S4KC SEriES USEr MAnUAL |
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2.4 Battery Charger
The battery charger utilizes energy from the utility power and precisely regulates it to continuously float charge the
batteries. The batteries are being charged whenever the S4KC is connected to utility power.
2.5 Dc-to-Dc Converter
The dc-to-dc converter utilizes energy from the battery system and raises the dc voltage to the optimum operating
voltage for the inverter. This allows the inverter to operate continuously at its optimum efficiency and voltage, thus
increasing reliability.
2.6 Battery
The S4KC utilizes valve-regulated, non-spillable, lead acid batteries. To maintain battery design life, operate the UPS in
an ambient temperature of 15°C to 25°C (59°F to 77°F). Optional external battery cabinets are available to extend battery
backup times. For backup times, see Table 13.
2.7 Dynamic Bypass
The S4KC provides an alternate path for utility power to the connected load in the unlikely event of a UPS malfunction.
Should the UPS have an overload, overtemperature, or any other UPS failure condition, the UPS automatically transfers
the connected load to bypass. Bypass operation is indicated by an audible alarm and an illuminated amber Bypass LED
(other LEDs may be illuminated to indicate the diagnosed problem). To manually transfer the connected load from the
inverter to bypass, press the Standby/Manual Bypass button once and hold it for about 2 seconds.
NOTE:
The bypass power path does nOT protect the connected equipment from disturbances in the utility supply.
