Lambda 303 Series, Руководство оператора

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CONTROLS, INDICATORS, CONNECTORS
5-4
The OVERLOAD indicator will illuminate and turn off the output if the power supply is
continuously delivering full output current for more than 500ms, allowing for automatic
recovery from a latched H.V. switch condition. In this mode, when the output current
flows for more than half a second (for example if the load is shorted or a very large ca-
pacitor bank) the power supply will turn off, automatically reset itself and turn back ON.
The power supply will turn ON and OFF with an approximate 80% duty cycle, allowing
maximum average power to be delivered without exceeding the AC input current rating.
The OVERLOAD indicator will also illuminate and turn OFF the power supply if the unit
is operated with a load charging duty cycle greater than 80% (independant of repetition
rate). If the OVERLOAD circuit is activated in this mode the supply will turn OFF and
automatically reset after approximately 500ms.
5.2.2.3 OVERVOLTAGE (Normally OFF)
The OVERVOLTAGE indicator illuminates when a higher level of voltage is present on
the output cable than the power supply is fully rated for (full scale). The
OVERVOLTAGE indicator will also illuminate if the unit is being programmed to a higher
level than the unit is rated for. The power supply will turn OFF the high voltage output
(inhibited) and may be reset by depressing the HV ON push-button when the overvolt-
age condition is no longer present.
5.2.2.4 ARC (Normally OFF)
When illuminated, the ARC indicator signals a major fault internal to the high voltage
tank of the power supply. This type of fault may be reset if the POWER is cycled; how-
ever, if it recurs, the unit should not be used any further because the output may be un-
controlled if present and could cause further damage to the supply or its load. The
power supply should then be serviced by qualified personnel.
5.2.2.5 NCR (Normally OFF - not used)
5.2.3 COOLANT status LEDs
In the event of any coolant faults the user should verify installation orientation is in ac-
cordance with section 3.4 prior to contacting Lambda Americas.
5.2.3.1 FULL (Normally ON)
When illuminated, this indicator signals that the high voltage tank in filled to the correct
level with coolant. This indicator may be extinguished if the unit is cold.
5.2.3.2 WARNING (Normally OFF)
This indicator will FLASH if the coolant level drops below its safe operation level, indicat-
ing that the coolant may be leaking (there are no environmental or safety hazards from
this coolant leaking. It will evaporate before it collects). The unit should be serviced if the
coolant is low.
5.2.3.3 LOW (Normally OFF)
The LOW indicator when illuminated indicates the coolant level is below the allowable
level to safely operate the power supply. The COOLANT LOW indicator will turn OFF
the high voltage output and it cannot be reset until the coolant level is corrected. The
unit must be serviced by authorized service personnel.