La Marche A75D Installation And Operation Manual Download Page 40

33 

 

Appendix C: A75D(E) Heat Losses  

(Based on 85% efficiency at 240V Input and rated load) 

DCA 

DCV 

AC DRAW 

WATTS IN 

WATTS OUT 

WATTS LOST 

BTU/HR 

6 24 2 278 

237 

42 

143 

12 24  3 418 

355 63 214 

16 24  4 557 

473 84 285 

20 24  5 696 

592 

104 

356 

25 24  6 835 

710 

125 

428 

30 24  7 974 

828 

146 

499 

35 24  9 1253 

1065 

188 

642 

40 24 10 

1392 

1183 

209 

713 

50 24 12 

1670 

1420 

251 

856 

60 24 15 

2088 

1775 

313 

1069 

75 24 18 

2506 

2130 

376 

1283 

100 24  24 3341 

2840 

501 

1711 

  

  

  

  

  

  

  

6 48 3 418 

355 

63 

214 

12 48  6 835 

710 

125 

428 

16 48  8 1114 

947 

167 

570 

20 48 10 

1392 

1183 

209 

713 

25 48 12 

1670 

1420 

251 

856 

30 48 15 

2088 

1775 

313 

1069 

35 48 17 

2366 

2011 

355 

1212 

40 48 20 

2784 

2366 

418 

1426 

50 48 24 

3341 

2840 

501 

1711 

60 48 29 

4037 

3431 

606 

2068 

75 48 37 

5150 

4378 

773 

2638 

100  48 

49  6821 5798 1023 3493 

  

  

  

  

  

  

  

6 130 7 974 

828 

146 

499 

12 130 15 2088 

1775 

313 

1069 

16 130 20 2784 

2366 

418 

1426 

20 130 24 3341 

2840 

501 

1711 

25 130 31 4315 

3668 

647 

2210 

30 130 37 5150 

4378 

773 

2638 

35 130 43 5986 

5088 

898 

3066 

40  130  49  6821 5798 1023 3493 

50  130  61  8491 7218 1274 4349 

75 130 92 

12806 

10885 

1921 

6559 

 

Appendix D: Field Installable Accessory Kits 

La Marche offers multiple accessory kits that are available for purchase separately from the A75D(E) units.  

These accessories are installable in the field.  Not all accessory kits will be installable in all enclosures. 

46R   –  

Alarm Relay Package  

11W   –  

External Temperature Package (15 Ft) 

11Y   –  

External Temperature Package (100 Ft) 

The installation of each accessory varies between each of the A75D(E) enclosures.  The installation instructions 

for each accessory and each enclosure is included as part of the accessory kit. 

Summary of Contents for A75D

Page 1: ...pany www lamarchemfg com A75D A75DE Single Phase SCR Filtered Charger Battery Eliminator 106 Bradrock Dr Des Plaines IL 60018 1967 CPN 115668 Instruction Drawing Number P25 LA75D A75DE 1 Tel 847 299 1...

Page 2: ...that neither liquids nor any wet material come in contact with any internal components Do not operate this unit outside the input and output ratings listed on the unit nameplate Do not use this unit f...

Page 3: ...installing the product Verify that you have all the necessary parts per your order for proper assembly CAUTION Failure to properly file a claim for shipping damages or provide a copy of the claim to...

Page 4: ...5D E 2 2 1 1 Wall Mounting the A75D E 4B75 475 Only 3 2 1 2 Floor Mounting the A75D E All Cases 4 2 1 3 Rack Mounting the A75D E 5 2 2 Changing Transformer Taps 6 2 3 Making the AC Input Connections 7...

Page 5: ...4 Service Procedures 24 4 3 1 S2A 362 Control Card 25 4 3 2 S2A 225C Display Driver Card 25 4 3 3 S2A 364 Customer Connection Card 25 4 3 4 S2A 360S 12 VDC Power Supply 26 4 3 5 Heatsink Assembly 27...

