2. Product Introduction
2.1. General Characteristics
The double-conversion technology in
accordance with the specification VFI-SS 111
guarantees the power supply to connected
terminal devices with a pure sinusoidal voltage.
1. The ultra-efficient PWM technology
achieves a high efficiency for an almost
sinusoidal output voltage. The high crest
factor of the converter filters any switch-on
current peaks without the loading needing
to be modified.
2. A fully digitalised control circuit provides a
high level of protection and enables future
upgrade. In-built communication capability
enhances its ability for remote control and
monitoring.
3. The multi-functional LCD/LED panel will
display various status of the UPS. The LED
display may show UPS working status,
Utility Status and UPS Abnormal status,
whilst the LCD display may show
Input/Output Voltage, Frequency, Load
Status, Inner cabinet temperature, and
Abnormal Phenomenon.
4. To protect the unit from overloading, it
automatically switches to bypass mode in
160 seconds~ 40ms (which value is
correct?) if loading is at 105%~ 150% of
rating and in case of overloading at 150%
of rating, it switches to bypass mode
immediately. It will automatically switch
back to inverter mode once overload
condition ceases.
5. If a short-circuit occurs at the output, the
UPS switches the system into standby
operation. The UPS issues an audiovisual
alarm and automatically interrupts the
current output until the short-circuit has
been corrected manually.
6. Should the unit become overheated, the
internal thermal switch will detect the heat
and switch to bypass mode and vice versa.
7. Maintenance-free sealed-type battery
minimises after-sales service.
8. The maintenance bypass switch provides
easy and safe troubleshooting or
maintenance function when the utility is
normal.
2.2. Special Features
The transformer-free converter technology with a
housing that can be mounted in a rack or used as
floor-standing enclosure allows the UPS to be
integrated even in environments with restricted
space.
1. The UPS is equipped with an intelligent
microprocessor-based controller and
offers a flexible configuration capability
with remote communication and
comprehensive overload protection.
2. A large 184 V ~ 288 V input voltage
range permits an undervoltage and
overvoltage correction without
unnecessary battery discharge and so
ensures an increased battery lifetime.
3. The cold start function ensures that the
UPS can be switched on even when no
mains voltage is present (see chapter
5.2).
4. An optimum battery management
system analyses the charging state of
the battery in order to maximise the
battery lifetime.
5. The "Active Power Factor Correction
(PFC)" control function keeps the "Input
Power Factor (PF)" of the UPS to a
value > 0.99. This allows an excellent
energy efficiency to be attained.
6. Selectable bypass input voltage
tolerance (high/low sensitivity) ensures
that the consumers are not supplied
with undervoltage or overvoltage during
bypass operation. The selectable
voltage ranges are:
(i) low sensitivity: 184 ~ 260 V
(ii) high sensitivity: 194 ~260 V.
7. Fixed selectable output voltages
(220/230/240) to satisfy the
requirements for different voltage
systems.
8. The UPS satisfies all relevant EMC
regulations.
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