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  5. Installation And Operation Manual

La Marche A12B Series Installation And Operation Manual

Manual is about: Constavolt Battery Charger / Power Supply

Summary of A12B Series

  • Page 1

    I this manual is subject to change without notice. You may obtain the newest version of the manual at www.Lamarchemfg.Com 106 bradrock dr. Des plaines, il 60018-1967 cpn 40594 instruction drawing number: p25-la12b-2 tel: 847 299 1188 fax: 847 299 3061 revision a09 rev. Date: 06/17 ecn: 21475 install...

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    1 important safety instructions before using this equipment read all manuals and other documents related to this charger and other equipment connected to this charger. Always have a copy of a charger’s manual on file nearby, in a safe place; if a replacement copy of a manual is needed, it can be fou...

  • Page 3

    2 allow at least 6 inches of free air on all vented surfaces for proper cooling. Allow sufficient clearance to open the front panel for servicing. Do not operate this charger in a closed-in area or restrict ventilation in any way. Do not place charger below battery. Never allow battery electrolyte t...

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    3 table of contents important safety instructions ....................................................................................................................... 1 table of figures...................................................................................................................

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    4 table of figures figure 1 – enclosure no. 3 bolt pattern ......................................................................................................... 8 figure 2 – enclosure no. 6 bolt pattern ................................................................................................

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    5 model scope/general description the la marche model a12b series filtered battery chargers / power supplies are engineered for the demanding requirements of switchgear applications, process controls, and communications. The magnetic amplifier circuitry is designed to carry continuous and intermitte...

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    6 1.0 equipment handling 1.1 storing the a12b if the a12b is to be stored for more than a few days after delivery, it should be stored within its shipping container. The location chosen for storage should be within an ambient temperature of -40 to 185°f (-40 to 85°c) with a non-condensing relative h...

  • Page 8

    7 2.0 installing the a12b 2.1 mounting the a12b when mounting the a12b in any configuration, consider the size and weight of the charger. The wall and/or floor must be able to support the weight of the charger, as well as an additional safety factor. Refer to data sheet to verify the weight of the c...

  • Page 9

    8 2.1.1 wall-mounting the a12b wall-mounting procedure to wall-mount the a12b, install bolts on the wall rated to support the charger's weight plus a safety factor of at least four times. Refer to tables 1 and 2 for charger weight specifications. Secure the charger on bolts, add appropriate mounting...

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    9 2.1.2 floor-mounting the a12b (all enclosures) floor-mounting procedure to floor-mount the a12b, install four to six anchor bolts into the floor. Place the charger on the anchor bolts, add appropriate mounting hardware onto the floor-mounting anchor bolts, and tighten securely. Refer to figure 4 f...

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    10 2.2 making the ac input connections before beginning any work inside the charger, ensure that all incoming ac supply is de-energized. Verify that no voltage is present inside the case by using a voltmeter at all input and output terminals. Check that the source voltage and frequency match the cha...

  • Page 12

    11 2.3 configuring the dc output connections before making any of the dc output connections, make sure you read and fully understand the dc connection procedure below, including section 3.2. Select proper size for the dc wires using table 4. If the distance between the charger’s dc output and the ba...

  • Page 13

    12 dc connection procedure (for chargers with dc fuse not using battery disconnect) to prevent the dc fuse from blowing when connecting the battery, connections should be done in the following order: 1. Make sure that the incoming power to the charger is turned off. 2. Connect the negative battery c...

  • Page 14

    13 3.3 charging modes the a12b charger has two modes for dc output voltage; float mode and equalize mode. Float charging mode is used for all normal battery charging needs or to directly power dc loads. Equalize mode is used when it is necessary to equalize (or balance) the level of charge across al...

  • Page 15

    14 3.5 power failure alarm a power failure relay is provided to disconnect the automatic control from the battery and, therefore, limit the drain on the battery. One (1) set of normally open and closed contacts from this relay is connected to terminals for connection to a remote power failure alarm;...

