Njoy Balder 1500, User Manual

Page: 13 / 37

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17: External output isolation transformer connection
Parameter 2: Allow or disallow
external output isolation transformer
connection.
ENA: If selected, it’s allowed to
connect to an external output isolation
transformer.
DIS: If selected, it’s not allowed to
connect to external output isolation
transformer. (Default)
18: Display setting for autonomy time
Parameter 2: Set up the display setting
for autonomy time
EAT: If EAT is selected, it will display the
remaining autonomy time. (Default)
RAT: If RAT is selected, it will show
accumulated autonomy time so far.
19: Acceptable input voltage range setting
Parameter 2: Set the acceptable high
voltage point and acceptable low
voltage point for input voltage range by
pressing the Down key or Up key.
HLS: Input high voltage point
280/290/300: setting the high voltage
point in parameter 2. (Default: 300Vac)
LLS: Bypass low voltage point
110/120/130/140/150/160: setting
the low voltage point in parameter 2.
(Default: 110Vac)
00: Exit setting
Exit the setting mode.
Operating Mode Description 5.6
Operating
mode
Description LCD display
Online mode
When the input voltage is
within acceptable range,
UPS will provide pure
and stable AC power to
output. The UPS will also
charge the battery in
online mode.
ECO mode
Energy saving mode:
When the input voltage is
within voltage regulation
range, UPS will bypass
voltage to output for
energy saving. The UPS
will also charge the
battery at ECO mode.
Frequency
Converter
mode
When input frequency
is within 40 Hz to 70
Hz, the UPS can be set
at a constant output
frequency, 50 Hz or 60 Hz.
The UPS will still charge
battery under this mode.
The capacity of the UPS
should be derated to 80%
when Frequency Converter
mode is enabled.
Battery
mode
When the input voltage
is beyond the acceptable
range or power failure,
the UPS will backup
power from battery and
alarm is sounding every 5
seconds.
Bypass
mode
When input voltage is
within acceptable range
but UPS is overload, UPS
will enter bypass mode
or bypass mode can be
set by front panel. Alarm
is sounding every 10
seconds.
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