Riello UPS Sentinel Dual (High Power) (3.3 - 10 kVA) User Manual
Page 56

56
U
SE
FUNCTION
DESCRIPTION
PREDEFINED
POSSIBLE CONFIGURATIONS
MODE
Battery test
Time interval for the
automatic battery test
40 hours
Disabled
1 ÷ 1000 in steps of 1 hour
Alarm threshold
for maximum
load
Selects the overload
user limit
Disabled
Disabled
0 ÷ 103 in steps of 1%
Display
brightness
Selects the level of
brightness of the LCD
Maximum
Minimum ÷ Maximum in 20 steps
Sound alarm
Selects the mode of
operation of the sound
alarm
Reduced
Normal
Reduced: does not sound for
momentary intervention of the bypass
ADVANCED FUNCTIONS
Input frequency
tolerance
Selects the permitted
range for the input
frequency for
switchover to bypass
and for output
synchronization
± 5%
± 0.25%
± 0.5%
± 0.75%
± 1 ÷ ±10 in steps of 1%
Bypass voltage
thresholds
Selects the permitted
voltage range for
switchover to bypass
Low: 180V
High: 264V
Low :
180 ÷ 200 in steps of 1V
High:
250 ÷ 264 in steps of 1V
Bypass voltage
thresholds for
ECO
Selects the permitted
voltage range for ECO
mode operation
Low: 200V
High: 253V
Low: 180 ÷ 220 in steps of 1V
High:
240 ÷ 264 in steps of 1V
Sensitivity of
intervention for
ECO mode
Selects the sensitivity
of intervention during
operation in ECO
mode
Normal
Low
Normal
High
Load power
supply in stand-
by
Power supply of the
load on bypass with
UPS switched of
(stand-by status)
Disabled
(load NOT
powered)
Disabled (not powered)
Enabled (powered)
Bypass operation
Selects the mode for
use of the bypass line
Normal
Normal
Disabled with input/output
synchronization
Disabled without input/output
synchronization