Precision Trading 60 R3.0 operating instructions Troubleshooting and Repairs

Page 53

Operator Manual, Supercharger 60

R3.0

10.TROUBLESHOOTING AND REPAIRS

10.1TROUBLESHOOTING

The following are hints and directions to help you locate the most probable causes of deviation of performance as established in the procedures of section 8.

10.1.1.UNIT CHARGES ON MAIN BUT DOES NOT CHARGE ON TOPPING AND DOES NOT DISCHARGE.

Defective Topping/Discharge current selector or defective Control board.

10.1.2.UNIT CHARGES PROPERLY ONE BATTERY BUT CANNOT CHARGE TWO BATTERIES AT HIGH RATES.

Low line voltage.

10.1.3.UNIT GOES INTO VOLTAGE FAULT IMMEDIATELY OR SHORTLY AFTER STARTING UP (charge mode).

Open link or one or more cells developing a high voltage.

10.1.4.UNIT DISCHARGES CORRECTLY ONE BATTERY BUT RESULTS IN A CURRENT FAULT WHEN DISCHARGING TWO BATTERIES.

Attempting to discharge more than 20A on a battery with more than 28V or defective Monitor board.

10.1.5.THE UNIT CHARGES LOW CURRENT (BELOW 10 AMPS) PROPERLY BUT HUMS NOTICEABLY AT HIGHER CURRENTS.

One of the SCR's is inoperative, or one of the rectifiers is open.

10.1.6.UNIT CHARGES ON TOPPING AND DISCHARGES CORRECTLY BUT WILL NOT CHARGE IN MAIN.

Defective Main Current Selector or defective Control board.

10.1.7.UNIT STARTS IN THE DISCHARGE MODE BUT GOES INTO CAPACITY FAILURE IMMEDIATELY.

Battery not properly connected. Open link. Open cable.

10.1.8.THE DISCHARGE CURRENT LIMITER OPENS THE MOMENT A BATTERY IS CONNECTED TO THE CHARGER.

Shorted discharge transistors(s).

10.1.9.BURNED RESISTOR(S) IN THE DISCHARGE HEATSINK(S).

Transistor(s) shorted and discharge current limiter did not open (wrong limiter value or type).

10.1.10.RESET INDICATOR AND TIMER DISPLAY DO NOT TURN ON.

Open fuse to electronics card rack or problems with the Power circuit board or the transformer feeding it.

10.1.11.DIGITAL VOLTMETER REGISTERS A VOLTAGE (APPROXIMATELY 36

VOLTS) WITH THE UNIT IN RESET AND THE BATTERY IS NOT CONNECTED.

One or both SCR'S shorted.

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Contents Specifications Installation Calibration Table of Figures Introduction and System Description Operator Manual, Supercharger R3.0 Block Diagram Condensed Operating Instructions Constant Current Charge normal modeConstant Voltage Peak Voltage Charge Discharge Maximum Current 50 Amps Minimum Increment 0.1 AMP SpecificationsCharge OVER/UNDER Current Protection Overtemp ProtectionOvervoltage Protection Reverse Polarity ProtectionMinimum Increment DischargeMaximum Current Overheat Protection TimerTerminal Voltage Line Input Voltage Power Failure ProtectionAccuracy and Stability Time LimitsVoltmeter Digital Panel MetersControls and Displays 11 SW7 Timer Speed Selector 10 SW6 Voltage Mode SelectorSW4 Cell Selector SW5 Digital Voltmeter Input SelectorFront Panel 13 DS1B CYC END 12 DS1A Reset14 DS2A Dual 15 DS2B MainAudible Alarm Single Rate Modes of OperationConstant Current Charge Constant Voltage Charge Peak Charge Deep Cycle Full Discharge Analysis Auto CUT-OFFGeneral Operating InstructionsConstant Current Charge Peak Voltage Charge Discharge Cell Float Peak Selector Voltage Float/Peak Voltage ChartOperating Notes and Precautions Line Voltage InstallationBench Space Line Voltage Wiring, 208/230V Visual Verification Required Test Equipment and AccessoriesVerification of Performance Timer Verification Voltage Fault Test Battery Overtemp CUT-OFFDischarge Voltage CUT-OFF Reverse Polarity TestOvervoltage CUT-OFF Voltage Control Full DischargeCurrent Tracking Peak Voltage Float VoltageMeters Digital Meters see Figure Circuit Board Adjustments and CalibrationCalibration Voltmeter Meters Board Adjustments 3.2. R11 Discharge Cell Calibrate Control Switch Board Adjustments3.5.3. R25 High Current Calibrate 3.5.2. R28 LOW Current CalibrateCurrent Control Board Adjustments Control Board as ground reference for voltage measurements Operator Manual, Supercharger R3.0 Voltage Control Board Adjustments Operator Manual, Supercharger R3.0 Circuit Board Sequence Troubleshooting Troubleshooting and RepairsReset Indicator and Timer Display do not Turn on Burned Resistors in the Discharge HeatsinksCurrent Fault in CV Fault Lights on and no Audible ALARM. Unit Runs NormallyVoltage Fault in CV or Peak Current Tracking is OFF by a Small Constant AmountEquipment Required ProcedureFinding a Shorted Discharge Transistor Measuring for a shorted transistor Location of Current Limiters Power Block Diagram Circuit Boards Replaceable Modules and PartsParts OtherBattery Testing Notes Disclaimer Revision Date Revision Index

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