La Marche TPSD Installation And Operation Manual
Also see for TPSD: Instructions
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Contents
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304.3 Symptoms & Causes4.3.1 AC Breaker TripsPossible Cause:1. Wrong AC input voltage.2. The AC input taps on power transformer set incorrectly.(See section 2.2.1 Changing Transformer Taps procedure)3. An AC to DC short or AC or DC short to ground.(See section 4.3.5 Ground and Short Circuit Test)4. High DC output voltage. Check battery voltage for proper number of cells. Check control fuse on alarm interface card. Float/Equalize voltage potentiometers not set properly.(See sections 3.6 Float Voltage Setting and 3.7 Equalize Voltage Setting) Disconnect battery and loads from rectifier output terminals, put F/E switch in the float position, andapply AC input voltage to rectifier. If DC voltage rises above 2.5 V/C, circuit regulator assembly or“informer” option may be defective.5. Check for shorted power diodes or diode modules (SD1).(See section 4.3.7 Troubleshooting and Replacing Power Silicon Diodes/Modules)6. High Voltage shutdown improperly set.7. Open gate or wire on triac TR-1.(See section 4.3.6 Troubleshooting the TRIAC)4.3.2 Open DC Fuse or BreakerPossible Cause:1. Shorted power diode or diode module.(Repair/Replace as required)(See section 4.3.7 Troubleshooting and Replacing Power Silicon Diodes/Modules)2. Shorted battery cells or defective customer equipment.3. Shorted output cables.4. Capacitors not pre-charged.5. Shorted C3 capacitors.6. Loose connections on the DC fuse.4.3.3 Charger Operates but Output Voltage/Current LowPossible Cause:1. Float/Equalize voltage potentiometers not set properly.(See sections 3.6 Float Voltage Setting and 3.7 Equalize Voltage Setting)2. Check power diodes or diode modules and triac.(See section 4.3.6 Troubleshooting the TRIAC and 4.3.7 Troubleshooting Diodes)3. Control assembly is defective.(S2A-205, replace as required)4. Defective display.5. Unit in current limit.6. Resonating capacitor open.7. Defective shunt.4.3.4 Charger Operates but Output Voltage is High.Possible Cause:1. Float/Equalize voltage potentiometers not set properly.(See sections 3.6 Float Voltage Setting and 3.7 Equalize Voltage Setting)2. Control assembly is defective.(S2A-205, replace as required)3. Open gate on triac TR-1.(See section 4.3.6 Troubleshooting the TRIAC) |
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