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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 Input Taps on Power Transformer are

Incorrectly Set

Verify tap settings using charger

schematic or input table found on

charger.

Incorrect, Damaged, or Loose Cable/Harness

Connections

Visually inspect and verify all internal

wiring using charger schematic.

DC Output Too High

Refer to Symptom 6.

Defective Diode Heat Sink Assembly

Refer to Appendix D.

2

DC Protection Opens

Immediately

(High Output Current)

Incorrect Battery Connected

Measure battery voltage and verify

against charger nameplate.

Reverse Polarity

Confirm polarity of DC cables with

voltmeter.

Incorrect, Damaged, or Loose Cable/Harness

Connections

Visually inspect and verify all internal

wiring using charger schematic.

Shorted Output Cables

Inspect DC cables for shorts

Shorted Battery Cells or Customer Equipment

Remove all loads and batteries from

charger and confirm charger functionality.

3

No Display and No LEDs

(If Applicable)

No AC Voltage Applied to Charger

Measure and confirm input voltage.

Charger AC protection is open

Refer to Symptom 1.

Incorrect, Damaged or Loose Cable/Harness

Connections

Visually inspect and verify all internal

wiring using charger schematic.

Defective LEDs/Display Card

Contact La Marche Service Department

for further troubleshooting instructions.

4

Meter Reading Incorrect

Voltage or Current

Incorrect, Damaged or Loose Cable/Harness

Connections

Visually inspect and verify all internal

wiring using charger schematic.

Defective Analog Voltmeter

(if applicable)

Measure DC voltage across the voltmeter

and verify meter is displaying correct

voltage.

Defective Analog Ammeter

(if applicable)

Measure current output with clamp

ammeter. Verify meter is displaying

correct current.

Incorrect Display Calibration on Display Card

(if applicable)

Measure output voltage and current;

compare to display readings. Refer to

“Display Calibration” section of the

corresponding option manual.

Incorrect Software Settings on Display Card

(if applicable)

Contact La Marche Service Department

for further troubleshooting instructions.

Defective Shunt (if applicable)
Defective Control Card

5

Low Output Voltage

or Current

No AC Input Voltage Applied to Charger

Measure and confirm input voltage.

Incorrect Battery Connected

Measure battery voltage and verify

against charger nameplate.

Incorrect, Damaged or Loose Cable/Harness

Connections

Visually inspect and verify all internal

wiring using charger schematic.

Содержание A12B Series

Страница 1: ...hemfg 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 Installation and Operation...

Страница 2: ...r any purpose not described in the operation manual Mechanical Safety This charger or parts of the charger may get very hot during normal operation use care when working nearby and do not place any it...

Страница 3: ...back for evaluation and repair CAUTION Failure to properly file a claim for shipping damages or provide a copy of the claim to La Marche may void warranty service for any physical damages reported for...

Страница 4: ...0 Operation 11 3 1 A12B Startup 11 3 2 Checking the Installation 11 3 3 Charging Modes 13 3 4 Output Voltage Adjustments 13 3 5 Power Failure Alarm 14 3 5 1 Remote Alarm Connection Procedure 14 4 0 F...

Страница 5: ...igure 5 Float Equalize Switch Potentiometers and LEDs 13 Figure 6 Power Failure Contacts 14 Figure 7 Power Failure Example Connections Customer Provided Equipment 14 Table 1 Case Type and Weight Table...

Страница 6: ...ge the battery on a taper curve from its current limiting capacity to full charge The battery charger has a specially designed transformer reactor combination which inherently compensates for variatio...

Страница 7: ...240 lbs 265 lbs 275 lbs 355 lbs 38 6 kg 40 8 kg 63 5 kg 81 7 kg 93 kg 108 9 kg 120 2 kg 124 7 kg 161 kg 130 VDC 3 Case 3 Case 6 Case 6 Case 6 Case 8A Case 8A Case 72 Case 72 Case 72 Case 140 lbs 140...

Страница 8: ...a clearance of at least 6 in 152 mm of free air must be maintained on the top bottom left and right side for cooling air Maintain 36 in 914 mm or more of clearance at the front of the charger in orde...

