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13 

 

2.7 

Enabling Load Sharing 

All A36D chargers include the Load Sharing feature. Load sharing allows the user to parallel with any identical 

A36D to share a DC load and therefore reduce the strain on each charger. Chargers to be paralleled 

MUST be 

the same output (voltage and current). 

Load Sharing Procedure 
Before making any connections to the A36D, ensure that the AC power is off at the main breaker box and that 

all of the chargers’ breakers are off. Verify that no voltage is present by using a voltmeter at all input and 

output terminals. 

 

 

 

 

 

 

   

1.

 

Connect the DC output of all chargers in parallel to the same DC load/battery.   

2.

 

Locate terminal strip TS-5 inside the chargers. 

3.

 

Connect the LS terminal of one charger to the LS terminal of the next charger. Refer to Figure 15.  

4.

 

Once batteries are fully charged and/or loads are stabilized, turn OFF all chargers except for one. 

5.

 

Take a voltage reading on the output of the charger.  

6.

 

Turn on the next charger, turn off the first charger.  

7.

 

Set the output voltage of the next charger to match the first by adjusting the Float potentiometer.  

8.

 

After all chargers have been adjusted, turn ON all chargers. 

9.

 

Follow the same procedure for setting the Equalize voltage. 

 

2.8 Remote 

Equalize 

A terminal is provided on charger (RE) for a Remote Equalize function. The charger may be remotely forced into 
Equalize by connecting the “RE” terminal (on TS-5 terminal, as shown on Figure 12) to negative. 
Caution: 
Damage to the unit will result if the Remote Equalize Terminals are shorted to any other AC or DC 

voltage source or ground on positive grounded chargers. In a system, all charger “RE” terminals are 

connected together and when any one master charger is put into Equalize, all chargers will go into 

Equalize and display will read “RE”. To return to Float Mode, this master charger must be returned to 
the Float Mode. 

NOTE:  Remote equalize can only be used with other A36D battery chargers. 

 

2.9 

Remote Voltage Sensing 

Provisions for remote DC voltage sensing are provided. The sensing circuit is activated when wires from the 
battery or load are brought back to Terminals RS + (RSP) and RS- (RSN) of the charger remote sensing circuit.  

Positive must be connected to Terminal RS+, negative to Terminal RS- (refer to Figure 12). The positive sense 

lead should contain an external 1-amp fuse for negative ground system. The negative sense lead should be 

fused for positive ground system. 

When remote sensing is wired, the unit output may have to be readjusted to compensate for the protection 
diodes on the circuit board.   
CAUTION: The polarity of the sensing terminals is critical. Check and verify the polarity carefully.

Figure 12 – Load Sharing Connection 

(Schematic Wiring)

 

Содержание A36D

Страница 1: ...36D Controlled Ferroresonant Rectifier Power Supply Installation and Operation Manual 106 Bradrock Dr Des Plaines 60018 1967 Tel 847 299 1188 Fax 847 299 3061 CPN 129389 Instruction Drawing Number P25...

Страница 2: ...me in contact with any internal components Do not operate this charger outside the input and output ratings listed on the charger nameplate Do not use this charger for any purpose not described in the...

Страница 3: ...ger sent 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 rep...

Страница 4: ...nnections 7 2 4 DC Output Connections 8 2 5 Alarm Connections 9 2 5 1 Alarm Connection Procedure 10 2 5 2 Understanding the Alarms 11 2 6 Installing External Temperature Compensation Option 11W 12 2 7...

Страница 5: ...oubleshooting Chart 29 4 3 1 Ground and Short Circuit Test 29 4 3 2 Troubleshooting the TRIAC 30 4 3 3 Troubleshooting and Replacing Power Silicon Diodes Modules 31 4 3 4 Checking Capacitors 31 Append...

Страница 6: ...9 Figure 10 Example Connections Customer Provided Equipment Error Bookmark not defined Figure 11 Temperature Compensation Connection External and Internal Error Bookmark not defined Figure 12 Load Sha...

