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MODEL A36D SERIES - INSTRUCTIONS AND TROUBLESHOOTING

Page 23 of 33

7. Defective shunt.

12.3.4 Charger operates but output voltage is high.

Possible Cause:

1. Float/Equalize voltage pots not set correctly (see float/equalize adjustment procedure for proper
voltage setting).

2.

Circuit regulator assembly S2A-205 is defective.

3.

Open gate on triac TR-1.

FIGURES 1 AND 2

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Содержание A36D

Страница 1: ...GER INSTRUCTIONS FOR TELECOMMUNICATION APPLICATIONS ECN DATE CPN42892 18985 4 11 16816 2 06 14575 2 01 21063 2 16 17650 11 07 15349 06 6 02 13608 1 00 106 BRADROCK DRIVE DES PLAINES IL 60018 847 299 1...

Страница 2: ...low a spark or flame in vicinity of a battery f Be extra cautious DO NOT drop metal onto a battery It might spark or short circuit the battery or cause an explosion g Remove personal metal items such...

Страница 3: ...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 hand...

Страница 4: ...OUTPUT RATINGS 2 1 DC VOLTAGE The A36D series rectifiers provide separate voltages for floating or equalizing lead or nickel cadmium cells The float or equalize mode of operation is selected by a swi...

Страница 5: ...12 volt the 10 12 15 and 20 amp 24 volt and the 10 12 and 15 amp 48 volt models are 120 VAC input only The 150 and 200 amp 48 volt models are rated for 208 240 VAC only Three phase units are generall...

Страница 6: ...of rated output Refer to Section 9 6 for details 4 3 HIGH VOLTAGE SHUTDOWN A circuit provided for load protection which causes the rectifier to shut down should its output voltage exceed a preset valu...

Страница 7: ...8 33 6 310 9E 10 48V A1 10 120 6 7 64 39 12 48V A1 12 120 8 70 39 15 48V A1 15 120 10 110 33 20 48V ABD1 20 120 208 240 13 4 7 7 6 7 118 33 25 48V ABD1 25 120 208 240 16 8 9 7 8 4 125 33 30 48V ABD1...

Страница 8: ...at the rectifier output current has fallen below 5 of rectifier rated DC output This alarm may also trigger the summary failure alarm contacts provided YES is selected in the calibration routine if lo...

Страница 9: ...ed for floor installation Case number 39 is designed for both 19 inch 23 inch wide relay rack with EIA standard mounting centers 4 12 ELECTRONIC EQUALIZE TIMER The equalize timer assembly is a micropr...

Страница 10: ...233 803 A36D 75 24V 2329 1980 349 1205 A36D 100 24V 3106 2640 466 1606 A36D 150 24V 4659 3960 699 2410 A36D 200 24V 6212 5280 932 3213 A36D 10 48V 621 528 93 312 A36D 12 48V 745 633 112 383 A36D 15 48...

Страница 11: ...able 2 lists the AC input and the DC output minimum wire size requirements At distances exceeding 10 feet the DC wire size should be chosen to keep the voltage difference between the units DC output t...

Страница 12: ...d 6 6 POWER CABLING FORMULAS The following section may be used to calculate the wire size requirements for wire lengths in excess of 10 ft Refer to TABLE 3 CMA CROSS SECTION OF WIRE IN CIRCULAR MILS A...

Страница 13: ...requency listed on the charger nameplate For units with transformer taps verify that the tap has been set to the correct AC input See Section 3 1 for instructions on changing the transformer tap Deter...

Страница 14: ...t and relay rack terminals Connect the proper battery cable to the ground bar or battery rectifier output terminal 3 Energize the unit by turning the AC breaker to the ON position This will charge the...

Страница 15: ...t the unit with no load into the equalize mode and then back to the float mode The units should share load equally 8 0 OPERATION 8 1 START UP When all connections have been made place the units AC bre...

Страница 16: ...ave a DC load or battery on the rectifier s output When the DC voltage exceeds the setting the high voltage HVSD LED will be on solid indicating high voltage shutdown CAUTION Do not exceed the system...

Страница 17: ...is located on the front panel of the unit clockwise raises the equalize voltage For adjustable range see Section 2 2 In the equalize position the rectifier will maintain the battery at the voltage le...

Страница 18: ...HIGH DC VOLTAGE 5 SECONDS HIGH VOLTAGE SHUTDOWN 20 SECONDS LOW DC CURRENT 5 SECONDS TIMER MODE 30 SECONDS for Mode 4 HIGH VOLTAGE SHUTDOWN WORKS WHEN A HIGH VOLTAGE SHUTDOWN CONDITION EXISTS ALONG WIT...

Страница 19: ...ch again to cancel the equalize cycle Mode 0 is manually operated MODE 1 DISPLAY indicates P1 This mode of operation automatically starts an equalize cycle every 7 days The length of this cycle is aga...

Страница 20: ...the triac TR 1 to make the necessary corrections The triac is timed from the AC output of the transformer PT This assembly also produces the current limit and the current walk in features The regulat...

Страница 21: ...s with customer order 3 Check input connections input voltage and line breaker size 4 Check for shipping damage loose connections broken wires etc 5 Certain failures can be caused by defective batteri...

Страница 22: ...g page 6 H V shutdown improperly set too low 7 Open gate or wire on triac TR 1 12 3 2 Open DC Protection Possible Cause 1 Shorted power diode or diode module repair replace as required 2 Shorted batte...

Страница 23: ...hunt 12 3 4 Charger operates but output voltage is high Possible Cause 1 Float Equalize voltage pots not set correctly see float equalize adjustment procedure for proper voltage setting 2 Circuit regu...

Страница 24: ...00 scale Refer to Figure 1 2 Disconnect the triac to be checked Using an ohmmeter measure the resistance between main terminals MT1 and MT2 in both directions A good device will indicate open circuit...

Страница 25: ...or leads Momentarily short circuit the capacitor leads to assure complete discharge Connect the meter test leads to the capacitor leads or terminals and observe indicated resistance A good capacitor w...

Страница 26: ...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...

Страница 27: ...urchaser 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...

Страница 28: ...pections parts replacements and testing performed by factory personnel Should it be necessary to return a piece of equipment or parts to the factory the customer or sales representative must obtain au...

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