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106 Bradrock Dr. Des Plaines, IL 60018-1967

CPN 129767

Instruction Drawing Number: P25-LA77-1

Tel: 847 299 1188

Fax: 847 299 3061

Revision A02

Rev. Date: 08/15

ECN: 20924

Installation and Operation Manual

La Marche Manufacturing Company
www.lamarchemfg.com

A77 Series

Microprocessor Controlled SCR

Filtered/Battery Eliminator Filtered Charger

Summary of Contents for A77

Page 1: ...drock Dr Des Plaines IL 60018 1967 CPN 129767 Instruction Drawing Number P25 LA77 1 Tel 847 299 1188 Fax 847 299 3061 Revision A02 Rev Date 08 15 ECN 20924 Installation and Operation Manual La Marche...

Page 2: ...at 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 for...

Page 3: ...nstalling 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 La...

Page 4: ...k Mounting the A77 6 1 2 Changing Transformer Taps 7 1 3 Making the AC Input Connections 8 1 4 Making the DC Output Connections 9 1 5 Alarms 10 1 5 1 Standard Alarms 10 1 5 2 Alarm Description 10 1 5...

Page 5: ...tings 23 3 4 1 Battery Type 23 3 4 2 Battery Cells 23 3 4 3 Float Voltage 23 3 4 4 Equalize Voltage 24 3 4 5 Equalize Mode Settings 24 3 4 6 Current Limit 24 3 4 7 Temperature Compensation 25 3 5 AC V...

Page 6: ...Routine Maintenance 32 7 2 Troubleshooting Procedure 33 7 3 Troubleshooting Chart 34 7 4 Ordering Replacement Parts 34 Appendix A AC Draw Heat Loss and Shipping Weight Single Phase 35 Appendix B AC Dr...

Page 7: ......

Page 8: ...n Connection Diagram 14 Figure 10 Load Sharing Connection 15 Figure 11 Remote Equalize Connections 16 Figure 12 Ground Detection Connections 17 Figure 13 A77 Front Panel 20 Figure 14 Example Events Lo...

Page 9: ...luded Find the model number on the nomenclature nameplate of the charger Then follow the chart to determine the configuration of your battery charger Optional Accessories Included in the Charger This...

Page 10: ...clearance of at least 6in 152mm of free air must be maintained on the top bottom and both sides for cooling air Maintain 36in 914mm or more of clearance at the front of the charger in order to allow...

Page 11: ...t recommended to attempt to mount these enclosures on any wall Wall Mount Procedure To wall mount the A77 install four 0 25 in 6 4 mm bolts on the wall rated to support the charger weight plus a safet...

Page 12: ...76 2 mm to the overall height of 10 and 477 enclosures Floor Mounting Procedure To floor mount the A77 install four bolts into the floor Place the A77 on the bolts add appropriate mounting hardware an...

Page 13: ...n a 23 rack Before installing the charger on the rack locate the placement of the conduit entrances and be sure the knockouts on the sides or bottom of the charger are accessible after the charger is...

Page 14: ...elow NOTE An A77 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 Changing...

Page 15: ...the charger nameplate BREAKER WIRE SIZE EQUIPMENT SIZE REQUIREMENT GROUNDING AMPS FOR CUSTOMER CONDUCTOR CONNECTION MINIMUM 3 14 14 5 14 14 10 14 14 15 12 12 20 12 12 25 10 12 30 10 10 40 8 10 50 8 10...

Page 16: ...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 order 1 Turn off the charger s AC and DC...

Page 17: ...in Summary alarm Customer Calibration If an alarm condition occurs for a default time of longer than 5 seconds the summary alarm relay will activate The AC Fail and HVSD alarms are default set to tri...

Page 18: ...contacts assigned for these alarms When the charger is in current limit the red Overload Current Limit indicator LED will flash When the charger is in overload the same red Overload Current Limit ind...

Page 19: ...VDC 2A 30VDC The Summary and AC Fail alarm relays located on the 368S card must be wired according to UL Class II wiring guidelines Table 7 Alarm Form C Contact Ratings All alarms contacts for the A77...

Page 20: ...tacts of the desired alarm located on the Relay Alarm Connect Card S2A 198B If it is desired that the annunciator be activated after the alarm triggers connect the annunciator leads to the NC and C co...

Page 21: ...he customer calibration The temperature compensation considers 25 C as the nominal ambient temperature and adjusts the voltage level based on the difference between the actual temperature and 25 C Wit...

Page 22: ...ualize output voltages of each individual charger to same desired level 2 Turn off all chargers 3 Connect the DC output of all chargers in parallel to the same DC load battery 4 Connect the Load Share...

Page 23: ...are not required 1 Turn off all chargers 2 Connect the Load Sharing Terminal using Section 1 7 1 or 1 7 2 above 3 Connect CANbus terminal J2 Pins 1 2 3 of Charger 1 to the CANbus terminal J2 Pins 5 6...