Страница 7: ...ed with 120 208 220 240 380 or 480VAC Understanding the Model Number The A36D model number is coded to describe the options that are included Find the model number on the nomenclature nameplate of the...

Страница 8: ...Output Voltage Frequency Ampere Rating 10 ADC 12 ADC 15 ADC 20 ADC 25 ADC 30 ADC 50 ADC 12 VDC 60 Hz 39 Case 39 Case 39 Case 33 Case 33 Case 45 lbs 50 lbs 54 lbs 78 lbs 99 lbs 20 4 kg 22 7 kg 24 5 kg...

Страница 9: ...99 6 kg 48 VDC 60 Hz 9D Case 9D Case 72 Case 72 Case 43 Case 44 Case 44 Case 260 lbs 286 lbs 528 lbs 572 lbs 755 lbs 900 lbs 1193 lbs 117 9 kg 129 7 kg 239 5 kg 259 5 kg 342 5 kg 408 2 kg 541 1 kg 50...

Страница 10: ...nt of the charger in order to allow for operation and maintenance The bolts or screws used to secure the charger should be sufficient length to assure a vibration free mounting The preferred fastener...

Страница 11: ...ocedure Before installing the charger on the rack locate the conduit entrances and assure the knockouts on the top sides or bottom of the charger are accessible after the charger is rack mounted To ra...

Страница 12: ...nchor bolts into the floor Place the charger on the bolts add appropriate mounting hardware and tighten securely The figure below shows the footprint and the bolt size of each A36D enclosure style All...

Страница 13: ...ections to the input terminals as shown in the table and figure below 2 2 1 Changing Transformer Taps Procedure Before beginning any work inside the charger enclosure ensure that all incoming AC suppl...

Страница 14: ...Size Fuse Size Amps AWG Minimum Wire Size Requirement for Customer Connection AWG Minimum Wire Size for Equipment Grounding 3 14 14 5 14 14 10 14 14 15 14 14 20 12 12 25 10 12 30 10 10 40 8 10 50 8 1...

Страница 15: ...urrent Carrying Capacity of Wire K LF AVD CMA MaxAmp DC Connection Procedure To prevent the DC circuit breaker from tripping when connecting the battery connections should be done in the following ord...

Страница 16: ...econds the Summary alarm relay will activate if the corresponding alarm is included in the Summary alarm The HVSD alarm is default set to trigger after 20 seconds When an alarm activates the specific...

Страница 17: ...s to the NC and C contacts of the desired alarm EXAMPLE A customer wants a green lamp to be illuminated at all times and wants a red lamp to illuminate and a speaker to sound when the Summary alarm tr...

Страница 18: ...ill turn on if the output DC breaker fuse has been opened In the case that the DC protection is opened the bottom line of the display will read OPEN DC PROT AC POWER FAIL ALARM will trigger the green...

Страница 19: ...n 11W includes the compensation circuit and a 24 foot long temperature probe Option 11Y includes the compensation circuit and a 100 foot long temperature probe With either option approximately two fee...

Страница 20: ...is provided on charger RE for a Remote Equalize function The charger may be remotely forced into Equalize by connecting the RE terminal on TS 5 terminal as shown on Figure 12 to negative Caution Damag...

Страница 21: ...e between the port on the communication board and the port on the computer For more details on connection instructions as well as operation instructions refer to the DNP 3 0 Modbus SCADA Interface ins...

Страница 22: ...t on output current rating 5 Overload Reset 5 of the Overload threshold Current Limit 115 of nominal output current 5 High DC Voltage 2 45 V C 1 60 V C 5 High DC Voltage Reset 5 of the High DC Voltage...

Страница 23: ...ndard to the A36D The digital control board is a more attractive and user friendly option with many additional features over the standard LED analog control board Figure 15 A36D Front Panel After the...

