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INSTALLATION AND TROUBLESHOOTING INFORMATION FOR MODEL A31

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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) 299-3061

ISSUE DATE: 12266 - 8/98

INSTRUCTION DRAWING NUMBER:

P25-

LA31STD-1

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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