Page 6: ...gram 11 Figure 11 Load Sharing Connections 12 Figure 12 Ground Detection Connections 13 Figure 13 DNP 3 Modbus Communication Card 13 Figure 14 LCD Showing System Outputs while in Float Charging Mode 1...

Page 7: ...ient temperature range The A75D E series is offered with DC output voltages of 24 48 or 130VDC with output currents from 6 to 100 Amps These chargers may be powered with 120 208 240 or 480VAC Understa...

Page 8: ...0 lbs 38 kg 44 kg 62 kg 72 kg 73 kg 86 kg 130 VDC 475 Case 475 Case 475 Case 475 Case 475 Case 475 Case 178 lbs 185 lbs 191 lbs 235 lbs 255 lbs 300 lbs 81 kg 84 kg 87 kg 107 kg 116 kg 137 kg Table 1 C...

Page 9: ...away from drips and splatter The A75D E utilizes convection cooling so a clearance of at least 6in 152mm of free air must be maintained on the top bottom and both sides for cooling air Maintain 36in...

Page 10: ...he A75D E install four 0 25 in 6 4 mm bolts on the wall rated to support the charger weight plus a safety factor of at least two times for the 475 case 6 bolts are needed Place the A75D E on the bolts...

Page 11: ...2 mm to the overall height of 4B75 and 475 cases 975 and 72 cases include the height of the bracket in their overall height Floor Mounting Procedure To floor mount the A75D E install four 0 25in 6 4mm...

Page 12: ...trances and be sure the knockouts on the sides or bottom of the charger are accessible after the charger is rack mounted The table and figure below shows rack mounting options for A75D E Rack Mounting...

Page 13: ...ng page NOTE An A75D E battery charger rated for 480 VAC or 600 VAC input uses a special transformer that has no taps The 480 VAC and 600 VAC transformers cannot be used for any other input voltage Ch...

Page 14: ...UCTOR CONNECTION MINIMUM 1 14 14 3 14 14 4 14 14 5 14 14 6 14 14 10 14 14 15 12 12 20 12 12 25 10 12 30 10 10 35 8 10 40 8 10 45 8 10 50 8 10 60 6 10 70 6 8 80 4 8 90 4 8 100 4 8 110 2 6 125 2 6 130 2...

Page 15: ...A CMA Calculating Current 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 i...

Page 16: ...automatically reset when the alarm condition is corrected However the High Voltage Shutdown and the Charger Failure alarms must be reset manually by pressing the reset button The AC Failure Alarm wil...

Page 17: ...rm Connect Card S2A 198B If it is desired that the annunciator be activated after the alarm triggers connect the annunciator leads to the NO and C contacts of the desired alarm For alarms in Set B De...

Page 18: ...nal probe can be used to measure the temperature of the battery Option 11W includes the compensation circuit and a 24 foot long temperature probe Option 11Y includes the compensation circuit and a 100...

Page 19: ...for Load Sharing must be set to the same charging mode to operate properly All connected chargers must switch into and out of equalize mode at the same time It is recommended that when load sharing is...

Page 20: ...remotely connect to the A75D E battery charger with the protocol that best suits the installation The protocols available are IEC 61850 Modbus DNP 3 0 and SNMP There are three different ports for conn...

Page 21: ...ode 0 Equalize Time Eight Hours 3 1 1 Checking the Installation Before attempting to start up the A75D E check and verify that all connections are correct Check that all terminations and contacts are...

Page 22: ...tage and DC output current as well as the time remaining in the current Equalize charge cycle Pushing the UP or DOWN button will change the display in Equalize Mode as well 3 3 Understanding the Alarm...

Page 23: ...measured A positive ground alarm would signify that the positive terminal of a floating battery has become grounded If the charger has ground detection disabled this alarm will not function See Sectio...

Page 24: ...manually activated by the user Mode 1 Displayed As P1 Mode 1 is an automatic equalize cycle that activates every seven days The length of the equalize cycle is determined by the timer setting The len...

