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La Marche Manufacturing Company
www.lamarchemfg.com
A12B Series
Constavolt
Battery Charger / Power Supply
Installation and Operation Manual
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
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Table of Contents
Troubleshooting
Related Manuals for La Marche A12B Series
Summary of Contents for La Marche A12B Series
- Page 1 La Marche Manufacturing Company www.lamarchemfg.com A12B Series Constavolt Battery Charger / Power Supply Installation and Operation Manual 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...
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Page 2: Important Safety Instructions
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 found at www.lamarchemfg.com. - Page 3 If any damage is observed, take pictures and contact the carrier immediately to file a damage claim. Contact La Marche for a Return Material Authorization number to have the charger sent back for evaluation and repair.
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Page 4: Table Of Contents
Table of Contents Important Safety Instructions ........................1 Table of Figures............................4 Model Scope/General Description........................5 Understanding the Model Number......................... 5 Optional Accessories Included in the Charger ....................5 Equipment Handling.......................... 6 Storing the A12B........................... 6 Moving the A12B........................... 6 Installing the A12B ........................... -
Page 5: Table Of Figures
Table of Figures Figure 1 – Enclosure No. 3 Bolt Pattern ......................8 Figure 2 – Enclosure No. 6 Bolt Pattern ......................8 Figure 3 – Enclosure No. 7 Bolt Pattern ......................8 Figure 4 – A12B Enclosure Footprint ......................9 Figure 5 –... -
Page 6: Model Scope/General Description
(if any) refer to the cover page of the manual package. If the manual package that is included with the charger is no longer available, contact La Marche and provide the model or serial number of the charger... -
Page 7: Equipment Handling
Equipment Handling 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 humidity of 0 to 95%. -
Page 8: Installing The A12B
Installing the A12B 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 charger and the method of mounting using Table 3 below. -
Page 9: Wall-Mounting The A12B
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 hardware, and tighten securely. -
Page 10: Floor-Mounting The A12B (All Enclosures)
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 for hardware specifications and floor-mounting dimensions. -
Page 11: Making The Ac Input Connections
Table 4 – AC/DC & Ground Wire Size Minimum Requirements (All wires specified in the table are rated at 90 °C or 194 °F) NOTE: These are recommended sizes per La Marche Standards. The National Electrical Code (NEC) and Local Wiring Codes must be followed. -
Page 12: Configuring The Dc Output Connections
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 battery/load exceeds 10 feet, use the Power Wiring Guide in Appendix C to minimize the voltage drop across the wire distance. - Page 13 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.
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Page 14: Charging Modes
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 all cells present in the battery. -
Page 15: Power Failure Alarm
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: Frequently Asked Questions
: 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, call La Marche and provide the five digit accessory code at the end of the model number. -
Page 17: Service
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 charger’s DC output terminals, either by removing the battery cables or exercising... -
Page 18: Troubleshooting Procedure
La Marche Service Technicians are available to help with troubleshooting or with scheduling charger service. When calling for a service inquiry or for troubleshooting assistance, be sure to have all of the following information on hand: 1. -
Page 19: Troubleshooting Chart
(If Applicable) Incorrect, Damaged or Loose Cable/Harness Visually inspect and verify all internal Connections wiring using charger schematic. Contact La Marche Service Department Defective LEDs/Display Card for further troubleshooting instructions. Incorrect, Damaged or Loose Cable/Harness Visually inspect and verify all internal Connections wiring using charger schematic. -
Page 20: Ordering Replacement Parts
Marche Service Department for further troubleshooting. Ordering Replacement Parts Contact La Marche to place an order for spare or replacement parts. To order replacement parts; please provide the model and serial number of the battery charger, the part needed and the quantity required. -
Page 21: Appendix A: A12B Specifications
Appendix A: A12B Specifications ELECTRICAL 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 AC Input Voltages Three Phase 50Hz: 220/240, 380 or 415 Voltage Range: ±... -
Page 22: Appendix B: A12B Current Draw (12Vdc / 24Vdc Systems)
Appendix B: A12B Current Draw (12VDC / 24VDC Systems) AC Input Current Draw @ 100% Load Model Fuse 60 Hz Units 50 Hz Units Number Amps Size 240/220 (Amps) (BL) A12B-3-12V 0.4 / 0.4 A12B-6-12V 0.8 / 0.8 A12B-10-12V 1.3 / 1.4 A12B-15-12V 1.9 / 2.1 A12B-20-12V... - Page 23 A12B Current Draw (48VDC / 130VDC Systems) AC Input Current Draw @ 100% Load Model Fuse 60 Hz Units 50 Hz Units Number Amps Size 240/220 (Amps) (BL) A12B-3-48V 1.5 / 1.6 A12B-6-48V 3 / 3.3 A12B-10-48V 2.5* 2.1* 5 / 5.5 3.2* 3.2* A12B-15-48V...
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Page 24: Appendix C: Power Wiring Guide
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 volt when the charger is fully loaded. -
Page 25: Appendix D: Diode Troubleshooting And Replacement
If the diode is open, the ohmmeter will show infinite resistance, indicating an open circuit with the ohmmeter leads in either direction. 4. All diodes must be checked in the event that more than one diode is defective. 5. If the diode is defective, contact La Marche for complete heat sink replacement. -
Page 26: Appendix E: Manufacturer's Standard Warranty
If the Extended Warranty is purchased, the parts required for repair will also be at no cost but La Marche will notify the Purchaser of the costs of Labor to replace the defective part(s). -
Page 27: Appendix F: Manufacturer's Extended Parts 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 La Marche units will be considered for return. A 25% restocking fee is charged when return is factory authorized. Special units are not returnable. -
Page 28: Appendix G: Document Control And Revision History
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 –...
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