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5. Operation Modes
Frequency Conversion
Mode
When the UPS is manually set in converter
mode, the output frequency can be set as
50Hz or 60Hz. After the output frequency
is set up, the system will automatically
disable the bypass function. Once the
inverter shuts down, there is no bypass
output. During converter mode, the
NORMAL LED indicator (
NORMAL
)
illuminates (green).
Manual Bypass Mode
If UPS system maintenance or repair
is required, the UPS system may be
bypassed without interrupting the supply
of power to the attached load.
Warning: The UPS system must be
de-energized completely before
performing maintenance or repair
by shutting it down completely after
switching to manual bypass mode.
BYPA.
MAINS
LOAD
Batteries
Rectifier
Inverter
(Figure 5-7: Path of Electrical Power through the UPS in Converter Mode)
(Figure 5-6: Path of Electrical Power through the UPS in Manual Bypass Mode)
BYPA.
MAINS
LOAD
Batteries
Rectifier
Inverter