Page 25: ...Low DC Voltage Alarm to activate The default setting is 1 98 V C for Lead Acid batteries based on the number of battery cells that the unit was designed for The number and type of cells is listed on t...

Page 26: ...0 and Modbus instruction manual Node Address Modbus Address Set To All This setting changes the node address used by the accessory communication card Option 21P 21Q This setting is only available if M...

Page 27: ...ttings have been determined to be incorrect Rotating the potentiometer clockwise raises the equalize voltage and counterclockwise lowers the equalize voltage The approximate adjustable range is as fol...

Page 28: ...r inverter with a low pressure air hose 2 Make sure all connections are tight 3 Perform a visual check on all internal components 4 Check front panel meters and alarms for accuracy 4th Year REPEAT ABO...

Page 29: ...ve batteries and customer loads make sure batteries and loads are free from defects NOTE If the problem is found to be located in the printed circuit boards the board should be replaced No attempt sho...

Page 30: ...tiometer Settings on Control Card Defective Shunt Defective Control Card S2A 362 Inadequate Ventilation Ambient is Too Hot Insufficient Cool Down Between Charges Battery Power Demand Too Great Battery...

Page 31: ...ndication POS Ground Alarm Indication NEG Ground Alarm Indication High DCV Shutdown Alarm Indication AC Fail Alarm Indication Low DCV Alarm Indication 4 4 Service Procedures This section will serve as...

Page 32: ...g the board out Installation is the reverse of removal WARNING Take care to plug all wires cables into there correct locations 4 3 2 S2A 225C Display Driver Card In all A75D E units the S2A 225C Circu...

Page 33: ...wires from the DIN Rail AC input and DC output terminals Be sure to mark or label the wires so that they can be easily reinstalled It may be a good idea to tape the wires to the top or side of the cas...

Page 34: ...WARNING take care to plug all wires cables into there correct locations 975 Case The Heatsink Assembly is located at the bottom of the unit Remove the wires connected to the Heatsink Assembly most con...

Page 35: ...bars as well as being zip tied to the plate Before removing the plate disconnect the wires that tie into the capacitor bus bars Remove the screws from the bus bar and cut the zip ties to replace each...

Page 36: ...the fuse Use a handheld multimeter to check that fuse is in fact blown Install a new fuse in the place of the blown fuse if necessary 4 3 9 S2A 198B 12V Relay Card The Relay Card is only installed as...

Page 37: ...to the top or side of the case and label the tape Next remove the cables connecting to the various circuit cards It may be a good idea to tape the cables to the bottom or side of the case and label th...

Page 38: ...may be connected to a battery which is heavily discharged and recharge it without clearing any protective devices ENVIROMENTAL Audible Noise Less than 65dBA at any point 5 feet from any vertical surfa...

Page 39: ...3 3 10 5 5 A75D E 12 48V 12 12 6 7 20 10 10 A75D E 16 48V 16 16 8 9 25 15 15 A75D E 20 48V 20 20 10 11 30 15 20 5 10 A75D E 25 48V 25 24 12 14 35 20 25 6 10 A75D E 30 48V 30 29 40 15 20 17 25 7 10 A75...

Page 40: ...2068 75 48 37 5150 4378 773 2638 100 48 49 6821 5798 1023 3493 6 130 7 974 828 146 499 12 130 15 2088 1775 313 1069 16 130 20 2784 2366 418 1426 20 130 24 3341 2840 501 1711 25 130 31 4315 3668 647 22...

Page 41: ...service arrangements 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 LaMarche units wil...

Page 42: ...on History Part Number 115668 Instruction Number P25 LA75D A75DE 1 Issue ECN 17742 01 08 21278 1 01 17 20596 10 14 20535 08 14 20317 02 14 20098 08 13 19609 07 12 19297 11 11 19164 6 11 18985 4 11 183...

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