Precision Trading 60 R3.0 - Manual (Page 53)

Operator Manual, Supercharger 60 R3.0
Page 53 of 62
10. TROUBLESHOOTING AND REPAIRS
10.1 TROUBLESHOOTING
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.