Страница 9: ...ght specifications Secure the charger on bolts add appropriate mounting hardware and tighten securely Refer to the figures below for mounting dimensions NOTE All dimensions are in inches For further A...

Страница 10: ...loor mounting anchor bolts and tighten securely Refer to Figure 4 for hardware specifications and floor mounting dimensions All dimensions are given in inches Case Size A B C Bolt Diameter 3 13 875 8...

Страница 11: ...nt listed on the charger nameplate NOTE Feeder breaker should be sized to match the size of the AC protection used in charger Breaker Size Fuse Size Amps Minimum Wire Size Requirement for Customer Con...

Страница 12: ...n 3 1 A12B Startup All equipment is shipped from the factory fully inspected and adjusted to manufacturer defined default values based on the model number Do not make any adjustments unless the equipm...

Страница 13: ...attery connections should be done in the following order 1 Make sure that the incoming voltage to the charger is turned off 2 Make sure the battery disconnect breaker is open 3 Connect the battery cab...

Страница 14: ...propriate accessory manual for description of selecting charging modes and equalize timer settings 3 4 Output Voltage Adjustments The output voltage of the A12B charger is set to a default value refer...

Страница 15: ...all input and output terminals If it is desired that the annunciator be active until the Power Failure alarm triggers connect the annunciator power leads to the NO and C contacts of the Power Failure...

Страница 16: ...The change that will be necessary for every model type is the output voltage adjustment call La Marche to verify that the charger in question will have the necessary output range If alarm accessories...

Страница 17: ...are open Remove dust and debris from interior of unit 2 Verify all connections are tight 3 Perform a visual inspection on all internal components 4 Check front panel meters for accuracy and LED operat...

Страница 18: ...iminary checks above use the troubleshooting chart on section 5 3 as a guideline NOTE If the problem is found to be located in the printed circuit boards the board should be replaced No attempt should...

Страница 19: ...d confirm input voltage Charger AC protection is open Refer to Symptom 1 Incorrect Damaged or Loose Cable Harness Connections Visually inspect and verify all internal wiring using charger schematic De...

Страница 20: ...s zero the power failure relay may be defective Open RC Resistors Measure resistance of component If open the resistor may be defective Defective Diode Heat Sink Assembly Refer to Appendix D Defective...

Страница 21: ...rd AC and DC Fuse Optional AC and DC Breaker Emergency Restoration The battery charger may be connected to a battery which is heavily discharged and recharge it without clearing any protective devices...

Страница 22: ...ystems 12L 18NC 19NC or 20NC A12B 3 24V 3 10 1 1 5 0 9 0 8 0 8 0 8 0 8 A12B 6 24V 6 15 1 3 1 7 1 6 1 6 1 5 1 6 A12B 10 24V 10 20 1 5 2 9 2 7 2 7 2 5 2 7 A12B 15 24V 15 25 1 7 5 4 3 4 1 4 1 1 9 1 6 3 8...

Страница 23: ...1 71 33 28 66 71 42 42 A12B 300 48V 300 400 3 91 86 86 40 33 79 86 50 50 A12B 400 48V 400 600 3 121 114 114 53 44 105 114 66 66 130 Volt Systems 54 through 60L 92 through 97NC A12B 3 130V 3 10 1 7 5 4...

Страница 24: ...aluminum Calculating Wire Size Requirements AVD K LF A CMA Table 5 Wire Size Area Table Calculating Current Carrying Capacity of Wire K LF AVD CMA MaxAmp EXAMPLE If the charger being used has a max am...

Страница 25: ...diode only one end of the diode must be disconnected 2 Clip one lead of the ohmmeter to the nipple or pigtail lead of the diode Clip the other ohmmeter lead to the aluminum heat sink 3 Note the ohmmet...

Страница 26: ...ng the first year 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 par...

Страница 27: ...for return authorization and a purchase order must be issued Replacement part s will be promptly shipped and invoiced After the defective part s are returned and inspected at the Factory if the defect...

Страница 28: ...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...

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