Page 24: ...r should have ground detection enabled All other chargers must be set to Ground Detection Defeat If an external ground detection system is used the A77 ground detection must be defeated If ground dete...

Page 25: ...nt of the ground current needed to trigger a ground fault alarm The alarm range is adjustable from 1 0 to 4 0mA and is default as 1 5mA Output Voltage Balance Ground Currents 1 11 Digital AC Voltage a...

Page 26: ...ck that the transformer is set for the correct voltage and that the input frequency matches the nameplate or the charger Check that the battery load voltage matches the DC output voltage on the namepl...

Page 27: ...xternal Probe Temperature Ground Current Only available as part of option 19U Temperature Compensation Status Phase 3 AC Metering Only available as part of option 19V Unit Clock Date and Time Phase 2...

Page 28: ...rs by default and can be changed via Customer Calibration After the timer cycles to zero the charger will automatically return to the float mode Equalize mode will not start again until it is manually...

Page 29: ...ions are included as part of the manual package only if a communications option has been ordered 3 1 Set to Defaults The first option in the settings menu is Set to Defaults This option resets all cus...

Page 30: ...the Save Load Confg menu If a configuration file already exists it will be overwritten In order to prevent data loss the Remove Drive option must be selected before physically removing the memory car...

Page 31: ...the charger will go into an equalize charging cycle The timer modes are Auto EQ OFF 7 Day Auto EQ 14 Day Auto EQ 30 Day Auto EQ and Auto EQ on LV The default setting for the equalize timer mode is Au...

Page 32: ...the customer to determine the current or voltage value at which an alarm triggers The threshold can be changed for High Voltage Shutdown AC Failure Low DC Current Low Voltage Alarm Reset Low Voltage...

Page 33: ...o alarms are set as latching except High Voltage Shutdown HVSD these alarms will clear after the condition returns to normal NOTE The HVSD alarm latches by default and cannot be changed 3 7 Communicat...

Page 34: ...disabled Upon selecting Password Enable the user will be prompted to set a new password or enter an existing password The password is a four digit pin If the password is enabled the four digit pin mu...

Page 35: ...ctionality of the alarm relay contacts The menu allows for each contact to be tested individually or all at once When a relay is being tested its contacts will change state This means if a relay is in...

Page 36: ...usly at a specified time interval In addition any charger event will be recorded at the time of occurrence The interval log records all of the same data as is listed above The default interval when se...

Page 37: ...01 51 18 6 21 8 8 1 208 31 29 212 9 213 5 213 7 3 3 0 4 0 6 0 0 9 4 9 4 Low Voltage Alarm FAIL 1 24 2015 15 01 51 18 6 21 8 8 1 208 31 29 212 9 213 5 213 7 3 3 0 4 0 6 0 0 9 4 9 4 End of Discharge Ala...

Page 38: ...ere much of the harmonic cancellation takes place Typically the 5th 7th 17th and 19th harmonics are nearly entirely canceled resulting in typically 10 ATHD Related Components Phase Shifting Power Tran...

Page 39: ...w out rectifier 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 display accuracy 4th Year REPEAT ABO...

Page 40: ...OTE If the 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 a...

Page 41: ...ions Incorrect Settings on Control Card Defective Shunt Defective Control Card S2A 368S Charger Running Hot Inadequate Ventilation Ambient is Too Hot Battery Temperature Too High Insufficient Cool Dow...

Page 42: ...7 6 275 7 940 7 208 A77D E 75 24V 75 37 21 18 9 7 344 6 1175 8 350 A77D E 100 24V 100 49 28 24 12 10 459 5 1567 9 385 48 Volt Systems A77D E 6 48V 6 6 3 3 55 1 188 0 84 A77D E 12 48V 12 12 7 6 110 3 3...

Page 43: ...61 35 31 15 12 574 4 1959 9 255 A77D E 30 130V 30 73 42 37 18 15 689 3 2352 0 300 A77D E 35 130V 35 85 49 43 21 17 804 2 2744 0 432 A77D E 40 130V 40 98 56 49 24 20 919 1 3136 1 442 A77D E 50 130V 50...

Page 44: ...86 75 37 30 1736 0 5923 5 900 A77D E 400 48V 400 115 100 50 40 2314 7 7898 1 1200 130V Systems A77D E 25 130V 25 18 16 8 6 361 7 1234 2 305 A77D E 30 130V 30 22 19 9 7 434 0 1480 9 315 A77D E 35 130V...

Page 45: ...ating then the charger output The default Low Current alarm is approximately 1 of the full scale shunt rating Unit Output Current Shunt Bar Current Rating Default Low Current Alarm Threshold 6A 10A 0...

Page 46: ...rvice 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 La Marche units will...

Page 47: ...40 Appendix E Document Control and Revision History Part Number 129767 Instruction Number P25 LA77 1 Issue ECN 20494 7 14 20856 6 15 20924 8 15...

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