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INSTALLATION AND TROUBLESHOOTING INFORMATION FOR MODEL A31 

PAGE 2 OF 15 

 

 

1.

 

SAVE  THESE  INSTRUCTIONS

.    This  manual  contains  important  safety  and  operating  instructions.    Before 

using  this  equipment,  read  all  instructions  and  cautionary  markings  on    (1)  unit,  (2)  battery,  and  (3)  product 
using the battery. 

2.

 

CAUTION:

  To reduce risk of injury and/or damage to the batteries, use only the type of batteries specified on 

the charger nameplate. 

3.

 

Do not expose equipment to rain or snow. 

4.

 

Do  not  operate  equipment  if  it  has  received  a  sharp  blow,  been  dropped,  or  otherwise  damaged  in  any  way; 
take it to a qualified serviceman. 

5.

 

Do not disassemble this unit; take it to a qualified serviceman when service or repair is required.  Incorrect re-
assembly may result in a risk of electric shock or fire. 

6.

 

To reduce risk of electric shock, disconnect this unit from the AC supply, batteries and loads before attempting 
any maintenance or cleaning.  Turning off controls will not reduce this risk. 

7.

 

WARNING

 – RISK OF EXPLOSIVE GASES 

a.

 

Working  in  the  vicinity  of  a  battery  is  dangerous.    Some  batteries  generate  explosive  gases  during  normal  battery 
operation.    For  this  reason,  it  is  of  utmost  importance  that  each  time  before  using  this  unit,  you  read  this  manual  and 
follow the instructions 

b.

 

To  reduce  risk  of  battery  explosion,  follow  these  instructions  and  those  published  by  the  battery  manufacturer  and 
manufacturer  of  any  equipment  you  intend  to  use  in  the  vicinity  of  the  battery.    Review  cautionary  marking  on  all 
products. 

8.

 

PERSONAL PRECAUTIONS: 

a.

 

Someone should be within range of your voice or close enough to come to your aid when you work near a battery. 

b.

 

Have plenty of fresh water and soap nearby in case the battery electrolyte contacts skin, clothing, or eyes. 

c.

 

Wear complete eye protection and clothing protection.  Avoid touching eyes while working near a battery. 

d.

 

If the battery electrolyte contacts skin or clothing, wash immediately with soap and water.  If the electrolyte enters the 
eye,  immediately  flood  the  eye  with  running  cold  water  for  at  least  ten  (10)  minutes  and  get  medical  attention 
immediately. 

e.

 

Never smoke or allow 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 as rings, bracelets, necklaces, and watches when working with a battery.  A battery 
can produce a short-circuit current high enough to weld these items causing severe burns. 

h.

 

NEVER charge a frozen battery. 

i.

 

Do not use battery charger for charging dry-cell batteries that are commonly used with home appliances.  These batteries 
may burst and cause injury to person or damage to property. 

9.

 

PREPARING TO CHARGE 

a.

 

If it is necessary to remove the battery connections, always remove grounded terminal from the battery first.  Make sure 
all loads are disconnected and unit is off, so as not to cause an arc. 

b.

 

Be sure the area around the battery is well ventilated while the battery is being charged. 

c.

 

When cleaning battery terminals, be careful to keep corrosion from coming in contact with eyes. 

d.

 

Study  all  the  battery  manufacturer’s  specific  precautions  such  as  removing  or  not  removing  cell  caps  while  charging, 
recommended rates of charge, and maintenance procedures. 

e.

 

Follow the battery manufacturer's recharging instructions. 

10.

 

UNIT LOCATION 

a.

 

Never  place  this  unit  directly  above  the  standard  flooded  battery.    Gases  from  the  battery  will  corrode  and  damage 
equipment.  A sealed maintenance free or valve regulated lead acid (VRLA) may be placed below this equipment. 

b.

 

Never allow the battery electrolyte to drip on this unit when reading the specific gravity or filling the battery. 

c.

 

Do not operate this unit in a closed-in area or restrict ventilation in any way. 

d.

 

Do not set any battery on top of this unit. 

11.

 

D.C. CONNECTION PRECAUTIONS 

Connect and disconnect DC output cables only after setting all of this unit's switches to off position and removing AC 
input supply.  Do not pull on output cables when disconnecting charger from battery. 

12.

 

GROUNDING INSTRUCTIONS 

This  battery  charger  should  be  connected  to  a  grounded,  metal,  permanent  wiring  system;  or  an  equipment 
grounding conductor should be run with circuit conductors and connected to equipment-grounding terminal or lead 
on battery charger.  Connections to battery should comply with all local codes and ordinances. 

IMPORTANT SAFETY INSTRUCTIONS 

Summary of Contents for A31

Page 1: ...15 A31 DC TO AC SINE WAVE INVERTER ECN DATE CPN40966 16816 09 05 15884 4 03 14575 2 01 18601 03 10 16651 01 05 15349 05 6 02 13608 1 00 106 BRADROCK DRIVE DES PLAINES IL 60018 847 299 1188 FAX 847 299...

Page 2: ...r allow 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 s...

Page 3: ...of 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...

Page 4: ...put ranges 2 2 OUTPUT CURRENT Measured at rated output See chart on specification sheet 2 3 REGULATION Steady state output voltage remains within 4 of any input voltage within 1 75 volts cell to 2 4 v...

Page 5: ...ded as an option 5 2 PRE CHARGE CIRCUIT See Section 8 5 Installation and Operating Instructions 5 3 OUTPUT PROTECTION a Circuit Breaker b Fused bypass AC line alternate source c Fixed current limit at...

Page 6: ...should be mounted so that ventilating openings are not blocked and air entering the cabinet does not exceed 50 degrees C 122 degrees F There should be at least 6 of free space around the enclosure Wh...

Page 7: ...ime release the PCB place the DCB to the on position and turn the inverter on with the DC switch SW 1 If the green LED READY does not light check the type and number of cells of the battery to verify...

Page 8: ...has a 1 millisecond static switch Option codes 22P or 22S it will have a S2A 239A circuit board After the pre charge instructions are complete turn on the AC output breaker of the inverter The LED s o...

Page 9: ...f about 3 cycles higher or lower than the inverter rated output frequency If the bypass line frequency for instance was at 50 Hz the unit output frequency would go down to about 57 Hz but no further I...

Page 10: ...rating 10 3 QUICK CHECK TROUBLE ANALYSIS SYMPTOM POSSIBLE CAUSE INPUT FUSE OR OPTIONAL DC BREAKER TRIPS A Capacitor pre charge circuitry improperly being used B Shorted C1 C2 or C4 Capacitor C Defecti...

Page 11: ...forms must be zero to approximately 80 volt positive peaks dual trace oscilloscope on 48Vdc input units On 24Vdc input units the two square waveforms must be zero to approximately 40 volt positive pea...

Page 12: ...ith the IGBT Modules With an ohmmeter measure the resistance between Terminal 1 collector and Terminal 2 emitter negative lead on Terminal 1 should read low resistance Reverse the meter leads and it s...

Page 13: ...on the C2 capacitors if the capacitors do not start to charge DC input voltage and your ready LED does not come on check the pre charge resistor on off switch in the off position and C2 capacitors if...

Page 14: ...4 Check front 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 TH...

Page 15: ...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 service labo...

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