PLAINES, IL. 60018-1967 (847) 299-1188 FAX: (847) 299-3061 Instruction Drawing Number: P25-LA75MD-1 Revision: A01 Rev. Date: 08/17... -
Page 2: Important Safety Instructions
INSTRUCTION / TROUBLESHOOTING MANUAL FOR MODEL A75MD IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS. This manual contains important safety and operating instructions. Before using this equipment, read all instructions and cautionary markings on (1) unit, (2) battery, and (3) product using the battery. -
Page 3: Receiving Instructions
INSTRUCTION / TROUBLESHOOTING MANUAL FOR MODEL A75MD RECEIVING INSTRUCTIONS GENERAL EQUIPMENT INFORMATION CAUTION: To ensure safe installation and operation, the information given in the instruction manual should be read and understood before installing or using the equipment. RECEIVING INSTRUCTIONS Unpacking and Inspection: Examine the shipping crate upon arrival. If there is obvious damage, describe on the receiving documents. - Page 4 INSTRUCTION / TROUBLESHOOTING MANUAL FOR MODEL A75MD MODEL A75MD BATTERY CHARGER The Model A75MD is a SCR controlled industrial battery charger for use on electric vehicle batteries. It is designed to recharge a battery of the proper amp-hour capacity in eight hours.
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Page 5: Front Panel Indicators
INSTRUCTION / TROUBLESHOOTING MANUAL FOR MODEL A75MD FRONT PANEL INDICATORS The membrane panel incorporates a Vacuum Fluorescent Display (VFD), Mode button for selecting Standard or Equalize Charge or change calibration settings, UP and DOWN arrow buttons, for navigating through the display options and calibration settings, and indicator LEDs. - Page 6 INSTRUCTION / TROUBLESHOOTING MANUAL FOR MODEL A75MD The "Fault" lamp will light and the VFD will display "Phase 1 Override Timer". 5. Phase 2 Override Timer - If the charge curve does not reach Phase 3 / Finish Rate stage within appropriate time limit (default –...
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Page 7: Installation
INSTRUCTION / TROUBLESHOOTING MANUAL FOR MODEL A75MD will not start and the VFD will indicate "Wrong Battery". A STOP pushbutton is provided to stop the charging cycle. Be sure to push this button before disconnecting the battery during the charge cycle. If the charger goes thru a normal charge complete cycle, there is no need to push the STOP button prior to disconnecting the battery. - Page 8 INSTRUCTION / TROUBLESHOOTING MANUAL FOR MODEL A75MD The La Marche Model A75MD charger is designed to operate on a specific type of battery with a specified number of cells. The nameplate on the charger indicates the type and number of cells required.
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Page 9: Operation
INSTRUCTION / TROUBLESHOOTING MANUAL FOR MODEL A75MD OPERATION After the installation has been completed, the Model A75MD is ready for operation. Be sure that the battery charger is of the correct type for the battery to be charged. CAREFULLY READ AND ADHERE TO ALL BATTERY AND BATTERY CHARGER INSTRUCTIONS AND SAFETY WARNINGS. - Page 10 INSTRUCTION / TROUBLESHOOTING MANUAL FOR MODEL A75MD flash drive. The file name is called SETTINGS.CSV. 14. Saving Settings – No input required. Customer Calibration changes are saved automatically. * NOTE: DCA Start, DCA Finish and DCV1 REF are critical charge curve parameters which should not be changed unless the settings have been determined to be incorrect.
- Page 11 INSTRUCTION / TROUBLESHOOTING MANUAL FOR MODEL A75MD 5. Charge Time – Displays the projected total time that it will take to charge the battery. This screen will display “Not at Finish” until the charger reaches the finish rate and the timer starts.
- Page 12 DATA LOG OPTION OBTAINING LOG FROM UNIT In order to review the data log files from the A75MD, you will need to have access to a computer. This can be a laptop brought down into the mine, or a computer that is above ground.
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Page 13: Understanding The Log File
UNDERSTANDING THE LOG FILE Below is an example of an actual output log file from the A75MD data logger. The title row has been modified to conserve space on this page. This output file “lamarche.csv” will appear on the USB flash drive. This file can be opened using Microsoft ®... - Page 14 INSTRUCTION / TROUBLESHOOTING MANUAL FOR MODEL A75MD Charger AH Capacity is the Amp-Hour Capacity that the charger has been set for. This is generally only set once, but it can be adjusted for different Amp-Hour batteries with-in the charger’s range.
- Page 15 INSTRUCTION / TROUBLESHOOTING MANUAL FOR MODEL A75MD This next section details each of the charge cycles shown in the log file example above. Charge Cycle 1, 2, 3: Charge cycles 1, 2, and 3 do not appear on this log file because the USB flash drive they were written to has been removed.
- Page 16 INSTRUCTION / TROUBLESHOOTING MANUAL FOR MODEL A75MD COMBINING SPLIT LOG FILES There may be situations where the user has to use a different USB flash drive for data logging. One example is the data files need to read above ground, so the flash drive is replaced. If this were to happen the data log would be separated onto multiple files.
- Page 17 If you save the log file keeping the name as LAMARCHE.CSV the flash drive can be plugged back into the charger and the logging will continue from the end of the of the log file as if it were never removed.
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Page 18: Flow Chart
INSTRUCTION / TROUBLESHOOTING MANUAL FOR MODEL A75MD FLOW CHART PAGE 18 OF 22... - Page 19 INSTRUCTION / TROUBLESHOOTING MANUAL FOR MODEL A75MD A75MD TROUBLESHOOTING INSTRUCTIONS Before troubleshooting unit, check for shipping damage. (i.e. broken wires, loose connections, etc.) Quick-Check A75MD Trouble Analysis Problem: Blown AC input fuse. 1. Check AC input voltage with tap setting on power transformer and control transformer. If AC input and tap setting agree, see step #2.
- Page 20 INSTRUCTION / TROUBLESHOOTING MANUAL FOR MODEL A75MD SCR/SCR MODULES TROUBLESHOOTING GUIDE 1. Disconnect the positive and negative bus bars from module. 2. Disconnect the secondary wire of power transformer from the SCR/SCR module. 3. Remove both Plug and Play assembly plugs.
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Page 21: General Maintenance Procedure
INSTRUCTION / TROUBLESHOOTING MANUAL FOR MODEL A75MD General Maintenance Procedure Yearly 1. Blow out charger with a low-pressure air hose. 2. Make sure all connections are tight. 3. Perform a visual check on all internal components. 4. Check front panel meters for accuracy. -
Page 22: Manufacturer's Warranty
Should minor adjustments be required, the local La Marche sales representative should be contacted to provide this service only. All sales are final. Only standard LaMarche units will be considered for return. A 25% restocking fee is charged when return is factory authorized. Special units are not returnable.
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