Страница 24: ...l not start again until it is manually activated by the user Mode 1 7 Day Auto EQ Mode 1 is an automatic Equalize cycle that activates every 7 days The length of the Equalize cycle is determined by th...

Страница 25: ...Setting The float voltage adjustment is set at the factory at 2 25 V C LA 2 25 V C VRLA or 1 4 V C NC The Float voltage increments by 0 1V Select Float Voltage Setting and press then ENTER button Pre...

Страница 26: ...not included in the basic Settings Menu The Advanced Settings Menu is divided into 6 submenus Equalize Timer Settings Advanced Alarm Settings Temperature Compensation Communication Settings LCD Setti...

Страница 27: ...alarm contacts are set to latch the alarm will not clear until the ALARM RESET button is pressed even if the alarm condition returns to normal By default no alarms are set as latching Except High Volt...

Страница 28: ...255 255 255 000 DNP Gateway 192 168 000 001 DNP TCP Port Number 20000 Read Only Mode No No Yes Chargers with MODBUS Option 21Q Setting Default Setting Selection Modbus Type TCP TCP Serial Modbus Addre...

Страница 29: ...ed from the factory fully tested and operational As part of planned maintenance users may want to be able to re test functionality of the alarm LEDs and relays The Test Menu allows the user to test bo...

Страница 30: ...23 3 6 A36D Customer Configuration Menu Structure...

Страница 31: ...24...

Страница 32: ...25...

Страница 33: ...26...

Страница 34: ...r vents 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 LE...

Страница 35: ...e problem is found to be located in the printed circuit boards the board should be replaced No attempt should be made to repair circuit boards in the field La Marche Service Technicians are available...

Страница 36: ...Connections on DC Breaker Inspect DC cable connections and assure proper insertion Incorrect Battery Connected Measure battery voltage and verify against charger nameplate 3 Low Output Voltage or Cur...

Страница 37: ...one terminal of the input to one terminal of the output Meter should not indicate If the meter reads full scale deflection this indicates an AC DC short During shipping an AC wire may rub against the...

Страница 38: ...istance in either direction indicating an open circuit 4 All diodes must be checked in the event that more than one diode is defective 5 If the diode is defective remove the defective diode from the h...

Страница 39: ...l breaker is rated at 10KAIC Emergency Restoration The battery charger may be connected to a battery which is heavily discharged and recharge it without clearing any protective devices ENVIROMENTAL Au...

Страница 40: ...6D 15 24V 15 5 7 5 A36D 20 24V 20 6 7 10 A36D 25 24V 25 8 4 4 2 4 8 15 7 5 7 5 4 2 4 6 7 5 A36D 30 24V 30 10 5 5 8 15 7 5 7 5 5 5 5 7 5 A36D 50 24V 50 16 8 8 4 9 7 30 15 15 8 4 9 2 15 A36D 75 24V 75 2...

Страница 41: ...y Breaker BD3 240 208V C3 480V 5G3 380V 24 Volt Systems A36D 200 24V 200 16 9 19 5 25 8 5 15 10 7 15 A36D 300 24V 300 25 4 29 3 35 12 7 20 16 20 A36D 400 24V 400 33 9 39 1 50 16 9 25 21 4 25 48 Volt S...

Страница 42: ...46 150 A36D 12 24V 372 316 56 191 A36D 15 24V 466 396 70 241 A36D 20 24V 621 528 93 321 A36D 25 24V 776 660 116 402 A36D 30 24V 932 792 140 482 A36D 50 24V 1553 1320 233 803 A36D 75 24V 2329 1980 349...

Страница 43: ...uring 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...

Страница 44: ...s 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 authorization from the facto...

Страница 45: ...Appendix F Document Control and Revision History Part Number 129389 Instruction Number P25 LA36DSERIES 2 Issue ECN 20117 4 09 13 21738 03 18 21655 12 17 21063 10 17 21063 02 16 21183 2 12 16 20117 09...

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