  • Page 16

    15 4.0 frequently asked questions q : how can i tell what options are included on my a12b charger? A : every charger will have a dedicated manual cover sheet included with the charger manual, which lists all the options included. If the manual that is shipped with the charger is no longer available,...

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    16 5.0 service all work inside the a12b charger should be performed by qualified personnel. La marche is not responsible for any damages caused by an unqualified technician. Before working inside the a12b, ensure the ac power is off at the main breaker box and the battery has been removed from the c...

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    17 5.2 troubleshooting procedure troubleshooting should be performed only by trained service personnel or experienced electricians. Before setting up any complicated testing or making any conclusions, inspect the charger using the guide below. Check the following: 1. Check dc output cables, connecti...

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    18 5.3 troubleshooting chart isolate from all power sources prior to performing any interior verifications or part replacements. Symptom possible cause action 1 ac protection opens immediately (high input current) incorrect ac input voltage measure ac voltage and verify against charger nameplate. Ac...

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    19 5 low output voltage or current (continued) incorrect float/equalize voltage settings refer to section 5 for output adjustment instructions. Low output voltage condition: charger is in current limit measure output current and verify against charger nameplate. If found to be in current limit, wait...

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    20 appendix a: a12b specifications electrical ac input voltages single phase 60hz: 120, 208, 220, 240, 480 or 600 single phase 50hz: 220/240, 380 or 415 three phase 60hz: 208, 240, 480 or 600 three phase 50hz: 220/240, 380 or 415 voltage range: ± 10% from nominal frequency range: ± 5% dc output amps...

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    21 appendix b: a12b current draw (12vdc / 24vdc systems) model number dc amps dc fuse size (amps) ph a s e ac input current draw @ 100% load 60 hz units 50 hz units 120 (a) 208 (d) 220 (l) 240 (b) 480 (c) 575 (e) 240/220 (bl) 380 (g) 415 (j) 12 v o lt s y st em s (6l , 9n c , o r 1 0n c ) a12b-3-12v...

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    22 a12b current draw (48vdc / 130vdc systems) model number dc amps dc fuse size (amps) ph a s e ac input current draw @ 100% load 60 hz units 50 hz units 120 (a) 208 (d) 220 (l) 240 (b) 480 (c) 575 (e) 240/220 (bl) 380 (g) 415 (j) 48 v o lt s y st em s (24l , 36 n c , 3 7n c o r 38 n c ) a12b-3-48v ...

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    23 appendix c: power wiring guide use the following formulas and table to determine proper wire size for minimal voltage drop. At distances exceeding 10 feet, the dc wire size should be chosen to keep the voltage difference between the charger’s dc output terminals and the battery at less than 1/2 v...

  • Page 25

    24 appendix d: diode troubleshooting and replacement the silicon diode may be a source of trouble. The function of the diode is to allow the flow of current through it in one direction only. If the polarity of the conducting current is reversed, the diode will block the current flow. Thus, the diode...

  • Page 26

    25 appendix e: manufacturer’s standard warranty (i f the invoice shows that you have purchased the e xtended p arts w arranty or if you are interested in purchasing the e xtended p arts w arranty , see the m anufacturer ’ s e xtended p arts w arranty ) all la marche manufacturing co. Equipment has b...

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    26 appendix f: manufacturer’s extended parts warranty (this is your warranty if you have purchased the extended parts warranty as shown on our invoice to you or if you purchase the extended parts warranty anytime during the first 12 months after the date of our invoice) all la marche manufacturing c...

  • Page 28

    27 appendix g: document control and revision history part number: 40594 instruction number: p25 -la12b-2 issue ecn: 12036 - 6/98 21475 – 06/17 18985 – 04/11 17650 – 11/07 15761 – 2/03 14575 – 2/01 18589 – 03/10 16816 - 8/05 15349-01 – 5/01 13608 1/00