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INSTRUCTION / TROUBLESHOOTING MANUAL FOR MODEL A70B

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Summary of Contents for A70B

Page 1: ...EL A70B BATTERY CHARGER ECN DATE CPN42675 15349 08 8 02 14268 10 00 10571 12 96 16816 6 05 14575 2 01 13073 5 99 10411 9 96 106 BRADROCK DRIVE DES PLAINES IL 60018 1967 847 299 1188 FAX 847 299 3061 ISSUE DATE 6 90 1 92 and 1 95 INSTRUCTION DRAWING NUMBER P25 LA70B 1 ...

Page 2: ...W THE INSTRUCTIONS EXACTLY To reduce risk of battery explosion follow these instructions and those published by the battery manufacturer and manufacturer of any equipment you intend to use in the vicinity of the battery Review cautionary marking on all products PERSONAL PRECAUTIONS 1 Someone should be within range of your voice or close enough to come to your aid when you work near a battery 2 Hav...

Page 3: ...orrode and damage equipment A sealed maintenance free or valve regulated lead acid VRLA may be placed below this equipment Never allow the battery electrolyte to drip on this unit when reading the specific gravity or filling the battery Do not operate this unit in a closed in area or restrict ventilation in any way Do not set a battery on top of this unit DC CONNECTION PRECAUTIONS Connect and disc...

Page 4: ... the claim to La Marche Mfg may void warranty service for any physical damages reported for repair HANDLING WARNING Equipment can be very heavy and top heavy Use adequate manpower or equipment for handling Until the equipment is securely mounted care must be used to prevent the equipment from being accidentally tipped over NOMENCLATURE PLATES Each piece of La Marche Mfg Equipment shipped is identi...

Page 5: ... features Microprocessor based control Soft start current walk in control Automatic start stop circuitry Automatic Sensing of Fully Charged Battery Automatic 12 hour override timer 3 Hour timing after 80 normal mode 6 Hour timing after 80 equalize mode DI DT rate of change sensing 3 Selectable constant current finish rates High DC output shutdown Low and high AC voltage shutdown Digital Display In...

Page 6: ...itial battery voltage sensing is being disabled and the wrong battery could be being connected An On Off switch allows you to turn off the charger when disconnecting the battery during the charge cycle The lamps are as follows On Charge Lamp This indicates after the charger has successfully completed the autostart cycle and the input contactor has closed 80 Complete Lamp This LED indicator will fl...

Page 7: ...sary a factory service representative should be contacted Because of the stability of design the unit needs no periodic adjustment This along with the rugged construction and conservatively rated components insures long life and trouble free operation The automatic start stop circuitry senses when a battery is connected and then slowly ramps the output current up to start the charge If the dischar...

Page 8: ... lamp will light When the AC is restored the unit will turn on again and resume the charge where is left off A high voltage condition will also cause the failure light to come on 0001 Low AC voltage 0002 High AC voltage After starting the microprocessor immediately activates the 12 hour override timer This timer is independent of battery conditions and overrides all other timing functions The over...

Page 9: ...ssary to turn on the on off switch and connect a battery After the on off switch is placed in the on position and prior to the battery connection all of the LED s on the front panel will flash until a battery is connected This is the lamp test mode The digital display will hold four 4 eight s 8888 until the proper battery is connected to the charger When the battery is finally connected the ON CHA...

Page 10: ...shing of 80 light indicates a low current shutoff Usually this indicates the battery is fully charged If the charger turns off on rate the charge 80 COMPLETE light will turn on without flashing and the ON CHARGE light will turn off J If for some reason the AC input voltage falls below the factory set limit about 85 the FAILURE light will turn on and the battery charger will turn off The display wi...

Page 11: ...er 97mV adjust P4 on the S2A 122A printed circuit board counterclockwise which lowers the output until 97mV across the shunt bar is indicated 5 If AC input fuse clears when the AC contactor pulls in make sure the correct AC fuses are being used time delay fuses If the correct AC fuses are being used disconnect J3 connector from the S2A 122A printed circuit board 6 Replace blown AC fuse turn on AC ...

Page 12: ...terminals battery connected 3 Check AC voltage output on control transformer 4 If 120 Vac is present at AC contactor coil contactor may be defective 5 If 120Vac is not present disconnect 15 pin connector from the S2A 122A printed circuit board and jump pin 10 and pin 11 together If AC contactor pulls in defective S2A 122A printed circuit board Problem Failure light on CODE 0001 OR 0002 1 Check AC ...

Page 13: ...no indication on display board Check voltage across capacitor C 1 on S2A 122A drive board Voltage should be approximately 12Vdc if voltage is zero replace both the S2A 122A S2A 146 p c boards If 12 volts is present replace the S2A 146 board TROUBLESHOOTING SCR DIODE MODULES A70B 3 PHASE 1 Disconnect power transformer secondary wire from top connection of module 2 Disconnect positive buss bar from ...

Page 14: ... panel meters and alarms for accuracy 4th Year REPEAT ABOVE WITH THE ADDITION OF 1 Check relay contacts for pitting or corrosion 2 Check capacitors for leakage 7th Year REPEAT ALL WITH THE ADDITION OF 1 Filter resonating capacitors and control relays should be replaced 10th Year REPEAT ALL WITH THE ADDITION OF except replacing capacitors and control relays they should be replaced every 7 years 1 C...

Page 15: ... 2 If the purchaser elects not to return the equipment to the factory and wishes a factory service representative to make adjustments and or repairs at the equipment location La Marche s field service labor rates will apply A purchase order to cover the labor and transportation cost is required prior to the deployment of the service representative In accepting delivery of the equipment the purchas...

Page 16: ...INSTRUCTION TROUBLESHOOTING MANUAL FOR MODEL A70B PAGE 16 OF 16 ...

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